Kubota ZD18(F) • ZD21(F) ZD28(F) Zero Turn Mower Workshop Manual – PDF DOWNLOAD
DESCRIPTION:
Kubota ZD18(F) • ZD21(F) ZD28(F) Zero Turn Mower Workshop Manual – PDF DOWNLOAD
TO THE READER
This Workshop Manual has been prepared to provide servicing personnel with
information on the mechanism, service and maintenance of ZD18(F), ZD21 (F) and
ZD28(F) KUBOTA ZD Series ZERO-TURN MOWER. It is divided into two parts,
“Mechanism” and “Servicing” for each section.
■ Mechanism
Information on the Features and New Mechanisms are described. This information
should be understood before proceeding with troubleshooting, disassembling and
servicing.
■ Servicing
The heading “General” includes general precautions, check and maintenance and
special tools. Other section, there are troubleshooting, checking and adjusting,
disassembling and assembling, and servicing which cover procedures, precautions,
factory specifications and allowable limits.
- All information illustrations and specifications contained in this manual are based on
the latest product information available at the time of publication. - The right is reserved
to make changes in all information at any time without notice.
TABLE OF CONTENTS:
Kubota ZD18(F) • ZD21(F) ZD28(F) Zero Turn Mower Workshop Manual – PDF DOWNLOAD
TO THE READER…………………………………………………………………….. 2
SAFTY FIRST………………………………………………………………………. 3
…………………………………………………………………………….. 4
…………………………………………………………………………….. 5
SAFETY DECALS…………………………………………………………………….. 6
…………………………………………………………………………….. 7
…………………………………………………………………………….. 8
…………………………………………………………………………….. 9
…………………………………………………………………………….. 10
…………………………………………………………………………….. 11
SPECIFICATION…………………………………………………………………….. 12
…………………………………………………………………………….. 13
…………………………………………………………………………….. 14
…………………………………………………………………………….. 15
DIMENSIONS……………………………………………………………………….. 16
…………………………………………………………………………….. 17
GENERAL………………………………………………………………………….. 18
CONTENTS……………………………………………………………………… 19
1.IDENTIFICATION…………………………………………………………… 20
2.GENERAL PRECAUTIONS……………………………………………………… 21
3.HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING……………………. 22
[1]WIRING……………………………………………………………… 22
………………………………………………………………….. 23
[2]BATTERY…………………………………………………………….. 24
[3]FUSE……………………………………………………………….. 24
[4]CONNECTOR…………………………………………………………… 24
[5]HANDLING OF CIRCUIT TESTER…………………………………………. 25
4.LUBRICANTS, FUEL AND COOLANT……………………………………………. 26
……………………………………………………………………… 27
5.TIGHTENING TORQUES………………………………………………………. 28
[1]GENERAL USE SCREWS, BOLTS AND NUTS………………………………… 28
[2]METRIC SCREWS, BOLTS AND NUTS……………………………………… 28
[3]AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR UNF THREADS…. 29
6.MAINTENANCE CHECK LIST………………………………………………….. 30
7.CHECK AND MAINTENANCE…………………………………………………… 31
[1]DAILY CHECK………………………………………………………… 31
………………………………………………………………….. 32
………………………………………………………………….. 33
………………………………………………………………….. 34
[2]CHECK POINTS OF INITIAL 50 HOURS………………………………….. 35
………………………………………………………………….. 36
[3]CHECK POINT OF INITIAL 100 HOURS………………………………….. 37
[4]CHECKING POINTS OF INITIAL 200 HOURS………………………………. 38
………………………………………………………………….. 39
[5]CHECK POINTS OF EVERY 50 HOURS……………………………………. 40
………………………………………………………………….. 41
………………………………………………………………….. 42
………………………………………………………………….. 43
[6]CHECK POINTS OF EVERY 100 HOURS…………………………………… 44
………………………………………………………………….. 45
………………………………………………………………….. 46
………………………………………………………………….. 47
………………………………………………………………….. 48
[7]CHECK POINTS OF EVERY 150 HOURS…………………………………… 49
[8]CHECK POINTS OF EVERY 200 HOURS…………………………………… 49
………………………………………………………………….. 50
[9]CHECK POINTS OF EVERY 400 HOURS…………………………………… 51
[10]CHECK POINTS OF EVERY 1 YEAR…………………………………….. 51
………………………………………………………………….. 52
………………………………………………………………….. 53
[11]CHECK POINT OF EVERY 2 YEARS ……………………………………. 54
[12]OTHERS…………………………………………………………….. 55
………………………………………………………………….. 56
8.SPECIAL TOOLS…………………………………………………………… 57
[1]SPECIAL TOOLS FOR ENGINE…………………………………………… 57
………………………………………………………………….. 58
………………………………………………………………….. 59
………………………………………………………………….. 60
………………………………………………………………….. 61
………………………………………………………………….. 62
[2]SPECIAL TOOLS FOR MACHINE………………………………………….. 63
1.ENGINE…………………………………………………………………………. 64
NOTICE……………………………………………………………………….. 65
CONTENTS……………………………………………………………………… 66
1.TROUBLESHOOTING………………………………………………………….. 67
……………………………………………………………………… 68
……………………………………………………………………… 69
……………………………………………………………………… 70
2.SERVICING SPECIFICATIONS[D722-E-XFM5, D782-E-XFM5]…………………………. 71
[1] ENGINE BODY ………………………………………………………. 71
………………………………………………………………….. 72
………………………………………………………………….. 73
………………………………………………………………….. 74
[2] LUBRICATING SYSTEM…………………………………………………. 75
[3] COOLING SYSTEM ……………………………………………………. 75
[4] FUEL SYSTEM……………………………………………………….. 76
3. SERVICING SPECIFICATIONS[D1105-E-ZD]……………………………………… 77
[1] ENGINE BODY……………………………………………………….. 77
………………………………………………………………….. 78
………………………………………………………………….. 79
………………………………………………………………….. 80
[2] LUBRICATING SYSTEM…………………………………………………. 81
[3] COOLING SYSTEM…………………………………………………….. 81
[4] FUEL SYSTEM……………………………………………………….. 82
4. TIGHTENING TORQUES……………………………………………………… 83
……………………………………………………………………… 84
5. CHECKING, DISASSEMBLING AND SERVICING…………………………………… 85
[1] SEPARATING ENGINE………………………………………………….. 85
(1) Disassembling and Assembling……………………………………… 85
………………………………………………………………. 86
………………………………………………………………. 87
………………………………………………………………. 88
………………………………………………………………. 89
………………………………………………………………. 90
[2] ENGINE BODY……………………………………………………….. 91
(1) Checking and Adjusting…………………………………………… 91
………………………………………………………………. 92
………………………………………………………………. 93
(2) Disassembling and Assembling……………………………………… 94
………………………………………………………………. 95
………………………………………………………………. 96
………………………………………………………………. 97
………………………………………………………………. 98
………………………………………………………………. 99
……………………………………………………………….100
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……………………………………………………………….104
……………………………………………………………….105
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……………………………………………………………….107
……………………………………………………………….108
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(3) Servicing……………………………………………………….110
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……………………………………………………………….112
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……………………………………………………………….128
……………………………………………………………….129
……………………………………………………………….130
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……………………………………………………………….132
……………………………………………………………….133
[3] LUBRICATING SYSTEM………………………………………………….134
(1) Checking……………………………………………………….134
(2) Servicing……………………………………………………….134
……………………………………………………………….135
[4] COOLING SYSTEM……………………………………………………..136
(1) Checking and Adjusting……………………………………………136
……………………………………………………………….137
(2) Disassembling and Assembling………………………………………138
[5] FUEL SYSTEM………………………………………………………..139
(1) Checking and Adjusting……………………………………………139
……………………………………………………………….140
……………………………………………………………….141
(2) Disassembling and Assembling………………………………………142
2.TRANSAXLE……………………………………………………………………….143
CONTENTS………………………………………………………………………144
1. STRUCTURE……………………………………………………………….145
2. TRAVELLING SYSTEM……………………………………………………….146
[1] HYDROSTATIC TRANSMISSION…………………………………………….146
(1) Structure……………………………………………………….146
……………………………………………………………….147
(2) Pump and Motor…………………………………………………..148
(3) Check Valve……………………………………………………..148
(4) Check and High Pressure Relief Valve……………………………….149
(5) Oil Flow………………………………………………………..150
……………………………………………………………….151
……………………………………………………………….152
(6) Power Trains Operation……………………………………………153
……………………………………………………………….154
(7) Control Linkage………………………………………………….155
(8) Final Reduction Gear Section………………………………………156
(9) PTO System……………………………………………………..157
……………………………………………………………….158
……………………………………………………………….159
CONTENTS………………………………………………………………………160
1. TROUBLESHOOTING………………………………………………………….161
………………………………………………………………………162
2. SERVICING SPECIFICATIONS…………………………………………………163
3. TIGHTENING TORQUES………………………………………………………164
4. CHECKING AND ADJUSTING………………………………………………….165
………………………………………………………………………166
………………………………………………………………………167
………………………………………………………………………168
………………………………………………………………………169
………………………………………………………………………170
5. DISASSEMBLING AND ASSEMBLING…………………………………………….171
[1] SEPARATING TRANSAXLE………………………………………………..171
…………………………………………………………………..172
…………………………………………………………………..173
…………………………………………………………………..174
…………………………………………………………………..175
…………………………………………………………………..176
…………………………………………………………………..177
…………………………………………………………………..178
…………………………………………………………………..179
…………………………………………………………………..180
…………………………………………………………………..181
6. SERVICING……………………………………………………………….182
[1] HYDROSTATIC TRANSMISSION…………………………………………….182
…………………………………………………………………..183
[2] TRANSMISSION CASE…………………………………………………..184
…………………………………………………………………..185
3.FRONT AXLE………………………………………………………………………186
CONTENTS………………………………………………………………………187
1. STRUCTURE……………………………………………………………….188
CONTENTS………………………………………………………………………189
1. TROUBLESHOOTING………………………………………………………….190
2. SERVICING SPECIFICATIONS…………………………………………………191
3. TIGHTENING TORQUES………………………………………………………192
4. CHECKING, DISASSEMBLING AND SERVICING……………………………………193
[1] CHECKING AND ADJUSTING……………………………………………..193
[2] DISASSEMBLING AND ASSEMBLING………………………………………..194
(1) Separating Front Wheel and Wheel Bracket……………………………194
4.HYDRAULIC SYSTEM…………………………………………………………………195
CONTENTS………………………………………………………………………196
1. HYDRAULIC CIRCUIT……………………………………………………….197
………………………………………………………………………198
2. HYDRAULIC PUMP………………………………………………………….199
3. HYDRAULIC CONTROL VALVE AND VALVE ADAPTOR………………………………200
………………………………………………………………………201
………………………………………………………………………202
4. LIFT CYLINDER…………………………………………………………..203
5. MOWER LINKAGE…………………………………………………………..204
CONTENTS………………………………………………………………………205
1. TROUBLESHOOTING………………………………………………………….206
2. SERVICING SPECIFICATIONS…………………………………………………207
3. CHECKING, DISASSEMBLING AND SERVICING……………………………………208
[1] HYDRAULIC CONTROL VALVE, PUMP AND CYLINDER…………………………208
(1) Checking and Adjusting……………………………………………208
(2) Disassembling and Assembling………………………………………208
……………………………………………………………….209
[2] LIFT CYLINDER………………………………………………………210
(1) Disassembling and Assembling………………………………………210
5.ELECTRICAL SYSTEM………………………………………………………………..211
CONTENTS………………………………………………………………………212
1. WIRING DIAGRAM………………………………………………………….213
………………………………………………………………………214
………………………………………………………………………215
………………………………………………………………………216
2. STARTING SYSTEM…………………………………………………………217
………………………………………………………………………218
[1] STARTER…………………………………………………………….219
[2] Glow Plug…………………………………………………………..220
[3] SAFETY SWITCH (LIMIT SWITCH)……………………………………….220
[4] FUEL PUMP………………………………………………………….221
[5] ENGINE STOP SOLENOID……………………………………………….221
3. CHARGING SYSTEM…………………………………………………………222
[1] AC DYNAMO………………………………………………………….223
[2] REGULATOR…………………………………………………………..223
[3] EASY CHECKER……………………………………………………….224
4. GAUGES………………………………………………………………….225
[1] FUEL QUANTITY………………………………………………………225
[2] COOLANT TEMPERATURE…………………………………………………226
CONTENTS………………………………………………………………………227
1. TROUBLESHOOTING………………………………………………………….228
………………………………………………………………………229
2. SERVICING SPECIFICATIONS…………………………………………………230
3. TIGHTENING TORQUES………………………………………………………231
4. CHECKING, DISASSEMBLING AND SERVICING……………………………………232
[1] BATTERY…………………………………………………………….232
(1) Checking………………………………………………………..232
……………………………………………………………….233
[2] STARTING SYSTEM…………………………………………………….234
(1) Checking………………………………………………………..234
……………………………………………………………….235
……………………………………………………………….236
……………………………………………………………….237
……………………………………………………………….238
(2) Disassembling and Assembling………………………………………239
(3) Servicing……………………………………………………….239
……………………………………………………………….240
……………………………………………………………….241
[3] CHARGING SYSTEM…………………………………………………….242
(1) Checking………………………………………………………..242
(2) Disassembling and Assembling………………………………………242
(3) Servicing……………………………………………………….243
[4] LIGHTING SYSTEM…………………………………………………….244
(1) Checking………………………………………………………..244
[5] GAUGES……………………………………………………………..245
(1) Checking………………………………………………………..245
6.ROTARY MOWER…………………………………………………………………….246
CONTENTS………………………………………………………………………247
1. POWER TRANSMISSION………………………………………………………248
2. LIFTING MECHANISM……………………………………………………….249
CONTENTS………………………………………………………………………250
1. TROUBLESHOOTING………………………………………………………….251
2. SERVICING SPECIFICATIONS…………………………………………………252
3. TIGHTENING TORQUES………………………………………………………253
4. CHECKING, DISASSEMBLING AND ASSEMBLING…………………………………..254
[1] CHECKING AND ADJUSTING……………………………………………..254
…………………………………………………………………..255
…………………………………………………………………..256
[2] DISASSEMBLING AND ASSEMBLING………………………………………..257
…………………………………………………………………..258
…………………………………………………………………..259
…………………………………………………………………..260
…………………………………………………………………..261
…………………………………………………………………..262
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