Hardi NAVIGATOR 3000, Руководство оператора, Страница: 97 / 122

6 - Maintenance
95
Re-tighten the frame
The frame is two sections bolted together. Also the drawbar is bolted to the frame. These bolts need to be tightened
correctly. Regularly check if bolts are tightened to the specified torques below.
Wear Bushing Replacement on Boom Lift
The wear bushings are inspected and replaced before they are worn
through.
1. Connect the trailer to a tractor and unfold the boom to working
position.
2. Lift the boom center frame with a lifting device and support it until
the load is taken off the parallelogram arms.
3. Remove the screws (A), and pull out the pins (B) for the upper
parallelogram arms and replace the wear bushings.
4. Re-attach the arms.
5. Repeat this procedure with the lower arms.
6. Apply grease into all grease nipples.
Suspension Rubber Dampers (optional)
If the shock absorbers lose their efficiency, they should be replaced.
1. Connect the sprayer to a tractor to prevent overbalancing.
2. Lift the rear end of the sprayer with e.g. a crane. Use lifting points as described in “Sprayer setup”.
3. Loosen the nut below the suspension rubber dampers.
4. Remove the suspension rubber dampers and replace with new ones.
5. Tighten the nut below the suspension rubber dampers.
6. Lower the rear of the sprayer again.