6 - Maintenance
78
250 hours service - Wheel bearings
Check for play in the wheel bearings:
1. Place stop wedges in front of and behind LH wheel and jack up RH
wheel.
2. Rock the RH wheel to discover possible play in the bearings.
3. If any play, support the wheel axle to prevent the trailer from falling
down from the jack.
4. Remove hub cap (A) and cotter pin (B). Turn the wheel and tighten
the castellated nut (C) until a slight resistance in the wheel rotation
is felt.
5. Loosen the castellated nut until the first notch - horizontal or
vertical - is aligned with the cotter pin hole in the shaft.
6. Fit a new cotter pin and bend it.
7. Fit the hub cap to the hub again.
8. Repeat the procedure on LH wheel.
250 hours service - Inspect parking brake (optional)
Inspect the following:
The parking brake lever: If it can be pulled further backwards than 90°
(midway), using a traction of approximate 25 kg., the cable needs to be
adjusted.
The parking brake cable: When the parking brake is relieved, the cable
must be limp; otherwise it needs to be adjusted.
Correct length: When the brake is relieved the cable must be tight and
yet not stretched.
Lengthening/shortening of the parking brake cable is carried out by
adjusting the turnbuckle located inside the chassis.
Inspect the parking brake cables for possible wear or damages. Replace
worn or damaged parts.
250 hours service - Brake adjustment (optional)
Lift the back of the sprayer from the ground. It is recommended to use
two lifting jacks, placed underneath the axle. Make sure the sprayer is
stable and secured before carrying out any adjustments.
1. Loosen the 4 bolts at the brake connector between the brake
arms. Also loosen the screw in each end of the brake connector
and the handbrake cable.
2. Adjust the nut (A) counterclockwise. Turn the nut 60° (1/6 turn) at
a time - alternately on both LH and RH brake. Continue adjustment
till resistance occurs when rotating the hub/wheel.
3. Turn the nut 60° (1/6 turn) clockwise to loosen brake. Hub/wheel rotates freely now.
4. Tighten the brake connector bolts and screws again.
5. Tighten the handbrake cable again - See “250 hours service - Inspect parking brake (optional)” on page 78.
±
WARNING! The adjustment must be carried out simultaneously on both brakes. Therefore, alternately adjust on both
LH brake and RH brake.
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