Briggs & Stratton MB (18 HP) Lawn Mower User Manual


 
Maintenance Instructions REPLACING/REPAIRING
47
Engine/PTO Belt
1. To remove the engine/PTO belt:
a. Remove belt guard from underneath muf-
fler. Refer to Remove Belt Guard photo.
b. Relax the belt by depressing the spring-
loaded idler arm.
c. Roll the belt off the pulley and remove the
belt.
Remove Belt Guard
Remove Bolts to Access
Engine/PTO Belt
Push Idler Pulley
to Relax Belt
Idler Pulley
Idler Arm
Electric
Clutch
Idler
Pulley
Engine/PTO
Belt
Ten sion
Spring
PTO Drive
Pulley
Tension
Spring
Idler Pulley
Idler Arm
Electric
Clutch
Idler
Pulley
PTO Drive
Pulley
Engine/PTO
Belt
Engine/PTO Belt (Disengaged)
Engine/PTO Belt (Engaged)
2. Reverse the removal procedure to replace the
engine belt.