TM 5-3805-290-23-1
HYDRAULIC SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0017 00
PILOT SYSTEM PRESSURE TEST
0017 00
1.
Remove right chassis access covers (WP 0107 00).
2.
Connect pressure gage to hose. Connect other end of hose to test port (1) for steering pressure in pressure reducing valve
(2).
N OT E
Prior to testing pilot system pressure, make sure steering pump standby pressure is within specification.
Maximum steering pump standby pressure is 625 25 psi (4,300 170 kPa).
3.
Connect another pressure gage to another hose.
4.
Connect other end of hose to test port (3) for pilot
pressure.
5.
Start engine (TM 5-3805-290-10) and run engine at
high idle. With oil at normal operating temperature,
pressure reading must be 450 25 psi (3,100 170
kPa).
6.
If pressure reading is correct, stop engine and remove
test equipment from test port (3).
7.
If pressure reading is not correct, stop engine. Loosen
locknut (4) on relief valve (5). Turn stem of relief
valve clockwise to increase pressure or counterclock-
wise to decrease pressure. Repeat step 5 to retest pres-
sure.
8.
If pressure reading is now correct, stop engine (TM 5-
3805-290-10) and remove test equipment from test
port (1).
427-B0962