Husqvarna SG 13 B Operator's Manual page 46

PROBLEM
Belt comes off
Belt engages late or slips
Belt not staying tight after adjustment
Cutting wheel does not rotate
Cutting wheel continues to rotate
Parking brake slips
TROUBLESHOOTING
CAUSE
Pulleys not aligned
Belt tension is insufficient
Damaged axle, pulley or key
Engine speed is insufficient to
activate the centrifugal clutch
Belt tension is insufficient
Clutch is worn
The engine speed is not under 1000
rpm, which is required to disengage
the centrifugal clutch
ACTION
Adjust belt tension
Tighten the belt as described in the
operator's manual
Reduce cutting depth
Replace damaged parts
Make sure the setscrews are
properly tightened
Make sure the throttle cable is
working properly
Adjust belt tension
Replace shoes and springs, and/or
clutch bearings
Check for damage on the throttle
cable
Check that the throttle cable is
properly mounted on the throttle
valve
Inspect springs on clutch shoes,
if tension on clutch shoes is not
enough to pull shoes back, replace
springs and clutch shoes
Adjust the brake tension in the
manner described in the
operator's manual
Check for damage on the brake rod
or lever
Check for wear on the brake pads.
replace as necessary
HUSQVARNA
-47