Start the engine and leave it to idle.
Turn the steering wheel in both directions from lock to lock and briefly hold. This creates the greatest pressure in the pipelines.
In this position, visually check the following items:
- piston valve.
- gear rack seal. At the same time, loosen the clamp and move the casing to the side.
- vane pump.
- pipeline connection points.
Servo-controlled vane pump, 4-cylinder engine
1 - tension lever
2 - cylindrical bolt, 20 Nm
3 - V-belt
Size for gasoline engine: 9.5x850mm; for diesel: 9.5x800 mm.
4 - bolt with clamping nut
5 - V-belt pulley
Install so that the symbol is visible "5-Z" on the front side. The pulleys of the crankshaft and the vane pump must lie in the same plane.
6 - bolt, 20 Nm
7 - bolt, 25 Nm
8 - washer
9 - cylindrical bolt, 20 Nm
10 - bracket
11 - front swing arm
12 - nut, 20 Nm
Self-locking, always replace
13 - nut, 20 Nm
14 - bolt, 20 Nm
15 - rear swing arm
16 - washer
17 - hex bolt
18 - washer
19 - hex bolt
20 - expansion hose
21 - O-ring Replace.
22 - hollow bolt, 50 Nm
23 - vane pump
24 - suction hose
25 - sealing ring
Replace.
26 - hollow bolt, 50 Nm
27 - bolt, 20 Nm
5 cylinder engine
Since the middle of 1990, in addition to the vane pumps of the company "ZF" pumps manufactured by "Vickers". Details and brackets to be confused with each other.
1 - hollow bolt, 45 Nm
2 - O-ring Replace.
3 - expansion hose
4 - self-locking nut, 20 Nm Replace.
5 - hex bolt
6 - bracket
7 - tension bolt
8 - V-belt Size: 12.5x992.
9 - V-belt pulley
Install so that the symbol is visible "5-Z" on the front side. The pulleys of the crankshaft and the vane pump must lie in the same plane.
10 - hex bolt, 20 Nm
Cylindrical bolt 25 Nm (Vickers).
11 - tension lever
12 - cylindrical bolt 25 Nm
13 - hollow bolt, 50 Nm
14 - sealing ring
Replace.
15 - suction hose
16 - hex bolt
17 - rear swing arm
18 - sealing ring
19 - sealing ring
Before installing on the suction side, fill with oil and turn the pump by hand until oil emerges from the pressure side.
20 - self-locking nut, 20 Nm
Replace.
21 - hex nut, 20 Nm
22 - front swing arm
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