BELT TENSION AND INSTALLATION
Gates Tension Testers
(Part# 7401-0076) are available
directly from Go-Devil or any
local Gates Dealer. (See page
14 for Instructions)
Gates Tension Tester...How it works!
The tension tester is pushed against the center of the belt width through the inspection
hole. Pencil type tension testers like this one measures belt tension by showing the force
required to deflect the belt a predetermined distance. Force and deflection on Surface
Drive Engines should be kept within the tolerance listed below. Belts that are run too loose
will cause an increase in driveline vibration resulting in reduced belt life. When
tensioning a new belt, adjust to the high end of the given tolerance to allow for belt
stretch. Never tension the belt more than specified! Over-tensioning the belt may
cause premature wear or damage to the engine and drive unit bearings. If checking
the tension on an existing motor target 17 lbs. for belt tension.
All FNR Models
Force = 13 - 21 lbs. (Target 17 lbs.) Deflection = 1/4”
TOOLS REQUIRED
Torque Wrench (to 250 Lbs.-In.)
3/8” Socket
9/16” Socket
6” long Socket Extension
3/8” Drive Ratchet
9/16” Wrench
11/16” Crowfoot or open end wrench
3/8” Drive universal joint
Gates Tension Tester
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