38
BXT Series
7.6 Belt Tension
A centrifugal engine clutch drives the rotor sheave. When the
belt is in disrepair or loose, the ability to efficiently drive the rotor
may be affected.
It is important to periodically check the condition, as well as the
tension of the belt. Frayed, cracked, or worn drive belts should
be replaced. Drive belt should deflect no more than 1/2 to 5/8"
(13 mm to 16 mm). For accurate measurement use a drive belt
tension gauge. Contact your dealer for more information on belt
tension.
WARNING!
Machine shown with guards removed for
illustrative purposes only. Never operate
machine with guards removed.
W001
Drive Belt Tension Check and Adjustment:
1.
Ensure the engine is off (ignition switch is off and the fuel
valve is closed).
2.
Remove the 4 bolts that hold the belt guard to the chipper,
remove the belt guard.
3.
Check the tension by pushing on the belt with your fore
finger and measure its defection. Drive belt should deflect
no more than 1/2 to 5/8" (13 mm to 16 mm).
4.
If the belt requires adjustment, lift and secure the hopper,
loosen (do not remove) the 4 x bolts that hold the engine
mount to the main frame, (access from the front of the
motor, under the motor mount: see fig 23).
5.
Turn the belt tensioning bolt clockwise, to pull the engine
mount outwards to tighten the belt or turn the bolt
clockwise, to loosen the belt.
6.
Snug 1 bolt on each side of the engine mount.
7.
Check the tension by pushing on the belt with your fore
finger and measure its defection. Drive belt should deflect
no more than 1/2 to 5/8" (13 mm to 16 mm).
8.
If the tension is incorrect, loosen the engine mount bolts
and adjust the belt tension bolt as required.
9.
When tension is correct, tighten up all four engine mount
bolts and replace the belt shield and bolts.
Fig. 30 –
BELT TENSION
Belt Tension Bolt:
1. Turn clockwise to tighten.
2. Turn counterclockwise to loosen.
Rotor
Sheave
Centrifugal
Clutch
Drive belt should
deflect no more than
1/2 to 5/8".
Belt Drive
Motor
Mount
