• The operator should get on the machine being towed and operate the steering in the direction that the ma-
chine is towed.
• Always run the engine to allow the steering and brakes to be used.
When engine does not run
• The brakes will not work, so be extremely careful.
• Connect the towing machine securely to the machine being towed.
Use 2 towing machines of the same class or larger than the machine being towed: connect one machine
each to the front and rear of the machine being towed.
• If it is necessary to change the direction of the machine being towed, it is possible to use the secondary
steering, but it can be used for a maximum of only 90 seconds.
• If the secondary steering cannot be used, disconnect 2 hydraulic hoses each on the left and right from the
steering cylinders, then perform the towing operation.
When removing the hoses, block the hoses with plugs and fit oil containers to the mouthpiece of the cylin-
der to prevent oil from draining to the ground.
METHOD FOR RELEASING PARKING BRAKE
WARNING
• If any problem occurs in the brake hydraulic system, there is a high probability that the wheel
brakes will not work properly. Always drive slow when towing the machine.
• When releasing the parking brake, check that the area around the machine is safe and always chock
all the wheels before starting the work.
If the wheels are not chocked, there is a danger that the machine may move suddenly.
• Always stop the engine before starting the operation to release the parking brake.
The parking brake is automatically actuated when the pressure in the hydraulic circuit abnormally drops and
when the accumulated pressure in the accumulator drops.
See the following procedure if it is necessary to release the parking brake when towing or moving the machine.
NOTICE
Evenly tighten the bolts for releasing the parking brake. Otherwise, the inside piston will get distorted
and be damaged. Tighten the bolts diagonally and alternately.
Items to be prepared
• M12 bolt (stem length: 65 to 80 mm, screw pitch: 1.75 mm) x 20 pieces
• Washer for M12 bolt x 20 pieces
• Container to catch the drained oil
1.
Stop the engine.
2.
Chock the tires.
3.
Place a container to catch the drained oil under the rear
axle brake.
OPERATION TROUBLES AND ACTIONS
3-255
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