TM 5-3805-291-23-1
STEERING SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0016 00
RELIEF VALVE (PUMP BACKUP) TEST AND ADJUSTMENT - CONTINUED
8.
Loosen locknut (13) on steering backup relief valve (14).
9.
Turn adjustment screw (15) counterclockwise by two full turns.
CAU T I ON
During the following procedure, do not keep steering pump at stall condition for more than ten seconds or
damage to components may occur. If necessary, release steering wheel and wait for 30 seconds before
repeating step.
N OT E
The pressure stops rising because the steering pump has reached a stall condition. This reduces the pump
output.
10.
With assistance, turn steering wheel against steering frame lock for ten seconds to obtain reliable pressure reading.
11.
Record pressure reading. Reading should be lower than 3,026 75 psi (20,865 515 kPa).
12.
Turn adjustment screw (15) slowly clockwise while observing test stand. Pressure should increase to 3,026 75 psi
(20,865 515 kPa). Pressure should stop rising at 3,026 75 psi (20,865 515 kPa).
13.
When stall pressure is reached, continue to turn adjustment screw (15) clockwise by one full turn.
14.
Tighten locknut (13) to 115 18 lb-in. (13 2 Nm).
15.
With assistance, lower bucket and any attachment to ground and stop engine (TM 5-3805-291-10).
16.
Stop engine (TM 5-3805-291-10).
17.
Relieve hydraulic system pressure (TM 5-3805-291-10).
18.
Remove test stand from pressure tap (1).
0016 00-9
