Replacing tracks
75
RECOMMENDATIONS
Detach the clamshell if in use, as it is not equipped with a hitching point. The following procedure for track replacement aims at minimizing any manual inter· vention while the machine is in motion and the track being rolled up for safety. Both tracks can be replaced simultaneously. This procedure applies to one track only. Select a clean, firm and level supporting surface of about 25 meters in length and free of obtructions, to operate the attachment. Move the machine, drive sprocket first. onto the selected area through a distance twice a long as the length of the machine so the track(s) can be conveniently unrolled.
TOOL REQUIREMENTS
Adjustable sling chain length 10m Crow bar 1.50 m long Wooden blocks Master pin press (Track service tool set) or 5 kg sledge hammer and steel master pin drift.
REMOVING THE TRACK
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Jack the track to be removed clear off the ground, using the attachment swung over the side. Rotate the track to bring the notched pad with the removable link master pin to position 1 on top of the sprocket wheel, the next pin remaining engaged on the sprocket tooth. - Lower the track to the ground - Slacken the track (page 73) Knock out the removable link master pin 2 Keep the steel bushings 3 for reuse Unroll the old track by driving themachine. Place the replacement track near the sprocket. with the pad overlap side in the proper direction Start unrolling the new track in line with the one still mounted on the machine.
