SJ46AJ SJ51AJ SJ63AJ
December 2007 Page 41
It is the responsibility of the operator to read, completely understand and follow all
instructions and warnings contained in this operating manual and on the MEWP.
FAMILIARIZATION
• Test Differential Lock Switch
WARNING
Before engaging differential lock,
ensure drive/steer controller is in
neutral position.
1. On platform control console, push
d i f f e r enti a l l o c k s w i t c h f o r w a r d
“ ” to the locked position and then
release.
Result: Differential light should turn on.
Differential lock should be engaged.
2. Pull differential lock switch backward
“ ” to the unlocked position and then
release.
Result: Differential light should turn off.
Differential lock will disengage when
drive torque is released. Refer to
Section 3 for operation.
• Test Oscillating Axles
WARNING
DO NOT operate any control on platform
control console without proper fall
protection secured to designated location
in platform. Failure to avoid this hazard
could result in death or serious injury!
1. Extend y boom 30 cm (12 in.) while on a
rm level ground.
Result: The steer axles should be locked.
2. Drive one of the steer tires up onto a 15 cm
(6 in.) block or curb.
Result: An appropriate tilt of the MEWP
chassis should occur.
3. Retract y boom while in tilt position.
Result: The steer axles should unlock and
the MEWP chassis should level itself to
ground.
Oscillating Axle - UnlockedOscillating Axle - Locked
Section 2 - Familiarization Function Tests
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