Snapper 4220 Series User Manual

Section II - MACHINE OPERATION
2.1 Make sure that each person authorized to operate
. this SNOW THROWER reads this manual prior to
operation and pays particular attention to safety
precautions (inside front cover) and to all warning
decals on the machine. Check and perform the
following before each start-up.
2.2 PRE-START CHECK & ADJUSTMENTS
A. ENGINE LUBE: Check level and add oil, if
needed, of weight and grade specified in the
Engine Owner’s Manual.
B. FUEL SUPPLY: After making sure unit is
safely away from ignition-producing applianc¬
es,and in area where gasoline fumes can be
dissipated, fill fuel tank with gasoline
specified in Engine Manual.
C. CHECK TIRES and bring pressure up to
specifications -12-15 psi without tire chains or
15-20 psi with chains.
D. CHECK UNIT to make sure guards and
shields are in place and tight. Also check
blower housing to insure that it is free of all
objects.
E. RESET RUNNERS to suit area to be cleared.
Lower skid shoes to provide greater clearance
over gravel, or raise the shoes for smooth,
paved surface. Refer to Figure 3.7, SKID
SHOE ADJUSTMENT.
F. SET DEFLECTOR CAP to throw snow desired
distance. Loosen wing nut, push cap edge back
even with the chute to throw snow up to 30 feet
away, or pull cap all the way out to throw snow
only about three feet. Retighten wing nut after
repositioning cap. ALWAYS STOP ENGINE
before repositioning.
2.3 OPERATIONAL CONTROLS
Know how to stop the SNOW THROWER quickly in
preparation for possible emergency situations.
Forward and reverse motion is stopped by releasing
your grip on the TRACTION CLUTCH handle on the
left handle bar. See Figure 2.1. The blower auger
blades and impeller fan will stop rotating within five
seconds* after releasing the BLOWER CLUTCH
handle on the right. Stop the engines on all models
by rerhoving the ignition key. Other operational
controls are discussed where pertinent under the
following operating procedures.
*NOTE: IF rotation continues after five seconds,
refer to the CLUTCH CABLE instructions for
readjustment.
2.4 STARTING & WARMUP
Whenever possible, push SNOW THROWER
outdoors before starting. If the unit must be started
inside your garage, for example, make sure doors
are wide open to provide maximum ventilation.
Move the unit outdoors as soon as possible after
starting. After performing the pre-start checks and
services described earlier, proceed as follows:
A. THROTTLE CONTROL: Move control to FAST
position.
B. CHOKE: Refer to Engine Manual for priming
and/or choking details.
C. ENGINE IGNITION: On all units, insert key or
turn key to ON position.
D(1)ROPE STARTING: On manual start models,
pull starting rope out in smooth, steady motion
until engine starts. To prolong the life of the
starter rope,slowly guide the handle back to
the engine rather than allowing it to snap
back.
D(2)ELECTRIC STARTING: On units with plug-in
120 Volt electric start, connect the starter
cable to the engine starter system, insert the
three pronged plug into a grounded 110-volt
power receptacle and depress the starter
button on the cable until engine starts. Detach
cable from receptacle and engine. On jump
start equipped models, refer to instructions
provided in kit.
NOTE: If engine does not start after five
seconds of continuous cranking, release the
key or start button to prevent overheating of
the starting motor. Locate and correct cause of
starting problem before repeating electric
starting attempt.
WARM-UP PERIOD: Allow brief warm-up
outside with clutches released to avoid stalling
cold engine. Reset Choke as instructed in
Engine Manual as the unit warms up.
2.5 OPERATION: Select desired traction speed by
adjusting DIRECTION CONTROL LEVER, depress
TRACTION CLUTCH handle and drive unit to area
to be cleared. Depress BLOWER CLUTCH handle
and proceed to blow snow. The THROTTLE
CONTROL should normally be in the FAST position
for best result under most conditions. CAUTION: If
clogging occurs, back unit away from snow bank,
release both CLUTCH handles and, as a further
precaution, stop the engine and remove spark plug
wire before clearing the snow from the housing
and/or discharge chute.
2.6 BEFORE STOPPING: Move unit to cleared area,
release TRACTION CLUTCH handle and run up to
top speed with BLOWER CLUTCH HANDLE
depressed to clear housing of slush and snow, thus
preventing freeze-up of the impeller upon restart¬
ing next time.
7 STOPPING PROCEDURE: On all units, remove the
key to stop engine or move the THROTTLE
CONTROL to OFF or STOP.
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Snapper 4220 Series Specifications

General

Brand	Snapper
Model	4220 Series
Category	Snow Blower
Language	English