Moving A Disabled Machine; General; Getting The Machine Unstuck - jcb JS300 Service Manual

Tracked excavators - tier 4i isuzu engine

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If the machine becomes disabled, the machine must be made safe, lifted onto a transporter and moved to a

location where it can be repaired.

You must contact your nearest JCB dealer before you try to tow, winch or push the machine.

Towing, winching or pushing the machine without following the correct procedure will damage parts of the

hydraulic system. If possible, repair the disabled machine where it stands.

Pulling the Machine Out of Soft Ground

If the machine gets bogged down in soft ground, the excavator controls can be used to help get the machine

moving again.

Refer to: Operation > Operating Levers/Pedals > Excavator Arm Controls (Page 96).

To free the machine it is necessary to put something below the track(s) to provide grip.

1. One Track is Bogged Down. Refer to Figure 170.

1.1. Slew the boom towards the side to be freed and stop it at the required angle to the track (the correct

angle is shown ):

1.2. Set the dipper angle (the correct angle is shown) to the boom and crowd the bucket:

1.3. Lower the boom until the bucket touches the ground. If necessary, put a board or something else with

a broad ground contact, under the bucket.

1.4. Lower the boom further and lift the bogged down track off the ground.

1.5. Put a mat, board or log, etc below the track and raise the boom until the track rests on it.

1.6. Drive the machine away.

2. Both of the Tracks are Bogged Down. Refer to Figure 171. Do steps 1.1 to 1.5 of the One Track is Bogged

Down procedure for each track, then drive the machine away or do the following procedure:

2.1. Drive a heavy stake into the ground directly in front of the machine.

2.2. Set the boom and dipper as if to dig, then hook the bucket onto the stake.

2.3. Use the excavator controls to draw in the dipper and the track controls to drive the machine forward

and drag it out of the soft ground.

Moving a Disabled Machine

Moving a Disabled Machine

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