6 - Maintenance
82
250 Hours Service - Wheel Bearings
Check for play in the wheel bearings:
1. Place stop wedges in front of and behind the left wheel and jack
up right wheel.
2. Rock the right 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 castle nut (C), until a slight resistance is felt in the wheel
rotation.
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 to keep it in place.
7. Fit the hub cap to the hub again.
8. Repeat the procedure for the left wheel.
250 Hours Service - Brake Adjustment (optional)
Lift the back of the sprayer from the ground. It is recommended to use
two lifting jacks, which are placed under the wheel axle. Make sure the
sprayer is stable and secured before carrying out any adjustments.
μ
ATTENTION! There are two versions of the hand brake system
available, one of the pictures should show your system at hand.
1. Loosen the 4 bolts at the brake connector (C) between the brake
arms. Also loosen the screw in each end of the brake connector
and the hand brake cable.
2. Adjust the nut (A) counterclockwise. Turn the nut 60° (1/6 turn) at a time - alternately on both left and right brake.
Continue the adjustment, until resistance occurs when rotating the hub/wheel.
3. Turn the nut 60° (1/6 turn) clockwise to loosen brake. Hub/wheel
should rotate freely now.
4. Tighten the brake connector (C) bolts again.
5. Tighten the hand brake cable again - See “250 Hours Service -
Brake Adjustment (optional)” on page 82.
±
WARNING! The adjustment must be carried out simultaneously
on both brakes. Therefore, adjust both left brake and right brake
alternately.
250 Hours Service - Hydraulic Brakes (optional)
Apply brakes to full pressure and inspect brake lines for damages or leaks. Replace damaged parts. If the hydraulic brake lines
have been dismantled, the hydraulic circuit must be vented afterwards:
1. Loosen the brake hose at both brake cylinders.
2. Apply the brake, until oil without air bubbles comes out.
3. Tighten the brake hose, before relieving the brake again.
±
WARNING! Always vent the circuit, if the hydraulic brake lines have been dismantled.
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