50 Hours Service - Wheel Nuts; 50 Hours Service - Tyre Pressure; 50 Hours Service - Air Brakes; 100 Hours Service - Check/Adjust Drawbar - Hardi NAVIGATOR VPZ Instruction Book

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6 - Maintenance

50 Hours Service - Wheel Nuts

Tighten wheel nuts as follows.
Mounting wheel hub to rim plate: Torque 490 Nm.
Tightening sequence for wheel nuts: See illustration and tighten in the
numbered order.
μ
ATTENTION! Some wheel models has 10 wheel bolts. Cross-
tighten in the same way!
μ
ATTENTION! When wheels has been mounted or retightened, the
plastic nut covers must be placed on the nuts afterwards.

50 Hours Service - Tyre Pressure

Check the tyre pressure according to the table in "Tyre Pressure" on
page 191.
DANGER! Never inflate tyres more than to the pressure specified
in the table. Over-inflated tyres can explode and cause severe
injuries!
±
WARNING! If renewing tyres, always use tyres with minimum load
index as specified. See "Tyre Pressure" on page 191.

50 Hours Service - Air Brakes

The air brakes are checked for leaks by the following procedure:
1. Connect the snap couplers to the tractor. Fill the trailer air tanks.
2. Check for leaks with brakes released, for example by spraying soapy water on the wheel.
3. Apply the brake up to full pressure.
4. Check for leaks with brakes applied.

100 Hours Service - Check/Adjust Drawbar

÷
NOTE! This adjustment is only valid for fixed drawbar.
If too many movements occur sideways, the drawbar must be adjusted.
1. Loosen counternuts (B).
2. Regulate on the turnbuckles (A) on each side to adjust and center
the drawbar.
3. Tighten counternuts (B).
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