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Walker MDD User Manual
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OWNER’S MANUAL
Model MDD (
Diesel 16.5HP)
Model MDG (Gasoline 21.
0HP)
Safety
, Assembly
, Operating,
and Maintenance Instructions
Please Read and Save
These Instr
uctions
For Safety
, Read All Safet
y and Op
eration
Instruc
tions Pr
ior to Ope
rating M
achin
e
P/N 7000-1
Price $
5.00
2
Table of Contents
Table of Contents
3
General Information
5
Serial Numbers Location
6
Specifications
7
Product View and Component Identification
11
Engine View
13
Safety Instructions
15
Before Operating
15
Safe Operation
16
Safe Maintenance
17
Safety, Control and Instruction Decals
19
Assembly Instructions
21
Setup Instructions
21
Tire Installation
21
Battery Service
21
Mower Deck Assembly
22
Battery Charging
22
Battery Installation
22
Deck Caster Wheels Installation
22
Mower Deck Installation on Tractor
23
Deck Discharge Chute/Shield Installation
23
Installing PTO Quick Coupler
24
Deck Counterweight Spring Installation
25
Deck Levelling
25
Preoperating Checklist
26
Fill Fuel Tank
26
Operating Instructions
28
Controls
28
Engine Choke
28
Forward Speed Control (FSC)
29
Steering Levers
29
Blade Clutch (PTO)
29
Parking Brake
29
Front Body Latch Release
30
Transmission Lockout Levers
30
Cold Start Lever (Jackshaft Drive Belt Release)
30
MDD Operating Controls Diagram
31
MDG Operating Controls Diagram
32
Instrument Panel
33
Voltmeter
34
Water Temperature Gauge
34
Oil Pressure Warning Light
34
Ignition Switch
34
Starting the Engine (MDD)
35
Circuit Breakers
35
Warning Horn
35
Starting the Engine (MDG)
36
Operating Instructions
36
Adjusting Ground Speed and Steering
37
Engaging the Mower
38
Stopping the Machine
39
Adjusting Cutting Height
40
Transmission Lockout
40
Lockout Lever Positions
40
Recommendations for Mowing
41
Side Discharge Shield in Lowest Position
41
Maximum Recommended Side Slope
41
Grass Handling System (GHS) View
42
Blower Intake Cover
43
Clogging Checklist
44
Blade Rotation for GHS Mower Deck
44
Using the GHS Catcher
45
Cleaning the GHS Exhaust Screen
45
Dumping the Catcher
46
Catcher Door Safety Latch
46
Power Dump Option
47
Maintenance Instructions
49
Maintenance Schedule Chart
49
Tips for Care of the Engine
50
Fuel System
50
Cooling System
50
Air Cleaner
50
Lubrication
51
Engine Oil
51
Changing Engine Crankcsase Oil Level
51
Changing Engine Crankcase Oil/Oil Filter
51
Maintenance Instructions
51
Grease Fitting and Oil Point Lubrication
52
Chassis and Deck Lubrication Points
53
Mower Deck Gearbox Lubrication
54
Mower Deck Lubrication
54
Blade Spindle Lubrication
54
Tractor PTO Gearbox Lubrication
55
Gear Axle Lubrication
55
Hydrostatic Transmission Fluid
56
Transmission Reservoir and Air Bleed Plug Location
56
Engine Air Cleaner System
57
Cyclone Precleaner
57
Air Cleaner Dust Cup
57
Air Filter Element
58
Engine Cooling System
59
Grass Buildup in Mower Housing
59
Radiator Screen and Cooling Fins
59
Flushing Radiator and Changing Coolant
59
GHS Blower
60
Hydrostatic Transmission Cooling Fins Cleaning
61
Engine Cooling System Service
61
Coolant Level
61
Battery Care
62
Fan Belt Tension
62
Electrolyte Level
62
Charging the Battery
62
Tire Pressure
63
Sharpen Mower Blades
63
Drive Belts
64
Mower Deck Gearbox Oil Seals
64
Spark Plug
64
Fuel Lines and Clamps Check
65
Engine Valve Clearance
65
Fuel Injection Nozzle Pressure
65
Fuel Valve Solenoid
65
Replacing/Repairing
66
Blade Brake Action
66
Belt Locations
67
Jackshaft Drive Belt
68
Engine PTO Drive Belt (3 Groove Power Band)
69
GHS Blower Drive Belt
70
Hydrostatic Ground Drive Belt
71
Engine Fan Belt
72
Fuel Filter
73
Blade Overload Shear Bolts
73
Mower Blades Care
74
Mower Deck Gearbox Replacement
74
GHS Blower Assembly (And/Or Blower Wheel)
75
Blower Wheel Removal and Installation
76
Replacing Fuel Valve Solenoid
77
Safety Switches Adjustment
77
Tail Wheel Bearing Preload Adjustment
77
Blade Clutch (PTO) Adjustment
77
PTO Clutch Disengagement Adjustment
78
Clutch Linkage Adjustment
78
Transmission Control Adjustment
79
Set Forward Travel Limit (Stop)
79
Steering Lever End Play Adjustment
79
Neutral Function Adjustment
79
Forward Speed Control Function Lock
80
Sraight Ground Travel Adjustment
80
Fuel Valve Solenoid Linkage Adjustment
81
Electrical System Maintenance
84
Wiring Diagrams
85
5
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Walker MDD Specifications
General
Brand
Walker
Model
MDD
Category
Lawn Mower
Language
English
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