Towing Method; Towing For Heavy Objects; Manual Release Of Negative Brake - Volvo EC330B Operator's Manual

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Towing method

WARNING!
Use a wire rope of sufficient strength for the towing.
S83019

Towing for heavy objects

In the event of slipping into swampy ground or towing heavy ob-
jects, attach a wire rope to tow the machine as shown in the illus-
tration.
Put wood blocks between the wire rope and the machine to protect
the machine and wire rope from damage.
NOTE :
Do not use shackle holes (A) to tow the machine. The holes
are only for anchoring when transporting the machine. See
Transporting the machine on page 77.
S83018

Manual release of negative brake

When pulling the machine due to track motor and gearbox trouble,
the negative brake should be released.
1 Remove two plugs ( ) in the valve casing. Screw in 2 cap-
screws M16 (130 mm) to tap into the brake piston. Pull out the
piston and the brake will be released.
1 Plug for brake release.
2 When the negative brake is released, but the motor does not
S83021
rotate. If it is impossible to operate the machine due to the fail-
ure of the pump, connect the pressure measuring ports (refer
to the figure) Am and Bm with a short hose and tow the ma-
chine slowly.
Operating instructions
Towing method 103