902 and 906 Compact Wheel Loaders Hydraulic System Caterpillar

Illustration 1	g00446105

(1) Two 4Z-5848 Relief Valves

Pressure setting ... 20700 ± 350 kPa (3000 ± 50 psi)

Flow rate ... 68 L/min (18 US gpm)

Tighten the valve body to the following torque. ... 55 ± 6 N·m (41 ± 4 lb ft)

(2) 105-7716 Relief Valve

Pressure setting ... 23500 ± 350 kPa (3400 ± 50 psi)

Flow rate ... 68 L/min (18 US gpm)

Tighten the valve body to the following torque. ... 55 ± 6 N·m (41 ± 4 lb ft)

(3) Tighten the four 6V-8189 Nuts to the following torque. ... 19 ± 2 N·m (14 ± 1.5 lb ft)

(4) Tighten the two 3S-2713 Nuts to the following torque. ... 45 ± 6 N·m (33 ± 4 lb ft)

(5) 106-8528 Relief Valve

Pressure setting ... 26000 ± 350 kPa (3775 ± 50 psi)

Flow rate ... 19 L/min (5 US gpm)

Tighten the valve body to the following torque. ... 55 ± 6 N·m (41 ± 4 lb ft)

(6) Tighten the eight 1B-2714 Bolts to the following torque. ... 9.4 ± 1.4 N·m (7 ± 1 lb ft)

(7) Tighten the two 8F-6302 Bolts to the following torque. ... 9.4 ± 1.4 N·m (7 ± 1 lb ft)

(8) Tighten the two 8S-4711 Bolts to the following torque. ... 9.4 ± 1.4 N·m (7 ± 1 lb ft)

(9) 155-8787 Relief Valve

Pressure setting ... 15000 ± 350 kPa (2175 ± 50 psi)

Flow rate ... 19 L/min (5 US gpm)

Tighten the valve body to the following torque. ... 55 ± 6 N·m (41 ± 4 lb ft)

Illustration 2	g00477691

(10) 155-9926 Relief Valve

Pressure setting ... 27600 ± 2000 kPa (4000 ± 300 psi)

Flow rate ... 1 L/min (0.26 US gpm)

Tighten the valve body to the following torque. ... 55 ± 6 N·m (41 ± 4 lb ft) (A) Tighten the plug to the following torque. ... 24.5 ± 2.7 N·m (18 ± 2 lb ft)

Note: The 155-9926 Relief Valve is used to lower work tools when the engine has been off for a long period of time and the engine is not operable. Refer to Operation and Maintenance Manual, SEBU7415, "Equipment Lowering With Engine Stopped" for the procedure.