General Maintenance 47
To adjust a proximity switch:
1. Loosen the proximity switch nuts.
2. Adjust the proximity switch so that there is a gap of approximately 3/16 of an inch (4.8 mm)
between the plate (target) and the switch.
3. Tighten up the nuts.
4. Test the operation.
The proximity switch light should turn on when the target is detected; if not, repeat the adjustment
procedure.
In the following sections, you will learn how to adjust limit/proximity switches based on the function
for which they are used.
Adjusting Packer Extend Proximity Switch
The Packer Extend proximity switch is adjusted at the factory for optimal packer operation. If the area
behind the packer is not properly cleaned daily, this proximity switch may no longer stop the packer
or may prevent automatic cycles from working properly.
Furthermore, over time, misalignment of the components may occur due to the frequent back and
forth motion of the packer. An adjustment might be necessary to prevent the packer cylinder from
completely extending and retracting to the end of its strokes.
The packer range of motion is controlled by a proximity switch and a limit switch. The proximity
switch stops the packer during extension (packer extend) and is located near the hopper floor, on the
curbside, just under the automated arm housing (see Figure 3-36). The limit switch stops the packer
during retraction (packer retract) and is located on the front right-hand side hopper corner, behind
the cab (see Figure 3-38).
Danger!
Always lock out and tag out the vehicle when inspecting it or performing maintenance on
it (see Locking Out and Tagging Out the Vehicle on page 20).
To Next Page
Loading...
Need help?
General
