SP4012 SERVICING BELTS
36
REPLACING V-BELT
• Replace the clevis pin and the cotter pin
onto the linkage assembly.
• After belt tension is adjusted properly,
replace pump drive. Make sure that the
rubber insert is in place when replacing
pump drive. Replace belt keeper on
idler pulley and retighten the beehive
belt keepers.
• Replace belt keeper on idler pulley and
tighten belt keepers at engine pulley.
• Replace V-belt guard cover and tighten
bolts. DO NOT RUN MACHINE
WITHOUT ALL GUARDS IN PLACE
AND SECURED.
GENERAL TENSIONING OF V-BELT DRIVES
Tensioning of belts on the V-belt drive is critical to tighten the outboard bearing and pulley. A
few simple rules about tensioning will satisfy most of your requirements:
1. The best tension for the V-belt drive is
the lowest tension at which the belts will
not slip under the highest load condition.
2. Check the tension on a new drive
frequently during the first day of
operation.
3. Thereafter, check the drive belt tension
periodically.
4. Too much tension shortens belt and
bearing life.
5. Keep belts and sheaves free from any
foreign material that may cause slippage.
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