Snapper 4220 Series User Manual

Section III - MAINTENANCE
3.7 BELT SERVICE
Belts do not require attention at any specific
interval, but should be checked if performance
deteriorates. This could occur due to slippage of
worn or loose belts. Check and adjust tension of
clutch cables first as described in the CLUTCH
ADJUSTMENT section. If performance continues
to be poor, after clutch cable tension has been
corrected,then check belts. MAKE SURE ENGINE
IS STOPPED AND SPARK PLUG WIRE DIS¬
CONNECTED before working on the belts.
NOTE: Blower rotation should cease within five
seconds after clutch handle is released. If rotation
continues after five seconds,cable may be too tight.
If readjusting the cable does not correct the
stopping time, check to make sure the idler return
spring is connected and that the idler is properly
set. See your SNAPPER Dealer to have this
condition corrected.
3.8 BELT TENSION: Tension on the traction drive belt
is automatically maintained by an individual idler
spring. After removing the belt guard and bottom
cover, check to make sure this spring is intact and
properly installed. If the spring is properly
connected, check for excessively worn belts. Notice
the return spring on the idler for the blower drive -
this spring activates the brake. The idler should
always return to braking position! Tension of the
blower drive belt, which is on the % dia. engine
drive pulley, is adjusted by loosening and
repositioning the idler pulley. To increase tension,
loosen the idler pulley retaining nut, hold the idler
arm and push the pulley tighter against the belt.
See Figure 3.4. Retighten nut after repositioning
and check for proper clutching action with blower
clutch handle released. Tension of the traction belt
on the inside groove is non-adjustable. Before
reinstalling belt guard,check to make sure the belt
guide on the right side is about 1/16” away from
the outside surface of the blower belt with clutch
engaged. Adjust the guide by loosening bolts and
moving guide.
3.9 CLUTCH CABLE ADJUSTMENT
If slippage is noted,check tension of both clutch
cables. When properly adjusted,the cables should
be completely slack with clutch handle released and
tight when the handle is fully depressed. The
springs on both cables should deflect 3/8” when
the handle is depressed. To adjust cable length,
(shorten or lengthen), loosen jam nut and rotate
adjuster sleeve. Retighten jam nut.
See Figures 3.5 and 3.6.
FIGURE 3.6
FIGURE 3.4
6

Snapper 4220 Series Specifications

General

Brand	Snapper
Model	4220 Series
Category	Snow Blower
Language	English