6 - Maintenance
134
Hydraulic Block for Yaw
÷
NOTE! For more details, see the section “Hydraulic Diagrams” on
page 157 in the “Technical Specifications” chapter in this book.
Wear Bushing Replacement on Boom Lift
Inspect and replace the wear bushings 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) at one of the
upper parallelogram arms and replace the wear bushes.
4. Replace the arm.
5. Repeat this procedure for the other upper arm.
6. The lower arms must be disconnected simultaneously.
7. Apply grease into all grease nipples.
8. Remove the lifting gear again.
Wear Bushing Replacement on Steering
If too much play is found in the steering, the wear bushings must be replaced.
This should be done at your local HARDI® dealer.
Replacement of Transmission Shaft Shield
• See the manufacturer’s instruction book.
Replacement of Transmission Shaft Cross Journals
• See the manufacturer’s instruction book.
Change of Light Bulb
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, replace the cover and tighten the screws.
ATTENTION! If halogen bulbs are used, never touch the bulb with your fingers. Natural moisture on 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.
Item Port on hydraulic block
Hydraulic hoses for accumulators ACC1, ACC2, ACC3
Test sockets for accumulators MACC1, MACC2, MACC3, TM
Yaw cylinders on spray boom C1, C2, C3
Return oil back to tractor T
A
B
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