128 Towing a nd Tr a nsporTing
6 TOWING AND TRANSPORTING
6.1
Towing
WARNING
Personal injury or equipment damage hazards from improper towing.
►
Do not attempt to tow the machine if the steering system or brake system is not serviceable. Loss of control during towing can occur. Load the wheel loader and transport it to a repair facility with trained technicians.
► A tow bar is preferred for towing the wheel loader. Towing straps, cables or chains must be of sufficient capac
ity to withstand the energy imparted to the towed machine by the towing source. Inspect the towing device to confirm that it is serviceable and will perform to OSHA ratings for the device.
► The towing machine must be sufficiently powerful and massive enough to control the towing event.
►
Develop a coordinated plan between the towed machine operator and the towing machine operator before attempting to start towing. Agree on visual signals if verbal communication is not feasible.
►
Do not begin the tow until all other people are safely away from the towing area in the event an unforeseen incident occurs.
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Towing a nd Tr a nsporTing 129
NOTICE
Towing the wheel loader can damage the hydrostatic propulsion system unless the following conditions are met:
Do not tow the wheel loader more than 500 meters
(0.3 miles).
Do not exceed 2 km/h (1.2 mph) during the towing operation.
Transporting the wheel loader farther than 500 meters (0.3 miles) requires that it be loaded on suitable transport to the repair destination.
Towing equipment
Do not use the towing equipment to pull trailer loads.
Fig. 64
Towing equipment
130 Towing a nd Tr a nsporTing
Disconnecting the drive (Bypass- switching)
WARNING
Possibility of personal injury or equipment damage. An unsecured operator station can move or tip unexpectedly during a towing operation.
►
Do not attempt towing the wheel loader until the operator cab/platform has been secured.
SW 4
SW 13
Activating the bypass
Deactivating the bypass
1
Fig. 65
Short-circuiting the drive
2
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Towing a nd Tr a nsporTing 131
To tow the loader, it is necessary that you disconnect the drive. In this case the travel transmission is switched on to free wheeling. For this purpose the variable displacement pump has incorporated high pressure relief valves with bypass function.
1.
Tilt the operator cab/platform upward from the left side for access to the high pressure relief valves (refer to
Section 10.7.1, pages 170-174).
2. Loosen hex nut Item 2 (Fig. 65).
3. Screw in the stud Item 1 (Fig. 65) until it is level with the hex nut.
After towing:
1.
Tilt the operator cab/platform upward from the left side for access to the high pressure relief valves (refer to
Section 10.7.1, pages 170-174).
2. Screw back stud Item 1 (Fig. 65) to stopper.
3. Tighten hex nut Item 2 (Fig. 65) to a torque of 22 Nm
(16 ft.lbs.).
Note:
Turn the studs Item. 1 (Fig. 65) no further than
described, otherwise parts of the valve become damaged.
4.
Return the operator cab/platform to operating position
and follow instructions provided in Section 10.7.1, pages
170-174 to securely fasten the operator cab/platform
in the normal operating position.
5. The Wheel Loader can be towed.
