Hardi NAVIGATOR 4000, Instruction Book

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6 - Maintenance
81
10 Hours Service - Spraying Circuit
Fill with clean water and operate all functions. Check for leaks using a higher spray pressure than normal. Check nozzle spray
patterns visually using clean water.
10 Hours Service - Brakes (optional)
Apply brake pedal and check function of trailer brakes.
50 Hours Service - Transmission Shaft
Check function and condition of the transmission shaft protection guard. Replace any damaged parts.
50 Hours Service - Wheel Nuts
Tighten wheel nuts as follows.
Torque wrench setting for mounting wheel hub to rim plate: 490 Nm.
Tightening sequence for wheel nuts: See illustration and tighten in the
numbered order.
μ
ATTENTION! When wheels has been mounted or re-tightened,
the plastic nut covers must be placed on the nuts afterwards.
50 Hours Service - Tyre Pressure
Check the tyre pressure according to the table in “Technical Specifications”.
€
DANGER! Never inflate tyres more than to the pressure specified in the table. Over-inflated tyres can explode and
cause severe injuries! See the section “Occasional Maintenance - Change of Tyres”.
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WARNING! If renewing tyres, always use tyres with minimum load index as specified.
250 Hours Service - Readjustment of the Boom
Please refer to Boom Manual
250 Hours Service - Hydraulic Circuit
Check the hydraulic circuit for leaks and repair, if needed.
Refill nitrogen accumulators for:
•
ParaLift
•
Suspension (if fitted)
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WARNING! Hoses for boom lifting device must be changed after every 5 years of use.
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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.