Adjustment Of 3-Way Valve; Retighten The Frame; Change Of Bulbs; Wear Bushing Renewal On Steering - Hardi NAVIGATOR 4000 Instruction Book

6 - Maintenance

Adjustment of 3-Way Valve

The large ball valve (type s93) can be adjusted, if it is too tight to
operate - or if it is too loose (=liquid leakage).
• Correct setting is when the valve can be operated smoothly by one
hand.
Use a suitable tool and adjust the toothed ring inside the valve as shown
on the drawing.
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ATTENTION! The small ball valves (type s67) cannot be adjusted.

Retighten the Frame

The frame are two sections bolted together. Also the drawbar is bolted to the frame. These bolts need to be tightened
correctly. Check regularly if bolts are tightened according to the specified torques below.
250 Nm

Change of Bulbs

1. Switch off the light.
2. Loosen the screws on the lamp and remove the cover or lens.
3. Remove the bulb.
4. Fit a new bulb, refit the cover and tighten the screws.
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ATTENTION! If halogen bulbs are used, never touch the bulb with your fingers. Natural moisture in the skin will cause
the bulb to burn out, when the light is switched on. Always use a clean cloth or tissue when handling halogen bulbs.

Wear Bushing Renewal on Steering

If too much play is found in the steering, the wear bushes must be replaced. This should be done at your local HARDI dealer.
88
250 Nm
180 Nm
180 Nm 250 Nm
180 Nm