Emergency Operations; Towing A Disabled Vehicle Short Distances - JLG sky trak mmv Service Manual

2.14

EMERGENCY OPERATIONS

2.14.1 Towing a Disabled Vehicle Short
Distances
Towing a disabled vehicle should only be attempted as a
last resort, after exhausting all other options. Every effort
should be made to repair the vehicle and move it under its
own power. Towing the vehicle improperly can result in
damage to the vehicle drivetrain.
IMPORTANT! In the event the vehicle is disabled and
cannot be moved under engine power, the situation must
be properly evaluated and dealt with on an individual
basis. Contact your local JLG Authorized Service Center
(ASC) or the JLG Service Department at (877) 554-5438
for specific instructions for your particular situation.
If it is necessary to tow the vehicle a short distance to
avoid a potentially hazardous situation such as being in
an unsafe area on the worksite or on a roadway, prepare
the vehicle for towing as follows;
1. Remove the load from the vehicle.
2. Fully retract the boom. Position forks approximately
24" above ground. (Refer to Section 4.3.10,
Emergency Boom Lowering and Retracting for
proper procedure if required.)
3. Open the engine compartment cover. Allow the
hydraulic oil to cool.
WARNING:
WHEELS. Failure to do so could result in
death or serious injury from vehicle roll-away.
4. Block all four wheels to help prevent the vehicle
from moving after the parking brake is disabled.
5. Locate the emergency towing pressurizing valve (1)
located under the radiator on the mounting bracket.
6. Turn the ignition switch to the ON position (with the
engine not running), release the parking brake
switch.
Note: With the ignition switch in the ON position, the low
brake pressure buzzer will sound continuously until the
towing operation is complete and ignition switch turned
to the OFF position.
7. Use the handle (2) on the emergency towing valve to
pump pressure into the system. Watch the pressure
gauge (3) while pumping pressure into the park
brake system. DO NOT exceed 650 psi (45 bar).
Model MMV Rev. 12/04
General Information, Specifications and Maintenance
BLOCK ALL FOUR
CAUTION:
(45 bar) when pressurizing the park brake.
Applying too much pressure may damage the
brake seals.
2
1
3
8. Turn the steering wheel until the front tires are
pointed in a straight ahead position.
WARNING:
door with the air conditioner rocker switch in
the ON position and the fan switch turned to
the ON position. Contact with moving parts can
cause death or serious personal injury.
9. Open the rear door. Connect the steer cylinder
crossover tow hoses (4) together. The two hoses are
located inside the rear of the frame.
4
DO NOT exceed 650 psi
OM1051
DO NOT open the rear
4
OM1080
2.77