Craftsman 486.244021 Bedienungsanleitung

)SEARS

owners

manual

Model No.

486.244021

48""

DOZER BLADE

CAUTION:

Read Rules for

Safe Operation

and Instructions

Carefully

48 "'_DOZER B

•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.

LOOK FOR THIS SYMBOL TO POINT OUT

IMPORTANT SAFETY PRECAUTIONS. IT

MEANS--- ATTENT:fONf BECOME ALERT!

YOUR SAFETY IS INVOLVED.

Exercise caution at all times, when using power equipment.

1. Read the tractor and dozer blade owners manuals and know how to operate your tractor, before using tractor with the

dozer blade attachment.

2. Never operate tractor and dozer blade without wearing proper clothing suited to weather conditions and operation of

controls.

3. Never allow children to operate tractor and dozer blade, and do not allow adults to operate without proper instructions.

4. Always begin with transmission in first (low) gear and engine at tow speed, and gradually increase speed as required.

48" DOZER BLADE CARTON CONTENTS

(Also See Page 3)

CARTON CONTENTS

REF. QTY. DESCRIPTION RER QTY. DESCRIPTION

NO. NO.

1 (1) Blade Asssembly 8 (2) Lift Pivot Plate

2(2) Channel/Pivot Plate Assembly 9 (1) Support Bracket

3 (1) Lift Assembly 10 (1) Handle Assembly w/grip

4(1) Guide Bracket Assembly 11 (2) Angle Lock Bars

5 (I) Blade. Pivot Bracket 12 (1) Grip Assembly

6 (2) Spring Assembly 13 (1) Control Cable Assembly

7 (2) Hitch Plate (1) Parts Package (Not Shown)

A B C D_ jE

sAC

_,_R _ _R _ K

FIGURE 1

1/4 x 5/8";

1/4"'

LOCK NUT 1/4 x 1-114"'

5/16" JAM NUT

5/16 x I-1/2"'

5/16" LOCK NUT

1f2 x 2-3/4"

FULL SIZE HARDWARE REFERENCE CHART

CONTENTS OF PARTS PACKAGE (Figure 1)

IREF.I QTY.J DESCRIPTION

IAI _1)istop Angle ..........." "

IB I (2) j Keeper Plate

} C I (1) ILift Arm Link ,

1 D I (1) ISpring Pin 1/4 x 1'

I E I (1} tCable Mount Bracket

I F I (t)INylon tie

[GJ(2)[Cable Fitting, End

IHI(1) IAngle Lock Spring

IIt(1))Shoulder Bolt

IJI (1) tHex Whizlock Nut 3/8-16 Thread

IKI(14)IHairpin Cotter 1/8" ,,

ILI(1) tHex Bott 5/16-18 x t-1/2

tMI(1) IHex Lock Nut 5/16-18 Thread

I N i (2) IHex Bolt 1/2-13 x 2-3/4

I O I (2) ILock Washer 1/2"

[ P I (2) _Hex Nut 1/2-13 Thread ,,

I Q ! (2) ICarriage Bolt 3/8,_16 x 1-1/4

i R I (11) ILock Washer 3/8

I S I (11) IlHex Lock Nut 3t8-!6 Thread

T t (21 _Hex Bolt 3/8-16,x 1-1/2'

t U / _(2) tFIat Washer 3/8 Std.

t V I (1) IPivot Bushing (short) ,

I W t (1) IHex Bolt 1/4-20 x 1-1/4'

I X I (1)/Spacer (long)

/ Y [ (3) [Hex Lock Nut 1/4-20 Thread

IZ/ (1) IHex Bolt 114-20 x 5!8'

/AA | (7) /Hex Bolt 3/8-16 x 1

I AB / (4) IHex Jam Nut 5/16-24 Thread

/AC | (2) /Clevis Pin 1/2 x !-t/4"

IAD / (6) IWasher 17/32 x 1-1/2 x 10 Ga.

AE (1) Handle Guide

CARRIAGE

3f8 x I"

318 x 1-1/4"

318" LOCK

318" LOCK NUT

3/8 x 1-1/2""

3t8"' STD

1t2" LOCK

_._P

1/2" NUT

3t8" SHOULDER

3t8 '° WHIZLOCK NUT

17/32 x 1-1f2"'

u i u

ASSEMBLY INSTRUCTIONS

TOOLS REQUIRED FOR ASSEMBLY

(1) 7/16" Open End or Box Wrench

(1) 1/2" Open End or Box Wrench

(1) 9/16" Open End or Box Wrench

(1) 3/4" Open End or Box Wrench

(1) Adjustable Wrench

(1) Hammer

Refer to carton contents figure on page 2 and figure

1 on page 3 for parts and'hardware needed to

assemble dozer blade,

RIGHT HAND (R.H,} AND LEFT HAND

(LH.) ARE DETERMINED FROM

OPERATOR'S POSITION WHILE

SEATED ON TRACTOR.

1, Assemble curved end of angle lock spring into

small hole in washer as shown in figure 2,

MOUNT

ROD

ANGLE LOCK SPRING

CHANNEL/PIVOT

PLATE ASSEMBLY

FIGURE 2

,Assemble the two-angle lock bars together as

shown in figure 3, using one 3/8" x 1-1/4"

carriage bolt down through the top holes with

a 3/8" lock washer and a 3/8" hex nut

underneath. Do not tighten at this time.

e'*'-"-_ 3/8" HEX NUT I3/8" x1-1t4"

CARRIAGE BOLT 3/8" LOCK. I

(TOP_ WASHER*_

ANGLE

LOCK

FRONT -_

LOCK BAR

SLOT

SPRING PiN

HOLE

CHANNEL/PIVOT

PLATE ASSEMBLY

ANGLE LOCK SPRING

FIGURE 3

,Assemble the offset end of angle lock spring into

small holes in angle lock bars as shown in figure

3. Slide lock bars through lock bar slot until

spring pin hole is aligned with bracket on back

side. See figure 4, Using a hammer drive 1/4"

x 1" spring pin into lock bars until flush wit_

bracket. See figure 4. Tighten nut in angle loc¢_

bars which was left loose in step 2,.--

ANGLE

LOCKe_ BARS_,

FIGURE 4

NOTE

Lock bars should pivot freely and

when pulled all the way back the

channellpivot plate assembly should

be unlocked and free to pivot to right

or left position notches.

.Assemble angle stop to top of channel using one

1/4" x 5/8" hex bolt down through left hand

hole, and one 1/4" hex lock nut under channel.

See figure 5. Do not tighten at this time.

114"' HEX LOCK NUT CHANNEL!PIVOT

PLATE ASSEMBLY

I/4"x 5/8" HEX

BOLT

ANGLE STOP

FIGURE 5

3/8" x 1-1t4"

CARRIAGE BOLT

CABLE MOUNT

BRACKET

Assemble 3/8" x 1-l/4" carriage bolt through

square hole in cable mount bracket and through

square hole in lock bars. See figures 6 and 7.

Hold cable mount bracket in position as shown

in figure 7 and secure with 3/8" lock wa'sher

and 3/8" hex nut. ,1

f8" HEX NUT

3tB" LOCK WASHER

FIGURE 6

6. Assemble one 5/16-24" hex nut onto threaded

end of control cable approximately 3/4"' from

end. Assemble threaded cable end through

round hole in cable mount bracket and secure

with another 5/16-24" hex nut. See figure 7.

MOUNT

•BRACKET

CABLE END

BALL EN[

FIGURE 7

7. Assemble ball end of cable through round hote

in cable end fitting and into slo,t of fitting. See

figures 7 and 8.

1/4" xI-1/4'"

HEX BOLT

CABLE END

LONG FITTING

ANGLE STOF

PUSH CHANNEL

1t4" HEX LOCK NUT

FIGURE 8

8. Assemble !/4" x 1-1/4" hex bolt down through

cable end fitting, through tong spacer, angle

stop, (right hand hole) and through channel. See

figure 8. Secure with 1/4" hex lock nut and

tighten the other !/4"' hex lock nut, which was

left loose in step 4. NOTE: Keep cable and

fitting in alignment when tightening nuts.

ASSEMBLY OF DOZER BLADE

TO TRACTOR

Remove mower or any other attachment you may

have mounted to your tractor. Mark all loose parts

and save for re-assembly, Refer to tractor owners

manual for removal of mower/attachment.

1. Assemble. hitch plates to outside of tractor

frame and secure with two 3/8" x 1" hex bolts,

two 3/8" lock washers, and two 3/8" hex nuts

on each side. See figure 9,

318°' x 1"'

HEX BOLT

FIGURE 9

2_ Assemble channel assembly pivot shaft under

front of tractor and into hitch plates as shown

in figure 10. Assemble keeper plates over ends

of shaft (with lip under hitch plates) and secure

by placing hairpin cotters through small holes-

.outside keeper plates near each end of shaft.

CHANNEL ASS'Y. -_-_ HITCH _r

PIVOT SHAFT __ PLATES _J

KEEPER

HAIRPIN COTTER

MOUNT

FIGURE 10

3. Hoid blade head upright and guide one end of

mount rod into hole near bottom of blade mount

gusset. See figures 10 & !1. Secure with a hair-

pin cotter. Slide other end of mount rod

into other blade mount gusset hole and secure

with hairpin cotter.

SPRING

ADJUSTMENT BOLTS

BLADE

CAP

HEX NUT

CHANNEL

ASS'Y.

MOUNT

GUSSET/

HAIRPIN COTTER

[ROD

SPRING

MOUNT EARS

.FIGURE 11

4. Connect curved end of spring assemblies into

spring mount ears. See figure 1t. Remove plastic

cap and one 3/8"hex nut from end of each

spring assembly. Hold blade back against stop

bolts and assemble spring adjustment bolts up

through bar. Re-assemble two 3/8" hex nuts,

removed earlier, onto adjustment bolts on top

side of bar. "13ght6n both spring adjustment nuts

approximately 1" down from end of bolt threads,

see figure 11,to provide tension of blade against

stop bolts.

Re-assemble plastic caps on top ends of

spring adjustment bolts.

NOTE

SEE ADJUSTMENT SECTION ON

PAGE 10 FOR SPRING TENSION.

Assemble blade pivot bracket on to top right

hand side of channel!pivot assembly. See figure

12. Assemble two 3/8" x 1" hex bolts down

through bracket and plate and secure with two

3/8" lock washers and 3/8" hex nuts

underneath.

CHANNEL/

PIVOT

ASS'Y,

BLADE

PIVOT

BRACKET

318" x 1"

HEX BOLT

3/8" HEX NUT AND LOCI{ WASHER....

FIGURE 12

,Assemble the lift pivot plate under the left

hand foot rest of the tractor and over the

suspension bracket mount pin. See figure 13.

Secure with one 17/32" x 1-1/2" flat washer and

one hairpin cotter. See figure 14. Do not

assemble the lift pivot plate under the right hand

foot rest at this time.

LIFT

PIVOT PLATE LEFT HAND SIDE VIEW

FIGURE 13

""---- FRONT (LH.) SIDE VIEW

HAIR PIN

COTTER

17/32" x 1-1

WASHER

-I/ LIFT¸

_PIVOT PLATE

// /I"_-'- (L.H.) LIFT

LtNK ROD

PIVOT HOLE

FIGURE 14

,Pre-assemble front lift arm link to long arm on lift

assembly as shown {n figure 15. Assemble one

3/8" x 1-!/2" hex bolt through one 3/8" flat

washer, through pivot bushing and through large

hole in lift arm link near angle end. Secure with

one 3/8" lock washer and one 3/8" hex nut, See

figure 15. NOTE: Lift arm link must pivot freely.

3f8" HEX PIVOT

BUSHING

3/8"" LOCK WASHER

LONG ARM 3/8"

10. Assemble lift arm link over channel rod and

insert pivot shaft end (from R.H. side of

tractor) into hole in L.H, lift pivot plate- See

figure 17.

TRACTOR (R.H.) SIDE VIEW FRONT'-"-_

(R.H.) SUSPENSION

MOUNT BRACKET

PIN _RM LINK

(LH.) LIFT i

PIVOT PLATE CHANNEL ROD

.,_

/ / PIVOT SHAFT END

FIGURE 17

11. Assemble right hand Iift pivot plate over right

hand end of tift assembly pivot shaft and secure

to right hand suspension bracket mount pin with

one 17/32" x 1-1/2" washer and one hair pin

cotter. See figures 17 and 18.

LIFT ASSEMBLY HEX BOLT

FIGURE 15

9. Relieve spring tension on lift lever {see

figure 16 and note below) !oosening hex jam nut

and unscrewing adjustment bo{t counter-

clockwise. NOTE

Tractor lift lever must be positioned all

the way back and locked in position.

BACK VIEW (TRACTOR)

NUT

_TTACHMENT j

0LIFT SPRING w

FIGURE 16

(R.H.) SIDE VIEW _FRONT----.-

(R.H.) LINK ROD \_/-" "

__r"'_ HAIRpl_rT ERs

'__--_17132 x1-1/2 (R.H.) LIFT

WASHERS PIVOT PLATE

FIGURE 18

12. Move tractor lift lever to forward position.

Assemble one 1/2" x 1-1/4" clevis pin from

inside through one 17/32" x 1-1/2" washer,

through right hand link rod, and through lift

assembly arm. See figure 18. NOTE: Link rods

must be positioned inside of lift assembly arms.

Assemble 17/32" x1-1/2" washer over clevis

pin on outside and secure with a hairpin cotter,

Secure lift assembly to right hand lift pivot plate

with a hairpin cotter through hole in lift

assembly pivot shaft on outside, See figures 18

and 19. Repeat this step on left hand side-

13, Secure lift arm link to channel rod with one

hairpin cotter. See figure t9.

_..__\LIFT ARM LINK

• -IANNEL

(R.H.) LIFT PIVOT ROD:_

ASSEMBLY

HAIRPIN COTTERS pIVOT SHAFT

FIGURE 19

14. Assemble support bracket onto right hand side

of tractor (between muffler guard and tractor

frame if so equipped) using one 3/8" x 1" and

one 3/8" x 1-1/2" hex bolt inside and secure

with one flat washer, two 3/8" lock washers,

and two 3/8" hex nuts on outside. See figure

20,

iHAIR PIN

COTTER

LIFT

3t8" x

HEX BOLT

FLAT

FIGURE 20

15, Assemble handle guide (with loop outside}

at top of support bracket and secure with one

hairpin cotter inside-See figures 20 and 21.

HANDLE

ASS'Y.

3,,-1 I--

CONTROL CABLE END

HAIRPIN HANDLE

COTTER GUIDE

FIGURE 21

16. Assemble handle assembly down through

handle guide as shown in figure 21, Secure

lower end +ofhandle to top side,of blade pivot

bracket with special shoulder bolt (on top) and

318 '" hex whizlock nut underneath. See figure

22.

17. Assemble one 5/16-24" hex nut onto threaded

end of control cable approximately 314" from

end. Assemble threaded end of cable up through

cable mount ear and secure with second

5/16-24" hex nut. See figure 21.

18. Assemble handle grip on upper end of handle

assembly if not already pre-assembled. See

figure 21.l !

EXHAUST

PIPE BLADE

HANDLE PIVOT

TUBE BRACKET

SPECIAL

SHOULDER

BOLT

3/8" HEX

;K NUT

FIGURE 22

19. Wrap plastic tie around handle tube and

cable, (see figure 22), assembling e_d of tie

through lock. Pull plastic tie tight to retain cable

to handle tube just above exhaust pipe. Cut off

extra plastic end.

20. Assemble grip assembly to handte assembly

using one 5/16" x 1-1/2" hex bolt and one 5/16"

hex lock nut, See figure 23. NOTE: Do not over

tighten lock nut, grip assembly must pivot freely.

5/16" x 1-1/2" CABLE END_-_

REX BOLT FITTING 114" REX

LOCK NUT

GRIP

ASSEMBLY

CABLE

ASSEMBLY

/HANDLE

GUIDE

1/4" WELD BOLT

FIGURE 23

21. Assemble ball end of cable (see figure 21),

through round hole in cable end fitting and into

slot of fitting. See figure 23. Assemble cable

end fitting over 1/4'" weld bolt on grip assembly

and secure with one 1/4" hex lock nut, NOTE:

Do not over tighten lock nut, cable fitting must

pivot freely.

(R.H.) HITCH PLATE

_:IL,H.) HITCH PLATE

SHAFT END

/_ GUIDE

BRACKET CHANNEL

ASSEMBLY ASSEMBLY

FIGURE 24

22. Assemble guide bracket assembly shaft end

into the left hand hitch plate` See figure 24. Slide

guide assembly back to the right and into the

hole in the right hand hitch plate, and secure

with a hairpin cotter on each end, See figure

25. Lower front end of guide bracket assembly

to straddle Channel assembly. See figure 25.

(R,H.) HITCH PLATE

_AIRPIN COTTER HAIRPIN

//BRACKET

ASSEMBLY

FIGURE 25

jCHANNEL

_ASSEMBLY

OPERATION

AND ADJUSTMENTS

INSTRUCTIONS

HIDDEN OBJECTS CAN CAUSE

SUDDEN STOPS OR CHANGE IN

DIRECTION.

CONTROLS

Become familiar with all of the controls and

adjustments on the tractor and dozer blade before

operating. Refer to tractor owners manual for

tractor controls. Controls for operating dozer blade

are as follows:

A, Lift control lever:

Located on right hand side of tractor. See figure

26. Move lever forward to lower dozer blad& Pull

lever back to raise dozer blade, Pulling lever all.

the way back locks dozer blade in up position.

ATTACHMENT

DEPTH CONTROL

KNOB

GRIP

FIGURE 26

BLADE ANGLE

HANDLE

B° Lift lever plunger:

Located on top of lift control lever. See figure

26. Pull back on lift control lever and depress

plunger to release.

&WITH THE DOZER BLADE IN THE

"UP" POSITION DO NOT DEPRESS

THE PWNGER WITHOUT H()LDING

BACK ON THE LIFT CONTROL LEVEL

OR DOZER BLADE MAY SUDDENLY

DROP.

C. Attachment depth control knob:

Adjust lift control lever movement with attach-

ment DEPTH CONTROL KNOB (see figure 26)

for maximum movement between locking not-

ches and to prevent lever from locking in the

down lock notch. See figure 26.

D. Blade angle handle and grip assembly:

Located on right hand side of tractor. See figure

26. NOTE: Always raise dozer blade and lock

in "up" position before moving angle control

handle, Depress grip assembly to release blade

angle lock and push/pull angle control handle

forward to move dozer blade angle to left,

center, right and release grip to lock.

ADJUSTMENTS

AI Blade angle lock bars:

If angle lock bars Do Not completely disengage -

from slots in pivot plate assembly, adjustment

of cable is required. See figure 27.

B, Adjust blade springs:

To change spring tension (stand in front of blade

assembly), adjust the nuts at the upper end of

the springs (see figure 27) turning counter

clockwise (x'_) to relieve tension and

clockwise (_) to increase tension. 1/2" x 2-3/4"

HEX BOLTS

LOCK WASHERS

AND

1/2" HEX NUTS

Adjust spring adjustment nuts approximately 1"

from end when moving snow or other light

material, (keep spring tension light for safety).

This frees the blade to spring trip and return if

a hidden obstacle is encountered.

When heavier material is to be moved, adjust

spring adjustment nuts accordingly.

SPRING

ADJUSTMENT NUTS

(BLADE

ASSEMBLY

SPRING

BOLTS

LOCK SPRING /

ADJUSTMENT NUTS

(INSIDE)

PIVO1 lPLATE ,/_' CABLE

ASSEMBLY

FIGURE 27

&KNOW THE TERRAIN. AVOID EXCEP-

TIONALLY SHARP SLOPES OR DROP-

OFFS WHICH MAY BE HIDDEN BY

THE SNOW,

NEVER RUN THE DOZER BLADE

INTO HEAVY MATERIAL AT HIGH

SPEED.

FIGURE 28

C. Dozer spring lockout:

To lock dozer btade spring trip action for heavy

dozer work, install two 1/2" x 2-3/4" hex bolts

(included in hardware package) as shown in

figure 28. Secure with two 1/2" lock washers,

and two 1/2" hex nuts

DO NOT OPERATE TRACTOR AND /

DOZER BLADE AT HIGH SPEEDS

WITH SPRING TRIP ACTION IN.

LOCKED OUT POSITION. 'l

D. Blade shoe adjustment:

Blade shoes on ends of blade,!isee figure 29),

maybe raised for clean dozing on smooth

surfaces or lowered to raise the blade to work

on rough or uneven areas. Make sure both shoes

are set evenly and nuts are tightened securely.

BLADE

FIGURE 29 NOTE

--'IF

Wheel weig[_ts and tire chains should be

used with your dozer to improve traction.

For additional traction, install wheel

weights on rear of drawbar using weight

bracket kit 71-26235 and one or two

wheel weights from wheel weight kit

71-26234.

These accessories are available at your

nearest Sears retail or catalog store.

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