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Owner's Manual
CRI1FTSMI1N
40"- 2 STAGE SNOW THROWER
TRACTOR ATTACHMENT
Model No. 486.248400
CAUTION:
Before using this product,
read this manual and follow
all Safety Rules and
Operating Instructions.
: Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
PRINTED IN U.S.A.
• Safety
• Assembly
• Operation
• Maintenance
• Parts
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ACCESSORIES ................................ ,.......................... 2
SAFETY RULES.._.._ ........ L..i_L_._._: .......................... 3
FULL SIZE HARDWARE CHART ......... :....................... 4
CARTON CONTENT*S..._..,_ ...... ..:.:...... :....................... 5
ASSEMBLY ................................................................. 5"
OPERATION .................. :.......................................... 15_
MAINTENANCE ......................................................... 16
SERVICE AND ADJUSTMENTS ................................ 17
STORAGE ................................................................. 18
TROUBLESHOOTING ............................................... 18
REPAIR PARTS ILLUSTRATION ......................... 20,22
REPAIR PARTS LIST ........................................... 21,23
SLOPE GUIDE .......................................................... 19
PARTS ORDERING/SERVICE ................ BACK COVER
LIMITED ONEYEAR WARRANTY ON 40" 2-STAGE SNOWTHROWER
For one year from the date of purchase, when this snow thrower ismaintained and lubricated according tothe operating
and maintenance instructionsinthe owner's manual, Sears willrepair any defect inmatedal orworkmanship free ofcharge.
Ifthis snow thrower is used for commercial or rental purposes, this warranty applies for only 90 days from the date of
purchase.
This warranty does not cover repairs necessary because of operator negligence or abuse, including the failure to maintain
the equipment according to instructions contained in the owner's manual.
WARRANTY SERVICE IS AVAILABLE BY CONTACTING THE NEAREST SEARS SERVICE CENTER/DEPARTMENT
IN THE UNITED STATES.
This warranty applies only while this product is in the United States.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co. D/817 WA. Hoffman Estates, Chicago, IL 60179
These accessories were available when the unit was purchased. They are also available at most Sears retail outlets
and service centers. Most Sears stores can order repair parts for you when you provide the model numbers of your
tractor and snow thrower.
WHEi=L WEIGHT TIRE CHAINS
DRIFT CUTTER BARS
KIT NO. 71-52050
======_
The model number and serial numbers will be found on a
decal attached to the snow thrower.
You should record both the serial nLimber and the date of
purchase and keep in a safe place f(_rfuture reference.
MODEL NUMBER:
SERIAL NUMBER:
DATE OF PURCHASE:
2
486.248400
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Any power equipment can cause injury if operated improperly or if the user does not understand how to operate
the equipment. Exercise caution at all times, when using power equipment,
• Read this owner's manual carefully and know how
to operate your snow thrower and how to stop the
unit and disengage the controls quickly.
• Never allow (_hildren to operate the equipment.
• Never allow adults to operate the equipment
without proper instruction.
• Keep the area of operation clear of all persons,
especially small children, and pets.
• Thoroughly inspect the area where the equipment
is to be used and remove all door mats, sleds,
boards, wires and other foreign objects.
• Disengage all clutches and shift into neutral before
starting engine.
• Do not operate equipment without wearing ad-
equate winter outer garments.
• Wear substantial footwear which will protect feet
and improve footing on slippery surfaces.
• Check fuel before starting the engine. Do not
remove the fuel cap or fill the fuel tank while the
engine is running or hot. Do not fill the fuel tank
indoors. Gasoline is an extremely flammable fuel.
• Make sure the snow thrower height is adjusted to
clear the type surface it will be used on.
• Do not use the snow thrower without the rear
weight attached to the tractor.
• Never make any adjustments while the engine is
running.
• Always wear safety glasses or eye shield during
operation or while performing and adjustment or
repair.
• Do not place hand or feet near rotating parts. Keep
clear of the discharge opening at all times.
• Use extreme caution when operating on or crossing
gravel surfaces.
• Do not carry passengers.
• After striking a foreign object, stop the engine,
remove the wire from the spark plug and then
thoroughly inspect the snow thrower for damage.
Repair any damage before restarting and operating
the snow thrower.
• If the snow thrower starts to vibrate abnormally,
stop the engine immediately and check for the
cause. Vibration is generally a warning of trouble.
• Stop the engine whenever you leave the operating
position, before unclogging the snow thrower or
making any adjustments or inspections.
• Take all possible precautions when leaving the unit
unattended. Disengage the attachment clutch lever
or switch, lower the snow thrower, shift into neutral,
set the parking brake, stop the engine and remove
the key.
• When cleaning, repairing or inspecting, make
certain all moving parts have stopped..Disconnect
the spark plug wire and keep it away from the plug
to prevent accidental starting.
• Do not run engine indoors except when transport-
ing the snow thrower in or out of the building. Open
the outside doors. Exhaust fumes are dangerous.
• Do not clear snow across the face of slopes.
Exercise extreme caution when changing direction
on slopes. Do not attempt to clear steep slopes.
Refer to the slope guide on page 19 of this manual.
• Never operate the snow thrower without guards,
plates or other safety protection devices in place.
• Never operate the snow thrower near glass enclo-
sures, automobiles, window wells, drop offs etc.
without proper adjustment of the snow-thrower
discharge angle.
• Never direct discharge at bystanders or allow
anyone in front of the snow thrower.
• Never run the snow thrower into material at high
speeds.
• Do not overload the machine capacity by attempt-
ing to ctear snow at too fast a rate.
• Never operate the machine at high trar_sport speed
on slippery surfaces. Look behind and .use care
when backing.
• Watch for traffic and stay alert when crossing or
operating near roadways.
• Disengage power to the snow thrower when trans-
porting or when not in use.
• Use only attachments and accessories approved by
the manufacturer of the snow thrower (such as
wheel weights, counter weights, cabs etc.)
• Never operate the snow thrower without good
visibility or light.
,_ Look for this symbol to point out important safety precautions. It mean--Attention!!
Become alert!! Your safety is involved.
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Two shear bolts (X) and hex lock
nuts (Y) are provided as
replacement parts for the spiral
augers. Store in a safe place until
needed. (See page 17,)
SHOWN ACTUAL SIZE
IW
I
U
REF.
A
B
C
- D
E
F
G
H
I
J
K
L
M
N
O
P
QTY.
1
4
2
6
2
4
2
2
6
4
12
10
1
6
2
2
NOT SHOWN ACTUAL SIZE
/Z
DESCRIPTION
Hex Bolt, 1/2" x 1-1/4"
Hex Bolt, 3/8" x 1"
Hex Bolt, 5/16" x 1-3/4"
Hex Bolt, 1/4" x 1"
Slotted Truss Head Bolt, 3/8" x 1"
Carriage Bolt, 3/8" x 1" •
Carriage Bolt, 5/16" x 1-3/4"
Carriage Bolt, 5/16" x 1-1/4"
Carriage Bolt, 5/16" x 1"
Shoulder Bolt, 3/8" x 5/8"
Lock Washer, 5/16".
Lock Washer, 3/8"
Lock Washer, 1/2"
Washer, 1/4"
Washer, 5/16"
Bowed Washer
I
/GG
cc
REF. QTY. DESCRIPTION
Q 6 Hex Lock Nut, 1/4"
R 12 Hex Nut, 5/16"
S 9 Hex Lock Nut, 3/8"
T 1 Hex Nut, 1/2"
U 2 Hairpin Cotter, 5/64"
V 1 Hairpin Cotter, 3/32"
W 4 Hairpin Cotter, 1/8"
X 2 Shear Bolt
Y 2 Hex Lock Nut, 5/16"
Z 1 Tarp Strap
AA 1 Spring
BB 3 Chute Keeper
CC 1 Chain, Tensioning
DD 1 Trunnion
EE 1 Plastic Cap
FF 2 Lock Pin
GG 1 Nylon Tie
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CARTON CONTENTS
1. Cross Brace (Weight Tray)
2. Side Brace (Weight Tray)
3. Right Hand Side Plate (Stamped "R';)
4. Left Hand Side Plate (Stamped "L")
5. Anti-rotation Bracket
6. Engagement.Rod
7. Engine Pulley Keeper
8. Chute Crank Rod Assembly
9. Support Tube, Crank Rod
10. Plastic Keg
11. Left Hand Hanger Bracket (Stamped "L")
12. Right Hand Hanger Bracket (Stamped "R")
13. Lift Handle Tube and Cable
14. Clutch Idler Assembly
15. V Belt, 55"
16. V Belt, 112" (Attached to Housing Assembly)
17. Chute and Control Cable Assembly
18. Weight Tray
19. Housing Assembly
Hardware Package (Stored inside Plastic Keg)
11
12
14
17
18
19
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TOOLS REQUIRED FOR ASSEMBLY
(2) 7/16" Wrenches
(2) 1/2" Wrenches
(2) 9/16" Wrenches
(2) 3/4" Wrenches
(1) Knife
ASSEMBLY OF PARTS TO TRACTOR FRAME
Right hand (R.H.) and left hand (L.H.) are determined
fTOmthe operators positionwhile seated on the tractor.
• Remove and save two bolts from each side of the
tractor frame as shown in figure 1.
ADDITIONAL ITEMS REQUIRED
General Purpose Grease
REMOVAL OF PARTS FROM CARTON
Remove all parts and hardware packages from the
carton. Lay out all parts and hardware and identify
using the illustrations on pages 4 and 5.
NOTE: Not all of the supplied parts and hardware will
be used. If your tractor has a manual attachment
clutch, you will not use items S(1), V(1), AA(1) and
CC(1) shown on page 4. If your tractor has an electric
attachment clutch, you will not use Items U(2) and
DD(1) shown on page 4, and items 6 and 7 shown on
page 5.
CAUTION: Before starting to assemble
the snow thrower, remove the spark plug
&
wire(s), set the parking brake and
remove the key from the tractor ignition,
BOLTS REMOVEDFROM THESEHOLES
FIGURE 1
Assemble the R.H, Side Plate (marked with an "R") to
the now empty holes In the right hand side of the
tractor frame using two 3/8" x 1" hex boltsand 3/8"
lock washers as shown In figure 2. Repeat for the
L,H, side.
TRACTOR PREPARATION
Before proceeding with these instructions, refer to the
Service and Adjustments section of your tractor owner's
manual for specific safety Instructions.
• Allow engine, muffler and exhaust deflector to cool
before beginning.
• Remove any front or rear attachment which is
mounted to your tractor.
• - Remove the mower deck. Refer to your tractor
owner's manual for removal instructions. Mark all
loose parts and save for re-assembly.
• Remove the tractor hood and grill assembly. Refer to
yourtractor owner's manual for removal instructions,
NOTE: If the side plates are removed from the
tractor frame, bolts must be assembled back into
the empty holes in the frame.
3/8" LOCK
WASHER
3/8" X 1"
HEX BOLT
FIGURE2
6
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• Assemble a shoulder bolt to the bottom hole in
each side plate, securing each bolt with a 3/8" lock
washer and a 3/8" hex lock nut. See figure 3.
_8" HEX LOCK NUT
3/8"LOCK
WASHER
R. H. SIDE PLATE
3/8"SHOULDER BOLT
FIGURE3
INSTRUCTIONS FOR TRACTORS NOT HAVING
FOOT REST BRACKETS UNDER THE FOOT RESTS
(Figure 5.)
• Locate the empty hole beneath the foot rest in the
left side of the tractor frame as shown in figure 5.
Attach the L.H. Hanger Bracket (marked "L') to the
inside of the frame using a 3/8" x 1" carriage bolt,
3/8" lock washer and 3/8" hex lock nut. Make sure
the bolt is assembled from the inside of the tractor
frame. Repeat for the R.H. side.
HINT: If the tractor's suspension -arms are in the
way, lower them using the attachment lift lever.
INSTRUCTIONS FOR TRACTORS WITH FOOT REST
BRACKETS UNDER THE FOOT RESTS (Figure 4.)
• Remove and discard the bolt and nut from the LH.
foot rest bracket and the side of the tractor frame
as shown in figure 4. Repeat for the R.H. bracket.
HINT: If the tractor's suspension arms are in the
way, lower them using the attachment lift lever.
Using the now empty hole and the hole beside it,
attach the L.H. Hanger Bracket (marked "L") to the
inside of the tractor frame. Use two 3/8" x 1"
carriage bolts, 3/8" lock washers and 3/8" hex lock
nuts, making sure the bolt heads are on the inside
of the tractor frame. Repeat for the R.H. side. See
figure 4.
/ / LOCK-----_
BOLT REMOVED WASHER /
- FROM THIS
-_ 3/8" HEX
LOCK NUT
/
I
3/8" x 1"
CARRIAGE L H. HANGER
BOLT
FIGURE5 LEFT SIDE VIEW
INSTRUCTIONS FOR ALL TRACTORS
• Remove and discard the bolt, washer and nut
which fasten the sway bar bracket to the L.H. side
of the tractor frame. Replace with a shoulder bolt
and a 3/8" hex lock nut as shown in figure 6.
BRACKET
3/8" xl"
CARRIAGE
BOLT
FIGURE4
(_-
!
BRACKET
SUSPENSION ARM
LEFT SIDE VIEW
SHOU
I
I
FIGURE 6
BOLT REMOVED
FROM THIS HOLE " HEX
\ LOCK NUTSWAY BAR /
BRACKET
LEFT SIDE VIEW
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• Assemble a shoulder bolt arid 3/8" hex lock nut to
the R.H. side of the tractor fi'ame, using the first
empty hole to the rear of the R.H. hanger bracket.
See figure 7
ENGAGEMENTROD
CLUTCH ARM
Replace the engine puney keeper on your tractor
with the new pulley keeper supplied with the snow
blower. Attach the keeper to the frame using the
original bolt, washer and nut. See figure 7.
NOTE: Some tractors may already be equipped
with an identical pulley keeper.
ORIGINAL BOLT,
NUT AND WASHER
SHOULDER BOLT
R.H. HANGER BRACKET
-\\
FIGURE7
RIGHT SIDE VIEW
TRUNNION
/
5/64" HAIRPIN
CO'I-rER
\
SUSPENSION ARM
FIGURE8_ RIGHT SIDE VIE.W
Be sure that the loose end of the engagement rod
is lifted up toward the front of the tractor (as shown
in figure 9) when performing the next operation.
You can temporarily support the rod using a rubber
band tied to the engine pulley keeper.
Attach the snow thrower's clutch/idler assembly to
the tractor frame by sliding the notched arms at the
rear of the assembly onto the two shoulder botts
assembled to the inside of the tractor frame. Lift
the front of the assembly, fitting the sides into the
R.H. and L.H. hanger brackets. Attach the assem-
bly to the brackets using two pivot lock pins and
1/8" hairpin cotters. See figure 9.
INSTALLING THE CLUTCH/IDLER ASSEMBLY ON
TRACTORS WITH MANUAL ATTACHMENT
CLUTCHES (Use these instructions if your tractor
has an attachment clutch lever on the dash panel
for starting and stopping the mower deck.)
• Move the attachment clutch lever on the dash
panel to the disengaged (down) position.
• Screw the trunnion onto the end of the engagement
o-red as shown in figure 8.
Locate the clutch arm which is found underneath
the right hand side the tractor, just to the inside of
the suspension arm. This is the arm that the mower
clutch rod was connected to. This arm will move
forward and backward if the attachment clutch lever
on the dash panel is moved.
Position the engagement rod to the inside of the
clutch arm and insert the drilled end of the rod
through the arm. Secure with+a 5/64" hairpin cotter.
See_igure 8.
1/8" HAIRPIN COTTER
FIGURE9
PIVOT LOCK PIN
ROD
RIGHT SIDE VIEW