Hardi NAVIGATOR FORCE, Instruction Book

Page: 81 / 118

6 - Maintenance
81
100 Hours Service - Check/Adjust Drawbar (Fixed High Drawbar only)
If too many movements occur sideways, the drawbar must be adjusted.
1.
Loosen counternuts (B).
2.
Regulate on the turnbuckles (A) on each side to adjust and center
the drawbar.
3.
Tighten counternuts (B).
250 Hours Service - Readjustment of the Boom
See section “Occasional Maintenance” on page 85.
250 Hours Service - Hydraulic Circuit
Check the hydraulic circuit for leaks and repair, if needed.
Refill nitrogen accumulators for:
•
ParaLift
•
Suspension (if fitted)
±
WARNING! Hoses for boom lifting device must be changed after every 5 years of use.
±
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.
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.