TPC90 Operations Manual
3.3 V-Belt and Clutch
3.3.1 Checking the V-Belt
After 200 hours of operation, remove the upper belt cover to check
the V-belt tension (Figure 2). Tension is best if the belt bends about
0.4 in when depressed rmly with nger between grooves. Loose
or worn V-belts reduce power transmission eciency, causing weak
compaction, reducing the life of the belt itself.
NEVER attempt to check the V-belt while the engine is running. Severe injury can occur if
your hand is caught between the V-belt and the clutch. Always use safety gloves, while
the engine is ON.
3.3.2 Replacing the V-Belt
Remove the belt covers. Use an o set wrench (13mm) or the like on the vibrator pulley (lower) fastening bolt.
Utilize a waste cloth or the like at midway of V-belt on the le side and while pulling it back strongly, rotate the
o set wrench clockwise so that the V-belt is removed.
3.3.3 Checking the Clutch
Check the clutch simultaneously with V-belt. With the belt removed, check the outer drum of the clutch for
seizure and “V” groove for wear or damage. Clean the “V” groove as necessary. Wear of the lining or shoe
should be checked with running check. If the shoe is worn, power transmission becomes decient and slip-
ping will result.
Whenever the compactor’s vibration becomes weak during normal operation (regardless
of operation hours), check the V-belt and clutch immediately.
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