WEBVTT 00:00.000 --> 00:30.000 position:50% align:top line:0% *This machine-generated transcript may have errors. If remediation or a manually-generated transcript is needed, please contact NLM Support at https://support.nlm.nih.gov.* 00:03.540 --> 00:03.750 okay. 00:35.340 --> 00:37.970 Radiographic processing is necessary for the 00:37.970 --> 00:40.540 production of the useful visible image. 00:40.680 --> 00:43.540 It links exposure to interpretation and 00:43.540 --> 00:44.240 influences. 00:44.240 --> 00:47.230 Quality maintenance programs and general 00:47.230 --> 00:48.560 guidelines are presented. 00:49.040 --> 00:51.720 This discussion includes lubrication, 00:51.760 --> 00:54.310 maintenance and troubleshooting related to 00:54.310 --> 00:57.160 radiographic processing and the automatic processor 00:59.940 --> 01:02.080 in radiographic processing. 01:02.080 --> 01:02.560 Of course, 01:02.560 --> 01:05.060 we have the need to provide 01:05.070 --> 01:07.900 consistent quality to the production of the 01:07.900 --> 01:08.850 visible image. 01:09.640 --> 01:12.070 The automatic process in itself was invented. 01:12.070 --> 01:15.040 It was derived to provide us with electromechanical system 01:15.040 --> 01:17.990 that would provide us consistency of the processing situation. 01:18.170 --> 01:20.440 Specifically the chemical reactions which are 01:20.650 --> 01:23.150 undertaken to produce the visible image, 01:23.150 --> 01:24.210 the useful image. 01:24.290 --> 01:26.600 So we have electromechanical device. 01:26.690 --> 01:28.860 But this device is not an elaborate 01:29.200 --> 01:31.920 computer operated mechanism that is 01:32.040 --> 01:33.130 self sustaining. 01:33.480 --> 01:34.790 It does have problems. 01:34.790 --> 01:35.920 It does need maintenance. 01:35.930 --> 01:38.640 It does need a knowledgeable operator who can 01:38.640 --> 01:39.210 service it, 01:39.220 --> 01:41.790 who can maintain it and thereby 01:42.010 --> 01:42.830 effect, 01:42.840 --> 01:43.640 if you will. 01:43.690 --> 01:46.050 A certain level of electromechanical 01:46.050 --> 01:46.950 consistency, 01:47.340 --> 01:50.160 the consistency of the system itself. 01:50.230 --> 01:52.860 There is a relationship between maintenance and troubleshooting. 01:54.240 --> 01:57.100 The troubleshooting aspect is simply a failure 01:57.110 --> 01:58.560 of your maintenance program. 01:58.570 --> 02:01.340 So one way to judge whether or not you have an effective maintenance 02:01.340 --> 02:04.070 program is to ascertain well how much trouble 02:04.070 --> 02:05.130 shooting do you do? 02:05.250 --> 02:06.590 Is this a once a day, 02:06.600 --> 02:07.260 uh, 02:07.640 --> 02:08.240 function? 02:08.240 --> 02:11.090 Is it the situation where you're constantly in 02:11.090 --> 02:11.790 that process, 02:11.790 --> 02:11.870 er, 02:11.870 --> 02:13.460 trying to fix it or maintain it, 02:13.940 --> 02:15.760 repair it or just it? 02:16.140 --> 02:19.140 Or is it that you basically only have to 02:19.150 --> 02:22.150 service machine once every couple weeks or so? 02:22.640 --> 02:23.560 So troubleshooting? 02:23.560 --> 02:26.420 The more you do is a good indication of how 02:26.430 --> 02:29.270 good or bad that your basic maintenance program, 02:29.270 --> 02:29.960 maybe, 02:30.440 --> 02:31.670 as we look at the slide, 02:31.670 --> 02:34.170 we can see that every endeavor in radiology or in 02:34.170 --> 02:36.810 radiographic processing should fall into one of these 02:36.810 --> 02:37.660 categories. 02:37.880 --> 02:40.310 Certainly optimization of quality. 02:40.840 --> 02:42.520 We need consistent quality. 02:42.520 --> 02:45.410 And once we have established consistency, 02:45.420 --> 02:48.310 then we can optimize quality again. 02:48.310 --> 02:49.790 The more that we troubleshoot, 02:49.890 --> 02:50.510 that means, 02:50.510 --> 02:53.230 or that is an indicator of a failure of our 02:53.240 --> 02:54.400 maintenance program. 02:55.040 --> 02:55.580 Of course, 02:55.790 --> 02:58.180 if our quality is not consistent, 02:58.180 --> 03:01.060 that results in trouble and the trouble must be sorted 03:01.060 --> 03:01.450 out. 03:01.530 --> 03:02.750 So we have trouble shooting. 03:03.240 --> 03:05.690 But as you go along in your effort to optimize 03:05.690 --> 03:08.430 quality and because you will on occasion, 03:08.620 --> 03:11.070 no matter how good your maintenance system be involved in 03:11.070 --> 03:13.590 troubleshooting a problem and resolving it, 03:13.680 --> 03:16.530 keep in mind that we need to compensate on occasion, 03:16.670 --> 03:19.650 we may want to remove the 03:19.650 --> 03:20.150 problem. 03:20.150 --> 03:21.930 We maybe have to compensate for it. 03:21.940 --> 03:24.470 Adjust for it so that the problem is 03:24.470 --> 03:25.420 minimized, 03:25.510 --> 03:28.460 allowing us to better troubleshoot and thereby 03:28.470 --> 03:31.460 our very first step optimize quality 03:32.640 --> 03:34.220 to elaborate on these a little further, 03:34.220 --> 03:37.120 we can say that we can optimize quality through maintenance, 03:37.160 --> 03:38.270 maintenance programs, 03:38.570 --> 03:41.110 repair modification, 03:41.330 --> 03:42.460 modernization, 03:42.940 --> 03:44.780 cleaning up grading records, 03:44.790 --> 03:46.040 removing variables, 03:46.050 --> 03:48.660 controlling the variables and monitoring and 03:48.660 --> 03:51.550 experimentation during routine 03:51.550 --> 03:52.360 troubleshooting. 03:52.740 --> 03:54.790 Don't just eliminate the problem. 03:54.790 --> 03:55.880 Determine its cause. 03:55.880 --> 03:56.970 Try to learn from it. 03:56.970 --> 03:59.730 Let it teach you so that you learn more about your machinery 03:59.910 --> 04:01.870 and the way it works and the way it fails. 04:02.140 --> 04:04.220 Record the circumstances of its occurrence. 04:04.220 --> 04:05.200 Keep records, 04:05.470 --> 04:08.000 determine the best way to solve it and the best way to prevent a 04:08.010 --> 04:09.130 recurrence. 04:09.450 --> 04:10.020 Never, 04:10.300 --> 04:12.590 ever sweep it under the carpet as 04:12.590 --> 04:14.580 unimportant because as 04:14.590 --> 04:17.060 a problem, 04:17.070 --> 04:19.460 it will simply lay there under the carpet. 04:19.930 --> 04:22.610 And it will be a source that allow you to trip 04:22.610 --> 04:25.320 over in the future and in radiology 04:25.320 --> 04:27.580 because we are working with ionizing 04:27.580 --> 04:28.360 radiation. 04:28.370 --> 04:31.180 That means that if we have a a problem in the 04:31.180 --> 04:33.810 processor that necessitates a repeat of the 04:33.820 --> 04:34.950 patient's film. 04:35.030 --> 04:37.860 This doubles the exposure to the patient and this is 04:37.860 --> 04:38.450 not correct. 04:38.840 --> 04:41.700 So therefore we need to not sweep it under the carpet, 04:41.950 --> 04:42.470 take it out, 04:42.470 --> 04:43.110 examine it, 04:43.120 --> 04:44.250 try to learn from it, 04:44.350 --> 04:45.860 and eventually maybe, 04:46.340 --> 04:46.900 uh, 04:46.910 --> 04:49.800 the second or third time that it happens may require this. 04:49.850 --> 04:52.540 We eventually will learn how to remove the problem 04:52.680 --> 04:55.520 and thereby achieve a better level of quality than what 04:55.530 --> 04:56.560 we had in the past. 04:58.340 --> 05:01.280 Some problems will be outside the control of processing 05:01.290 --> 05:04.140 outside of the capabilities of electromechanical 05:04.140 --> 05:05.960 systems built into your processor, 05:06.440 --> 05:09.300 and thus we must compensate for the deficiency to 05:09.300 --> 05:12.200 maintain quality and minimize further problems. 05:14.040 --> 05:16.560 There are several types of programs to be considered. 05:16.830 --> 05:18.780 The first is predictive maintenance. 05:19.240 --> 05:21.040 Now most of you know about preventive maintenance, 05:21.040 --> 05:23.230 but we'll start with predictive maintenance. 05:23.270 --> 05:26.090 Predictive maintenance says that you know enough 05:26.100 --> 05:27.150 about your process, 05:27.150 --> 05:29.050 er that you can predict failure. 05:29.740 --> 05:31.590 You allow things to wear. 05:31.590 --> 05:33.310 You allow things to deteriorate. 05:33.510 --> 05:36.400 Chain on the main drive motor may 05:36.400 --> 05:39.200 wear the sprocket because the chain is case hardened and the 05:39.200 --> 05:39.970 sprocket is not. 05:39.970 --> 05:41.730 And this is true of almost all processors. 05:41.740 --> 05:43.950 So therefore we allow this 05:43.960 --> 05:46.550 chain to wear away. 05:46.690 --> 05:49.620 But on occasion we will inspect to see if the chain is 05:49.620 --> 05:50.440 misaligned, 05:50.440 --> 05:53.410 if it needs lubrication or if something is 05:53.410 --> 05:54.850 causing excessive wear. 05:55.440 --> 05:58.260 But because indeed there is normal wear 05:58.740 --> 06:01.020 this where we'll continue and we can monitor it. 06:01.030 --> 06:02.200 We can keep records of it. 06:02.210 --> 06:05.180 We can observe the function of the 06:05.180 --> 06:07.900 chain and it's driving of these 06:07.900 --> 06:10.810 sprockets and eventually we will get to a 06:10.810 --> 06:12.150 point where we say Okay, 06:12.640 --> 06:15.630 it looks like the sprocket will no longer hold up, 06:15.630 --> 06:18.430 that it will eventually deteriorate completely and at this 06:18.430 --> 06:20.300 point we predict failure. 06:20.320 --> 06:23.260 So therefore we prevent failure and this leads us 06:23.260 --> 06:24.690 into preventive maintenance. 06:24.700 --> 06:27.440 So first we must predict failure. 06:27.440 --> 06:29.090 We predict wear and tear. 06:29.090 --> 06:31.950 We predict how the system will function and how it 06:31.950 --> 06:33.600 will age or deteriorate. 06:34.040 --> 06:34.480 Next, 06:34.480 --> 06:37.240 we establish a method of preventing that 06:37.240 --> 06:39.480 failure by ordering supplies, 06:39.480 --> 06:41.900 keeping records and instituting or 06:41.900 --> 06:44.470 installing the new product or the new 06:44.470 --> 06:47.140 procedure before the old one fails. 06:47.150 --> 06:49.620 So that's how we really get to preventive 06:49.620 --> 06:50.190 maintenance. 06:50.310 --> 06:51.500 Preventive maintenance, 06:51.500 --> 06:53.150 as such normally says, 06:53.150 --> 06:54.650 you just simply prevent failure, 06:54.840 --> 06:57.670 but that can be very consuming of both time and 06:57.670 --> 06:58.180 money. 06:58.260 --> 07:00.870 If we do nothing but run around putting in new 07:00.880 --> 07:02.960 components whether or not the machine needs it. 07:03.340 --> 07:06.200 So it's better to practice predictive maintenance and 07:06.200 --> 07:09.080 allow that to educate you in the peculiarities of 07:09.080 --> 07:12.040 your own processor and lead you into a useful 07:12.140 --> 07:13.750 preventive maintenance program. 07:14.240 --> 07:16.990 Either Program one or the other or 07:17.000 --> 07:19.920 both together can be scheduled or non 07:19.920 --> 07:20.450 scheduled. 07:20.920 --> 07:23.630 The schedule says that he will go in 07:23.640 --> 07:24.300 once a week. 07:24.300 --> 07:25.320 You'll make an inspection. 07:25.320 --> 07:26.110 You may clean. 07:26.110 --> 07:27.960 You may replace a certain component. 07:28.400 --> 07:31.100 The non schedule can be used with a scheduled 07:31.110 --> 07:32.360 or by itself. 07:32.630 --> 07:35.630 This just simply says on an arbitrary basis in 07:35.630 --> 07:36.840 a non scheduled way. 07:36.990 --> 07:39.260 We will investigate what the processor is doing, 07:39.740 --> 07:40.970 You might say. 07:40.970 --> 07:41.470 Okay, 07:41.480 --> 07:44.140 every Friday afternoon is when I have free 07:44.140 --> 07:45.740 time that I can work on the process, 07:45.740 --> 07:45.950 er. 07:46.340 --> 07:48.680 But on a Wednesday or on a Monday or Saturday, 07:48.720 --> 07:49.210 I will, 07:49.220 --> 07:51.670 on an unscheduled a non scheduled basis, 07:51.680 --> 07:54.150 inspect the machine to see if I can't learn a little bit 07:54.150 --> 07:56.420 more about the process. 07:56.420 --> 07:56.640 Er, 07:56.650 --> 07:58.960 in this unscheduled way, 08:00.040 --> 08:02.980 perhaps the best kind of program is a tailor 08:02.980 --> 08:03.850 made program. 08:04.540 --> 08:07.460 This really sounds a 08:08.440 --> 08:11.290 peculiar because what I am suggesting is 08:11.290 --> 08:13.920 that you look in your manuals. 08:13.920 --> 08:16.340 You consider the recommendations of the 08:16.340 --> 08:18.030 manufacturer of your equipment, 08:18.130 --> 08:20.740 the recommendations of salesmen and your 08:20.750 --> 08:22.050 instructors and so forth. 08:22.440 --> 08:24.880 But then you sit down and you take your 08:24.880 --> 08:27.340 processor in your department and you 08:27.340 --> 08:27.910 consider, 08:28.090 --> 08:28.270 well, 08:28.270 --> 08:29.870 how am I using this machine? 08:29.880 --> 08:32.170 Are we putting through 300 films per 08:32.170 --> 08:34.460 hour every hour of the day? 08:34.840 --> 08:36.430 Does it run 24 hours, 08:36.440 --> 08:38.410 or does it run only eight hours? 08:38.840 --> 08:41.780 Do you only put through 300 films per hour 08:41.950 --> 08:43.760 in the first or second hour of the day? 08:44.230 --> 08:45.960 Exactly how do you use the machine? 08:46.340 --> 08:49.250 Does the machine get 1000 films a day 08:49.640 --> 08:50.560 For only 300? 08:51.140 --> 08:54.110 So you have to analyze the way the machinery is used 08:54.300 --> 08:56.520 and then develop a program from all of this. 08:56.520 --> 08:57.760 Other outside information, 08:58.340 --> 09:01.020 a program that will help you maintain your equipment. 09:01.320 --> 09:03.500 Best to give you the best 09:03.600 --> 09:06.120 electromechanical efficiency I think you 09:06.120 --> 09:08.750 all have experienced at one time or another. 09:08.750 --> 09:10.730 Or you can discuss this with your supervisors, 09:10.920 --> 09:13.920 the problems that occur with processors that are located in surgery 09:13.920 --> 09:16.560 or outpatient clinics where there may be less 09:16.610 --> 09:19.350 usage than occurs in main diagnostic, 09:20.040 --> 09:22.850 the machine that is isolated in surgery, 09:22.850 --> 09:23.520 for instance, 09:23.770 --> 09:25.970 is usually less well maintained, 09:26.160 --> 09:29.110 and it has a very low volume of film put through 09:29.110 --> 09:29.250 it. 09:29.640 --> 09:32.350 And yet an identical machine to this one can be 09:32.350 --> 09:35.240 placed in main diagnostic and have perhaps only 09:35.250 --> 09:38.170 1/10 of the problems and far 09:38.170 --> 09:40.560 less inconsistencies sensitive metric Lee. 09:41.040 --> 09:42.370 So this, 09:42.380 --> 09:44.150 then is a practical example, 09:44.150 --> 09:46.740 and the way that we would tailor make our maintenance program. 09:46.900 --> 09:49.520 We certainly need the same degree of quality 09:49.800 --> 09:52.450 in a machine that's used in a special situation, 09:52.450 --> 09:54.460 such as in surgery as we do. 09:54.460 --> 09:56.810 For the multitude of films that come out of main 09:56.810 --> 09:59.430 diagnostic quality is quality. 09:59.440 --> 10:00.700 We cannot make an exception. 10:00.760 --> 10:02.450 So to ensure the quality, 10:02.450 --> 10:05.180 we adapt our maintenance program to this 10:05.190 --> 10:07.160 to this consideration. 10:10.840 --> 10:12.130 To help you do this, 10:12.140 --> 10:14.910 you want to consider establishing process of records. 10:15.050 --> 10:15.700 First of all, 10:15.700 --> 10:17.470 you might have a record file, 10:17.480 --> 10:20.380 or you may have a book for every processor in 10:20.380 --> 10:22.880 which people write down people. 10:22.890 --> 10:24.520 Your own maintenance staff. 10:24.520 --> 10:26.840 You're supervisors, 10:26.840 --> 10:27.990 equipment personnel, 10:28.000 --> 10:30.720 chief technologist processing 10:30.720 --> 10:32.240 technologists or darkened personnel. 10:32.240 --> 10:35.230 Anybody who might work on the process er have a jam 10:36.840 --> 10:39.770 in some way alter processing 10:39.770 --> 10:42.390 conditions or do something to the 10:42.390 --> 10:42.860 process. 10:42.860 --> 10:44.160 Er they should write it down, 10:44.540 --> 10:47.300 and then on a regular basis you can keep the records up to date. 10:47.600 --> 10:50.550 This is one way that you can find out how many parts you're putting into a 10:50.550 --> 10:51.340 processor, 10:51.370 --> 10:54.140 whether or not you need to perhaps modify your 10:54.140 --> 10:57.000 maintenance program or any 10:57.000 --> 10:58.600 kind of other information you may need, 10:58.600 --> 11:01.260 such as cost accounting for 11:01.270 --> 11:04.150 record systems in the efficiency of the department. 11:04.930 --> 11:06.870 Maintain an exact maintenance program. 11:06.870 --> 11:06.980 Well, 11:06.980 --> 11:09.360 this is really a part of this tailor made idea. 11:09.740 --> 11:12.430 If we establish process of records and we keep the records up 11:12.430 --> 11:13.030 today, 11:13.210 --> 11:14.400 the records will guide us. 11:14.400 --> 11:16.950 So tell us where we have been and will tell us 11:16.960 --> 11:19.460 also ways that we go in the future. 11:19.940 --> 11:22.920 One way that we can establish an exact maintenance program, 11:22.930 --> 11:23.550 uh, 11:23.560 --> 11:23.860 tailor, 11:23.860 --> 11:26.800 make it to the needs of our department to our machinery. 11:26.800 --> 11:29.720 So we get the best efficiency and the best dollar value 11:29.720 --> 11:32.660 out of the processor and efficiency in the entire 11:32.660 --> 11:35.570 department would be to come up with some 11:35.570 --> 11:38.020 sort of conditions cleaning 11:38.020 --> 11:38.760 rollers, 11:39.140 --> 11:41.770 training chemistry and cleaning out the tanks wiping down the 11:41.770 --> 11:44.600 outside a set of conditions that seem reasonable 11:44.810 --> 11:47.720 to you and your department with your own problems. 11:48.070 --> 11:48.530 Next, 11:48.540 --> 11:51.290 you establish a list or discuss with the 11:51.290 --> 11:52.040 supervisor, 11:52.330 --> 11:55.010 and then you maintain the machine very exactly for a month or 11:55.010 --> 11:55.360 two. 11:55.740 --> 11:56.850 At the end of this period, 11:56.850 --> 11:59.850 you sit down and analyze what you have done some things 11:59.850 --> 12:02.810 you very easily and obviously recognize as 12:02.820 --> 12:03.470 having been done. 12:03.470 --> 12:06.230 Too much of other conditions will 12:06.230 --> 12:06.540 say, 12:06.550 --> 12:06.750 Well, 12:06.750 --> 12:09.730 I didn't do enough of cleaning or adjustments 12:09.740 --> 12:10.500 in this one case. 12:10.500 --> 12:12.350 While I will add this to my next program, 12:13.040 --> 12:15.060 and after six months or a year, 12:15.060 --> 12:18.020 you will come up with a very specific program that will be 12:18.030 --> 12:20.560 extremely useful and well worth the effort. 12:21.140 --> 12:23.900 If you do not choose this exact maintenance type of 12:23.900 --> 12:24.570 program, 12:24.570 --> 12:27.290 the only other alternative would be to sort of hop 12:27.290 --> 12:28.210 Scotch around, 12:28.220 --> 12:30.110 hoping that you don't miss too much. 12:30.120 --> 12:30.390 And that, 12:30.390 --> 12:30.760 of course, 12:30.760 --> 12:32.870 would lead to electromechanical 12:32.870 --> 12:35.460 inconsistencies and inconsistencies in 12:35.820 --> 12:38.150 the sense of geometry of the processor. 12:40.640 --> 12:41.470 Here is a chart. 12:41.480 --> 12:42.160 For instance, 12:42.910 --> 12:44.460 when cleaning and lubrication, 12:44.470 --> 12:45.780 we can read it two ways. 12:46.050 --> 12:48.560 Many people clean the crossovers once a day. 12:49.040 --> 12:51.060 You should sometime during the week, 12:51.070 --> 12:54.030 other than on this daily basis inspect to see if if 12:54.040 --> 12:56.150 perhaps the rollers are dirty, 12:56.190 --> 12:57.870 maybe at three o'clock in the afternoon, 12:58.010 --> 13:00.670 more so than they are at eight o'clock in the morning 13:00.850 --> 13:01.820 or vice versa. 13:01.820 --> 13:03.860 Many people clean rollers at the end of the day. 13:04.240 --> 13:05.210 But how do you know? 13:05.350 --> 13:07.690 The rollers are not really dirtier in the morning, 13:07.690 --> 13:10.230 having sat inside a processor all night long, 13:10.520 --> 13:13.230 and the fumes have collected on the rollers and so forth. 13:13.240 --> 13:15.250 So you inspect and you make a decision, 13:15.390 --> 13:17.350 and you learn from the experience. 13:18.040 --> 13:19.990 Many people will clean the deep rollers, 13:20.310 --> 13:21.350 perhaps once a month, 13:21.360 --> 13:22.360 once every six months, 13:22.360 --> 13:24.160 so we can read this chart the other way. 13:24.540 --> 13:25.370 We can say Well, 13:25.370 --> 13:28.210 if you do it in an infrequent basis, 13:28.420 --> 13:31.130 then consider taking out the deep racks and rinsing them 13:31.130 --> 13:34.100 off to reduce the amount of debris to allow yourself to 13:34.100 --> 13:36.870 inspect these components and then put them back 13:36.870 --> 13:37.260 in. 13:37.640 --> 13:40.320 This will allow the deep rollers or the big 13:40.330 --> 13:43.190 rack assemblies to remain cleaner longer throughout the 13:43.190 --> 13:46.130 month and also at the end of the month or chemistry 13:46.130 --> 13:47.610 change on a six month basis. 13:47.630 --> 13:49.930 You'll find that the rack will be easier to clean, 13:49.930 --> 13:52.250 thereby saving you time in the long run. 13:52.640 --> 13:53.130 Of course, 13:53.130 --> 13:54.630 we don't need just complete, 13:54.640 --> 13:55.340 uh, 13:55.350 --> 13:57.560 completely clean systems. 13:57.590 --> 13:59.750 We need systems that have been inspected. 13:59.820 --> 14:02.310 We need to make sure that not only is it clean, 14:02.310 --> 14:03.560 but it functions correctly. 14:03.570 --> 14:06.270 So every time you clean or you work on a piece of 14:06.270 --> 14:06.690 equipment, 14:06.690 --> 14:08.330 be sure to inspect all the components. 14:08.330 --> 14:09.230 Not just that. 14:09.230 --> 14:10.660 What you're working with. 14:11.340 --> 14:11.830 Of course, 14:11.830 --> 14:12.650 as you clean, 14:12.650 --> 14:14.280 you will remove lubricants, 14:14.290 --> 14:16.810 lubricants and themselves with lots of guys and 14:16.810 --> 14:19.270 deeply so different periods of time 14:19.360 --> 14:21.880 required that we inspect lubrication 14:21.890 --> 14:24.320 points and we apply lubricants. 14:25.540 --> 14:28.500 Check your replenishment for accuracy of 14:28.500 --> 14:31.470 the pump and for reproducibility of the 14:31.470 --> 14:31.860 pump, 14:32.340 --> 14:34.890 the pump is affected by head pressure and different times. 14:34.890 --> 14:35.530 Throughout the week, 14:35.540 --> 14:38.540 we will have different quantities of chemistry in the 14:38.540 --> 14:41.290 replenishment tank that can affect replenishment rates. 14:41.320 --> 14:44.260 So check it frequently at least once a week. 14:44.840 --> 14:46.060 Check your hyper retention. 14:46.640 --> 14:49.150 This is the archival quality ability of the film. 14:49.160 --> 14:51.300 Check this once a week until you have it under control. 14:51.300 --> 14:53.370 Then you might do it once every six months, 14:54.340 --> 14:55.790 clean and replace filters. 14:56.170 --> 14:56.610 Well, 14:56.620 --> 14:58.360 this is anybody's guess. 14:58.370 --> 15:01.120 To explain that it means that this will depend on the 15:01.120 --> 15:02.860 conditions in your local hospital, 15:03.840 --> 15:05.910 so you start off on a monthly basis. 15:05.920 --> 15:07.550 You try one particular 15:08.740 --> 15:11.040 micron size filter, 15:11.040 --> 15:12.680 and then you adjust accordingly. 15:12.690 --> 15:14.190 Keeping very close records. 15:14.640 --> 15:17.540 Replace tubing about once a year in peace or in total 15:17.890 --> 15:18.200 tubing. 15:18.200 --> 15:21.190 Will only last about a year's objected to the kinds of 15:21.200 --> 15:23.260 chemistry and the temperatures that we work with, 15:23.270 --> 15:24.660 and they should be replaced. 15:25.240 --> 15:25.860 Of course, 15:26.640 --> 15:28.910 checking sense of geometry is a very useful thing. 15:28.910 --> 15:29.490 Also, 15:29.500 --> 15:32.370 this will aid you in your maintenance program as well as 15:32.370 --> 15:33.950 in maintaining a consistent, 15:33.950 --> 15:34.510 quality, 15:34.520 --> 15:35.760 sensitive metric Lee. 15:37.340 --> 15:40.010 We can check on a weekly basis or a monthly basis, 15:40.010 --> 15:41.060 or perhaps daily. 15:41.140 --> 15:43.820 Many people check before every special procedure exam, 15:43.970 --> 15:46.430 and those people who do check on a daily basis, 15:46.440 --> 15:47.540 uh, 15:47.550 --> 15:49.070 do so usually in the morning. 15:49.070 --> 15:51.930 The very first thing to ensure that the processor is in the 15:51.930 --> 15:54.900 best set of conditions ready to receive the patients 15:54.900 --> 15:55.850 films of the day. 15:56.440 --> 15:59.280 But is the first thing in the morning 15:59.290 --> 16:01.420 really the best time to check sense of geometry, 16:01.620 --> 16:04.580 or perhaps 10 o'clock in the morning is better or three 16:04.580 --> 16:07.190 o'clock in the afternoon is better or worse. 16:07.740 --> 16:08.170 this, 16:08.180 --> 16:10.910 you have to decide this is a part of your 16:11.200 --> 16:14.040 responsibility in developing an exact maintenance 16:14.040 --> 16:15.860 program for your processor. 16:16.440 --> 16:18.940 Keep in mind that in processing radiographic 16:18.940 --> 16:19.650 processing, 16:20.440 --> 16:22.800 the processing completes what the exposure started, 16:22.940 --> 16:25.910 which means we must do everything possible to allow 16:25.910 --> 16:28.580 processing to complement the exposure and not alter the 16:28.580 --> 16:29.160 exposure. 16:30.340 --> 16:33.060 And that radiography begins and ends in the dark room. 16:36.940 --> 16:38.960 A clean processor is more economical. 16:38.960 --> 16:40.410 It's conducive to good work habits. 16:40.410 --> 16:43.210 Safer s capable of producing better quality radiographs 16:43.210 --> 16:45.070 simply because it's a clean processor. 16:45.440 --> 16:46.700 It's less time consuming, 16:46.740 --> 16:48.470 It's easier to maintain and repair. 16:48.550 --> 16:51.540 And most people are similar 16:51.540 --> 16:54.290 in this particular regard in that when 16:54.290 --> 16:56.400 you work on the equipment, 16:56.410 --> 16:57.240 if it's clean, 16:57.250 --> 16:58.690 if it's well maintained, 16:58.700 --> 17:00.970 if it's easy to work on, 17:00.970 --> 17:02.530 if it's reasonably easy to work on, 17:02.540 --> 17:03.860 if you don't mind working on it, 17:04.340 --> 17:05.880 if it's a real mess, 17:06.250 --> 17:08.920 then this is going to affect your attitude and 17:08.930 --> 17:11.590 also the safety of yourself when you're working on the 17:11.590 --> 17:12.050 equipment. 17:13.240 --> 17:14.510 So we might consider, 17:14.520 --> 17:14.940 for instance, 17:14.940 --> 17:15.960 some things to do. 17:16.440 --> 17:17.180 Very simply, 17:17.180 --> 17:18.250 it works this way. 17:18.270 --> 17:19.640 You use your senses, 17:19.650 --> 17:21.450 you smell for burning insulation. 17:21.460 --> 17:22.550 You look for flames, 17:22.560 --> 17:24.680 you might also feel for thumping, 17:24.690 --> 17:25.410 uh, 17:25.420 --> 17:28.370 for grinding for misalignment or look 17:28.370 --> 17:29.170 for misalignment. 17:29.180 --> 17:32.180 Or listen for these thumping or grinding sounds. 17:32.540 --> 17:33.050 Uh, 17:33.060 --> 17:34.440 you might use a stethoscope, 17:34.440 --> 17:34.940 for instance, 17:34.940 --> 17:37.460 to inspect to see if a bearing is being torn 17:37.460 --> 17:40.270 apart because of lack of lubrication or misalignment. 17:40.940 --> 17:41.480 Uh, 17:41.490 --> 17:44.220 you use your senses and basically use common 17:44.220 --> 17:44.710 sense. 17:44.920 --> 17:47.790 This is a valuable piece of equipment that we must 17:47.790 --> 17:50.260 maintain some of the props that, 17:50.270 --> 17:50.780 uh, 17:50.790 --> 17:53.620 you may want to have handy insofar as cleaning your 17:53.620 --> 17:54.150 process. 17:54.150 --> 17:54.390 Er, 17:54.470 --> 17:56.550 we have sponges. 17:56.920 --> 17:58.040 Many people say, 17:58.050 --> 17:58.330 Well, 17:58.330 --> 18:01.020 a sponge can't be of to greater 18:01.020 --> 18:01.560 value, 18:02.040 --> 18:04.700 but In reality we find that almost all of the 18:04.700 --> 18:07.650 dirt in an automatic processor is gelatin. 18:07.960 --> 18:09.890 Gelatin abraded off from the film, 18:09.900 --> 18:11.460 and this gelatin will hold dirt. 18:11.580 --> 18:14.500 But the gelatin breaks down and relatively cool 18:14.500 --> 18:14.810 water, 18:14.810 --> 18:15.260 if you will. 18:15.260 --> 18:18.180 It's warm and perhaps 120°, so you don't 18:18.180 --> 18:19.600 need a lot of scrubbing. 18:20.020 --> 18:22.640 There are other devices that you can use 18:22.650 --> 18:23.560 tools. 18:23.740 --> 18:26.660 These are two different styles are 18:26.660 --> 18:27.130 used, 18:27.130 --> 18:29.300 as you can see of scotch bright pads. 18:29.550 --> 18:32.440 Scotch bright pads comes in some five different colors, 18:32.450 --> 18:34.570 which indicate different levels of abrasiveness. 18:35.210 --> 18:38.100 The pads themselves can literally sand 18:38.100 --> 18:38.850 down rollers. 18:38.850 --> 18:41.510 They can remove the rust off the bumper of your car if you wish, 18:41.660 --> 18:43.660 but you must be careful when you use them. 18:44.040 --> 18:46.170 These are not to lift off the dirt. 18:46.180 --> 18:49.030 They are to score the dirt to allow the water 18:49.290 --> 18:51.650 the warm water to lift the dirt off from the rollers. 18:51.710 --> 18:54.680 So you must always use these with a great deal of care so that you 18:54.680 --> 18:57.170 do not damage the various components. 18:57.740 --> 19:00.710 A much milder type of scouring pad 19:00.710 --> 19:01.920 would be adobe pad, 19:01.920 --> 19:04.760 which is readily available in the supermarket. 19:05.320 --> 19:07.980 There's the milder Paco pads 19:08.110 --> 19:08.540 again, 19:08.540 --> 19:10.160 a used one and a new one. 19:10.810 --> 19:13.600 These from the PICO Corporation are milder, 19:13.820 --> 19:16.670 and again we'll be very useful. 19:17.140 --> 19:19.560 And here's a combination sponge and 19:20.520 --> 19:21.620 scouring pad. 19:21.630 --> 19:24.320 It's commercially available from DuPont in your local 19:24.320 --> 19:25.060 supermarket, 19:25.440 --> 19:26.760 so there's a number of pads. 19:26.760 --> 19:29.720 But keep in mind that when you use these devices, 19:30.020 --> 19:32.640 they are to help you to do a better job of cleaning. 19:32.650 --> 19:35.090 They themselves do not do the cleaning. 19:35.280 --> 19:37.050 It's the warm water that does the cleaning. 19:38.440 --> 19:39.170 Okay, 19:39.740 --> 19:40.850 as we continue, 19:41.640 --> 19:43.620 we're going to look at some 19:43.680 --> 19:46.440 components and consider them 19:46.440 --> 19:48.270 insofar as lubrication. 19:51.340 --> 19:53.670 Keep in mind that if we have 19:54.040 --> 19:55.600 problems with lubrication, 19:55.610 --> 19:57.390 if we have something that fails, 19:57.480 --> 19:59.760 then we're going to affect the sense of geometry. 19:59.760 --> 20:02.150 Because the transport assembly won't be functioning quite 20:02.430 --> 20:03.820 at the same speed, 20:03.820 --> 20:06.320 it will have a tendency to slow down when it slows down. 20:06.450 --> 20:08.050 We increase development time 20:09.840 --> 20:11.340 types of lubricants heavy, 20:11.530 --> 20:12.950 such as heavy Greece's. 20:13.740 --> 20:16.490 We can also talk about such things as Vaseline. 20:16.690 --> 20:19.390 One thing that comes to mind in the category of heavy 20:19.400 --> 20:19.760 is, 20:19.800 --> 20:20.430 uh, 20:20.440 --> 20:21.370 Oesterle gelatin, 20:21.370 --> 20:23.070 which is very common around the hospital. 20:23.070 --> 20:26.020 This should not be used for any reason in an automatic 20:26.020 --> 20:26.550 processor, 20:26.550 --> 20:29.300 because sterile gelatin cake it'll get 20:29.300 --> 20:30.080 very hard. 20:30.080 --> 20:31.040 And when this occurs, 20:31.040 --> 20:31.420 of course, 20:31.420 --> 20:32.550 it's no longer a lubricant. 20:33.140 --> 20:35.720 Light lubricants such as three in 1 oil 20:35.730 --> 20:37.850 machine oil sewing machine oil. 20:38.240 --> 20:40.910 You might also be used except because it is 20:40.910 --> 20:41.330 light. 20:41.540 --> 20:44.210 It will migrate around inside the process, 20:44.210 --> 20:47.140 and you have a much greater chance of getting it into the chemistry 20:47.140 --> 20:48.050 and onto the film. 20:48.640 --> 20:51.170 Very light lubricant is glycerin, 20:51.170 --> 20:52.880 which has also come into a hospital, 20:53.090 --> 20:55.840 and this can be used with a 20:55.840 --> 20:58.560 small toothbrush or a small brush to coat 20:58.570 --> 21:00.460 those components that need to be 21:00.940 --> 21:01.770 lubricated. 21:02.340 --> 21:05.200 You might use the light oil in 21:05.210 --> 21:08.110 motors and in bearings out of solution, 21:08.110 --> 21:08.590 of course, 21:08.590 --> 21:09.480 of chemical solutions. 21:09.480 --> 21:12.020 Use the glycerin on the exposed 21:12.020 --> 21:12.620 gears 21:15.140 --> 21:16.460 in this particular process. 21:16.460 --> 21:16.710 Er, 21:17.140 --> 21:20.080 we can see that we have lubrication ports on the top 21:20.090 --> 21:22.840 and the bottom of our circulation pumps. 21:23.340 --> 21:24.660 There's a little hole right there. 21:24.660 --> 21:26.490 We put a drop and there's one on the bottom. 21:26.780 --> 21:29.560 And then there's an oil ports here and here, 21:29.560 --> 21:31.460 both ends of your main drive shaft. 21:31.940 --> 21:34.670 There's also these gears to be 21:34.670 --> 21:35.290 lubricated. 21:35.700 --> 21:38.360 These gears are not necessary to lubricate, 21:38.740 --> 21:40.570 but if you do lubricate them, 21:40.580 --> 21:43.460 you make it easier to remove dirt as the dirt 21:43.460 --> 21:44.260 builds up. 21:44.270 --> 21:47.070 This puts an increased load or friction on the system and can 21:47.070 --> 21:47.860 cause damage. 21:50.240 --> 21:52.460 Lubrication is affected by misalignment, 21:52.470 --> 21:54.950 abrasion and wear dirt build up, 21:55.340 --> 21:58.060 and the lubricant itself will be oxidized by heat, 21:58.310 --> 21:59.410 and when it oxidizes, 21:59.600 --> 22:02.140 it forms tar pitch asphalt. 22:02.210 --> 22:03.250 It is in effect, 22:03.260 --> 22:03.860 dirt. 22:06.540 --> 22:08.260 Here's an indication at this point, 22:08.270 --> 22:09.500 once his bearing is gone, 22:09.500 --> 22:12.130 this is in a dryer takeoff mechanism to drive the 22:12.130 --> 22:13.110 dryer assembly. 22:13.120 --> 22:14.780 Once it starts to wear like this, 22:14.820 --> 22:16.480 you can put all kinds of lubricant on, 22:16.480 --> 22:19.380 and you won't prevent further where it is already 22:19.380 --> 22:19.860 spent. 22:22.740 --> 22:24.360 Be sure that your components are level. 22:24.940 --> 22:25.780 If they're not level, 22:25.780 --> 22:28.750 then you will increase the strain on 22:28.750 --> 22:30.860 the bearings and on the drive components. 22:30.860 --> 22:33.360 And this will create heat and 22:33.370 --> 22:33.980 friction, 22:33.990 --> 22:36.970 which will tear up the lubricants as well as the rest of the 22:36.970 --> 22:37.630 components. 22:37.710 --> 22:39.510 Here we see oxidized developers, 22:39.510 --> 22:42.340 and probably one of the harshest things is that the oxidized developer 22:42.340 --> 22:44.900 hides those components in there. 22:45.020 --> 22:46.460 And we can't really see if, 22:46.470 --> 22:49.460 if it's wearing the chain is wearing properly on the sprocket 22:49.470 --> 22:49.930 teeth. 22:50.020 --> 22:51.790 We can only see a little indication. 22:52.180 --> 22:53.560 We can't see if this is broken, 22:54.340 --> 22:57.120 so it's best to keep off these old lubricants, 22:57.120 --> 23:00.060 so we can better see the condition 23:00.070 --> 23:00.850 of the component. 23:02.050 --> 23:04.670 These processors use a bronze bearing the bronze 23:04.670 --> 23:05.230 bearing, 23:05.230 --> 23:06.750 as such is porous, 23:06.750 --> 23:09.560 and the oil will migrate through it so that there is no 23:09.560 --> 23:11.960 need to drill a hole through that bearing in 23:12.440 --> 23:14.560 to facilitate lubrication 23:16.640 --> 23:17.270 alignment. 23:18.440 --> 23:19.450 Look to see. 23:19.510 --> 23:20.110 First of all, 23:20.110 --> 23:21.050 if it's clean enough, 23:21.440 --> 23:24.070 you'll see this look to see if the teeth of the 23:24.070 --> 23:26.970 sprocket are properly centered in the center of 23:26.970 --> 23:28.360 each of the links of the chain. 23:29.000 --> 23:30.860 This one appears to be slightly cocked, 23:31.240 --> 23:33.460 so you want to look at the alignment. 23:34.040 --> 23:36.630 And sometimes this has been best done when the 23:36.640 --> 23:37.760 unit is running. 23:38.140 --> 23:38.500 B, 23:38.510 --> 23:39.140 of course, 23:39.150 --> 23:41.880 very careful not to have any loose clothing or to be near 23:41.880 --> 23:44.820 enough that you might be injured by the turning 23:44.830 --> 23:46.170 chain and sprockets. 23:48.840 --> 23:51.710 Here's a simple kind of lubrication device. 23:51.830 --> 23:53.850 It's a disposable syringe, 23:53.900 --> 23:56.830 which you will allow you to put a drop of oil exactly where you 23:56.830 --> 23:57.270 want it. 23:57.740 --> 23:58.700 In this particular slide. 23:58.700 --> 24:01.320 We can also notice that here we have plastic 24:01.330 --> 24:04.330 nuts on the inter stainless steel drive shafts, 24:04.540 --> 24:06.940 and we have plastic face plates and, 24:06.950 --> 24:07.610 uh, 24:07.620 --> 24:08.920 fiberboard face plates, 24:09.020 --> 24:11.720 just similar materials that will heat and expand cooling 24:11.720 --> 24:12.960 contract at different rates, 24:13.120 --> 24:15.630 causing these components to get out of alignment. 24:15.630 --> 24:17.660 So you want to be aware of this and 24:18.240 --> 24:21.060 then just inspect them on occasion and make sure that they 24:21.060 --> 24:22.250 are tight here. 24:22.250 --> 24:24.770 We see that there's a build up of dirt on the 24:24.770 --> 24:26.020 chain and debris, 24:26.020 --> 24:27.460 and that should be cleaned off 24:30.540 --> 24:32.040 in the dryer drive mechanism. 24:32.040 --> 24:34.850 We have a bearing at each one of these 24:34.850 --> 24:37.560 locations requiring lubrication heavy lubricant 24:37.630 --> 24:39.670 on this right angle drive gear. 24:40.040 --> 24:42.230 The chain that you see here is very clean. 24:42.240 --> 24:44.020 That's the way your chain should be. 24:44.020 --> 24:44.560 Also, 24:45.140 --> 24:47.350 a light amount of lubricant should be applied, 24:47.350 --> 24:50.280 but also a short period of time removed 24:50.290 --> 24:53.250 and a new application made so it never gets dirtier than what you 24:53.250 --> 24:54.550 see there. 24:57.640 --> 24:58.230 Precautions. 24:58.230 --> 24:59.120 To keep in mind, 24:59.120 --> 25:01.660 you need to keep it out of the chemistry off your hands, 25:01.660 --> 25:03.650 because if it's on your hands and lubricants, 25:03.950 --> 25:05.350 you will touch the rollers, 25:05.840 --> 25:07.430 and then that will touch the film. 25:07.750 --> 25:08.840 And in any of these cases, 25:08.840 --> 25:11.590 if we get oil on the film's lubricants on the 25:11.590 --> 25:12.150 films, 25:12.360 --> 25:15.020 this will inhibit development use sparingly but 25:15.020 --> 25:16.860 continuously on schedule. 25:19.140 --> 25:19.670 Now, 25:19.680 --> 25:21.260 in discussing the processor, 25:21.260 --> 25:23.930 we can say that this is a dirty processor, 25:24.270 --> 25:27.020 and I show this only in case you're not sure of 25:27.110 --> 25:27.860 dirtiness. 25:28.340 --> 25:31.190 We can see that there's stains in each of the tanks that 25:31.200 --> 25:34.060 the splash route has been removed and we have chemicals splattered 25:34.060 --> 25:34.960 all around here. 25:35.700 --> 25:36.220 Incidentally, 25:36.220 --> 25:37.500 when the developer dries, 25:37.500 --> 25:40.330 it oxidizes brown very much the way 25:40.340 --> 25:42.830 the lubricants will fixer when it 25:42.830 --> 25:45.460 oxidizes will oxidize to a white 25:47.540 --> 25:47.730 here. 25:47.730 --> 25:50.580 We want to make sure that when we clean this machine that we inspect the 25:50.580 --> 25:52.290 ports that you see here, 25:52.300 --> 25:55.080 make sure they're free of crystals and debris and 25:55.080 --> 25:58.080 pour hot water down each one of the 25:58.080 --> 25:59.960 drains to make sure that they're free. 26:01.440 --> 26:03.790 Clean up the spills and splatters. 26:03.960 --> 26:06.690 Don't allow this debris to go this 26:06.700 --> 26:09.090 far from the fumes of the fixer and 26:09.100 --> 26:12.050 splashes this sleeve on this particular 26:12.050 --> 26:15.040 Kodak processor is an external bearing and it 26:15.040 --> 26:15.880 should never turn. 26:15.890 --> 26:17.060 It should remain stationary, 26:17.070 --> 26:19.990 although here we can see some indications of turning here we 26:19.990 --> 26:21.920 can see a spring that is corroding. 26:21.930 --> 26:24.310 All of this is our indications of failure 26:27.940 --> 26:29.390 on this particular slide. 26:29.640 --> 26:32.630 The entrance to this assembly 26:32.690 --> 26:33.860 would be from this side. 26:34.130 --> 26:35.080 This is your entrance. 26:35.080 --> 26:36.550 Cross over into the developer. 26:36.940 --> 26:39.850 We can see stains on the fixed developer to fix 26:39.850 --> 26:41.040 crossover and on the fix, 26:41.040 --> 26:42.310 the wash they're both white. 26:42.310 --> 26:44.750 This indicates that these are fixer 26:44.750 --> 26:45.400 fumes. 26:45.680 --> 26:48.090 These crossovers and any processes should never be 26:48.090 --> 26:50.630 interchanged because then the fixer fumes 26:50.870 --> 26:52.180 and crystals on the roller. 26:52.180 --> 26:54.490 Once the film coming out of the developer hits, 26:54.490 --> 26:57.470 it will cause a dissolving of them and we'll end up 26:57.480 --> 26:59.300 with some stain and contamination. 26:59.690 --> 27:00.650 This particular roller, 27:00.650 --> 27:03.360 all the way over here that you see is black and 27:03.360 --> 27:06.300 appears to be coated with black rubber is actually 27:06.300 --> 27:08.480 coated with gelatin and silver. 27:08.590 --> 27:11.260 That is a roller that originally looked 27:11.260 --> 27:14.070 exactly like this one and certainly 27:14.190 --> 27:16.860 is in dirty state of a condition. 27:19.040 --> 27:21.560 Here is another rack that we can say is dirty. 27:21.940 --> 27:24.780 We can see the gelatin is so thick it's starting to pull 27:24.780 --> 27:27.320 off from the rollers and we'll play it back on the films. 27:27.740 --> 27:29.960 Here we see the splash spilled fixer. 27:30.440 --> 27:31.820 This problem didn't just occur. 27:31.820 --> 27:33.790 It's been running on for some time now, 27:34.090 --> 27:35.920 and this leads to other problems, 27:36.310 --> 27:38.730 and we also notice that the tubing is very black. 27:38.730 --> 27:40.110 Even the fixed line is black. 27:40.230 --> 27:42.830 It's long overdue for being changed. 27:42.890 --> 27:43.730 The tubing shrinks, 27:43.730 --> 27:46.370 gets very hard and can create blockages. 27:46.640 --> 27:49.460 This roller again is coated with gelatin and silver, 27:49.740 --> 27:50.780 and it's very sticky, 27:50.780 --> 27:52.880 as you can see by the lint on the 27:53.090 --> 27:56.030 film that lent it was the result of wiping 27:56.030 --> 27:58.440 this roller with a limp filled rag. 28:00.640 --> 28:03.570 Here we see a roller that has moved it slid and slid 28:03.570 --> 28:04.650 down the shaft. 28:04.650 --> 28:05.670 It should be right here. 28:06.340 --> 28:09.270 We can also see how the chemicals and the heat has oxidized 28:09.270 --> 28:10.570 this stainless steel shaft. 28:10.660 --> 28:13.380 We can see how the debris sitting in the little 28:13.380 --> 28:16.200 support blocks in the dryer assembly is scouring this in 28:16.200 --> 28:16.430 place, 28:16.440 --> 28:17.350 keeping it Chinese. 28:18.140 --> 28:20.160 This demarcation line here, 28:20.160 --> 28:22.500 where it's brown and then it's a lighter shade. 28:22.760 --> 28:25.400 This is because the drive belt only comes to this point. 28:25.400 --> 28:26.670 It does not cover the whole gear, 28:26.670 --> 28:29.620 so this is understanding how the equipment works and 28:29.620 --> 28:32.050 how it wears a bent 28:32.060 --> 28:34.710 rack covered with silver because of 28:34.720 --> 28:36.300 chemical contamination, 28:36.300 --> 28:38.340 most likely from the use of systems cleaner, 28:38.380 --> 28:41.350 which would cause an etching of silver and a deposit of silver in 28:41.350 --> 28:43.860 the developer rack and tank assembly. 28:44.340 --> 28:46.950 This is dirty inside of a pick somatic 28:46.950 --> 28:47.650 process er, 28:47.910 --> 28:50.700 a leak that has been running on for some time and has been 28:50.710 --> 28:51.450 ignored. 28:53.840 --> 28:56.820 Here we see the classical build up a fixer 28:56.840 --> 28:57.550 debris. 28:57.710 --> 28:58.170 The fixer, 28:58.170 --> 29:01.100 as such is aluminum soul fight and 29:01.100 --> 29:02.060 needs to be removed 29:04.040 --> 29:05.570 wearing way sprockets, 29:06.740 --> 29:07.830 and the story goes on, 29:07.830 --> 29:10.760 its endless of all the various problems that we can have. 29:11.140 --> 29:14.010 So we need to consider that this 29:14.020 --> 29:16.840 is a very important task these are due 29:16.840 --> 29:19.290 consideration so that the machine and the 29:19.290 --> 29:22.000 machinery is consistent to give us consistent 29:22.010 --> 29:23.170 radiographic quality. 29:48.840 --> 29:49.770 Oh, 29:58.840 --> 29:59.040 yeah.