69D and 769D Off-Highway Trucks and 771D Quarry Truck Steering System Caterpillar

Illustration 1	g00100782

Test information:

Temperature ... 49° ± 3°C (120° ± 5°F)

Flow rate ... 151 ± 10 L/min (39.9 ± 2.6 US gpm)

Relief valve pressure setting ... 17300 ± 300 kPa (2510 ± 45 psi)

Pressure at the outlet ... 70 ± 7 kPa (10 ± 1 psi)

(1) Torque for nut ... 50 ± 7 N·m (37 ± 5 lb ft)

(2) 4T-2741 Spring

Length under test force ... 58.7 mm (2.31 inch)

Test force ... 242 ± 19 N (54 ± 4 lb)

Free length after test ... 61 mm (2.4 inch)

Outside diameter ... 15.75 mm (0.620 inch)

(3) Use a small amount of the lubricant that is being sealed to lubricate the seal bore.

(4) Installation torque ... 65 ± 5 N·m (48 ± 4 lb ft)