SAFARI

POWER STEERING

inserting the fit bolts and tightening the nuts. (Refer

to the technical data for the tightening torques).

4. Bring the steered wheels of the vehicle to the

straight ahead position. This positions is reached

when the steered wheels are flush or parallel to

the second pair of wheels (Place the measuring

bar on the front and rear wheel).

5. Slide the steering drop arm onto the sector shaft

(30), whereby the markings of the steering drop

arm and the segment shaft must coincide.Tighten

the hexagon nut (35) temporarily and turn the

steering clockwise until the wheel stop. Remove

the steering drop arm and establish whether there

is steering reserve in the steering unit by continuing

to turn the steering wheel. Repeat the

measurement in clockwise direction. Tighten the

hexagon nut (35) with torque given below and

secure with plate (36). Hook on and tighten the

drag link.

6. Secure the hydraulic pump on the mounting

bracket and adjust the necessary tension of the V

– belt. Thumb test.

7. Connect the pressure and return lines between the

pump, steering and working cylinders. If the lines

have to be bent then this must be carried out in a

cold condition so that the risk of combustion is

eliminated.

8. Commissioning the steering unit

In order to prevent dirt particles which still could

be in the oil line system, fromentering the pressure

limiting valve during first commissioning, we

recommend that the oil is allowed to flow through

the system for several minutes, with changing

engine speed and without turning the steering

wheel.The steering should then be turned several

times in both directions without completely

reaching the stops of the steering system at a

medium engine speed (until the operating

temperature is reached). Finally bleed the steering

unit (see section III).

X. Faults and remedies :

The ZF hydraulic ball nut steering system in short

form is designed to meet exacting requirements. The

unit is designed in such a way that no faults can occur

in the case of correct maintenance and normal

operation.

However, if a fault should occur the following

information should contribute to establishing and

rectifying the fault. Before the steering unit is checked

for the individual faults, the oil level must first be

checked with the engine running. The oil filling

procedure is described in section II. We would also

like to draw your attention to the fact that the use of

heavily foaming oil may lead to faults, since such oil

release air with great difficulty or not at all, once it

has entered the steering system.