Hours Service - Check/Adjust Drawbar (Fixed High Drawbar Only); 100 Hours Service - Retightening The Spray Boom; 250 Hours Service - Hydraulic Circuit; 250 Hours Service - Hoses And Tubes - Hardi NAVIGATOR DELTA FORCE Instruction Book

6 - Maintenance

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).

100 Hours Service - Retightening the Spray Boom

Due to several movements of the spray boom from driving in the field with an unfolded boom, you must retighten all bolted
connections on the boom centre and boom wings.
Where you find bolts with Nord-Lock washers, please tighten with the
following torques.
Bolt size Torque (Nm)
M10 50
M12 85
M14 136
M16 208
M18 291
M20 408
M22 557
M24 703
M27 1028
M30 1401

250 Hours Service - Hydraulic Circuit

Check the hydraulic circuit for leaks and repair, if needed.
Refill nitrogen accumulators for:
• ParaLift suspension (if fitted)
• Wheel axle suspension (if fitted)
• Yaw 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.
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