TM 10-8145-222-23
MAINTAINER MAINTENANCE
COMPRESSOR PRESSURE REGULATING VALVE
ADJUST
INITIAL SETUP:
Tools and Special Tools
References
Face Shield (WP 0097, Item 20)
TM 10-8415-222-10
Gloves, Rubber (WP 0097, Item 21)
Service Refrigeration Ordnance
Equipment Condition
Tool Kit (WP 0096, Table 2, Item 6)
Refrigeration Equipment
Refrigeration unit shut down (TM 10-8415-222-10)
Tool Kit (supplement) (WP 0096, Table 2, Item 7)
Top-middle panel removed (WP 0013)
Top-left panel removed (WP 0013)
Personnel Required
Utilities Equipment Repairer
ADJUST
Perform the following steps to adjust the compressor pressure regulating valve.
NOTE
The compressor pressure regulating valve is pre-set at the factory before it is
shipped. Adjustment of the valve, in normal circumstances, should not be required. If
a condition arises that would require adjustment of the pressure regulating valve,
perform the steps in this WP.
When performing an adjustment to the compressor pressure regulating valve, the
refrigeration unit must be running in the high heat or defrost mode to make sure that
suction pressure is above the proper compressor regulating valve setting.
1. Install manifold gauge set (WP 0014, Service).
WARNING
Rotating parts and drive belts are present in the refrigeration unit. Extreme care must
be taken when servicing the unit during operation to avoid personal injury. Make sure
gauge hoses do not interfere with maintenance operations.
Approved hearing protection must be worn when operating the MTRCS diesel
engine. Failure to observe this precaution may result in severe and permanent
hearing loss.
2. Start MTRCS and operate in high heat or defrost mode (TM 10-8415-222-10, Operating Procedures).
3. Remove cap (Figure 1, Item 1) from compressor pressure regulating valve.
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