JLG 80HX_HX+6 Operator Manual - Manual (Page 73)

SECTION 4 - MACHINE OPERATION
4-10 – JLG Lift – 3120890
4.13 STEER/TOW SELECTOR (IF EQUIPPED)
DO NOT ATTEMPT TO TOW MACHINE UNLESS EQUIPPED WITH
COMPLETE TOW PACKAGE FROM MANUFACTURER.
A push-pull type selector valve located adjacent to the
steer cylinder assembly and linkage regulates oil flow in
the steer circuit for steering and towing applications.
When steering the unit (self-propelled operation) the valve
knob is pushed IN. When towing the unit the valve knob is
pulled OUT to the float position.
4.14 TOWING (IF EQUIPPED)
RUNAWAY VEHICLE/MACHINE HAZARD. MACHINE HAS NO TOW-
ING BRAKES. TOWING VEHICLE MUST BE ABLE TO CONTROL
MACHINE AT ALL TIMES. ON-HIGHWAY TOWING NOT PERMIT-
TED. FAILURE TO FOLLOW INSTRUCTIONS COULD CAUSE SERI-
OUS INJURY OR DEATH.
MAXIMUM TOWING SPEED 8 K.M.H.
Prior to towing the machine, complete the
following:
DO NOT TOW MACHINE WITH ENGINE OPERATING OR DRIVE
HUBS ENGAGED.
1. Retract, lower and position boom over rear drive
wheels in line with direction of travel; lock turntable.
2. Connect towbar to front of frame with attach pins,
and towbar to towing vehicle.
3. Disconnect drive hubs by inverting disconnect cap.
(See Figure 4-2.)
4. Actuate steer/tow selector valve for towing; pull
valve knob OUT to float position. (This opens the
steer circuit to reservoir, allowing the steer cylinder
rod free travel.) The machine is now in the towing
mode.
After towing the machine, complete the
following:
1. Actuate steer/tow selector valve for steering; push
valve knob IN to the actuated position.
2. Reconnect drive hubs by inverting disconnect cap.
(See Figure 4-2.)
3. Disconnect towbar from steering hitch and from tow-
ing vehicle. The machine is now in the driving mode.
DISCONNECT
CAP
DISCONNECT
CAP
(REVERSED)
DRIVE
HUB
DRIVE
HUB
Drive Hub Engaged
Drive Hub Disconnected
Figure 4-3. Drive Disconnect Hub