TM
Page 32
December 2007
DC Electric Full-size RTs
Function Tests
Section 2 - Operation
Emergency Stop Button
Base/Platform
Switch
Raise/Lower
Switch
Test Platform Raise/Lower Switch
•
1. On base control console, select and hold
platform raise/lower switch to either “ ”
raise or “
” lower position.
Result: Platform raising and lowering
functions should operate.
Test Base Emergency Stop
•
1. Push in base “
” emergency stop
button and attempt to raise or lower the
platform.
Result: Platform raising and lowering
functions should not operate.
2. Pull out base “
” emergency stop
button.
Test Emergency Lowering
•
1. Raise the platform.
2. Locate holding valve manual override
knob at the base of each lift cylinder.
Depress and turn counterclockwise.
If necessary, use emergency lowering
access rod that is located on the base of
the aerial platform.
3. On hydraulic/electrical compartment, pull
out and hold emergency lowering valve to
fully lower the platform.
Result: The platform should lower.
4. To restore normal operation, depress and
turn holding valve manual override knobs
clockwise.
Holding Valve Manual
Overide Knob
Emergency Lowering
Valve
