Vauxhall Workshop Service and Repair Manuals

Electro-hydraulic Supply Unit, Remove and Install(TRW):

Remove front axle body – see operation "Front Axle Body, Remove and Install" in group "E".

Detach pressure line (1) and return line (2) from electro-hydraulic supply unit. Fluid will escape – place collecting pan underneath.

Unclip steering wiring harness from front axle body and lay out of the way – note cable routing.

Detach fastening nuts (1) and (2) from steering gear and front axle body. Remove electro-hydraulic supply unit with bracket and steering wiring harness.

Remove fastening bolts (3) and remove electro-hydraulic supply unit from bracket.

Caution

The electro-hydraulic supply unit can only be replaced together with the steering wiring harness, disassembly is not anticipated. The steering wiring harness as of MY 2000 is fitted with a 3-pin (I) wiring harness plug (up to MY 2000: 2-pin design, II). When replacing the electro-hydraulic supply unit, a corresponding adapter can be obtained, if necessary, from "Aftersales".

Check damping bushings in bracket and replace if necessary.

  Install

Attach electro-hydraulic supply unit to bracket – tightening torque 7 Nm / 5 lbf. ft.

Position electro-hydraulic supply unit with bracket on steering gear and front axle body – note steering wiring harness.

Attach bracket for electro-hydraulic supply unit with fastening nuts (2) on front axle body – tightening torque 22 Nm / 16 lbf. ft. Attach bracket for electro-hydraulic supply unit to steering gear with fastening nut (1) – tightening torque 22 Nm / 16 lbf. ft.

Clip steering wiring harness onto front axle body – ensure correct cable routing.

Attach pressure line (2) with new seal ring to electro-hydraulic supply unit – tightening torque 30 Nm / 22 lbf. ft. Attach return line with new retaining strap and KM-J-22610 (1) to electro-hydraulic supply unit.

Unscrew fluid reservoir cover. Remove fluid screen from fluid reservoir and check for impurities, clean carefully if necessary. Insert fluid screen in fluid reservoir.

Fill fluid reservoir with special fluid to the "MAX" mark and close cover.

Install front axle body – see operation "Front Axle Body, Remove and Install" in group "E".

Charge and bleed hydraulic system – see operation "Hydraulic System, Charge and Bleed (EHPS Gen. I)".

Remove front axle body – see operation "Front Axle Body, Remove and Install" in group "E".

Detach pressure line (5) and return line (1) from electro-hydraulic supply unit. Fluid will escape – place collecting pan underneath. Unclip steering wiring harness (3) from front axle body and lay bare – note cable routing.

Detach fastening nuts (2) and (4) from steering gear and front axle body. Remove electro-hydraulic supply unit with bracket and steering wiring harness from front axle body.

Caution

The electro-hydraulic supply unit can only be replaced together with bracket and steering wiring harness, disassembly is not anticipated.

  Install

Position electro-hydraulic supply unit with bracket on steering gear and front axle body – note steering wiring harness.

Attach bracket for electro-hydraulic supply unit to front axle body with fastening nuts (1) – tightening torque 22 Nm / 16 lbf. ft. Attach bracket for electro-hydraulic supply unit with fastening nut (2) to steering gear – tightening torque 22 Nm / 16 lbf. ft.

Clip steering wiring harness onto front axle body – ensure correct cable routing.

Reattach pressure line with new seal ring to electro-hydraulic supply unit – tightening torque 27.5 Nm / 20.5 lbf. ft. Attach return line (4) to electro-hydraulic supply unit.

Unscrew cover (1) from fluid reservoir. Remove fluid screen with fluid dipstick (2) from fluid reservoir and check for impurities, cleaning carefully if necessary. Insert fluid screen with fluid dipstick in fluid reservoir.

Fill fluid reservoir with special fluid until fluid reaches mark (3). To prevent overfilling, remove fluid screen and dipstick and check repeatedly. When finished, screw on closure cap.