10 Drive Bypass Valve; 11 Differential Lock Switch; 12 Turret Transportation Lock; 13 All Motion Alarm - Skyjack SJ85 AJ Operating Manual

Features and Devices

3.4-10 Drive bypass valve

This valve is located on the inboard side of the drive
pump and can be identified with a yellow paint mark
on it.
Figure 16 Drive bypass valve
7
Drive bypass valve with override stems - This
1
valve, when loosened 90 degrees clockwise,
is used to override drive relief valves so that
the MEWP can be loaded or unloaded from a
trailer using a winch line. Refer to
winching and towing procedure.
SJ85 AJ

3.4-11 Differential lock switch

This switch is located on the platform control console.
The differential locking system provides more traction
by providing equal drive to each wheel regardless of
terrain. Differential locks are used to prevent MEWP
from getting stuck when driving on loose, muddy, or
rocky terrain. Refer to
regarding testing differential lock switch.

3.4-12 Turret transportation lock

This locking device is located in the turret.
1
Section 6.3 for
7
1

3.4-13 All motion alarm

This alarm produces an audible sound when any
boom or drive function is activated. On MEWPs with
certain options, a flashing amber light will accompany
this alarm.
Section 4.3-25
1
Figure 17 Turret transportation lock
Turret transportation lock - This locking device
is used to lock turret in place during shipping
only. Refer to Section 6.5-2
to lock the turret.
Section 3 – Familiarization
for instructions
for procedure on how
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