Wing Tilt Adjustment; Spring Arrangement (32-36 M Only); Wear Bushing Renewal On Boom Lift - Hardi COMMANDER TWIN FORCE Instruction Book

6 - Maintenance

Wing tilt adjustment

The horizontal adjustment of the wings is done by the retracted tilt
cylinder. The boom must be straight and horizontal. If necessary, adjust
the wing as follows:
1. Support the boom to relieve the load from the hydraulic cylinder.
2. Loosen counter nut (A), which is positioned by the hinge ring on
the cylinder's piston rod.
3. With a wrench (two flattened spots on end of the ram) adjust the
cylinder ram inwards or outwards to get the desired wing level.
4. Repeat steps for other side.

Spring arrangement (32-36 m only)

The adjustable spring arrangement on centre section straightens abrupt
boom movements. If different field conditions appears, the
arrangement may need adjustment.
The force of the straightening effect can be adjusted by tightness and
position of springs.
On the upper berth plate there are 3 positions for the springs:
Hole closest to centre (B)
Middle hole
Hole farthest away from centre (A)
To move position
1. Loosen the rigging screws.
2. Dismount upper bolt and move arrangement to the selected eye.
3. Refit bolt and tighten rigging screw. The rigging screw should be
tightened so much that there is no slope in it, but the spring
should not be stretched out either. Tighten so both springs have
same tightness when boom is lever.

Wear bushing renewal on boom lift

Inspect and replace the wear bushes before they are worn through.
1. Connect the trailer to a tractor and unfold the booms to working
position.
2. Lift the boom centre frame with a lifting device and support it until
the load is taken off the parallelogram arms.
3. Remove the screws (A), pull out the pins (B) at one of the upper
parallelogram arms and replace the wear bushes.
4. Refit the arm.
5. Repeat this on the other upper arm.
6. The lower arms must be disconnected simultaneously.
7. Grease all grease nipples.
8. Remove the lifting gear again.
100
Less straightening of boom.
Medium straightening of boom
Powerful straightening effect will be obtained.
B
A