Brush Bandit 2000XP - Belt Tension

Bandit
Copyright 5/09 PAGE 46
MODELS 2000XP / 2100SP
BELT TENSION
MAINTENANCE SECTION
GENERAL RULES FOR TENSIONING
1. Check tensioning during the rst 2 through 48 hours of run-in operation especially.
2. Over tensioning or under tensioning shortens belt and bearing life.
3. Keep belts free from foreign materials that may cause the belt to slip.
4. Make V-drive inspection on a periodic basis. Never use belt dressing as this will damage
the belt and cause early failure.
5. Belts should never be forced over the sheave. Allow enough room for belts to slip on.
6. Always make sure sheaves are aligned properly.
TENSIONING PROCEDURE
Main Drive Belts
Follow all pre-maintenance shut down procedures. Locate the center of the belt span between the sheaves.
Push or pull on the belt until the belt has deected the specied distance (see NOTICE below). Record the
push or pull force. The specied force varies depending if the belt is new or used. Adjust the belt tension if
the force falls outside of this range. If belts are not properly adjusted belts will slip, glaze over, and be ruined.
This is NOT covered by warranty.
DO NOT IGNORE THIS MAINTENANCE RULE!
New belts stretch very soon and must be adjusted several times in the rst few hours of operation. Adjust after
one hour of operation, then every four hours until the belts quit stretching.
Failure to do this will cause the belts to burn and y off. THIS FAILURE IS NOT COVERED BY WARRANTY!
NOTICE It is a good practice to rotate the belts during tensioning. Then recheck deections. The belts may
need to be tightened again.
NOTICE Kohler or Robin Engines New Belt: 3/8” (9.5 mm) deection at 24 lbs. (10.9 kg) of force.
Used Belt: 3/8” (9.5 mm) deection at 21 lbs. (9.5 kg) of force.
Lombardini or CAT Engines New Belt: 5/16” (7.9 mm) deection at 29 lbs. (13.2 kg) of force.
Used Belt: 5/16” (7.9 mm) deection at 26 lbs. (11.8 kg) of force.
Briggs & Stratton Engines New Belt: 5/16” (7.9 mm) deection at 33 lbs. (15.0 kg) of force.
Used Belt: 5/16” (7.9 mm) deection at 30 lbs. (13.6 kg) of force.
WORN BELT
WORN SHEAVE
GOOD BELT
BELT BELT
SHEAVE SHEAVE
SHEAVE
SPACE
BELT
Engine belt tension, see NOTICE below.
ENGINE BELTS