3-21. CHECKS AND ADJUSTMENTS AND FLOWMETER TESTS (CONT)
b. Main Relief Valve Pressure Setting Adjustment (SHEET 2 OF 4).
Connect pressure gage to quick disconnect coupling. Ensure that pressure
gage hose is long enough to read gage from operators seat.
If necessary, warm hydraulic oil to operating temperature:
(a) Start and operate engine at full throttle.
(b) Place BUCKET control lever (2) in CROWD position and hold for 15 se-
(c) Place BUCKET control lever (2) in NEUT. position for 30 seconds.
(d) Repeat steps (b) and (c) above until hydraulic oil is at operating tem-
Hydraulic oil is at or near operating temperature when tube (3) is warm
Lower bucket to ground and turn off engine.