988G Wheel Loader Power Train Caterpillar

Illustration 1	g00550193

Supply flow rate ... 69.5 ± 0.8 L/min (18.36 ± .21 US gpm)

Supply pressure ... 2620 ± 35 kPa (380 ± 5 psi)

Bypass pressure ... 1060 ± 100 kPa (155 ± 15 psi)

(1) 4M-2381 Spring

Length under test force ... 12.2 mm (.48 inch)

Test force ... 2.30 ± 0.18 N (.517 ± .041 lb)

Free length after test ... 22.6 mm (.89 inch)

Outside diameter ... 7.6 mm (.30 inch)

(2) 106-9212 Spring

Length under test force ... 62 mm (2.4 inch)

Test force ... 528 ± 26 N (119 ± 6 lb)

Free length after test ... 78.07 mm (3.074 inch)

Outside diameter ... 19 mm (.8 inch)

(3) 6P-4978 Spring

Length under test force ... 27.15 mm (1.069 inch)

Test force ... 67.3 ± 3.4 N (15.13 ± .76 lb)

Free length after test ... 38.1 mm (1.50 inch)

Outside diameter ... 24.61 mm (.969 inch)

(4) Torque for the nut ... 18 ± 4 N·m (13 ± 3 lb ft)