Sears Craftsman 944.621531, Руководство пользователя

Страница: 14 / 32

14
ENGINE
Maintenance, repair, or replacement of the emission control
devices and systems, which are being done at the custom-
ers expense, may be performed by any non-road engine
repair establishment or individual. Warranty repairs must be
performed by an authorized engine manufacturer's service
outlet.
TO ADJUST CARBURETOR
The carburetor has a high speed fixed jet and has been
preset at the factory and adjustment should not be neces-
sary. However, minor adjustments may be required to
compensate for differences in fuel, temperature, altitude or
load. If the carburetor does need adjustment, proceed as
follows.
SERVICE AND ADJUSTMENTS
V-BELT
IDLER
PULLEY
TRANSMISSION
PULLEY
BELT
GUIDE
ENGINE PULLEY
BELT
GUIDE
TO REPLACE V-BELT (See Fig. 21)
Replace V-belt if it has stretched considerably or if it has
cracks or frayed edges.
Belt guard must be removed to service belt. See “TO
REMOVE BELT GUARD” in this section of manual.
BELT REMOVAL
• Remove V-belt from transmission pulley first and then
from engine pulley.
FIG. 21
BELT REPLACEMENT
• Install new V-belt to engine pulley first then to transmis-
sion pulley. Be sure belt is positioned on inside groove
of both pulleys, inside all belt guides and rests on idler
pulley.
CHECK TINE OPERATION
• See “TINE OPERATION CHECK” in this section of
manual.
REPLACE BELT GUARD
IMPORTANT: NEVER TAMPER WITH THE ENGINE
GOVERNOR, WHICH IS FACTORY SET FOR PROPER
ENGINE SPEED. OVERSPEEDING THE ENGINE ABOVE
T H E F A C T O R Y H I G H S P E E D S E T T I N G C A N B E
DANGEROUS. IF YOU THINK THE ENGINE-GOVERNED
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
N E A R E S T A U T H O R I Z E D S E R V I C E C E N T E R /
DEPARTMENT, WHICH HAS THE PROPER EQUIPMENT
A N D E X P E R I E N C E T O M A K E A N Y N E C E S S A R Y
ADJUSTMENTS.