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[6] CHECKING/ADJUSTING TRACK TENSION
The wear of the pins and bushings on the undercarriage will differ with the working conditions and type of
soil, so inspect the track tension frequently in order to maintain the standard tension.
Stop the machine on firm, level ground when carrying out the inspection and maintenance.
[CHECKING]
1. Run the engine at low idle, move the machine forward a
distance equal to the length of track on ground, then stop the
machine.
2. Choose wooden block (3) that will reach from idler (1) to carrier
roller (2), then place it on top of the track.
3. Measure the maximum deflection between the top surface of the
track and the bottom surface of the wooden block.
Standard deflection (a): 10 to 30 mm
[ADJUSTING]
• There is danger of plug (1) flying out under the high
internal pressure of the grease. Never loosen plug (1)
more than 1 turn.
Never loosen any part other than plug (1).
Never put your face in the mounting direction of plug (1).
• If the track tension cannot be loosened with the
procedure given here, please contact us or our sales
service agency.
If the track tension is not at the standard value, adjust it in the
following manner.
[INCREASING TRACK TENSION]
• Prepare a grease pump
1. Pump in grease through grease plug (2) with a grease pump.
2. To check that the track tension is correct, run the engine at low
idle, move the machine forward a distance equal to the length of
track on ground, then stop the machine.
3. Check the track tension again, and if the tension is not correct,
adjust it again.
Continue to pump in grease until dimension (S) becomes
zero (0). If the tension is still loose, the pin and bushing are
excessively worn, so they must be either turned or
replaced. Please contact us or our sales service agency for
repairs.
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