Oshkosh JLG 520AJ, Operation And Safety Manual

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SECTION 5 - EMERGENCY PROCEDURES
5-2 – JLG Lift – 3121664
Platform or Boom Caught Overhead
If the platform or boom becomes jammed or snagged in over-
head structures or equipment, rescue platform occupants prior to
freeing the machine.
5.4 MANUAL SWING OVERRIDE
The manual swing override is used to manually swing the boom and
turntable assembly in the event of a total power failure when the
platform is positioned over a structure or obstacle. To operate the
manual swing override, proceed as follows:
1. Using a 7/8 inch socket and ratchet wrench, locate nut on
swing worm gear on left side of machine.
2. Install wrench on nut and ratchet in the direction desired.
5.5 EMERGENCY TOWING PROCEDURES
Towing this machine is prohibited. However, provisions for moving
the machine have been incorporated. The following procedures are
to be used ONLY for emergency movement to a suitable mainte-
nance area.
THE ALLOWABLE TOWING SPEED IS 1.9 MPH (3 KPH). THE MAXIMUM ALLOWABLE
TOWING DISTANCE IS 0.6 MILES (1 KM).
1. Chock wheels securely.
2. Engage the mechanical release on both drive hubs by loos-
ening, completely reversing, and tightening the two bolts on
each hub.
3. Connect suitable equipment, remove chocks, and move
machine.
After moving machine, complete the following procedure:
1. Position machine on a firm level surface.
2. Chock wheels securely.
3. Disengage the mechanical release on both drive hubs by
loosening, completely reversing, and tightening the two
bolts on each hub.
4. Remove chocks from wheels as desired.