Craftsman 486.254072 User manual

owners
manual
Model No.
486.254072
CAUTION:
Read Rules for
Safe Operation
and Instructions
Carefully
1985 MODELS & AFTER 1984 & PRIOR MODELS
42" SNOW BLAD
•Assembly
•Operation
•Maintenance
•Repair Parts
,( .....
Sears, Roebuck and Co., Chicago, Ill. 60684 U.S.A.
.PRINTED IN U.S.A.

'RULES FOR SAFE OPERATIONS
Remember, 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.
1. Read the Owners Manuals and know how to operate your lawn tractor, before using with the snow blade
attachment.
=
3.
Never operate lawn tractor and snow blade without wearing proper clothing suited to weather conditions and
operation of controls.
Never allow children to operate lawn tractor and snow blade, and do not allow adults to operate without proper
instructions.
4. Always begin with transmission in first (low) gear and engine at low speed, and gradually increase speed as
required.
42" SNOW BLADE CARTON CONTENTS (Also see page 4)
BLADE HEAD ASS'Y.
!
LI FT BRACKET CHANNEL ASS'Y.
A
©O ©
I
©
Key
A
B
C
D
E
Qty.
1
1
2
4
4
FIGURE 1
Description
Angle Lock Bar (long)
Angle Lock Bar (short)
Carriage Bolt, 3/8"-16 x 1.0"
Lock washer, 3/8"
Hex Nut, 3/8"-16
Key
F
G
H
I
J
Qty. Description
1 Angle Lock Spring
1 Roll Pin, 1/4" x 1.0"
2Hex Head Bolt, 3/8":16 x 1.0"
2 Cotter Pin, 1/8" x 1.0"
1 Blade Adjust Spring Ass'y.
(H.T.)
••::: 2 ¸

ASSEMBLY INSTRUCTIONS
TOOLS REQUIRED FOR ASSEMBLY
(1) Pliers'
(1) Small Hammer
(2) 1/2" open or boxed end wrench
(2) 9/16" open or boxed end wrench
Before attempting to assemble the blade, layout the
blade head assembly, channel assembly and all other
parts, as shown in figure 1.
°Assemble long angle lock bar (A), and short angle
lock bar (B) together using two 3/8" x 1.0"
carriage bolts (C), 3/8" lock washers (D)and
3/8" hex nuts (E), Do Not Tighten. See figures
1 and 2.
,
,
FIGURE 2
Assemble angle lock spring (F) through angle
lock bars positioning end hook as shown. See
Figures 1 and 2.
Assemble hook of angle lock spring into hole of
bracket under pivet bolt. Pull lock bars up to
extend spring just enough to allow assembly of
angle lock bars down through slot inpivot bracket
and channel. See figures 2 and 3.
.
.
__CHANNE L
.
Tighten the 3/8" hex nuts (E) holding the angle
lock bars together..See figure 3.
Assemble channel assembly to blade head assembly
by sliding one end of bar into bracket and then
sliding back and secure with two 1/8" x 1.0"
cotter pins (I). See figures 1 and 4.
LOCKING HEX NUTS
)and Bottom),.: .._.
ADJUST
BRACKET
FIGURE 4
Assemble blade adjust spring (J) hook end in the
middle of rod bracket located between pivot bolt
and angle lock bars. Remove plastic cap and top
hex nut and adjust bottom nut to approximately
one inch or more down from end of adjusting bolt
threads. Assemble adjusting bolt through hole in
top of blade head and lock in position with top
hex nut. Replace plastic cap over end of adjusting
bolt threads. See figures 1 and 4.
BLADE HEAD ASS'Y. SPRING
ADJUSTABLE
ANGLE LOCK BARS
(H) 3/8" x 1.0" HEX HD. BOLTS
(D) 3/8" LOCK WASHERS
(E) 3/8" HEX NUTS
HANNEL ASS'Y.
LI Fr
FIGURE 5
:: FIGURE3
,Assemble lift bracket to end of channel assembly
using two 3/8" x 1.0" hex head bolts (H). 3/8"
lock washers (D) and 3/8" hex nuts (E). See
figures 1 and 5. '
4 .....Assemble 1/4" x !.0,.'.roll.pin (G) through slot in 9. Check all fasteners for tightness; .
channel and hole in end of lock bars centering roll ...
pin below channel. Seefigures 1 and 3...... ii : " " "(continued next page)
3

42" SNOW BLADE CARTON CONTENTS (Also see page 2)
MIDDLE HOLE---
(See note after
step 3).
g
FIGURE 6
A
[]
r_
©
%
[]
©
F ! 7j7 _)
N ®@
L
/
D
USEON i
1984 & PRIOR TRACTORS i
K
\
©@
1
i
_m /
CD@@
/
MTRACTO__
Key Qty.
A 2
B 1
C 1
D 1
F 4
G 8
Description
Mounting Bracket
Lift Arm ( For 1984 &Prior Tractors)
Lift Link
Lift Arm (1985 Tractors)
Carriage Bolt, 3/8"-16 x 1.0"
Lock Washer, 3/8"
Key
H
I
J
K
L
M
Qty.
8
2
2
2
2
2
Description
Hex Nut, 3/8-16
Hex Head Bolt, 3/8-16 x 1.0"
Hex Head Bolt, 3/8-16 x 1.25"
Flat Washer, 3/8"
Hair Pin Cotter, 5/32"
Pivot Bushing
LAWN TRACTOR
IDENTIFICATION.
IMPORTANT: Before proceeding to read Owner's
Manual and attempting to assemble blade to Lawn
Tractor, match you tractor with figure 7A or 7B.
FOLLOW ONLY the assembly instructions given for
the selected tractor, either 1984 and prior models or
1985 models. Before operating Lawn Tractor and
Snow Blade, read the operation instructions and
adjustments section on page 8.
ASSEMBLY OF SNOW BLADE
TO LAWN TRACTOR
NOTE: Mounting bracket kit (71-25408 or 71-25409)
is required to complete blade assembly to tractor.
See page 10.
1. Arrange carton contents as shown in figure 6.
2. Remove cutting deck and belt from lawn tractor.
1985 tractors require removal of mower deck link
arms, R.H. & L.H. (See figure 7C) and belt guide
(See figure 8B).
Mark all loose parts and save for re-assembly.
Refer to Lawn Tractor Owners Manual for cutting
deck removal. See figure 7A or B.
FRAME SIDE PANEL
MASTER LIFT LEVER
Position)
TRACTOR-1984 & PRIOR
(Cutting Deck Removed)
FIGURE 7A
MASTER LIFT LEVER
(Up Position)
SIDE ACCESS PANEL
LAWN TRACTOR
(Cutting Deck Removed)
I" I JP_ I I I'_ r --yrt
r,_un= _o ........ ......
4

1985
TRACTOR
FRAME
LH. SIDE ,
\
L.H. MOWER DECK
LINK ARM
NOTE: On 1985 tractors, the
mower deck link arms (R.H. &
L.H.) must be removed to prevent
interference with blade lift. Arms
and hardware must be savedand
replaced when cutting deck is used.
.
FIGURE 7C
Assemble mounting brackets (A) to each side of
lawn tractor frame using four (*) 3/8" x 1.0
carriage bolts (F), 3/8" lock washers (G) and 3/8"
hex nuts (H). See figure 8A or B.
_NOTE: t984 and prior tractors may require only
three 3/8" x 1.0" carriage bolts. A hex bolt can be
removed from right hand side of tractor frame and
reassembled through middle hole in mounting
bracket (A). See figure 6. Some older style tractors
use four 3/8" x 1.00" carriage bolts (F) to
complete assembly.
(F) 1/8" x 1.0" CARRIAGE
BOLT
3/8" LOC KWASH ER
(A) MOUN
BRACKET (Mounts
TRACTOR FRAME/on outside of frame).
(1984 & PRIOR)
FIGURE 8A
NUT
NOTE: Belt guide and hardware
must be removed -R.H. side only.
Save and replace when cutting deck
is used. (F) x 1.0" CARRIAGE
(A) MOUNTING
BRACKET
(H) 3/8" HEX (Mounts on outside 1985 TRACTOR
BO LT of frame). FRAME
FIGURE 8B
5
4. 1984& PRIOR TRACTORS:
Assemble lift arm (B) to lift link (C) using one
3/8" x 1.25" hex head bolt (J), 3/8" flat washer
(K), pivot bushing (M), 3/8" lock washer(G)and
3/8" hex nut (H) asshown in figure 9A. See figures
6 and 9A.
1985 & AFTER TRACTORS:
Same as above except use lift arm (D). See figures
6 and 9B.
3/8" HEX NUT
3/8" LOCK WASHER
3/8" FLAT
WASHER (M) PIVOT
BUSHING
(J) 3/8" x 1.25
HEX HD. BOLT
(C) LIFT LINK
(B) LIFT ARM
FIGURE 9A
(J) 3/8" x 1.25" HEX
HD. BOLT
(C) LIFT LINK
(D) LIFT ARM
FIGURE 9B
(continued on next page)

5. 1984 & PRIOR TRACTORS:
.
Remove master lift lever by Ioosinging two set
screws and then remove frame side panel.See
figures 7A and 10A.
NOTE: Position master lift lever in forward (down)
_n before removing.
1985 TRACTORS:
Remove Side Access Panel. See figures 7B and 10B.
NOTE: Position master'lift lever in forward (down)
position.
Assemble lift arm and lift link, sub-assembled in
step 4, to master lift bracket using two 3/8" x 1.0"
hex head bolts (I), 3/8" lock washers (G) and
3/8" hex nuts (H) as shown in figure 10A or B.
See figures 6 and 10A or B.
NOTE: Pivot lift arm assembly upward and hold
_tightening. See figure 10A or B. The lift
arm (B) or (D) does not require removal to re-
install cutting deck. The lift link (C) should be
removed when re-installing cutting deck.
(G) 3/8"
(H) 3/8" HEX
NUTS _: _ LOcKWASHERS
, IVIASTER LIFT
•,_ _'\ i_'_/BRACKET
"::.,;',:"o;,"_':_;_"_",?,"_.(B);'"'L_ LIFT ARM-Bolts to
{_.. , i_, _t- /ouf_ide of Master Lift
• " .,'i;l_!!- ,=-=_ff=_,,:_ /_racKel:. lvlvot up when
T_?<¢_, -'°----;' "_ tightening bolts).
•;_'['j,' ".r_':-==:-- Lr----_',
.... i-- : : -_H_\
1984&PRIORTRACTOR 3/8"×i.0"
(L.H. SIDE) \/HEXH.D, BOLTS
FRAME SIDE PANEL _/
REMOVED
FIGURE 10A
REMOVED,
FIGURE 10B
NOTE: When assembling lift arm and lift link sub-
_ly, position the fuel line and battery drain
tube (when equipped) to prevent pinching with
movement of lift system.
6
7. 1984 & PRIOR TRACTORS:
Re-assemble frame side panel and master lift lever
removed in step 5 and return master lift lever to
the up (back) position as shown in figure 7A.
1985 TRACTORS:
Replace Side Access Panel. Return master lift lever
to the up (back) position.
,Position snow blade assembly in front of lawn
tractor and roll lawn tractor forward over the
channel until the cross shaft is centered below
mounting brackets (A). See figures 5 and 11.
<L) _HC_AAIZN"/_.
COTTE R"_h
CHANNEL ASSEMBLY
CROSSSHAFT
FIGURE 11
.Assemble channel cross shaft to mounting brackets
by tilting channel and sliding one end of cross
shaft through hole and pulling opposite end back.
Secure with two hair pin cotters (L). See figures 6
and 11.

(B) LIFT ARM ,(H) 3/8" HEX
/NUT ,,
"_.d_--_" (G) 3/8
I_._-) LOCKWASHER
>_"_K) 3/8" FLAT
J WASHER
MASTER LIFT BRACKET
1984 & PRIOR
TRACTORS
HD. BOLT
LIFT BRACKET
BOLTS TO OUSIDE* OF
LIFT LINK
JEL
/*SOME OLDER BLADES BOLT TO INSIDE.
FIGURE 12A
MASTER LIFT LEVER
(Down Position) DEPTH CONTROL
ADJUSTING KNOB
1984 TRACTOR SHOWN.
1985 TRACTOR HAS LIFT LEVER ON RIGHT
HAND SIDE.
FIGURE 13
(D) LIFT ARM
VIASTER LIFT BRACKET
1985 TRACTORS)
f
CHANNEL
/(H) 3/8" HEX
. _NUT ,,
3/8
._ LOCKWASHER
J(K) 3/8" FLAT
WASHER
_"-'---(C) LIFT LINK
PIVOT BUSHING
+
(J) 3/8" x 1.25" HEX
HD. BOLT
I.I FT BRACKET
BOLTS TO OUTSIDE OF
LIFT LINK.
FIGURE 12B
10. Connect lift link (C) to lift bracket at end of
channel using one 3/8" x 1.25" hex head bolt (J)
3/8" flat washer (K), pivot bushing (M), 3/8"
lock washer (G) and 3/8" hex nut (H) as shown in
figure t2A orB. See figures 6 and 12A or B.
NOTE: Position master lift lever in down position
or block blade in raised position to line up holes in
lift link and lift bracket.
11. Adjust master lift lever movement with depth
control adjusting knob for maximum movement
and to prevent lever from locking in the down lock
notch. See figure 13.
7
(continued on next page)

OPERATION INSTRUCTIONS
and ADJUSTMENTS
The snow blade attachment is designed to move new
loose snow in depths up tO 6" --8". DO NOT
OPERATE lawn tractor with snow blade before
reading Complete Owners Manual.
CAUTION
Hidden objects can cause sudden stops
or change in direction.
1. Prepare the lawn tractor engine for cold weather
use, following instructions furnished with lawn
tractor.
2. Always begin with transmission in first (low) gear
and engine at slow speed and gradually increase
speed as required.
3. To lift blade and lock for transport pull master
lift lever back and lock in notch. See figure 14.
MASTER LIFT LEVER
(Up Position)
MASTER LIFT LEVER
LOCATION FOR 1985
TRACTORS. ._
",.q!
42" BLADE
ADJUSTABLE SKIDS
FIGURE 14
4. Blade angle can be adjusted at blade pivot in front
of tractor to the right, center or left by pulling
back on angle lock bars and pivoting the blade
head. See figure 15.
5. Blade adjust spring tension is adjustable to permit
blade to tilt forward to by pass solid obstructions.
6. Skid shoes may be adjusted by loosening two nuts
and re-positioning to desired height. See figure 14.
7. DO NOT always push snow in the same direction
causing excessive build up with each successive
pass.
8. If blade is stored in heated area, allow lawn tractor
-and blade to adjust to outdoor temperature before
operating to reduce snow build up and icing on the
metal surfaces.
=
2.
3.
4.
8
", ,4- tTZ- :._,,--
MASTER LIFT LEVER ..... "_,
LOCATION (1985 TRACTORS) ,!f_/_~~_
{'=::-_-_MASTE R LIFT LEVER
LOCATION (1984 & PRIOR
FIGURE 15
MAINTENANCE
Check bolts and nuts for looseness occasionally
and re-tighten if necessary.
Keep pivot points oiled to prevent locking from
rust.
Keep front side of blade head clean and waxed
for most efficient operation.
When removing blade for storage make sure to
secure all loose parts and hardware to prevent
loss.

NOTES
9

42" Snow Blade Model No. 486.254072
GUIDE MOUNTING BRACKET
STOCK No. 71-25408
GUIDE MOUNTING BRACKET
STOCK No. 71-25409
÷
36
31
37
3\ ÷3_37
34
NOTE: Guide mounting bracket 71-25408 or 71-25409
is required to complete blade assembly.
26
23
10