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ZD21-EC
Kubota ZD21-EC User Manual
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ZD21N-EC, ZD21-EC, ZD28-
EC, WSM
SAFETY INSTRUCTIONS
· The following safety decals are installed on the machine.
If a decal
becomes d
amaged, illeg
ible or is
not on th
e machine,
replace it.
The decal
part numb
er is listed
in the parts lis
t.
SAFETY DECALS
KiSC issued 09, 2006 A
5
7
Table of Contents
General
13
Default Chapter
3
Safety First
3
Safety Decals
6
Specifications
9
Table of Contents
13
1 Identification
14
2 General Precautions
15
3 Handling Precautions for Electrical Parts and Wiring
16
Wiring
16
Battery
18
Fuse
18
Connector
18
Handling of Circuit Tester
19
4 Lubricants, Fuel and Coolant
20
5 Tightening Torques
22
General Use Screws, Bolts and Nuts
22
Stud Bolts
22
Metric Screws, Bolts and Nuts
23
American Standard Screws, Bolts and Nuts with Unc or Unf Threads
23
Plugs
23
6 Maintenance Check List
24
7 Check and Maintenance
26
Daily Check
26
Check Points of Initial 50 Hours
30
Check Point of Initial 100 Hours
32
Checking Points of Initial 200 Hours
33
Check Points of Every 50 Hours
35
Check Points of Every 100 Hours
39
Check Points of Every 150 Hours
44
Check Points of Every 200 Hours
44
Check Points of Every 400 Hours
46
Check Points of Every 1 Year
46
Check Point of Every 2 Years
49
Others
50
8 Special Tools
52
Special Tools for Engine
52
Special Tools for Machine
58
Servicing
63
1 Troubleshooting
64
2 Servicing Specifications[D782-E-Xfm5]
68
Engine Body
68
Lubricating System
72
Cooling System
72
Fuel System
73
3 Servicing Specifications[D1105-E2-Zd]
74
Engine Body
74
Lubricating System
78
Cooling System
78
Fuel System
79
4 Tightening Torques
80
5 Checking, Disassembling and Servicing
82
Separating Engine
82
Mechanism
139
1 Structure
140
2 Travelling System
141
Hydrostatic Transmission
141
Structure
141
Pump and Motor
142
Check Valve and High Pressure Relief Valve
143
Oil Flow
144
Power Trains Operation
146
Control Linkage
147
Final Reduction Gear Section
148
PTO System
149
Servicing
152
1 Troubleshooting
153
2 Servicing Specifications
155
3 Tightening Torques
156
4 Checking and Adjusting
157
5 Disassembling and Assembling
163
Separating Transaxle
163
6 Servicing
174
Hydrostatic Transmission
174
Transmission Case
176
Front Axle
178
Servicing
181
Troubleshooting
182
Servicing Specifications
183
Tightening Torques
184
Checking, Disassembling and Servicing
185
Checking and Adjusting
185
Disassembling and Assembling
186
Separating Front Wheel and Wheel Bracket
186
Hydraulic System
187
Mechanism
188
Hydraulic Circuit
189
Hydraulic Pump
190
Hydraulic Control Valve and Valve Adaptor
191
Lift Cylinder
194
Mower Linkage
195
Servicing
196
1 Troubleshooting
197
2 Servicing Specifications
198
3 Checking, Disassembling and Servicing
199
Hydraulic Control Valve, Pump and Cylinder
199
Checking and Adjusting
199
Disassembling and Assembling
199
Lift Cylinder
201
Disassembling and Assembling
201
Electrical System
202
Mechanism
203
1 Wiring Diagram
204
2 Starting System
208
Starter
210
Glow Plug
211
Safety Switch (Limit Switch)
211
Fuel Pump
212
Engine Stop Solenoid
212
Coolant Temperature Switch
212
3 Charging System
213
Ac Dynamo
214
Regulator
214
Easy Checker
215
4 Gauges
216
Fuel Quantity
216
Coolant Temperature
217
Servicing
218
1 Troubleshooting
219
2 Servicing Specifications
221
4 Checking, Disassembling and Servicing
223
Battery
223
Checking
223
Starting System
225
Checking
225
Disassembling and Assembling
230
Servicing
230
Charging System
233
Checking
233
Disassembling and Assembling
233
Servicing
234
Lighting System
235
Checking
235
Gauges
236
Checking
236
Rotary Mower
237
Lifting Mechanism
240
Troubleshooting
242
Servicing Specifications
243
Checking, Disassembling and Assembling
245
Checking and Adjusting
245
Disassembling and Assembling
248
4
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Kubota ZD21-EC Specifications
General
Brand
Kubota
Model
ZD21-EC
Category
Lawn Mower
Language
English
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