SJ85 AJ 213217AAA
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Function Tests Section 4 – Pre-operation
4.3 Function Tests
Function tests are designed to discover any
malfunctions before MEWP is put into service. The
operator must understand and follow step-by-step
instructions to test all MEWP functions.
WARNING
Never use a malfunctioning MEWP. If malfunctions
are discovered, MEWP must be tagged and taken
out of service. Repairs to MEWP may only be made
by qualied/competent repair personnel.
NOTE
To perform these function tests, ensure there is
sufficient space to fully raise and extend boom.
After repairs are completed, operator must perform a
pre-operation inspection and a series of function tests
again before putting MEWP into service.
Prior to performing function tests, be sure to read and
understand Section 5.1: Start Operation.
NOTE
All motion alarm should sound while operating
any boom or drive function.
4.3-1 Testing main power disconnect
switch
1. In engine compartment, turn main power
disconnect switch to off position.
▪
Result: MEWP functions should not operate.
2. In engine compartment, turn main power
disconnect switch to on position.
NOTE
Close all cowlings before proceeding to next
item.
4.3-2 Base control console
1. On platform control console, pull out
emergency stop button.
2. For dual fuel engine, select fuel supply by
moving fuel switch to either gasoline or liquid
propane gas position.
3. On base control console, pull out emergency
stop button.
4. Turn off/base/platform key switch to base
position.
5. Start engine by selecting start position from
start/function enable/emergency power switch.
4.3-3 Testing base emergency stop
button and base emergency stop
light
1. Push in emergency stop button and attempt to
operate any MEWP function.
▪
Result: Engine should shut down and MEWP
functions should not operate.
2. Pull out emergency stop button and restart
engine.
▪
Result: Emergency stop light should
continuously illuminate.
TM
HOUR METER
QUARTZ
Base control console
Start/function enable/
emergency power switch
Off/base/platform key
switch
Emergency stop
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