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2)
UNDERCARRIAGE MAINTENANCE
Regular, intervals of proper lubrication and maintenance are essential for long life of the parts and
provide safe operation without drastically loss performance.
This chapter provides correct procedures for lubrication and maintenance for the undercarriage.
2.1
Track Tension
2.1.1 Check the track chain condition before and after travelling the machine. The chain may
come off from the track if it is too slack or loose during steering. Use bolts at track
tension adjuster to adjust the track chain tension but do not over tight the track chain
that would give high travel resistance to the machine.
Figure 2.1
2.1.2 Before the track chain can be adjusted, the mechanic must examine how slack the track
is and what is the suitable tension must be set.
2.1.3 Firstly, ensure that the bottom and the top track chains of the pontoon are in tension or
flat. Use the axle tracking force to get the flat chain on top of the pontoon (turn the
sprockets).
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