SKYJACK, Page 31SJIII Compacts & Conventionals
February 2008
Function Tests Section 2 - Operation
2.9 Function Tests
Function tests are designed to discover any malfunctions
before aerial platform is put into service. The operator
must understand and follow step-by-step instructions
to test all aerial platform functions.
Never use a malfunctioning aerial
platform. If malfunctions are discovered,
aerial platform must be tagged and
placed out of service. Repairs to aerial
platform may only be made by a qualified
service technician.
After repairs are completed, operator must perform a
pre-operation inspection and a series of function tests
again before putting aerial platform into service.
Prior to performing function tests, be sure to read and
understand Section 2.10 - Start Operation.
2.9-1 Test Main Power Disconnect Switch
1. At rear of the base, turn main power disconnect
switch to off position.
Result: Aerial platform functions should not
operate.
2.9-2 Base Control Console
Ensure that you maintain three points
of contact when using the ladder to
mount/dismount platform.
1. Use the ladder of aerial platform to access
platform.
2. Close the gate.
3. On platform control console, pull out “
”
emergency stop button.
4. Select base/off/platform key switch to “
”
base position.
5. Use the ladder to dismount from platform.
6. Turn main power disconnect switch to on
position.
Conventional
(Back View)
Compact
(Back View)
Emergency Stop Button
Enable Button
Platform
Raise/Lower
Switch
Emergency Stop Button
Enable Button
Platform
Raise/Lower
Switch
Free-wheeling
Valve
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