Document Outline

• Foreword
• Table of Contents
  • Owner’s Manual
  • General Information
  • Specifications
  • Component Identification
  • Safety Instructions
  • Assembly Instructions
  • Operating Instructions
  • Maintenance Instructions
  • Illustrated Parts Manual
  • Warranty
• General Information
  • HIGHLIGHTED INFORMATION
  • GLOSSARY
  • IDENTIFYING NUMBER LOCATIONS
  • Fill In By Purchaser
  • Tractor Serial Number Location
  • Mower Deck Serial Number Location
  • ENGINE SERIAL NUMBER LOCATION
  • Engine Serial Number Location
  • SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS
• Specifications
  • ENGINE
  • ELECTRICAL SYSTEM
  • TRANSMISSION
  • BLADE DRIVE
  • TIRE SIZE
  • TIRE PRESSURE
  • DIMENSIONS (Tractor and Mower)
  • MOWER DECK
  • CURB WEIGHT
  • DRIVE BELTS
  • SEAT
  • FRAME/BODY CONSTRUCTION
• Component Identification
  • Front View and Right Side View
  • Rear View and Left Side View
  • Top View (Body Raised)
• Safety Instructions
  • BEFORE OPERATING
  • OPERATING
  • MAINTENANCE
  • SAFETY, CONTROL, AND INSTRUCTION DECALS
  • SAFETY, CONTROL, AND INSTRUCTION DECALS
• Assembly Instructions
  • SETUP INSTRUCTIONS
  • Battery Service
  • Mower Deck Assembly
  • Deck Caster Wheels Installation
  • Deck Caster Wheel Installation
  • Deck Discharge Shield Installation (Side Discharge Models Only)
  • Deck Discharge Shield Installation
  • PTO Shaft Guard Installation
  • PTO Shaft Guard Installation
  • Tilt-Up Roller Wheel Installation
  • Roller Wheel Installation
  • Mower Deck Installation on Tractor
  • Deck Installation
  • PTO Shaft Connection
  • Mower Deck Installation
  • Deck Counterweight Spring Installation
  • Deck Leveling
  • Deck Leveling
  • PREOPERATING CHECKLIST
  • Body Rod in Engaged Position
  • Body Rod in Stowed Position
  • Deck Secured in Tilt-Up Position
• Operating Instructions
  • CONTROL IDENTIFICATION, LOCATION, AND FUNCTION
  • Ignition Switch
  • Ignition Switch
  • Operating Controls
  • Engine Choke
  • Engine Throttle
  • Choke and Throttle Location
  • Forward Speed Control (FSC)
  • Steering Levers
  • PTO Switch
  • Parking Brake
  • Transaxle Lockout Rods
  • Hydro Lockout Rod Location
  • Hourmeter
  • Hourmeter
  • Operating Controls (Top View from Drivers Point of View)
  • STARTING THE ENGINE
  • ADJUSTING GROUND SPEED AND STEERING
  • Correct Operator Hand Position on the Controls
  • ENGAGING THE MOWER
  • Blade Clutch Engaged
  • Blade Clutch Disengaged
  • STOPPING THE MACHINE
  • ADJUSTING CUTTING HEIGHT
  • Cutting Height Adjustment
  • TRANSAXLE LOCKOUTS
  • Hydro Lockout Rod - Freewheel Position
  • Hydro Lockout Rod - Normal Operating Position
  • RECOMMENDATIONS FOR MOWING
  • Side Discharge Shield in Lowest Position
  • Maximum Recommended Side Slope
  • RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT
• Maintenance Instructions
  • MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MB
  • IMPORTANT TIPS FOR CARE OF THE BRIGGS & STRATTON ENGINE
    • Fuel System
    • Starting
    • Cooling System
    • Air Cleaner
    • Oil
  • LUBRICATION
    • Engine Oil
    • Engine Break-In Oil
    • Checking Engine Crankcase Oil Level
    • Dipstick Operating Range
    • Changing Engine Crankcase Oil/Oil Filter
    • Dipstick and Oil Fill (view from above left side of tractor)
    • Oil Drain and Oil Filter Locations (view from above right side of tractor)
    • Grease Fitting and Oil Point Lubrication
    • Chassis and Deck Lubrication Points
    • Chassis and Deck Lubrication Points
    • Mower Deck Gearbox Lubrication
    • Mower Deck Gearboxes (shown with gearbox cover removed for clarity)
    • Transaxle Lubrication
    • Expansion Reservoir Location
    • Transaxle Oil and Filter Change
    • Transaxle Oil Filter Location
    • Transaxle Drain Plugs (view from underside of tractor)
  • CLEANING
    • Engine Air Cooling System
    • Keep Engine Screen Clean
    • Clean Cooling Fins and Fan
    • Air Cleaner System
    • Air Cleaner Components
    • Grass Buildup in Mower Housing
    • Deck Secured in Tilt-Up Position
    • Transaxle Cooling Fins
    • Transaxle Cooling Fins
  • CHECKING/SERVICING
    • Security of Air Cleaner System
    • Battery
    • Cleaning the Terminals
    • Charging the Battery
    • Tire Pressure
    • Sharpen Mower Blades
    • Belt Locations
    • Mower Blade Profile For Sharpening
    • Blade Balanced on Magnetic Wall-Mounted Balancer
    • Drive Belts
    • Mower Deck Gearbox Oil Seals
    • Spark Plugs
    • Breaker Points
    • Fuel Lines and Clamps
    • Blade Brake Action
  • REPLACING/REPAIRING
    • Drive Belts
    • Belt Locations
    • Engine/PTO Belt
    • Remove Belt Guard
    • Engine/PTO Belt (Disengaged)
    • Engine/PTO Belt (Engaged)
    • Ground Drive Belt
    • Ground Drive Belt Assembly (Disengaged)
    • Ground Drive Belt Assembly (Engaged)
    • Fuel Filter
    • Fuel Filter Location
    • Blade Overload Shear Bolts
    • Cutting Blade Shear Bolts
    • PTO Shear Pin
    • PTO Shear Pin
    • Mower Blades
  • ADJUSTMENTS
    • Transmission Control
    • Steering Lever Position Adjustment - Step 1
    • Lever Alignment
    • Stop Bolt Location
    • Stop Bolt Adjustment
    • Steering Handles Adjustment - Step 2
    • Steering Lever Adjustment
    • Neutral Position Adjustment - Step 3
    • FSC Position
    • Steering Adjustment
    • Actuator Rod Length Adjustment
    • Neutral Window
    • Full Forward Speed Adjustment - Step 4
    • Neutral Travel End
    • Straight Tracking Adjustment - Step 5
    • Neutral Travel End Adjust
    • Neutral Switch Adjustment - Step 6
    • FSC Switch Location
    • Forward Speed Control Friction Adjustment - Step 7
    • FSC Position With Levers
    • Tilt-Up Deck Adjustable Stop
    • Tilt-Up Deck Adjustable Stop
  • ELECTRICAL SYSTEM
• TRACTOR DECALS
  • 1 5803 Walker Manufacturing Logo Body 1
  • 2 5856 Made In USA Body 1
  • 3 5802-2 LH Fender Body, LH Side Near Seat 1
  • 4 4806 Blade Clutch Body 1
  • 5 5802-1 RH Fender Body, RH Side Near Seat 1
  • 6 9804 Axle Lockout Chassis 2
  • 7 4024-2 Oil Reservoir Chassis 2
  • 8 5805 Caution, Engine Exhaust Rear Body 1
  • 9 7818 Warning, Read Manual Body 1
  • 10 4107-1 Decal, Danger On Guard 2
  • 11 4107-4 Decal, Belt Routing On Guard 1
  • 12 7809 Decal, Parking Brake Body, RH Side below Seat 1
  • 13 6875 PTO Alignment Arrow Universal Joint Tube Assembly 1
  • 14 4105-8 Decal/RH, 18HP Body 1
  • 15 4105-9 Decal/LH, 18HP Body 1
• TRACTOR DECALS
• BODY / CHASSIS ASSEMBLY
  • 1 5103 Seat 1
  • 2 7203 Seat Spring Plate 1
  • 3 7223 Compression Spring (1/2 x 1) 2
  • 4 7845 Rubber Bumper (1.375 x .63) 2
  • 5 5841 Retainer Washer (3/8 x 1-1/4) 6
  • 6 7846 Washer (3/8 x 1-1/4 x 1/8) 4
  • 7 7204 Shoulder Bolt, Seat Mount 2
  • 8 7440-5 Shock Mount (1-1/4 x 3/4) 2
  • 9 4105 Rear Body (Includes Item # 11) 1
  • 10 4100 Front Body 1
  • 11 4190 Insulation Foam Pad 1
  • 12 4107-3 Clutch Guard 1
  • 13 4107-2 Upper Guard 1
  • 14 5845 Rubber Bumper (1.50 x 1.25) 2
  • 15 5180 Edge Molding/Lever Opening 2
  • 16 4504-3 Hinge (19") 1
  • 17 4910-2 Battery Hold Down Plate 1
  • 18 5747-10 Rubber Mat, No-Hole (3 x 6) 1
  • 19 4647-1 Tail Weight, LH 1
  • 20 4647-2 Tail Weight, RH 1
  • 21 4300-8 Chassis Guard, Lower Front 1
  • 22 4300 Chassis Frame 1
  • 23 4102 Body Guide 1
  • 24 7222 Extension Spring (1/4 x 3) 1
  • 25 7854 Plastic Tip, Red 1
  • 26 7383-1 Body Latch Hook 1
  • 27 9046 Gas Tank Mount 1
  • 28 4145 Body Support Rod 1
  • 29 4145-1 Spring Clip 1
  • 30 5223 Extension Spring (1/4 x 5-1/2) 1
  • 31 5267-1 Retainer Collar (1") 1
  • 32 5270-1 Pivot Bearing 2
  • 33 5420-2 Tail Wheel Fork 1
  • 34 5037-1 Bearing, Tail Wheel 2
  • 35 5035 Tail Wheel & Tire Assembly (13 x 6.50-6) 1
  • 36 5038-1 Axle Spacer Tube (6-5/8) 1
  • 37 5830 Grease Fitting 1
  • 38 4300-9 Deck Support Arm Mount 1
  • 39 4431 Deck Support Arm/LH 1
  • 40 5775-2 Hitch Pin (#6) 2
  • 41 4430 Deck Support Arm/RH 1
  • 42 5847 Plastic Tip 1
  • 43 5744-20 Spring Arm, Tilt-Up Latch 1
  • 44 5744-10 Spring Pivot Bushing 1
  • 45 5744-15 Compression Spring (3/8 x 5/8) 1
  • 46 5744-13 Mount Angle, LH 1
  • 47 5744-12 Hook, Tilt-Up Latch 1
  • 48 5744-14 Mount Angle, RH 1
• BODY / CHASSIS ASSEMBLY
• MAIN COMPONENT POWER TRANSMISSION
  • 1 4706-1 Extension Spring (3/4 x 4) 1
  • 2 7201-3 DU Bearing 1
  • 3 5830 Grease Fitting 2
  • 4 4325 PTO Belt Tightener 1
  • 5 7201-4 Inner Race (1-1/2) 1
  • 6 5841 Retainer Washer (3/8 x 1-1/4) 1
  • 7 4245-2 Stationary Idler Arm 1
  • 8 4245-1 Idler Pulley (4/Flat) 2
  • 9 4230 Engine/PTO Belt/Matched Set *
  • 10 4410-3 Clutch Spacer 1
  • 11 4410 Electric Clutch 1
  • 12 6325-2 Spacer Bushing (5/16) 1
  • 13 4236 PTO Drive Pulley (5/AA) 1
  • 14 5263 Pillowblock Bearing 2
  • 15 4274 PTO Drive Shaft 1
  • 16 5275-15 U-Joint Tube/9.5" OAL Spline 1
  • 17 4300-7 Belt Guard 1
• MAIN COMPONENT POWER TRANSMISSION
• ENGINE GROUP
  • 1 4845 Rubber Bumper (1.0 x .625) 2
  • 2 4104-1 Body Support 1
  • 3 4013-1 Muffler Guard 1
  • 4 4104-9 Heat Shield/Aluminum 1
  • 5 NS 18 HP Engine (Briggs & Stratton 350447) 1
  • 6 4010-5 3/8 NPT Street L 1
  • 7 5020 Fuel Filter 1
  • 8 5879-3 Hose Clamp (1/2) 2
  • 9 5086-5 Hose (1/4 x 32) 1
  • 10 5086 Fuel Line (In Tank P/U) 1
  • 11 5083-1 Bushing, Rubber (Fits 5083) 1
  • 12 5083-2 Tank Tube Elbow 1
  • 13 5082-2 Fuel Cap Seal 1
  • 14 5082 Fuel Tank Cap 1
  • 15 4046 Fuel Tank, 3.0 Gal. Gas 1 (Fuel Cap Centered) (Includes Items # 13 & 14)
  • 16 5020-2 Fuel Filter, In Tank 1
  • 17 5975-3 Cable Tie (50# x 7") 2
  • 18 4108-1 Throttle/Choke Cable (56-1/2) 2
  • 19 5172 Bearing, Nylon (.255 ID x .379 OD x .250) 1
  • 20 5108-7 Control Lock Tab 2
  • 21 5108-10 Friction Washer (.125) 2
  • 22 5108-8 Control Bracket 2
  • 23 5108-1 Control Lever, Throttle/Choke 2
  • 24 5108-5 Throttle Control Knob/Red 1
  • 25 5108-6 Choke Control Knob/Black 1
  • 26 7108 Control Assembly 2
• ENGINE GROUP
• HYDROSTATIC GROUND DRIVE ASSEMBLIES
  • 1 4024-9 Reservoir Cap *
  • 2 4024 Oil Expansion Reservoir 2
  • 3 NS Nut 4
  • 4 4024-4 Oil Reservoir Mount/RH 1
  • 5 NS Washer 2
  • 6 4024-1 Oil Expansion Reservoir Elbow 2
  • 7 5879-3 Hose Clamp (1/2) 4
  • 8 5086-2 Hose (1/4 x 10-1/2) 2
  • 9 NS 90˚ Elbow 2
  • 10 4028-3 Hydro Lockout Rod 2
  • 11 4024-3 Oil Reservoir Mount/LH 1
  • 12 4300-4 Spring Mount Plate 1
  • 13 4349-4 Flanged Bearing 1
  • 14 4240 Drive Pulley (4-1/2A) 1
  • 15 4349-3 Hydro Drive Shaft 1
  • 16 4350-1 Flex Coupling Half (3/4 Bore) 1
  • 17 4350 Spider, Flexible Coupling 1
  • 18 4350-2 Flex Coupling Half (1" Bore) 1
  • 19 5841 Retainer Washer (3/8 x 1-1/4) 1
  • 20 4245 Idler Pulley (3/A) 1
  • 21 7201-5 Inner Race (2-1/4) 1
  • 22 7201-3 DU Bearing 1
  • 23 4349-5 Hydro Idler Arm 1
  • 24 5830 Grease Fitting 1
  • 25 5221 Extension Spring (3/4 x 4) 1
  • 26 4248 Ground Drive Belt 1
  • 27 4977 Grommet (1/2 x 13/16 x 3/16) 1
  • 28 4025 Hydro-Gear W/Charge Pump/LH 1
  • 29 4025-9 Parking Brake Arm Kit *
  • 30 4026 Hydro-Gear W/Charge Pump/RH 1
  • 31 4025-5 Hydro Oil Filter *
  • 32 7406-1 Handle Grip/Red 1
  • 33 4406-4 Parking Brake Arm Assembly 1
  • 34 4406-2 Brake Actuator Pull 1
  • 35 5665 Compression Spring (1/2 x 1) 1
  • 36 9406-4 Clevis Half 1
  • 37 9406-3 Clevis Half, Spring Side 1
  • 38 7523-2 Clevis Pin (1/4 x 5/8) 1
  • 39 5225-3 Return Spring (1/2 x 1.63) 1
  • 40 4406-7 Parking Brake End Mount 1
  • 41 4406-3 Parking Brake Mount Assembly 1
  • 42 4407-1 Park Brake Actuator Link 2
  • 43 5075 LP Wheel & Tire Assembly (18 x 8.50-10) 2
• HYDROSTATIC GROUND DRIVE ASSEMBLIES
• STEERING CONTROL ASSEMBLIES
  • 1 5862 FSC Knob 1
  • 2 4170 FSC Lever Assembly *
  • 3 5830 Grease Fitting 2
  • 4 5214-5 Ball Joint (5/16-24/LH) W/O Stud 1
  • 5 4173 FSC Rod 1
  • 6 5214-4 Ball Joint (5/16-24) W/O Stud 1
  • 7 4219 Extension Spring (3/4 x 6-1/2) 1
  • 8 4451-4 FSC Friction Actuator 1
  • 9 5214-2 Ball Joint (5/16-24) (Nylon Lined) 2
  • 10 4213 Hydro-Gear Control Rod 2
  • 11 9024 Washer (1/8 x 7/8) 2
  • 12 4212 Transmission Control Arm 2
  • 13 4215-2 Steering Lever Dampener 2
  • 14 5146 10mm Ball Stud 4
  • 15 4215 Steering Dampener Mount 1
  • 16 5214-3 Ball Joint (5/16-24 LH) (Nylon Lined) 2
  • 17 5830-3 Grease Fitting (45 Deg.) 1
  • 18 4451-1 Steering Pivot Shaft W/Stop 1
  • 19 9704-3 Pivot Rod Bushing/Plastic 2
  • 20 4142-2 FSC Friction Washer 1
  • 21 5141 FSC Friction Washer 1
  • 22 4142-1 FSC Cam 1
  • 23 4452-6 Steering Pivot (1/4-20 x 1-1/2) 2
  • 24 4451-3 Speed Control Actuator/LH 1
  • 25 5222 Extension Spring (1/2 x 3-1/4) 2
  • 26 5450 D-Clip 2
  • 27 4452-4 Steering Lever Tube W/Tab 2
  • 28 5453-10 Steering Lever Handle/Adj. 2
  • 29 5850-2 Handle Grip, Foam (5-1/2) 2
  • 30 4451-2 Speed Control Actuator/RH 1
  • 31 4199 Transmission Spring Assembly *
  • 32 4552 Ball Joint (1/4-28) 2
  • 33 5192-2 Spring Plunger (Female) 2
  • 34 5194 Plunger Sleeve 2
  • 35 5193 Washer (3/4 x 1 x .085) 2
  • 36 6191 Spring Slide (4-3/4) 2
  • 37 5195 Compress Spring (1 x 5-1/8) 2
  • 38 6196 Spring Slide Cap 2
• STEERING CONTROL ASSEMBLIES
• ELECTRICAL ASSEMBLY
  • 1 8960-15 Ignition Switch W/Keys 1
  • 2 4950 PTO Switch 1
  • 3 6941 Relay Switch 30/40AMP (NC) 1
  • 4 7941-3 Boot, Circuit Breaker 1
  • 5 7941-6 Circuit Breaker (15AMP) 1
  • 6 5942-1 Switch Boot (Fits P/N 5942) 2
  • 7 5942 Safety Switch (NO) 2
  • 8 5975-5 Wire Clip, Self-Mount 2
  • 9 8990-1 Hourmeter (Sendec) 1
  • 10 5835 Cable Clamp (3/4) 1
  • 11 6923 Battery Cable (-) 1
  • 12 4940-4 Battery Cable 12" (+) 1
  • 13 7832 Wire Clamp (13/16 x #10) 1
  • 14 4940-3 Starter Solenoid Cable (4-1/2") 1
  • 15 4929 Starter Solenoid 1
  • 16 4910 Battery (CCA/220) 1
  • 17 7854 Plastic Tip, Red 1
  • 18 8960-3 Key Set W/Umbrella 1
  • 19 4940 Wire Harness 1
• ELECTRICAL ASSEMBLY
• SPREAD TAIL WHEEL AXLE KIT
  • 1 7420-6 Washer (2-1/2) 1
  • 2 5841 Retainer Washer (3/8 x 1-1/4) 2
  • 3 4420-5 Mount, Spread Axle 1
  • 4 8769-8 Dust Cap, Deck Caster 2
  • 5 8769-6 Bearing Cone (1" ID) 4
  • 6 8769-5 Bearing Cup 4
  • 7 7420-4 Fork Mount Tube (Includes Item # 6) 1
  • 8 8769-7 Seal 2
  • 9 7420-2 Tail Fork, Spread Axle 2
  • 10 8039 Nut, Tail Wheel Axle 2
  • 11 8038-1 Spacer, Tail Wheel Axle 2
  • 12 8768-2 Seal, Reverse Lip 2
  • 13 8037 Bearing Cone (3/4 ID) 4
  • 14 8035 Tail Wheel & Tire Assembly (13 x 5.00-6) 2
  • 15 8037-1 Seal, Outer (1-3/4 x 1-1/8) 2
  • 16 7038 Tail Wheel Axle (3/4 x 5-9/16) 2
  • 17 7420-7 Pivot Shaft (1 x 5-1/4) 1
  • 18 5683 Pivot Bearing 2
  • 19 5830 Grease Fitting 3
• SPREAD TAIL WHEEL AXLE KIT
• WIRING SCHEMATIC
• LIMITED WARRANTY
• Sound - Model MB
• Vibration - Model MB
• Cover.pdf
  • OWNER’S MANUAL AND ILLUSTRATED PARTS MANUAL