Packer Fully Retracted Proximity Switch - Wittke StarLight Maintenance Manual

42
P F
ACKER ULLY
S
WITCH
This proximity switch locks out the Arms up function and
activates a warning lamps when the packer is not in the "home"
position and 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.
Location:
This proximity switch is mounted on the front wall of the body, on
the street side.
T
HIS PROCEDURE MUST BE PERFORMED BY TWO PEOPLE
Testing procedure:
1. Empty all refuse from the body.
2. Initiate a Pack cycle and observe the "home" position of
the packer when the cycles completes. Adjust the Packer
fully retracted proximity switch if:
• The packer stops before reaching the fully "home"
position.
• The pack 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 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 3/8
inch 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.
R P
ETRACTED
IMPORTANT
ROXIMITY
.
Part #: 90309