Packer Fully Retracted Proximity Switch - Wittke STARLIGHT Maintenance Manual

48 Electrical System
4. Test the operation.
The proximity switch light should turn on when the target is detected; if not, repeat the adjustment
procedure.

Packer Fully Retracted Proximity Switch

This proximity switch (see Figure 5-8) locks out the Arms up function and activates a warning lamps
when the packer is not in the "home" position. It also stops the packer when it reaches its fully
retracted position. It is very important to adjust this proximity switch properly in order to avoid the
packer hitting the hopper at the end of its stroke.
Figure 5-8 Packer Fully Retracted proximity switch
Location
This proximity switch is mounted on the front wall of the body, on the street side.
This procedure must be performed by 2 people.
I :
MPORTANT
Testing procedure:
1.
Empty all refuse from the body.
2.
Initiate a pack cycle and observe the "home" position of the packer when the cycle completes.
3.
Adjust the Packer Fully Retracted proximity switch if:
• The packer stops before reaching the fully "home" position.
• The packer cylinders remain pressured up or abruptly bottom out at the "home" position.
Adjustment procedure:
1.
Move the packer about 1 inch back from the fully retracted position.
2.
Adjust the proximity switch so that it is active (the amber light on the proximity switch should be
ON) when the packer reaches this position. Ideally, there should be a gap of 3/16 inch (4.8 mm)
between the proximity switch and its target.
3.
Test the packer for a full cycle.
Ensure that there is no knocking noise at the end of the packer cylinder stroke.