Poulan Pro Front Line VF550 - Manual (Page 14)

14
Fig. 20
Fig. 21
Fig. 22
ENGINE
TO AD JUST CARBURETOR
The carburetor has been preset at the factory and ad just ment
should not be necessary. However, engine per for mance
can be affected by dif fer enc es in fuel, tem per a ture, al ti tude
or load. If the carburetor does need ad just ment, contact
your nearest authorized service center/de part ment
IMPORTANT: NEVER TAMPER WITH THE ENGINE GOVER-
NOR, WHICH IS FACTORY SET FOR PROPER ENGINE SPEED.
OVER SPEED ING THE ENGINE ABOVE THE FACTORY HIGH
SPEED SETTING CAN BE DANGEROUS. IF YOU THINK THE
ENGINE-GOVERNED HIGH SPEED NEEDS ADJUSTING,
CONTACT YOUR NEAREST AUTHORIZED SERVICE CENTER/
DEPARTMENT, WHICH HAS THE PROPER EQUIP MENT AND
EXPERIENCE TO MAKE ANY NEC ES SARY ADJUSTMENTS.
TO REPLACE V-BELT (SEE Fig. 20 - 22)
• Clutch housing/engine assembly must be removed to
service belt. See "TO REMOVE CLUTCH HOUSINGI-
ENGINE ASSEMBLY" in this section of manual.
• Using pliers, remove cable spring and return spring
from pivot bracket.
• Remove plastic snap-in plug from clutch housing.
•
Using pliers, depress conduit fitting tabs and pull conduit
fitting through hole in clutch housing.
• Pull cable spring and cable through snap-in plug hole
in clutch housing.
• Remove bolt, washer, and lock nut attaching idler
bracket to clutch housing.
• Remove bolt, washer, and lock nut attaching idler pulley
to idler bracket. Remove bushing from between idler
bracket and clutch housing.
• Replace belt and reinstall pulley, idler bracket, conduit
fitting, springs, and hardware in reverse order.
• Reinstall clutch housing/engine assembly, making sure
belt is inside belt guide stud.
• Check tine operation. See "To Check Tine Operation"
in this section of manual.
CABLE
SNAP-IN
PLUG
CONDUIT
FITTING
TABS
RETURN
SPRING
CABLE
SPRING
CLUTCH
HOUSING
BELT
GUIDE
STUD
LOCK NUT
WASHER
BOLT
CLUTCH
HOUSING
SNAP-IN
PLUG
LOCK NUT
BOLT
WASHER
IDLER BRACKET
IDLER PULLEY
BUSHING
SERVICE AND ADJUSTMENTS