Adjusting The Extension Booms - Toro 41164 Operator's Manual

4. Release the knob allowing the hook to catch the boom
extension frame and secure it to the boom holder.
5. Repeat steps 1 through 4 with the right boom extension
and left boom holder.
Adjusting the Extension
Booms
The electric lift on each extension boom adjusts the boom
position. To ensure trouble-free operation, you must not
allow the extension boom structure to contact any other
portion of the boom structure during operation.
You must allow the actuator to travel its full stroke and be
stopped by its own internal limits.
When the boom is fully upright, ensure that the ball support
structure on the boom does not contact the center boom cut
out. There should be a gap equal to the thickness of a
12-gauge piece of steel (0.106 inch or 3 mm) between these
two components (Fig. 61).
1
Figure 61
1. 12-gauge steel shim
To ensure this gap, adjust the boom as follows:
1. Set the boom in the horizontal position.
2. Rotate the adjustment nut until it is as close to the clevis
as possible.
3. Snug the clevis into position by tightening the jam nut.
4. Engage the electric lift to raise the boom to the fully
upright position.
Note: The actuator must be fully extended at this point
(at the end of its travel, a clutch will disengage and you
will hear clicking if the power is held on to the
actuator).
5. Insert a strip of 12-gauge steel stock between the ball
support and the cutout on the center boom.
6. Loosen the jam nut and rotate the adjustment nut to
bring the ball support into contact with the 12-gauge
sheet stock shim and the cutout on the center boom.
7. Tighten the jam nut.
8. Remove the sheet stock shim.
9. Move the boom throughout its length of travel.
Note: Ensure that no part of the boom assembly
contacts any objects that may impede the boom travel.
Note: When you complete the adjustment, ensure that
the axis of the clevis pin is horizontal.
Note: The extension boom nozzles must be spaced 20
inches apart. Verify this spacing and adjust the nozzles if
necessary.
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