Skyjack SJ 4632 - Function Tests

SKYJACK, Page 26 SJIII Series
Section 1 - Scheduled MaintenanceFunction Tests
Conventional
(Back View)
Compact
(Back View)
Platform/Off/Base
Key Switch
Platform
Raise/Lower
Switch
Platform
Raise/Lower
Switch
Free-wheeling
Valve
Emergency Stop
Button
Emergency Stop
Button
Test Base Emergency Stop•
1. Push in “
” 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 Off/Platform/Base Switch•
WARNING
Be aware of overhead obstructions
or other possible hazards around the
aerial platform when lifting.
1. Select off/platform/base key switch
“ ” off position. Attempt to raise or lower
the platform.
Result: Platform raising and lowering
functions should not operate.
2. Select off/platform/base key switch to “
”
platform position. Attempt to raise or lower
the platform.
Result: Platform raising and lowering
functions should not operate.
3. Select and hold off/platform/base key
switch to “
” base position. Attempt
to raise or lower the platform.
Result: Platform raising and lowering
functions should operate.
Test Lower/Neutral/Raise Switch•
1. Select and hold off/platform/base key
switch to “
” base position and
“
” raise the platform with lower/neutral/
raise switch.
Result: Platform should rise.
2. Select and hold off/platform/base key
switch to “
” base position and
“
” lower the platform with lower/
neutral/raise switch.
Result: Platform should lower.