D350E and D400E Articulated Trucks Steering, Suspension, and Body Hoist Hydraulic Systems Caterpillar

Illustration 1	g00649991

The suspension accumulator is charged with nitrogen gas.

Precharge pressure at 21 °C (70 °F) ... 5400 kPa (783 psi)

Service pressure at 21 °C (70 °F) ... 10120 kPa (1468 psi)

A pressure change of 105 kPa (15 psi) occurs during each interval of 5 °C (41 °F).

Volume of the compartment for gas ... 6686 cc (408 in³)

(1) Torque on the valve ... 22 ± 2 N·m (16 ± 2 lb ft)

(2) Torque on the cap ... 10 ± 1 N·m (89 ± 9 lb in)

(3) Torque on the end caps ... 600 ± 75 N·m (443 ± 55 lb ft)

(4) Diameter of the piston ... 126.5 ± .05 mm (4.980 ± 0.002 inch)

(5) Bore in the cylinder tube ... 127.04 ± .09 mm (5.002 ± 0.004 inch)

(6) Fill the holes with clean grease in order to prevent water from entering.