TM 5-3810-305-23
0022
Table 1.
Preventive Maintenance Checks and Services (PMCS) - Continued.
ITEM TO BE
EQUIPMENT
ITEM
CHECKED OR
NOT READY/
NO.
INTERVAL
SERVICED
PROCEDURE
AVAILABLE IF:
M0851105
Figure 18.
Check Hydraulic Pressure Relief Valves.
18
Twelve-
Check Relief
Setting hydraulic pressure is an extremely intricate
Month
Valve
operation and should be performed only after satisfying
Check or
Adjustments
the following conditions:
Every 1,500
to 2,000
Hours of
Service
a. Warm hydraulic oil to operating temperature.
b. Be sure to operate at full governed engine speed
as relief valve setting will vary with flow rate.
c. Use a good quality 4,000 psi (27,580 kPa) gage
equipped with a short pressure hose and 1/4 inch female
quick disconnect. Be certain to calibrate pressure gage
used. Gage calibration can be lost if gage is subjected
to rapidly pulsating pressure for a few seconds. Gage
must have a proper snubber to read center of pump
pressure ripple or erroneous readings will result.
03/15/2011Rel(1.8)root(pmcswp)wpno(I00027)
