Opel Frontera UBS. Service manual — part 76
POWER STEERING 2A – 25
Seal Ring Setting
Note the setting direction. Always install a new part.
Apply a thin coat of power steering fluid to lip of each
part.
Dust Seal Setting
Note the setting direction. Always install a new part.
Apply a thin coat of power steering fluid to lip of each
part.
Gasket Setting
Note the setting direction. Always install a new part.
Apply a thin coat of power steering fluid to lip of each
part.
2A – 26 POWER STEERING
REASSEMBLY
13. Gear Box
12. O-ring
Apply a thin coat of grease.
11. Seal Ring
Apply a thin coat of grease.
10. O-ring
Apply a thin coat of grease.
9. Ball-nut and Valve Housing Assembly
1) It is strongly advisable to always keep the ball
screw and valve housing assembly in a horizontal
position (avoid holding it vertically), or the rack
piston will fall off onto the end of the worm,
causing the rack piston to slip out of the worm
shaft and ball to fall out.
2) Be careful not to drop the O-ring into the valve
housing.
3) Tighten the valve housing bolts to the specified
torque.
Valve Housing Bolt Torque
N·m (kg·m/lb·ft)
47 (4.8 / 35)
8. Sector Shaft
1)
Tape the sector shaft serrations to protect the
seal ring from damage.
2)
Align the center tooth of ball nut with that of the
sector shaft.
POWER STEERING 2A – 27
7. O-ring
6. Top Cover Assembly
Top Cover Bolt Torque
N·m (kg·m/lb·ft)
47 (4.8 / 35)
5. Lock Nut
Adjust the backlash between the worm gear and the
ball nut.
1) With the worm gear rotating, set it to the straight
ahead position.
2) Set the worm shaft preload to below 1N·m
(10kg·cm / 9 lb·in) with the sector shaft adjusting
screw.
3) Measure the worm shaft preload with the worm
gear turned 450° both to the right and to the left.
The worm gear preload in these positions should
be 0.4 - 0.6 N·m (4 - 6 kg·cm / 3.5 - 5.2 lb·in) lower
than in the straight ahead position.
4) Lock the sector shaft adjusting screw with the lock
nut.
Lock Nut Torque
N·m (kg·m/lb·ft)
41 (4.2 / 30)
4. Oil Seal
Installer: 5-8522-0026-0 (J-26508)
3. Back up Ring
Position the chamfered face (outer circumference)
towards the oil seal.
2. Retaining Ring
position the chamfered face (outer circumference)
toward the oil seal.
1. Dust Cover
2A – 28 POWER STEERING
POWER STEERING PUMP (6VD1, 6VE1 Engine Models)
2
3
22
1
16
15
12
11
5
6
8
7
9
4
17
18
27
25
26
24
19
20
23
21
14
13
10
Disassembly Steps
1.
Bolt
2.
Pipe, suction
3.
O-ring
4.
Connector
5.
O-ring
6.
Valve
7.
Retaining ring
8.
Filter
9.
Spring
10.
Pressure switch
11.
Retaining ring
12.
Shaft assembly
13.
Bearing
14.
Shaft
15.
Retaining ring
16.
Oil seal
17.
Bolt
18.
Rear housing assembly and pump
cartridge
19.
Gasket
20.
O-ring
21.
O-ring
22.
Front housing
23.
Pressure plate
24.
Rotor and vane
25.
Cam
26.
Pin
27.
Rear housing
Reassembly Steps
27.
Rear housing
26.
Pin
25.
Cam
24.
Rotor and vane
23.
Pressure plate
22.
Front housing
21.
O-ring
20.
O-ring
19.
Gasket
18.
Rear housing assembly and pump
cartridge
17.
Bolt
16.
Oil seal
15.
Retaining ring
14.
Shaft
13.
Bearing
12.
Shaft assembly
11.
Retaining ring
10.
Pressure switch
9.
Spring
8.
Filter
7.
Retaining ring
6.
Valve
5.
O-ring
4.
Connector
3.
O-ring
2.
Pipe, suction
1.
Bolt
412RW055
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