9600 Service Manual - gmecorp-usa.com

Mechanical Assemblies 37
VERTICAL COLUMN CHAIN REPLACEMENT
WARNING... Verify that the Workstation keyswitch is in the OFF position.
Observe safety procedures when operating motorized mechanical
features.
Electrical circuits inside the equipment use voltages that are capable
of causing serious injury or death from electrical shock. Use
appropriate precautions.
Refer to Figure 16.
1. Remove the Vertical Column motor and horizontal chains (perform the
Vertical Column Motor Replacement procedure).
2. To remove the left chain perform the following procedure:
A. Remove the +24 VDC Power Supply.
B. Disconnect wiring harness's P1 and P8 from the Power/Motor Relay PCB.
C. Remove Torx screws (4 screws total) from all four corners of the Power
Panel mounting assembly to expose the left Vertical Column chain.
D. Loosen the chain tension screw until there is sufficient slack to loosen the 2
hex bolts that secure the upper chain coupling to the vertical column.
E. Remove the upper sprocket access plate by removing 2 horizontal
support pins secured with snap rings and the 4 outside hex bolts that
secure the plate to the casting.
F. Remove the master links from both ends of the chain and remove the chain.
3. To remove the right chain perform the following procedure:
A. Loosen the chain tension screw until there is sufficient slack to remove
the master links from both ends of the chain.
B. Remove the upper sprocket access plate by removing 2 horizontal
support pins secured with snap rings and the 4 outside hex bolts that
secure the plate to the casting.
C. Remove the master links from both ends of the chain and remove the chain.
4. When installing either chain perform the following:
A. Route the chain over the top and bottom sprockets and reattach the
chain to the chain coupling with the master links.
WARNING... Do not over tension either the vertical or horizontal chains.