OPERATOR'S MANUAL
48" SNOW BLADE
Model Number
45-0636-669
Husqvarna
547 53 77-01
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
FORM NO. 3-415 (03/03/25)
2
1. Read the tractor and snow blade owner's manuals and know how to operate your tractor before using tractor with snow
blade attachment.
2. Never operate tractor and snow blade without wearing proper clothing suited to weather conditions and operation of
controls.
3. Never allow children to operate tractor and snow blade, and do not allow adults to operate without proper instructions.
4. Always begin with transmission in rst (low) gear and gradually increase speed as required.
SAFETY RULES
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.
LOOK FOR THIS SYMBOL TO POINT OUT
IMPORTANT SAFETY PRECAUTIONS.
IT MEANS — ATTENTION! BECOME
ALERT! YOUR SAFETY IS INVOLVED.
CAUTION: VEHICLE BRAKING AND
STABILITY MAY BE AFFECTED WITH THE
ADDITION OF AN ACCESSORY OR AN
ATTACHMENT. BE AWARE OF CHANGING
CONDITIONS ON SLOPES.
CARTON CONTENTS (Loose Parts in Carton)
6
9
7
2
1
3
4
5
8
REF QTY DESCRIPTION
1 1 Hanger Bracket, L.H.
2 1 Hanger Bracket, R.H.
3 1 Hanger Bracket Assembly
4 1 Channel Sub Assembly
5 1 Blade Assembly
REF QTY DESCRIPTION
6 1 Blade Pivot Rod
7 1 Lift Handle Tube
8 1 Lift Handle Rod
9 1 Cable
3
D
x4
K
H
x2
I
x2
J
x5
G
x2
B
Q
x8
E
x4
C
M
x12
P
N
x4
O
x2
L
x4
F
x2
A
R
x8
10
12
15
13
14
16
18
11
17
PARTS IN PACKAGES
REF QTY DESCRIPTION
10 1 Cap
11 1 Blade Pivot Shaft
12 2 3/8" Hex Nut
13 1 Trip Spring
14 1 Plastic Grip
REF QTY DESCRIPTION
15 1 Hex Bolt, 3/8 x 3-1/2"
16 1 Release Grip Assembly
17 2 Skid Shoe
18 1 Grip
REF. QTY. DESCRIPTION
A 1 Spacer, 5/8" Long
B 1 Hex Bolt, 1/4-20 x 1-1/2"
C 1 Hex Bolt, 5/16-18 x 1-1/2"
D 4 Hex Bolt, 3/8-16 x 1"
E 4 Bolt, Carriage 5/16-18 x 1"
F 2 Clevis Lanyard Fitting
G 2 Plastic Tie
H 2 Hex Jam Nut, 5/16" Fine Thd.
I 2 1/4" Nylock Hex Nut
J 5 5/16" Nylock Hex Nut
REF. QTY. DESCRIPTION
K 1 Channel Pivot Pin
L 4 3/8" Flanged Lock Nut
M 12 5/16" Washer
N 4 Hairpin Cotter
O 2 Cotter Pin 1/8" x 1-1/4"
P 1 1/2" Washer
Q 8 5/16" Lock Washer
R 8 Bolt, Hex M8 x 30mm
HARDWARE
4
(1) Pliers
(1) Hammer
(1) Adjustable Wrench (or socket set)
(1) 9/16" Open End or Box End Wrench
(1) 7/16" Open End or Box End Wrench
(1) 1/2" Open End or Box End Wrench
TOOLS REQUIRED FOR ASSEMBLY
Remove all parts and hardware packages from the
carton. Lay out parts and hardware and identify using
the illustrations on pages 2 and 3.
CAUTION: Do not begin assembling until
the tractor engine, muffler and exhaust
deector have been allowed to cool off.
FIGURE 1
FIGURE 2
FIGURE 3
ASSEMBLY INSTRUCTIONS
NOTE: Right hand (RH) and left hand (LH) are determined
from the operator's position while seated on the tractor.
STEP 1: Remove any bolts found in the locations circled
in gure 1. Save bolts for reinstalling when snow blade
hanger brackets are removed from the tractor.
5/16"
WASHER (M)
5/16" LOCK
WASHER (Q)
M8
HEX BOLT (R)
R.H. HANGER
BRACKET
STEP 3: Attach the hanger bracket assembly (3) to the
hanger brackets, using the upper holes. Use four 3/8" x 1"
hex bolts (D) and 3/8" anged lock nuts (L). See gure 3.
3/8" x 1"
HEX BOLT (D)
3/8" FLANGED
LOCK NUT (L)
HANGER BRACKET
ASSEMBLY
STEP 2: Attach the R.H. hanger bracket (2) to the front
four holes in the right side of the tractor frame using
an M8 hex bolt (R), 5/16" lock washer (Q), and 5/16"
washer (M) as shown in gure 2. Repeat step for the
L.H. hanger bracket.
NOTE: large hole in center of bracket is for cable
management.
5
STEP 4: Center the channel sub assembly (4) between
the tabs on the back of the blade assembly (5).
• Slide the blade pivot shaft (11) through the holes in the
tabs and the holes in the channel sub assembly (4).
• Secure the blade pivot shaft (11) on both ends using
two cotter pins (O) by bending the ends.
STEP 5: Insert a hex bolt (15) all the way through the trip
spring(13) and place a hex nut (12) one inch onto the
hex bolt as shown.
• Place the hook on the end of the trip spring (13)
around the shaft of the channel sub assembly (4) with
the hook opening facing the blade assembly (5).
• Insert the bolt end of the spring trip (13) into the hole
at the center of the blade assembly (5) and tighten the
hex nut (12); then secure with another hex nut(12) and
tighten.
• Place the vinyl cap (10) on the end of the hex bolt (15).
STEP 6: Install one 5/16" jam nut (H) approximately 3/4"
onto the threaded end of the control cable that has no
rubber cap or preassembled nuts. Then install another
5/16" jam nut (H) approximately 1/4".
• Insert the ball end of the control cable (9) into the
bottom of the clevis lanyard tting (F) and place the
cable into the groove as shown.
• Place a spacer (A) onto the hole on the channel sub
assembly (4) as shown; then place the clevis lanyard
tting (F) on top of the spacer (A) and secure both
parts to the channel sub assembly (4) with a hex bolt
(B) and hex nut(I). Tighten hardware.
• Insert the control cable (9) into the tab (9a). Tighten
both jamnuts (H).
NOTE: Some adjustment of jam nuts may be required
after blade assembly is completed
FIGURE 4
FIGURE 5
FIGURE 6
BLADE
ASSEMBLY
O
BLADE PIVOT
SHAFT
CHANNEL
ASSEMBLY
COTTER PIN (O)
3/8”
HEX NUT (12)
CAP (10)
TRIP
SPRING (13)
15
13
12
CHANNEL
ASSEMBLY
BLADE
ASSEMBLY
9
9a
9a
I
A
F
B
9
H
4
9
F
6
STEP 7: Assemble the 1/2" washer (P) onto the chan-
nel pivot pin (K). See gure 7.
• Attach the channel assembly to the tractor by placing
the end of the channel assembly up inside the pivot
support bracket on the tractor. Align hole (a) in the
channel assembly with the hole in the pivot support
bracket. Insert the channel pivot pin through the
aligned holes from the left side, and secure it with a
hairpin cotter (N).
STEP 8: From the left side, insert the welded end of
the lift handle rod (8) through the hole in the end of
the channel assembly (Figure 8). Next, insert the lift
link pin through the hole in the bracket that is welded
to the lift handle rod. (The lift link is pre-assembled to
the pivot support assembly). Secure the bracket with
a hairpin cotter (N) inserted up through the lift link pin.
• Apply a light coat of oil to the straight upper portion
of the lift handle rod. Slide the lift handle tube (7) onto
the rod.
FIGURE 7
FIGURE 9
FIGURE 10
FIGURE 8
STEP 10: Assemble plastic grip (14) onto lock release
grip assembly. See gure 10.
• Attach lock release grip assembly to lift handle tube
using one 5/16" x 1-1/2" hex bolt (C) and one 5/16"
nylock nut (J). Do not overtighten the nut. The grip
assembly must pivot freely. See gure 10.
• Assemble the ball end of the cable to a cable end
tting (F) as you did to the other end of the cable.
Secure the cable end tting (F) to the weld bolt on the
lock release grip (16) with a 1/4" nylock nut (I). Do not
overtighten the lock nut. The cable tting must pivot
freely. See gure 10.
CABLE END
FITTING
CABLE END
FITTING
STEP 9: Remove the rubber cap and the rst jam nut from
the threaded end of the control cable and slide them
onto the control cable wire. Adjust the second jam nut
on the threads so that it is approximately 3/4" from end.
Assemble threaded end of cable through the cable mount
bracket and secure it with the rst jam nut. Reinstall the
rubber cap onto the threaded cable end. See gure 9.
• Install grip (18) onto the end of the lift handle tube.
NOTE: Some adjustment of jam nuts may be required
after blade assembly is completed.
HAIRPIN
COTTER (N)
CHANNEL
PIVOT PIN (K)
1/2" WASHER (P)
CHANNEL
ASSEMBLY
HOLE (a)
LIFT HANDLE ROD (8)
HAIRPIN COTTER (N)
LONG PIN
(LIFT LINK)
WELDED BRACKET
LIFT HANDLE TUBE (7)
RUBBER
CAP
GRIP (18)
CABLE MOUNT BRACKET
JAM NUTS
3/4"
CONTROL CABLE END
5/16" x 1-1/2"
HEX BOLT (C)
PLASTIC
GRIP (14)
LOCK RELEASE
GRIP ASSEMBLY (16)
1/4" WELD
BOLT
CABLE END
FITTING (F)
5/16" NYLOCK
NUT (J)
1/4" NYLOCK
NUT (I)
CABLE
7
STEP 11: Place the end of the blade pivot rod (6) down
through the blade pivot shaft (11). Attach the other end
of the blade pivot rod (6) to the lift handle tube (7). Se-
cure both ends with a hairpin cotter (N). See gure 11.
• Use two plastic ties (G) to hold the cable securely to
the outside of the handle tube, away from the tractor
to avoid direct heat from the tractor muffler. See gure
11.
• Squeeze the grip assembly to check if blade unlocks
and pivots. To adjust locking mechanism, see
Adjustments section on page 9.
STEP 12: Pivot the blade to the center position and
lower it to the ground. Place shims under the blade to
create the amount of ground clearance you want. The
more uneven the surface the more clearance you will
need.
• Attach the skid shoes (17) to the blade using two
5/16" x 5/16" x 1" carriage bolts (E), 5/16" washers
(M) and 5/16" nylock nuts (J). Tighten the bolts with
the skid shoes resting on the ground. See gure 12.
FIGURE 11
FIGURE 12
BLADE PIVOT
ROD (6)
LIFT HANDLE
TUBE (7)
BLADE
PIVOT SHAFT (11)
HAIRPIN
COTTER (N)
HAIRPIN COTTER (N)
PLASTIC TIES (G)
5/16" x 1"
CARRIAGE BOLT (E)
5/16" WASHER (M)
5/16" NYLOCK NUT (J)
SKID SHOE (17)
8
FIGURE 13
1. To raise the blade, use the handle grip located on the
end of the handle tube. Pull back while pushing down
on the handle grip. To lower blade, pull back while lifting
up on handle grip. See gure 13.
HANDLE TUBE
PULL BACK AND
LIFT UP TO
LOWER BLADE
PULL BACK AND
PUSH DOWN TO
RAISE BLADE
HANDLE GRIP
SECTION 2:
OPERATING THE BLADE
FIGURE 14
2. To unlock the blade, raise the blade to transport position.
Push the lock release grip down against the handle tube
to pivot the blade. Keep the grip depressed and push
forward or pull back on the handle tube, sliding it along
the lift rod. Release the grip to lock the blade when it
is in either the right hand, the left hand or the straight
ahead position. See gure 14.
HANDLE TUBE
LOCK RELEASE
GRIP ASSEMBLY
LIFT ROD
USING THE SNOW BLADE
3. Prepare the lawn tractor engine for cold weather using
instructions furnished with the lawn tractor.
4. Always begin with the transmission in rst (low) gear
and gradually increase speed as required.
5. Do not repeatedly push snow in the same direction. This
causes excessive build up with each successive pass.
6. To reduce icing on the blade, allow the lawn tractor and
blade to adjust to outdoor temperature before operating.
7. For improved snow removal performance, coat the blade
with automotive type paste wax.
CAUTION: Carefully inspect the area to
be worked before operating the snow
blade. Avoid pipes, roots, curbs or other
heavy obstructions.
CAUTION: Know the terrain. Avoid
exceptionally steep slopes or drop-offs
which may be hidden by the snow. Never
run the snow blade into heavy material
at high speed.
CAUTION: Always lower the blade to the
ground before leaving the tractor.
9
SECTION 3:
MAINTENANCE
1. During the operating season, check all bolts, nuts and
hairpin cotters to be sure they are secure.
2. Lubricate all pivot points to help maintain proper
operation of blade.
3. Apply a light coating of oil to the upper portion of the
lift handle rod if the lift handle tube becomes difficult to
slide on the rod.
SECTION 4:
ADJUSTMENTS
To Adjust Blade Spring
1. The tension of the blade adjust spring may be altered to
permit the blade to tilt forward to bypass solid obstruc-
tions. To change the spring tension, adjust the nuts at
upper end of the spring bolt. Standing in front of blade,
turn the nuts counterclockwise to relieve tension and
clockwise to increase tension. Refer to gure 5 on page
5.
To Adjust Blade Shoes
2. The blade shoes at the ends of blade may be raised for
close work on smooth surfaces or lowered to raise the
blade to work on rough or uneven areas. Make sure both
shoes are set evenly and that the nuts are tightened
securely. Refer to gure 12 on page 7.
To Adjust the Blade Pivot Lock Mechanism
3. If the blade will not unlock and pivot, the angle lock bars
are not disengaging from the slots in the pivot plate. To
correct, adjust the 5/16" hex jam nuts to draw the end of
the control cable back towards the cable mount bracket.
The less the threaded end of the cable extends through
the bracket, the more the angle lock bars can retract to
disengage from the slots in the pivot plate. See gure
15.
FIGURE 15
CABLE MOUNT BRACKET
5/16" HEX
JAM NUT
CONTROL
CABLE
5/16" HEX
JAM NUT
SECTION 5:
STORING THE BLADE
Recommendations When Storing
1. Keep the snow blade clean when not in use.
2. Touch up bare metal with paint or apply a light coat of
grease or rust preventive.
3. Lubricate all pivot points as instructed in the maintenance
section.
4. Store in a dry area, protected from weather.
To Remove Blade From Tractor
5. Lower the blade to the ground with the blade in the center
(straight ahead) position.
6. Remove the hairpin cotter which fastens the blade pivot
rod to the blade pivot shaft. See gure 11 on page 7.
7. Remove the hairpin cotter which fastens the lift handle
rod to the lift link pin. See gure 8, page 6.
8. Remove the hairpin cotter from the channel pivot pin
and remove the pivot pin from the channel assembly.
See gure 7 on page 6.
9. Remove the blade, the channel assembly and the
lift handle assembly from the tractor. The brackets
assembled to the tractor frame may be left in place.
10. To remove the brackets assembled to the tractor frame
(hanger brackets and hanger bracket assembly) refer to
gures 2 and 3 on page 4.
11. If the side plates are removed from the tractor frame, be
sure to reassemble any bolts that were removed from
the frame. Refer gure 1 on page 4.
10
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