Operation
Working with the Machine
78 78
9811-3400-4
Machine Adjustments
Introduction
The machines have a loader arms lift re-set proximity-
switch and can have an optional shovel re-set proximity-
switch.
The loader arms re-set proximity-switch releases the
control lever detent at a pre-determined angle when the
loader arms are being lifted.
The shovel re-set proximity-switch releases the control
lever detent when the shovel is at a pre-determined angle
when its being crowded.
The 456 HT has the option of forks (attached on-site) to
replace the shovel. With this option, two "shovel re-set"
proximity-switches are installed and an additional rocker
switch is installed in the cab. K
Right Console
Switches ( T 43).
Set the Loader Arms Proximity-Switch
1 Park the machine on hard, level ground. Refer to
Stopping and Parking the Machine.
2 Operate the control lever to lift the loader arms to the
required height. Refer to Operating Levers.
3 Loosen the nuts C and D.
4 Move the proximity-switch A to the required position
in-line with the loader arm B.
5 Tighten the nut C, then the nut D to lock the proximity-
switch in position.
6 Make sure that proximity-switch operates
automatically at the correct height. If necessary,
adjust the position of the proximity-switch again:
a Operate the control lever to lift the loader arms.
b Release the control lever when the loader arms
start to rise. The loader arms should stop at the
pre-set height.
Note: The detent position is only selectable when the
proximity-switch is out of range of the sensor bar.
297620-1
Fig 52.
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