WHEEL BRAKE ADJUSTMENT.
When lining wear has reached the point where the pedal travel becomes excessive, it is necessary to adjust the brake shoes in closer relation to the drum. Proceed as follows:
Jack up each wheel in turn. On the back face of the brake anchor plate, will be found a hexagon adjustment bolt (A), which operates a snail cam bearing on the leading shoe. Only one of these is fitted to each wheel brake unit, thereby providing single-point adjustment. Spin the wheel and rotate the adjuster bolt until the brake shoe contacts the drum, then ease the adjuster until the wheel again rotates freely. Repeat for the other three wheels.
Fig. 21. Wheel brake adjustment.
TRANSMISSION BRAKE ADJUSTMENT.
Periodic adjustment of the
transmission brake unit will be required proceed as follows (see Fig.
22 Transmission brake adjustment.
A-Transmission brake adjuster.
B-Propeller shaft sleeve lubrication
C-Transfer box oil drain plug. nipple.
D-Petrol tank drain plug.
BLEEDING THE BRAKE SYSTEM.
WHEELS AND TYRES
Fig. 23. Dunlop 6.00-16 Trakgrip 128 tyre.
As alternative equipment, Dunlop
7.00-16 Trakgrip 125 pattern tyres are available, to obtain maximum wheel
grip and driving power when operating over soft mud, ploughland and all
unprepared surfaces. Although this "tractor" type tyre can be
used for short distances on the road, it is essentially an off the road
lyre and is not recommended for road work.
If maximum tyre life and performance are to be obtained, then careful attention must be given to the question of correct tyre pressures.
For NORMAL ROAD AND CROSS-COUNTRY
work, tyre pressures must be maintained at -
Should it be desired to traverse
EXCEPTIONALLY SOFT GROUND, the tyre pressures may be REDUCED to
These reduced pressures must only be employed when absolutely essential and the pressures MUST BE RETURNED TO NORMAL immediately after the soft ground has been negotiated.
Pressures should be checked weekly, using the pressure gauge included in the tool kit at the same time it is advisable to check the wheel nuts for tightness. In order to obtain accurate pressure readings, the check should be made when the tyres are cold, with the gauge held horizontally.
Any unusual pressure loss should be investigated after making sure that the valve is not at fault, the inner tube should be removed and subjected to a water test.
FITTING THE SPARE WHEEL.
CHANGING TYRE POSITIONS.
IMPACT TYRE FRACTURES.
Inner tube injuries up to 0.25 in. (7 mm.) can be repaired with patches more extensive damage needs a proper vulcanized repair.
FACTORS AFFECTING TYRE WEAR.
1. INCORRECT TYRE PRESSURES.
|Fig. 25. Well-base rim wheel.|
TYRE REMOVAL AND FITTING.
1. Thoroughly examine the cover
for nails, flints, etc., and ensure that no loose objects have been left
inside. Clean the wheel rim flanges and seatings. Always use the correct
size of inner tube, which should bear the same description as the outer
1. Remove the valve cap and
core to deflate the tyre and place them clear of dirt or grit.
Fig. 26. Divided wheel.
TYRE AND WHEEL
When refitting a tyre after
repair, the white spots on the cover bead should be positioned to coincide
with the black spots on the inner tube. Should it be desired to regain
the original fine degree of balance, your dealer will be able to balance
the wheel and tyre assembly.
DUNLOP TYRE SERVICE.