MAINTENANCE/SERVICE
71
Center Boom Positioning
Front Location
The center boom is attached to both outer booms
and the height is automatically adjusted when the
in-cab controls are used to adjust the height of the
outer booms. It is important to have your front
boom adjusted to run at the same height from
the ground as the left and right booms.
The front boom is positioned, relative to the left and
right booms by mechanical adjustment during
assembly at the dealership.
To adjust the height of the center boom to match
the height of the outer booms:
1. Park the self-propelled windrower in a flat,
level area with the booms at the same height
in the FIELD position.
2. With a tape measure, measure the height of
the nozzle tip from the ground nearest the
main frame of the sprayer attachment.
3. Measure the height of the nozzle tips on the
center boom to the ground.
4. Remove the bolt fastening the chain to the
front center boom to each outer boom. Adjust
the length of the chain by securing the bolt at a
different link in the chain.
If there is no more chain and boom height
adjustment is still necessary, adjust the
positioning of the center boom forward or rearward.
5. Remove the bolts fastening the front center
boom support tubes.
6. Position the center boom forward or rearward
and align the holes of the support tubes.
7. Adjust the chain length so the center boom
height matches the height of the outer booms
and secure the bolts of the support tube.
Front center boom height adjustment.
