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1. Observe all the above safety precautions and
loosen all the wheel nuts (1) one full turn.
2. Using a suitable jack under the relevant axle,
raise the machine until the tyre is clear of the
ground.
3. Support the chassis and axles of the machine
with suitable stands.
4. Remove all the wheel nuts from the wheel.
5. Using a crane and a suitable sling remove the
wheel from the axle.
6. Install the wheels by torquing the wheel nuts in a
diametrically opposite pattern to 650 N⋅m (480 ft
lb)
7. Re-check the torque after the machine has been
driven for 5 hours and then after every 50 hours
of operation.
Brake System
Bleed the Brake System
The brake system must be bled every time that any
maintenance or repair is performed on the brake
system which could cause air to enter the hydraulic
system.
The following procedure must be used to bleed the
brake system when brake bleeding equipment is not
available (in-field):
The machine must be in the service position. Refer
to
Pre-service Instructions, Chapter
102
1
F000775
1. Unscrew and remove the bolts (1) securing the
2. Remove the guards.
3. Ensure that the hydraulic fluid level is correct.
4. Ensure that the park/emergency brake is ap-
5. Start the engine and allow to idle during the
6. Attach a clear plastic pipe to the bleed nipple on
7. Direct the other end of the pipe into a 1 litre (0.25
8. Depress the brake pedal fully.
9. Open the bleed screw on the brake caliper ap-
10. When clean, air-free fluid flows from the bleed
11. Follow the bleeding procedure on each of the
12. Inspect the bleed screws on the brake calipers
13. Check the hydraulic fluid level and replenish if
7.
1
wheel guards
plied
bleeding procedure.
one of the brake calipers.
USGAL) container.
proximately one quarter turn.
nipple through the plastic tube, close the bleed
nipple.
brake calipers on all wheels.
for leaks
necessary.
f002037
870984-01
June 1, 1999
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