Vertical Column Lift
Circuit/Mechanical Descriptions
The following paragraphs describe how the Vertical Column Lift, Vertical Column Power Supply PS3, Power/Motor Relay PCB,
Power/Signal Interface PCB, and Vertical Column Lift Buttons work together to move the Vertical Column up and down.
Vertical Column Lift
CAUTION: Be careful when you move the motorized Vertical Column. Even a low-speed collision can cause significant
personal injury or equipment damage.
The Vertical Column Lift raises and lowers the Cross Arm bearing assembly to position the C at a desired working height. The
Lift can raise the Cross Arm bearing assembly up to 18 inches (46 cm) above its normal transport height. An internal, reversing
24-volt DC motor damped by a gas shock mechanism extends and retracts the Lift.
The Vertical Column Lift also serves as a conduit for cabling that runs between generator circuitry and the Control Panels.
Although you can replace broken connectors in the field, broken cabling inside the Vertical Column Lift or a malfunctioning Lift
mechanism usually means the entire Vertical Column Lift assembly must be replaced. The Vertical Column Lift is not field
repairable.
The following illustration shows a partially constructed C-Arm on the manufacturing floor. Note that the Vertical Column Lift
assembly complete with cabling has been installed on the generator chassis.
2
Service
Periodic Maintenance
Contents
Schematics
Illustrated Parts
Installation
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