TM 5-3610-286-20
Table 2-5. Organizational Troubleshooting (cont).
Malfunction
Test or inspection
Corrective action
20. IMPRESSIONS PER HOUR GAGE DOES NOT OPERATE (cont).
Step 2.
With printing press running at 2000 impressions per hour, using a multimeter set
to milliamps range (mA), check for 1.5 milliamps across terminals 2 and 3 of
impressions per hour meter (g3).
If reading is not 1.5 milliamps, go to step 3.
If reading is 1.5 milliamps, replace impressions per hour meter is faulty.
Refer to next higher maintenance.
Step 3.
Check wiring using schematic (figure FO-1).
Repair/replace wiring (figure FO-1).
21. VACUUM GAGE INDICATES LOW OR NO VACUUM.
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
Remove line from vacuum gage and start compressor; check for vacuum.
If no vacuum is present, go to step 2.
If vacuum is present, vacuum gage is faulty. Refer to next higher
maintenance.
Remove vacuum line from compressor and start compressor; check for vacuum.
If no vacuum is present, go to step 3.
If vacuum is present, replace vacuum line.
Check compressor for low oil level (oil lubricated compressor only).
Add oil (refer to LO 5-3610-286-10).
Check compressor for dirty filters.
Clean filters (TM 5-3610-286-10).
Recheck vacuum from compressor.
If vacuum remains low, or no vacuum, check compressor for binding or
dirt before replacing (para. 2-91).
22. AIR BLAST GAGE INDICATES LOW OR NO PRESSURE.
Step 1.
Check that filter cartridges on compressor are not clogged or defective.
Service or replace filter cartridges (TM 5-3610-286-10).
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