Hardi COMMANDER DELTA FORCE, Instruction Book

Page: 153 / 218

6 - Maintenance
153
250 Hours Service - Hydraulic Circuit
Check the hydraulic circuit for leaks. Repair if needed.
Refill nitrogen accumulators for:
•
ParaLift suspension (if fitted)
•
Wheel axle suspension (if fitted)
•
Yaw suspension (if fitted)
±
WARNING! Nitrogen accumulators may contain oil under pressure.
250 Hours Service - Hoses and Tubes
Check all hoses and tubes for possible damage and proper attachment. Replace damaged hoses or tubes.
In general, a hose or tube should always be replaced, if
•
it is leaking
•
reinforcement material inside the hose is visible due to cracks in the outer layers.
250 Hours Service - Wheel Bearings
Check for play in the wheel bearings:
1.
Place chocks in front of and behind the left wheel and jack up the
right wheel.
2.
Support the trailer with axle stands or strong trestles.
3.
Rock the right wheel to discover possible play in the bearings.
4.
If any play, support the wheel axle to prevent the trailer from falling
down from the jack.
5.
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.
6.
Loosen the castellated nut until the first notch - horizontal or
vertical - is aligned with the cotter pin hole in the shaft.
7.
Fit a new cotter pin and bend it to keep it in place.
8.
Fit the hub cap to the hub again.
9.
Repeat the procedure for the left wheel.