Engine Maintenance 9-53
4.Adjust the position of the tensioning system: by using the square hole of the plate, rotate
the arm slowly down and compress the tensioner element until you can fit the gauge tool on
the 2 screw heads of the tensioner.
Warning: The gauge tool must not be locked on the screw heads but must move freely on
and off the head screws. Centre to centre dimension between screws of 139.0mm on
Tensioning Element to be verified by using checking Gauge (P/N: 2042436).
Note: P/N 2042436 is a checking gauge not a setting gauge & should not be used to hold
the dampener in position prior to tightening holding hardware.
5. Once the gauge tool fits perfectly and freely on the screw heads of the tensioner element, remove it and tighten the plate
screws (S2) and (S3) to lock the eccentric plate in that position.
After tightening of the plate screws, check the tensioner centre to centre distance again with the gauge tool and tighten the
screws (S4 and S5) to 22 Ft-lb ±2 Ft-lb
(30 Nm±3Nm).
Warning: Do not use the tensioning system if the gauge tool does not fit correctly on the tensioner.
CLUTCH MAINTENANCE
Inspect the clutch every 6,000 hours of unit operation or yearly, whichever occurs first. Remove the clutch, clean the shoes and
drum, and regrease the bearings. Replace the bearings if they are worn. Inspect the drive bushings, anchor bushings, shoe lining
and springs for wear and replace if necessary.
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