International CUB CADET 86 Operator's Manual page 56

ADJUSTING AND OPERATING
V-BELT
Main Drive Belt—(44-inch and 50-inch mowers)
1. Front cover
2. Idler ratchet
3. V-belt tension bolt
The main drive V-belt is properly tensioned when
the idler ratchet is positioned as shown on the
decal on the front cover of the lift frame.
To adjust the belt for proper tension tighten the
V-belt tension bolt so the notch on the idler
ratchet Is in line with the slot on the cover as
shown in the illustration.
NOTE: After the first half hour of mowing, check
the belt for proper tension.
NOTE: When installing a new belt always check
the condition of the pulleys and if they are not in
satisfactory condition, replace them with new
pulleys available at your International Harvester
dealer.
To install or remove the belt, disengage the idler
ratchet to take the tension off the belt. Readjust
the V-belt tension as previously described.