Walker RB6650, IH6620, DB6680, DB6660, SB6670 User Manual
OWNER’S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
and ILLUSTRATED PARTS MANUAL
IH6620 Implement Hitch, RB6650 Rotary Broom, DB6660 Dozer Blade,
SB6670 Two-Stage Snowblower and DB6680 Debris Blower
Please Read and Save These Instructions Effective Date 06-01-01
For Safety, Read All Safety and Operation P/N I375
Instructions Prior to Operating Machine Price $5.00
Foreword
Thank you. . .for purchasing a Walker implement. Every effort has been made to provide you with
the most reliable product on the market, and we are sure you will be among our many satisfied customers. If for any rea son thi s produ ct d oes no t per fo rm to y our expectations, please contact u s at
(970) 221-5614. Every customer is important to us. Your satisfaction is our goal.
Please. . .read thi s manual thoroughl y! This manual is to be use d in conjunction with the mo wer
owner’s manual and the engine manufacturer's manual for the specific engine on the mower
model you are using. Before you operate your new impl ement, please read this enti re manual.
Some of the information is crucial for proper operation and maintenance of this product - it will help
protect your investment and ensure that the implement performs to your satisfaction. Some of the
information is important to yo ur safety and must be r ead and understo od to help prev ent possibl e
injury to the operator or others. If anything in this manual is confusing or hard to understand,
please call our service department, at (970) 221-5614, for clarification before operating or servicing this product.
This manual cove rs the Model IH6620 Imple ment Hitch, RB6650 Rotary Broom, DB6660 Dozer
Blade, SB6670 Two-Stage Snowblower, and DB6680 Debris Blower.
All shields and guards must be in place for the proper and saf e operation of these implements. Where they are shown removed in this manu al , it i s for i ll ust ra tio n purpo ses only. Do not
operate this product unless all shields and guards are in place.
Specifications given are based on the latest information available at the time this manual was
produced.
Walker Mfg. Co. is continuall y str iv ing to improve the desi gn and per for ma nc e of its prod uc ts. We
reserve the right t o m ake chan ges i n sp ecifi catio ns and desi gn wi thout th ereby i ncur ring an y obl igation relative to previously manufactured products.
Sincerely,
WALKER MANUFACTURING COMPANY
Bob Walker, President
Table of Contents
Owner’s Manual
General Information ________________ 1
HIGHLIGHTED INFORMATION _____________ 1
GLOSSARY ____________________________ 1
IDENTIFYING NUMBER LOCATIONS________ 1
SERVICING OF DRIVETRAIN GEARBOX ____ 3
UNIT DESCRIPTIONS ____________________ 3
Implement Hitch _______________________ 3
Dozer Blade __________________________ 3
Rotary Broom _________________________ 3
Two-Stage Snowblower_________________ 3
Debris Blower_________________________ 3
Specifications _______________________ 4
IMPLEMENT HITCH ______________________ 4
DOZER BLADE__________________________ 4
ROTARY BROOM________________________ 4
TWO-STAGE SNOWBLOWER _____________ 5
DEBRIS BLOW ER _______________________ 6
Component Identification___________ 7
IMPLEMENT HITCH ______________________ 7
DOZER BLADE__________________________ 8
ROT ARY BROOM ________________________ 9
TWO-ST A GE SNOWB LOWER_____________ 10
DEBRIS BLOW ER ______________________ 12
Safety Instructions _________________ 14
BEFORE OPERATING___________________ 14
OPERATING ___________________________ 15
MAINTENANCE ________________________ 16
SAFETY, CONTROL,
AND INSTRUCTION DECALS _____________ 17
Assembly Instructions _____________ 19
SETUP INSTRUCTIONS _________________ 19
IMPLEMENT HITCH_____________________ 19
Implement Hitch Installation ____________ 19
Implement Hitch Wiring________________ 20
DOZER BLADE_________________________ 23
Dozer Blade Assembly ________________ 23
Dozer Blade Installation _______________ 24
ROTARY BROOM_______________________ 24
Rotary Broom Installation______________ 24
Optional Gauge Wheel Installation_______ 26
TWO-STAGE SNOWBLOWER ____________ 27
Snowblower Assembly ________________ 27
Snowblower Installation _______________ 28
DEBRIS BLOWER ______________________ 31
Debris Blower Installation______________ 31
PREOPERATING CHECKLIST ____________ 32
Implement Hitch______________________ 32
Dozer Blade _________________________ 32
Rotary Broom________________________ 32
Two-Stage Snowblower________________ 33
Debris Blower _______________________ 33
Operating Instructions_____________ 34
TRACTOR CONTROLS__________________ 34
STARTING THE MACHINE _______________ 34
IMPLEMENT HITCH CONTROLS __________ 34
Implement Lift Switch _________________ 34
Hitch Locking Lever __________________ 34
DOZER BLADE CONTROLS______________ 35
Angle Adjustment Pin _________________ 35
Trip Spring __________________________ 35
DOZER BLADE OPERATION _____________ 35
Raising and Lowering the Blade ________ 35
Normal Operation ____________________ 35
Rigid Blade Operation_________________ 36
Speed Recommendations______________ 36
ROTARY BROOM CONTROLS____________ 36
Ground Contact Knob_________________ 36
Angle Adjustment Lever _______________ 37
ROTARY BROOM OPERATION ___________ 37
Raising and Lowering the Broom _______ 37
Engaging the Rotary Broom____________ 37
General Sweeping ____________________ 37
Snow Removal_______________________ 38
Lawn Thatching and Leaf Raking _______ 38
TWO-STAGE SNOWBLOWER CONTROLS__ 38
Chute Rotation Handle ________________ 38
Deflector Position Control Knobs _______ 38
TWO-STAGE SNOWBLOWER OPERATION _38
Raising and Lowering the Snowblower___ 38
Engaging the Snowblower _____________ 39
Recommendations For Snowblowing ____ 39
Removing Snow______________________ 40
Clogging Checklist ___________________ 40
DEBRIS BLOWER CONTROLS ___________ 41
Chute Rotation Handle ________________ 41
Deflector Position Control Knob ________ 41
DEBRIS BLOWER OPERATION___________ 41
Raising and Lowering the Debris Blower _41
Engaging the Debris Blower____________ 42
Recommendations for
Operating the Debris Blower ___________ 42
STOPPING THE MACHINE _______________ 42
Table of Contents
Maintenance Instructions__________ 43
MAINTENANCE SCHEDULE CHART _______ 43
LUBRICATION _________________________ 44
Rotary Broom Gearbox ________________ 44
Rotary Broom Drive Chain _____________ 44
Two-Stage Snowblower Gearbox ________ 45
Two-Stage Snowblower
Reduction Chain______________________ 45
Grease Fitting and Oil Point Lubrication__ 45
Implement HItch _____________________ 46
Dozer Blade ________________________ 48
Rotary Broom _______________________ 50
T wo-Stage Snowblower _______________ 52
Debris Blower _______________________ 54
REPLACING/REPAIRING ________________ 56
Dozer Blade Cutting Edge______________ 56
Rotary Broom Brush __________________ 56
Rotary Broom Gearbox ________________ 57
Rotary Broom Drive Chain _____________ 57
Rotary Broom Drive Shaft Sprocket______ 58
Two-Stage Snowblower Cutting Edge ____ 59
Two-Stage Snowblower Gearbox ________ 60
Two-Stage Snowblower
Reduction Chain______________________ 60
Two-Stage Snowblower
Reduction Sprocket___________________ 61
Debris Blower Drive Belt _______________ 61
Debris Blower Rotation Pinions _________ 62
ADJUSTMENTS ________________________ 62
Dozer Blade Skid Shoes _______________ 62
Rotary Broom Brush Leveling __________ 63
Rotary Broom Gauge Wheels ___________ 63
Rotary Broom Drive Chain Tension ______ 64
Two-Stage Snowblower Skid Shoes______ 64
Two-Stage Snowblower
Reduction Chain Tension ______________ 64
Debris Blower Front Gauge Wheel_______ 65
Debris Blower Drive Chain Tension ______ 65
Debris Blower Rotation Pinions _________ 66
Debris Blower Rotation Handle _________ 66
TORQUE SPECIFICATIONS ______________ 67
Removal and Storage Instructions _68
REMOVAL ____________________________ 68
Removing Attachments
From Implement Hitch_________________ 68
Dozer Blade ________________________ 68
Rotary Broom _______________________ 68
T wo-Stage Snowblower _______________ 69
Debris Blower_______________________ 69
Removing Implement
Hitch From T ractor ___________________ 70
END OF SEASON STORAGE _____________ 70
Implement Hitch______________________ 70
Dozer Blade _________________________ 70
Rotary Broom________________________ 71
Two-Stage Snowblower________________ 71
Debris Blower _______________________ 71
Illustrated Parts Manual
IMPLEMENT HITCH ASSEMBLY __________ 72
IMPLEMENT HITCH
ELECTRICAL COMPONENTS ____________ 74
DOZER BLADE ASSEMBLY ______________ 76
ROTARY BROOM ASSEMBLY ____________ 78
ROTARY BROOM DRIVE COMPONENTS ___ 80
SNOWBLOWER HOUSING COMPONENTS _82
SNOWBLOWER DRIVE COMPONENTS ____ 84
DEBRIS BLOWER COMPONENTS_________ 86
DEBRIS BLOWER MANUAL
ROTATION COMPONENTS_______________ 88
KEY TO ABBREVIATIONS
USED IN ILLUSTRATED PARTS LIST ______ 90
Warranty___________________________ 91
General Information
HIGHLIGHTED INFORMATION
Walker Manufacturing recommends that any service requiring special training or tools be performed
by an authorized Walker Mower Dealer. There are
several general practices to be aware of in the area
of safety. Most accidents associated with the operation or maintenance of a Walker product are
caused by disregardi ng bas ic saf ety pr ecautio ns or
specific warnings. Such accidents, in most cases,
can be prevented by being aware of the dangers
present.
Information of special importance has been highlighted in bold type in this man ual. Refer to Safety
Instructions for the mean ing s of DANGE R, WARNING, CAUTION, IMPORTANT, and NOTE.
GLOSSARY
There are many ter ms th at ar e ei ther uni que to th is
equipment or that ar e used as acronyms. T he following terms and their defin iti ons wil l help whi le using this manual.
• FORW ARD SPEED CONTROL (FSC) controls
the maximum forward speed of the tractor; functioning as a cruise control.
IDENTIFYING NUMBER LOCATIONS
The implement hitch seri al number is affixed to the
top of the male hitch assembly, underneath the
PTO shield. The dozer blade serial num ber is affixed to the LH side of the hitch box on the back
side of the blade. The rotary broom serial number
is affixed on the RH side of the pivot bracket. The
snowblower serial number is affixed on the RH side
of the snowblower head frame. The de bris blower
serial number is a ffixed to th e top RH side of the
hitch. Model and serial numbers are helpful when
obtaining replacement parts and maintenance assistance. For ready refere nce, please record thes e
numbers in the space provided.
Implement Hitch Model No. _______________
Implement Hitch Serial No. _______________
Dozer Blade Model No. __________________
Dozer Blade Serial No. __________________
Rotary Broom Model No. _________________
Rotary Broom Serial No. _________________
IH6620
DB6660
RB6650
• IMPLEMENT r efers to the dozer blade, rotary
broom, two-stage snowblower, or debris blower
used with the tractor with an implement hitch installed.
• LEFT HAND (LH) refers to the left-hand side of
the machine when the operator is seated facing
forward in the tractor seat.
• MACHINE consists of the implemen t installed
on the tractor, functioning as a single unit.
• POWER TAKE-OFF (PTO) transmits engine
power to run the rotary broom, two-stage snowblower, or debris blower.
• RIGHT HAND (RH) refers to the right-hand side
of the machine when the operator is seated facing forward in the tractor seat.
• TRACTOR is the prime mover, including the en-
gine, drivetrain, o perator seat, and contr ols to
operate the implement.
Two-Stage Snowblower Model No. _________
Two-Stage Snowblower Serial No. _________
Debris Blower Model No. _________________
Debris Blower Serial No. _________________
Date of Purchase _______________________
Fill In By Purchaser
SB6670
DB6680
1
General Information
Implement Hitch Serial Number Location
(Top View)
Serial Number
Serial Number
Two-Stage Snowblower Serial Number Location
(Rear View and RH View)
Serial Number
Dozer Blade Serial Number Location
(Rear View)
Serial Number
Serial Number
Debris Blower Serial Number Location
(Rear View and RH View)
Rotary Broom Serial Number Location
(Rear View)
2
General Information
SERVICING OF DRIVETRAIN GEARBOX
Detailed servicing an d repair of the gearbox used
on the implement attachments is not covered in this
manual. Only routine maintenance and general
service instructions are provided. For the service
of the gearbox during the lim ited warranty period, i t
is important to find a local, authorized servicing
agent of the component manufacturer. Any unau-
thorized work done on these components during
the warranty period may void the warranty. If you
have any difficulty finding an authorized outlet or
obtaining warranty service, please contact our Service Department for assistance:
Walker Manufacturing Company
5925 E. Harmony Road
Fort Collins, CO 80528
1-970-221-5614
A service manual is available for the gearbox from:
Tecumseh Products Co.
900 North Street
Grafton, Wl 53024
Rotary Broom
The rotary broom has a 47- inch (119 cm) sweeping
path and five-position RH/LH ang le head . It is su itable for light snow removal, lawn dethatching/raking and general hard surfa ce sweep ing. It is raised
and lowered automatically with the lift control
switch. The rotary broom is powered by the tractor
PTO through the PTO shaft, gearbox and chain fi nal drive to brush drive shaft. Tire chains and a soft
cab are available as optional equipment.
Two-Stage Snowblower
The 42-inch (107 cm) two-stage snowblower
throws snow up to 40 ft (12 m). It is raised and lowered automatically with the l ift control switch. The
blower spout is controlled with a simple position
control handle. The snowbl ower is pow ered by the
tractor PTO through the PTO shaft, snowblower
drive shaft, and gearbox. Tire chains and a soft
cab are available as optional equipment.
Debris Blower
UNIT DESCRIPTIONS
Implement Hitch
The implement hi tch is required to mount each of
the implements to the tra ctor. It clips on the tractor
in place of the mower dec k in less than a minute.
Each implement slides on the male hitch and easily
locks in place. The mount assembly also includes
operator footrests and an electric power lift. The lift
control switch is mounted on the FSC lever for convenient operator use , and is powered by th e linear
actuator on the implement hitch.
Dozer Blade
The 46-inch (117 cm) dozer blade has a five-position RH/LH angle adjustment. It is used for removal
of snow, loose dirt, and gravel, and is raised and
lowered automatically with the lift control switch.
The dozer blade is d esigned to “trip” forward when
striking a large object, eliminating shock to the tractor and operator. Tire chains and a soft cab are
available as optional equipment.
The debris blower is us ed for parking lot cleaning
and leaf control. It is raise d and lowered autom atically with the lift control switch. The directional
spout adjusts manually. The debris blower is powered by the tractor PTO through the PTO shaft.
Tire chains and a soft cab are availabl e as opt ional
equipment.
IMPORTANT: These imp lements are not intended
for use with Model MS tractors.
3
Specifications
MODEL IMPLEMENTS
IMPLEMENT HITCH
Height 10 in. (25 cm)
Width 33-1/2 in. (85 cm)
Length 30 in. (76 cm)
Overall Length Installed on Tractor 69-3/4 in. (177 cm)
Weight 70 lb (32 kg)
Lift 12 Volt DC Electric Ram Linear Actuator, Operated by Toggle Switch
Mounted on FSC Lever
DOZER BLADE
Height 17-1/2 in. (44 cm)
Width 46 in. (117 cm)
Length Standard Hitch: 22-1/2 in. (57 cm)
Long Hitch: 28-1/2 in. (72 cm)
Longest Hitch: 35 in. (89 cm)
Overall Length Installed on Tractor 87 in. (221 cm), Typical
Weight (minimum) 102 lb (46 kg)
Lift 12 Volt DC Electric Ram Linear Actuator, Operated by Toggle Switch
Mounted on FSC Lever
Hitch System Patented Quick Hitch Syste m
Type Blade Multi-Purpose Blade with Reversible and Replaceable Cutting Edge,
Spring Forward Trip Action with Lock Out
Angle Adjustment Five Positions, 0° (Straight Ahead), 15° and 30° LH or RH
Body Construction Blade Thickness: 11 Gauge Steel
Frame Thickness: 3/8 in. (10 mm)
Cutting Edge Thickness: 1/4 in. (6 mm)
Depth Guide Two Adjustable, Replaceable Skid Shoes,
Adjustable from 1/4 to 3/4 in. (6 to 19 mm)
ROTARY BROOM
Height With Broom: 18-3/8 in. (47 cm)
Without Broom: 11-3/8 in. (29 cm)
Overall Width 47-3/8 in. (120 cm)
Sweeping Path Width (Brush Length) 43-1/4 in. (110 cm)
Length (With Female Hitch) Approx. 45 in. (114 cm)
Overall Length Installed on Tractor 105-1/2 in. (268 cm)
Weight (With Female Hitch) 205 lb (93 kg)
Lift 12 Volt DC Electric Ram Linear Actuator, Operated by Toggle Switch
Mounted on FSC Lever
4
Specifications
MODEL IMPLEMENTS
ROTARY BROOM (continued)
Hitch System Patented Quick Hitch Syste m
Type Brush 18 in. (46 cm) Diameter Polypropylene or Steel, Clockwise Rotation
Brush Drive PTO Shaft Driving Center Mounted Gearbox
Primary Reduction Gearbox, 2.78:1 Ratio
Secondary Reduction #40 Chain and Sprockets, 3.27:1 Ratio
Maximum Brush Speed 260 RPM
Broom Angle Adjustment Five Positions, 0° (Straight Ahead), 12.5° and 25° LH or RH
Working Width At Maximum Angle (25°) 39-3/16 in. (100 cm)
Ground Contact Pressure Screw Adjustment with Viscous Damper
Body Construction 14 Gauge Steel
Capacity Clears up to 4 in. (10 cm) snow
TWO-STAGE SNOWBLOWER
Height (Without Chute) 20-3/4 in. (53 cm)
Width 42 in. (107 cm)
Clearing Width 42 in. (107 cm)
Length (With Female Hitch) 22-1/2 in. (57 cm)
Overall Length Installed on Tractor 95 in. (241 cm)
Weight (With Female Hitch) 210 lb (95 kg)
Lift 12 Volt DC Electric Ram Linear Actuator, Operated by Toggle
Switch Mounted on FSC Lever
Hitch System Patented Quick Hitch Syste m
Type Blower Two-Stage with 12-7/8 in. (33 cm) Diameter Auger and
15-3/4 in. (40 cm) Diameter, 3-Blade Impeller, Clockwise Rotation
Snowblower Drive PTO Shaft Driving Blower Wheel
Impeller Drive Chain, #40
Driving Sprocket: H40C11
Driven Sprocket: H40B32
Auger Drive Worm Gearbox, 5:1 Ratio
Discharge Angle Adjustment Chute Direction Rotation 228° by Crank, Adjustable Spout
Deflector, Adjustable from Operator Seat, Up to 40 ft (12 m)
Discharge Distance
Body Construction Frame Thickness: 14 Gauge Steel
Side Thickness: 11 Gauge Steel
Impeller Housing Thickness: 14 Gauge Steel
Cutting Height 19 in. (48 cm)
Depth Guide Two Adjustable, Replaceable Skid Shoes,
Adjustable from 1/4 to 3/4 in. (6 to 19 mm)
5
Specifications
MODEL IMPLEMENTS
DEBRIS BLOWER
Height 28-1/2 in. (72 cm)
Width 26 in. (66 cm)
Length 34-3/4 in. (88 cm)
Overall Length Installed on Tractor 102-1/2 in. (260 cm)
Weight (With Female Hitch) 130 lb (59 kg)
Lift 12 Volt DC Electric Ram Linear Actuator, Operated by Toggle
Switch Mounted on FSC Lever
Hitch System Patented Quick Hitch Syste m
Type Blower 13-1/2 in. (34 cm) Diameter, 8-blade Aluminum Impeller,
Counterclockwise Rotation
Blower Drive PTO Shaft Driving Blower Wheel
Recommended RPM 3600 RPM (4000 RPM Maximum)
Airflow at 4000 RPM 2000 cfm
Noise Level at 4000 RPM Approx. 90 Dba
Approximate Required Horsepower 14 HP (10.4 kw)
Air Velocity Mean: 125 mph (201 km/h)
Maximum: 160 mph (257 km/h)
Discharge Angle Adjustment Chute Direction Rotation 230° by Crank,
Adjustable from Operator Seat
Outlet Area 25 in.² (161 cm²)
NOTE: The manufacturer reserves the right to make changes in specifications shown herein at any time
without notice or obligation.
6
Component Identification
IMPLEMENT HITCH
Footrest
Male Hitch
Assembly
Safety Chain
Assembly
PTO Shie ld
NOTE:Control Identification shown in
Operating Instructions section
and in
Illustrated Parts Manual.
Male Quick
Hitch Latch
Footrest
Linchpin
Mounting
Tube
Linear Actuator
Linear Actuator
Electrical Connector
Mounting
Tube
Hitch Locking
Lever
Jam Nut
Implement Hitch Top View (Not Installed)
7
Component Identification
DOZER BLADE
Welded Blade
Angle
Adjustment Pin
Trip Spring
Trip Spring
Lockout Pin
Hitch
Box
Female
Quick Hitch
Trip Spring
Lockout Bracket
Skid Shoe
Skid Shoe
Bracket
Skid Shoe
Pin
Dozer Blade Rear View and Right Side View (Not Installed)
8
Component Identification
ROTARY BROOM
Tension Spring
Ground Contact
Knob
Stopper
Pin
Rotary Broom
Housing
Pivot Bracket
PTO Shaft
Female Hitch
Plastic
Wheel
Broom Angle
Adjustment Lever
Brush
Parking
Stand
Rotary Broom Rear View and Right Side View (Not Installed)
9
Component Identification
TWO-STAGE SNOWBLOWER
Deflector Position
Chute Rotation
Handle
Fan
Deflector
Control Knob
Hand Guard
Chute
Gearbox Support
Bracket
10
Frame
Auger
Gearbox
Auger
Two-Stage Snowblower Front View and Right Side View (Not Installed)
Component Identification
Deflector
Deflector Position
Control Knob
Snowblower
Housing
Chute
Chute
Rotation Handle
Reduction
Box Cover
Skid Shoe
Skid Shoe
Two-Stage Snowblower Rear View (Not Inst alled)
Parallel Bar
Female Quick Hitch
PTO Drive Shaft
11
Component Identification
DEBRIS BLOWER
Blower Motor
Housing
Chute Rotation Handle
Belt Guard
Linchpin
Pivot Wheel
Parking Stand
PTO Drive Shaft
Female Quick
Hitch
12
Debris Blower Front View and Left Side View (Not Installed)
Component Identification
Chute Rotation Handle
Belt Guard
Parking Stand
Pins
Driveline Guard
PTO Drive Shaft
Deflector Position
Control Knob
Rotation Pinions
Parking Stand
Female Quick
Hitch
Debris Blower Rear View and Right Side View (Not Installed)
13
Safety Instructions
Pay particular attentio n to any information labeled
DANGER, WARNING, CAUTION, IMPORTANT,
and NOTE in this manual.
When you see the Safety Alert Symbol ( ),
read, understand, and follow the instr uctions. Failure to comply with safety instructions may result in
personal injury.
The seriousness or degree of imp ortance of each
type of information is defined as follows:
DANGER
An IMMEDIATE hazard that WILL result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
WARNING
A POTENTIAL hazard that COULD result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
Walker Manufacturing cannot pred ict every potentially dangerous situat ion . The re fore, i tem s la bel ed
as such in th is m anu al do n ot cover all conc eiv ab le
situations. Any pe rson using procedure s, tools, or
control techniques not recommended by Walker
Manufacturing must take full responsibility for safety.
The Walker Tractor and Implement attachments
have been designed wi th many safety features to
protect the operator from personal harm or injury.
However, it is necessary for the operator to use safe
operating procedures at all times. Failure to follow
safety instructions contained in this manual
may result in personal injury or damage to
equipment or property.
If you have any questions concerning setup, operation, maintenance, or safety, please contact your
authorized Walker Mower Dealer or call Walker
Manufacturing Company at (970) 221-5614.
BEFORE OPERATING
1. Read and understand the contents of this
OWNER'S MANUAL before operating the
machine. Become thoro ughly familiar with all
controls and how to stop the machine and disengage the controls quickly. Replacement Owner's
Manuals are available by sending the Model and
Serial Number to:
Possible hazards or unsafe practices that
MAY result in MODERATE personal injury
or property damage, or machine damage, if
warning is ignored and proper safet y precautions are not taken.
IMPORTANT: Identifies mechanical information de-
manding special attention, since it deals with the possibility of damaging a part or parts of the machine.
NOTE: Identifies information worthy of s pecial attention.
CAUTION
Walker Manufacturing Company
5925 E. Harmony Road
Fort Collins, CO 80528
2. Never allow children to operate or give rides
on the machine. Do not allow adults to operate
without proper instruction.
3. Do not allow anyone other than the operator on
the machine.
4. Keep everyone, especially children and pets, a
safe distance away from the area being cleaned.
Do not operate with bystanders in the area.
5. Do not ope rate the mac hine wearing sneakers,
tennis shoes, or similar lightweight footwear.
Wear substantial protective footwear that will
improve footing on slippery surfaces.
6. The snow or leaves can sometimes hide objects
that might clog the snowblower or debris blower
chute, or other wise cause damage . Clear the area of doormats, sle ds, boards, wires an d other
debris.
14
Safety Instructions
7. Do not wear loose fitting clothing that could
get caught in moving par ts. Always wear ade-
quate protective clothing including long pants.
Wearing safety glasses, safety shoes, and a
helmet is advisable and required by some local
ordinances and insurance regulations.
8. Prolonged exposure to loud noise can cause
impairment or loss of he aring. Oper ator hear-
ing protection is recommended. Wear a suitable hearing pro tective devi ce, such as e armuffs
or earplugs.
9. K eep all prote cti ve shiel ds and safety devic -
es in place. If a protective shield, safety device,
or decal is da maged, unusabl e, or missing, re pair or replace it before operating the machine.
10. Be sure any interlock switches are function-
ing correctly so th e engine canno t be started
unless the Forward Speed Control lever is in
the NEUTRAL position and the PTO clutch is in
the DISENGAGED position. Also, the engin e
should stop if the operator lifts off the seat wit h
the PTO clutch in the ENGAGED position.
OPERATING
NOTE: Refer to the Walker Rider Lawnmowers
OWNER’S MANUAL for safety instructions for
operating the tractor.
1. O per ate th e machi ne onl y in dayl ight or in goo d
artificial light with good visibility of areas being
cleaned.
2. Sit on the seat when starting the engine and operating the ma chine. Keep feet on footrests at all
times when the tracto r is moving and/ or the implement is operating.
3. An inexpe rienced opera tor should learn to steer
(maneuver) the tractor with a slow engine
speed before attempting any operating. Be
aware that, with the front mounted implement
configuration, the back of t he ma chine s wing s to
the outside during turns.
4. Re memb er, for an emerg enc y st op, th e for ward
motion of the tractor can always be stopped by
pulling the Forward Speed Control (FSC) into
the NEUTRAL-PARK position.
11. Never attempt to make any adjustments
while the engine is running, except where specifically instructed to do so.
12. Handle gasoline or diesel fuel with care.
Gasoline is highly flammable and its vapors are
explosive:
a. Use an approved fuel container.
b. Never add fuel to a run ning engine or ho t
engine (allow hot engine to cool several
minutes).
c. Keep matches, cigarettes, cigars, pipes,
open flames, or sparks away from the fuel
tank and fuel container.
d. Always fill the fuel tank outdoors using
care. Fill to about one inch from the top of
the tank. Use a funnel or spout to preven t
spilling.
e. Replace the machine fuel cap and contain-
er cap securely and clean up any spilled
fuel before starting the engine.
5. Di sengage the PTO clutch and put the FSC in
the NEUTRAL-PARK position before starting
the engine (an ig nition inter lock swi tch norm ally
prevents starting of the tr actor if these controls
are in the OPERATING position).
6. Do not run the engine in a confined area with-
out adequate ventilation. Exhaust fumes are
hazardous and can be deadly.
7. Do not carry passengers - maximum seating
capacity is one (1) person.
8. Make sure the au ger, brush, or debris blower is
clear of snow, ice, or debris before engaging the
PTO clutch .
9. Be careful never to throw snow or blow debris towards people or cars, and never allow anyone in
front of the implement.
10. Watch out for hazards hidden under snow or
leaves that coul d enter t he chute or blower w hile
operating.
11. Avoid sudden start s or stops. Before backing
the machine up, look to the rear to be sure no
one is behind the machine . Watch carefully for
traffic wh en cr oss ing or w ork i ng ne ar ro ad wa ys.
15
Safety Instructions
12. Disengage the PTO clutch when transporting the
machine.
13. Do not operate across the face of slopes. Use
extreme caution when changing direction on
slopes. Do not attempt to clear steep slopes.
14. Never adjust gauge wheels or skid shoes
with the engine running. Before adjusting
height or se rvicing, disengage the PTO clu tch,
stop the engine, and remove the ignition key.
Wait for all movement to stop before getting off
the seat.
NOTE: The PTO brake should normally stop
drive line rotation within 5 seconds of disengaging the PTO clutch.
15. D o not operate the snow blower with the blower
spout assembly rem oved.
16. If snowblower clogs:
a. Disengage the PTO clutch, stop the en-
gine, and remove the ignition key before
leaving the seat.
b. LOOK to make sure PTO shaft and auger
movement has stopped before trying to unclog the snowblower.
c. Disconnect the fuel solenoid wire [diesel
engines] or spark plug wire(s) [gasoline
engines].
d. Do not use hands or feet to unclog the
snowblower - use a stick or similar tool.
17. If the implement strikes a solid object or the machine begins to vi brate abnorma lly , immediately
disengage the PTO clutch, stop the engine,
and wait for all moving parts to stop. Dis-
connect the fuel so lenoid wire [die sel engines] or
the spark plug wire(s) [gasoline engines] to prevent accidental starting. Thoroughly inspect the
implement and repair any damage before restarting the engine and operating the machine.
Make sure imp lement compon ents are in good
condition and al l bo lts are tight.
18. D o not touch the engine or muffler while the
engine is running or immediately after stopping
the engine. These areas may be hot enough to
cause serious burns.
19. When leaving the machine unattended, disengage the PTO clutch , stop the engine, and remove the ignition key.
MAINTENANCE
NOTE: Refer to the Walker Rider Lawnmowers
OWNER’S MANUAL for proper tractor maintenance procedures.
1. To prevent accidental starting of the engine
when servicing or adjusting the machine, remove the key from the ignition switch and disconnect the fuel solenoid wire [diesel engines] or
the spark plug wire(s) [gasoline engines].
2. To re duce fire hazards, keep the engine free of
grass, leaves, exc essi ve g rea se , an d di rt .
3. K eep al l nuts, bo lts, an d scr ews ti ght to ensure
the machine is in a safe, working condition.
4. Perform only maintenance instructions described in this manual. Unauthorized mainte-
nance operations or machine modifications may
result in unsafe operating conditions.
5. If the engine must be running to perform a maintenance adjustment, keep hands, feet, and
clothing away from moving parts. Do not
wear jewelry or loose clothing.
6. Always use proper engine service manuals
when working on the engine. Unauthorized
maintenance operations or modifications to the
engine may result in unsafe operating conditions.
7. Alt ering the machine in any m anner which adversely affects its operation, performance, durability, or use will VOID the wa rranty and may
cause hazardous cond it ions.
8. Never attempt to disconnect any safety devices
or defeat the pur p ose of th ese safet y d evi ces.
9. Do not chan ge the eng ine gov ernor set ting s or
overspeed the engine. The governor has been
factory-set for ma ximum-safe engine operating
speed.
10. Use genuine factory replacement parts. Substitute parts may result in product malfunction
and possible in jury to the o perator and/or othe rs.
IMPORTANT: Keep all applicable manuals
immediately accessible to anyone who may
operate or service this machine.
16
Safety Instructions
Implement Hitch
(Walker P/N 6632)
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety, Control, and Instruction Decals are installed on the machine. If any are missing, illegible, or
damaged, a replacement should be ordered and installed before putting the machine into operation. The
Decal Part Number i s listed below and in the Parts Manual; the Decal Location is shown in the Parts Manual.
PTO Shield (Walker P/N 7822)
Attaching Hitch
(Walker P/N I393)
(RAD P/N 657364)
Hitch Mount Adjust
(Walker P/N 6618)
Brush Height (RAD P/N 661521)
Rotating Driveline
(Walker P/N I395)
(RAD P/N 657763)
Important - A void Damage
(RAD P/N 660328)
Brush Ground Contact
(RAD P/N 661052)
Safety Procedures
(RAD P/N 660988)
Rotating Auger
(Walker P/N I394)
(RAD P/N 657762)
17
Safety Instructions
Lubricate Chain
(RAD P/N 657804)
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety, Control, and Instruction Decals are installed on the machine. If any are missing, illegible, or
damaged, a replacement should be ordered and installed before putting the machine into operation. The
Decal Part Number is listed below and in the Parts Manual; the Decal Location is shown in the Parts Manual.
Stay Clear Blade
(RAD P/N 657524)
Use Shear Bolts (RAD P/N 657346)
Danger, High Velocity (RAD P/N 661248)
Trip Spring Lockout
(RAD P/N 657503)
Keep Hands Out
(Walker P/N I396)
(RAD P/N 657761)
Avoid Serious Injury
18
(RAD P/N 661247)
Grease All Points (RAD P/N 6586708)
Check Oil Level (RAD P/N 655683)
Drive Belt Injury
(RAD P/N 660265)
Assembly Instructions
SETUP INSTRUCTIONS
Walker Implements are shipped partially assembled. After uncrati ng t he imp le men t ad apto r and /or
implement(s), initial setup is required.
NOTE: During the process of unpacking, any damaged or missing parts should be noted and reported
to the delivering ca rrier immediately (put in wri ting
within 15 days). The carrier will provide directions
for proceeding with a claim to receive compensation
for damage.
IMPLEMENT HITCH
Implement Hitch Installation
1. Remove the mower deck from the tractor if necessary. Refer to the appropriate Tractor Owner’s Manual.
2. Lightly grease each tractor support arm (2) on
the tractor. Refer to Implement Hitch Installa-
tion photo for location of tractor support arms.
IMPORTANT: If the tractor body needs to be raised,
the PTO shield must be in the closed or down position and the implement must be in the lowered
position. The only time the PTO shield needs to be
open or raised is when connecting or disconnecting
the driveline for the rotary broom, snowblower, or
debris blower.
Hitch Pins Lock Hitch on Support Arms
PTO Shield
in CLOSED
Position
PTO Shield in CLOSED Position
3. Engage the hitch frame tube sockets on the
tractor support arms. Slide the implement hitch
onto the support arms approxim ately 3 in. (76
mm).
4. Install the hitch pin through the hole on the end
of each support arm to loc k the hitch in place.
Two (2) hitch pins are included i n the owner’s
packet of materials.
Grease Tractor
Support Arms
Hitch Frame
Tube Sockets
Implement Hitch Installation
5. Loosen the 3/4-10 jam nut on the end of the implement Hitch. Adjust the 3/4-10 x 2 in. hex bolt
until it contacts the cross-member of the tractor
frame. Securely tighten the 3/4-10 jam nut to
prevent the bolt from moving.
3/4 - 10 x 2"
Hex Bolt
Implement Hitch Jam Nut Adjustment
IMPORTANT: This adjustment will need to be
made only once if the same tractor and hitch are
used together. If the hitch will be used on more
than one tractor , this adjustment will be required
every time the hitch is mounted on a different
tractor.
3/4 - 10
Jam Nut
19
Assembly Instructions
Implement Hitch Wiring
1. Drill five (5) 13/64 in. (5 m m) diame ter holes in
the tractor, two in the FSC lever and three in the
body, as shown in the illustration.
Drill Holes for Implement Hitch Wiring
2. Attach the toggle switch mounting bracket on
the FSC lever using two (2) 10-24 x 1/2 in. bolts
and Keps nuts. Connect the green ground wire
from the actuator wir ing harness to one o f the
bolts of the switch mounting bracket.
4. Attach the toggle switch to the mounting bracket, placing the switch terminals toward the front
of the mower.
Mounting Bracket
Wiring Clamps
Switch
Terminals
Attach Wiring Harness and Toggle Switch
5. On Models MC, MDD/MDG, and MT, connect
the harness red wire to the load side of the ci rcuit breaker mounted on the bracket behind the
battery.
Harness
Mounting
Bracket
Wiring
Harness
Ground
Wire
Attach Toggle Switch Mounting Bracket
3. Install the wiring harness to the tractor body using the three wiring clamps, three 10-24 x 3/8 in.
bolts and Keps nuts.
Red Wire
Circuit Breaker
Connect Harness Wire to Circuit Breaker
IMPORTANT: For all 1987-1997 Model MC
tractors (with Kohler Magnum engine), connect
the harness red wire to the free connector of the
PTO clutch switch red wire. Refer to Implement
Hitch Wiring Diagram illustration.
20
Assembly Instructions
6. Complete the wiring by connecting the wiring
harness ends to the toggle switch and to the actuator motor of the implement hitch.
Wire Harness
Connector
Complete Implement Hitch Wiring
7. Move the implement lift switch backward to
raise the implement hitch to the UP position .
8. Move the implement lift switch forward to lower
the implement hitch to the DOWN position.
9. Raise and lower the hitch a few times to check
the operation and make sure it moves smoothly.
If not, make sure the wiring harne ss ends are
connected properly and sec urely. Refer to Im-
plement Hitch Wiring Diagram illustration.
Actuator Motor
Connector
21
Assembly Instructions
22
Implement Hitch Wiring Diagram
Assembly Instructions
DOZER BLADE
Dozer Blade Assembly
1. Insert the female quick hitch in to the hitch box
on the blade attachment.
2. Align the single hole at the end of the female
quick hitch with the single hole in the hitch box
and insert the pivot pin through both holes. Secure the pivot pin on the underside with a 1/4 x
1 in. roll pin.
Hitch Box
Pivot Pin
Female
Quick Hitch
Align Holes
Roll Pin
Nut
Eyebolt
Welded Tab
Attach Spring to Blade Assembly
5. Insert a 3/16 x 1 in. split spring pin into the angle
adjustment pin.
6. Rotate the female quick hitch to ob tain the required blade angle. Align the hole in the center
of the female quick hitch with one of the five (5)
holes in the hitch box, and insert t he angle adjustment pin thro ugh the to p an d b otto m h ole s.
Refer to Angle Adjustment Pin in Operating
Instructions.
Spring
Insert Female Hitch into Blade Attachment
3. Hook one end of the spring onto the welded tab
on the hitch box. Hook the eyebolt onto the free
end of the spr ing.
4. Insert the eyebolt up through the hole in the upper bend of the blade and secure it with a flat
washer and nu t. Adju st the le ngth of t he eyeb olt
according to the amount of sp ring tension required for safe operation. Refer to Trip Spring
in Operating Instructions.
Angle Adjustment Hole(s)Angle Adjustment
Pin
Female Quick
Hitch
Rotate Female Quick Hitch
For Required Blade Angle
Insert Adjustment Pin and Set Blade Angle
7. Install the two (2) skid shoes in the two brackets
on the rear outer edges of the blade.
23
Assembly Instructions
8. Adjust the skid shoes to allow the required
clearance under the blade. Install a skid shoe
pin in each shoe and lock in place with a 4 mm
x 80 mm hairpin. Refer to ADJUSTMENTS of
Dozer Blade Skid Shoes in Maintenance In-
structions.
Skid Shoe
Pin
Skid Shoe
Bracket
Hairpin
Skid Shoe
Install Skid Shoes
Male Quick
Linchpin
Hitch
Hitch Locking
Lever
Attach Blade to Tractor
2. To install the optional tire chains:
a. Remove the tractor wheels.
b. Attach the tire chains to the wheels.
Female
Hitch
9. Install the trip spring lockout bracket in the upper hole behind the blade using the lockout pin
and hairpin.
Hairpin
Trip Spring
Lockout Bracket
Install Trip Spring Lockout Bracket
Dozer Blade Installation
1. Insert the male quick hitch section of the implement hitch into the female hitch of the blade.
Lock in place by moving the hitch locking lever
fully forward to the LOCKED position. Secure
the male qu ick hit ch la tch wi th th e linc hpi n. Refer to Hitch Locking Lever in Operating In-
structions.
Lockout Pin
in Upper Hole
c. Place the wh eel spacer plates on the lug
bolts. The wheel spacer plates provide
clearance for the chains bet ween the tires
and the tractor body.
d. Place the wheels back on the tractor.
e. Reinstall and tighten the lug bolts.
ROTARY BROOM
Rotary Boom Installation
1. Insert a parking stand into each stand su pport
bracket from the underside. Install a 5/32 x 1-1/
4 in. cotter pin in the upper hole of each parking
stand. Set the parking stands in their most ex-
tended position and secure each stand with
a 4 mm x 80 mm hairpin.
2. Check the pivot lock pin and mak e sure it is in
the innermost position to prevent bulking of
the female hitch member, and to facilitate quick
hitch attachment.
24
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