Hydragas system procedures and trim height adjustment (Suspension)

HYDRAGAS SYSTEM PROCEDURES AND TRIM HEIGHT ADJUSTMENT

Check - Trim height

1. Allow vehicle to stand in an unladen condition on a level surface.
2. Place steering in a straight ahead position.

CAUTION: Do not check or adjust suspension trim height immediately after a road test. Allow vehicle to stand for at least two hours to allow suspension fluid temperature to equalise with air temperature.

3. Bounce the vehicle at both ends a number of times and allow it to settle.
4. Roll vehicle forward 1 m to relieve suspension stresses.
5. Push down on front of vehicle and release, allow suspension to return unassisted. Do not apply handbrake.

6. Measure both front trim heights, hub centre to top centre of the front wheel arch: Front trim height = 368 ± 10 mm.

CAUTION: Fluid in the suspension system is under very high pressure. Any repair or adjustment can only be carried out using specialist equipment.

Adjust - Trim height

CAUTION: To minimise problems caused by contamination of the hydragas system, it is important that all equipment is maintained in a clean condition. Only clean filtered fluid must be used in filling/pressurising equipment.

Service tool 18G 703Q

1. Filler cap
2. Fluid level sight glass
3. Pressure gauge
4. Vacuum gauge
5. Control valves
6. Pump operating lever
7. Connector