Bobcat MT50 MT52 MT55 Mini Track Loader Workshop Repair Service Manual PDF - MBOBCMTOPEK.zip

A full-service repair guide featuring complete electrical wiring schematics for the Bobcat MT50, MT52, and MT55 Mini Track Loaders, packed with the technical data needed to keep up, troubleshoot, fix, and service these machines the way a professional technician would.

The Bobcat MT50, MT52, and MT55 Mini Track Loader workshop service and repair manual contains:

* Numbered table of contents easy to use so that you can find the information you need fast.

* Detailed sub-steps expand on repair procedure information

* Numbered instructions guide you through every repair procedure step by step.

* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.

* Notes, cautions and warnings throughout each chapter pinpoint critical information.

* Bold figure number help you quickly match illustrations with instructions.

* Detailed illustrations, drawings and photos guide you through every procedure.

* Enlarged inset helps you identify and examine parts in detail.

6901508 (6-04) - MT50 Operation & Maintenance Manual.pdf

6901510 (3-06) - MT50 Mini Track Loader Service Manual.pdf

6901510 (6-12) - MT50 Mini Track Loader Service Manual.pdf

6902524 (10-04) - MT52 Operation & Maintenance Manual.pdf

6902525 (3-06) - MT52 Service Manual.pdf

6902525 (6-12) - MT52 Service Manual.pdf

6903371 (5-07) - MT55 Mini Loader Operation & Maintenance Manual.pdf

6903372 (5-07) - MT52, MT55 Service Manual.pdf

6903372 (10-12) - MT52, MT55 Service Manual.pdf

6903375 (5-07) - MT52 Mini Loader Operation & Maintenance Manual.pdf

6986856 (8-10) - MT52 Mini Loader Operation & Maintenance Manual.pdf

6986858 (3-10) - MT55 Mini Loader Operation & Maintenance Manual.pdf

6986859 (3-11) - MT52, MT55 Mini Track Loader Service Manual.pdf

6986859 (6-14) - MT52, MT55 Mini Track Loader Service Manual.pdf

6986859 (9-10) - MT52, MT55 Mini Track Loader Service Manual.pdf

Total Pages: 4,321 pages

File Format: PDF (bookmarked, Searchable, Printable, high quality)

Language: English

MAIN SECTIONSD

6901508 (6-04) - MT50 Operation & Maintenance Manual....1

OPERATOR SAFETY WARNINGS....3

CONTENTS....5

FOREWORD....7

BOBCAT COMPANY IS ISO 9001:2000 CERTIFIED....9

REGULAR MAINTENANCE ITEMS....9

MOTOR OIL....9

SERIAL NUMBER LOCATIONS....10

MINI LOADER SERIAL NUMBER....10

ENGINE SERIAL NUMBER....11

DELIVERY REPORT....11

MACHINE IDENTIFICATION....12

FEATURES, ACCESSORIES AND ATTACHMENTS....13

Standard Items....13

Options and Accessories....13

Attachments....13

SAFETY....15

SAFETY INSTRUCTIONS....17

Before Operation....17

Safe Operation Is The Operator?s Responsibility....18

Safe Operation Needs A Qualified Operator....18

Fire Prevention....19

MACHINE SIGNS (DECALS)....20

OPERATING INSTRUCTIONS....23

CONTROLS IDENTIFICATION....25

CONTROLS OPERATION....25

PARKING BRAKE....26

ENGINE SPEED CONTROL....26

OPERATION MODE SELECTOR....27

HYDRAULIC CONTROLS....28

Lift Arm Operation....28

Lift Arm Float Position [Figure OI-7]....28

Tilt Operation....28

Front Auxiliary Hydraulics....28

Releasing Hydraulic Pressure (Loader and Attachment)....29

Quick Couplers....29

LIFT ARM BY-PASS CONTROL....29

STEERING LEVERS....30

STOPPING THE BOBCAT LOADER....30

REVERSE STOP PANEL....30

DAILY INSPECTION....31

Daily Inspection and Maintenance....31

PRE-STARTING PROCEDURE....32

STARTING THE ENGINE....33

Cold Temperature Starting....34

Warming the Hydraulic System....34

STOPPING THE ENGINE....34

ATTACHMENTS AND BUCKETS....35

aTTACHMENTS AND bUCKETS (CONT?D)....36

Installing The Bucket Or Attachment....36

Removing The Bucket Or Attachment....37

OPERATING PROCEDURE....37

Inspect The Work Area....37

Driving On Rough Terrain And Over Curbs....37

Filling the Bucket....39

Emptying the Bucket....39

Leveling The Ground (Using Lift Arms In Float Position)....40

Digging Into the Ground....40

Backfilling....41

PARKING THE BOBCAT LOADER....41

TRANSPORTING THE BOBCAT LOADER....42

FOUR POINT LIFT....42

PREVENTIVE MAINTENANCE....43

MAINTENANCE SAFETY....45

SERVICE SCHEDULE....47

Chart....47

LIFT ARM SUPPORT DEVICE....48

Installing Lift Arm Support Device....48

Removing Lift Arm Support Device....48

TRACK TENSION....49

Adjusting The Tracks....49

ENGINE COVER....50

ALTERNATOR BELT....50

Adjusting The Alternator Belt....50

REAR DOOR....51

AIR CLEANER SERVICE....51

Replacing the Filter Element....51

FUEL SYSTEM....53

Fuel Specifications....53

Filling the Fuel Tank....53

Fuel Filter....54

Removing Air From The Fuel System....54

REVERSE STOP PANEL....55

Inspecting Function Of Reverse Stop Panel....55

Adjusting The Reverse Stop Panel....55

LIFT AND TILT FUNCTION LOCKOUTS....56

Inspecting Deactivation of Lift and Tilt Functions....56

LIFT ARM BY-PASS CONTROL....56

Inspecting The Lift Arm By-Pass Control....56

NEUTRAL START INTERLOCKS....57

Inspecting Traction Drive Interlocks....57

Inspecting Auxiliary Hydraulic Interlock....57

ENGINE LUBRICATION SYSTEM....57

Checking Engine Oil....57

Oil Chart....57

Replacing Oil And Filter....58

ENGINE COOLING SYSTEM....59

Checking The Coolant Level....59

Cleaning The Cooling System....60

Replacing the Coolant....61

SPARK ARRESTOR MUFFLER....62

ELECTRICAL SYSTEM....63

Description....63

Fuses [Figure PM-34]....63

Relays [Figure PM-34]& [Figure PM-33]....63

Cleaning Battery Terminals....64

Using A Booster Battery (Jump Starting)....64

Removing And Installing The Battery....65

HANDBAR ADJUSTMENT....66

HYDRAULIC SYSTEM....67

Checking And Adding Fluid....67

Replacing Hydraulic Filter....67

Hydraulic Breather Cap....67

Replacing Hydraulic Fluid....67

TRACK ROLLER AND IDLER LUBRICATION....68

LUBRICATION OF THE BOBCAT LOADER....69

PIVOT PINS....70

BOB-TACH....70

Inspection and Maintenance....70

PARKING BRAKE LUBRICATION....71

SPECIFICATIONS....73

MINI TRACK LOADER SPECIFICATIONS....75

Performance Specifications....75

Engine....75

Loader Controls....76

Drive System....76

Hydraulic System....76

Electrical System....76

Standard Instrument Panel....76

Capacity....76

ADDITIONAL PUBLICATIONS and TRAINING MATERIALS....77

WARRANTY....79

6901510 (3-06) - MT50 Mini Track Loader Service Manual....81

MAINTENANCE SAFETY....83

ALPHABETICAL INDEX....85

CONTENTS....87

FOREWORD....88

SAFETY INSTRUCTIONS....91

Fire Prevention....93

SERIAL NUMBER LOCATIONS....95

Loader Serial Number....95

Engine Serial Number....95

DELIVERY REPORT....95

BOBCAT LOADER INDENTIFICATION....96

SAFETY AND MAINTENANCE....97

LIFTING AND BLOCKING THE LOADER....99

Procedure....99

Four Point Lift....100

LIFT ARM SUPPORT DEVICE....101

Installing Lift Arm Support Device....101

Removing Lift Arm Support Device....101

TRANSPORTING THE BOBCAT LOADER....103

Procedure....103

TOWING THE LOADER....105

Procedure....105

SERVICE SCHEDULE....107

Chart....107

AIR CLEANER SERVICE....109

Replacing the Filter Element....109

ENGINE COOLING SYSTEM....111

Checking The Coolant Level....111

Cleaning The Cooling System....111

Replacing The Coolant....112

FUEL SYSTEM....113

Fuel Specifications....113

Filling The Fuel Tank....113

Fuel Filter....114

Removing Air From The Fuel System....114

ENGINE LUBRICATION SYSTEM....115

Checking Engine Oil....115

Oil Chart....115

Replacing Oil And Filter....115

HYDRAULIC SYSTEM....119

Checking And Adding Fluid....119

Replacing Hydraulic Filter....119

Hydraulic Breather Cap....119

Replacing Hydraulic Fluid....119

BOB-TACH....121

Inspection and Maintenance....121

LUBRICATION OF THE BOBCAT LOADER....123

Procedure....123

Pivot Pins....124

SPARK ARRESTOR MUFFLER....125

Servicing....125

HYDRAULIC SYSTEM....127

HYDRAULIC SCHEMATICS....131

HYDRAULIC SYSTEM INFORMATION....137

Workgroup Troubleshooting Chart....141

Hydraulic Function Troubleshooting....142

Hydraulic Drive Troubleshooting Chart....143

CYLINDER (LIFT)....145

Checking The Lift Cylinder(s)....145

Removal And Installation....145

Parts Identification....147

Disassembly And Assembly....148

CYLINDER (TILT)....151

Checking The Tilt Cylinder....151

Removal And Installation....151

Parts Identification....153

Disassembly And Assembly....154

MAIN RELIEF VALVE....157

Checking (Workgroup Hydraulic Control Valve)....157

Removal And Installation (Workgroup Hydraulic Control Valve)....159

Checking (Left Drive)....159

Adjustment (Left Drive)....161

Removal And Installation (Left Drive)....162

Checking (Right Drive)....163

Adjustment (Right Drive)....164

Removal And Installation (Right Drive)....165

PORT RELIEF VALVE....167

Checking The Port Relief Valves (Lift)....167

Adjusting The Port Relief Valves (Lift)....168

Removal And Installation (Lift)....169

Checking The Port Relief Valves (Tilt)....170

Adjusting The Port Relief Valves (Tilt)....171

Removal And Installation (Tilt)....172

HYDRAULIC CONTROL VALVE (DRIVE)....173

Removal And Installation....173

Disassembly....179

Assembly....197

HYDRAULIC CONTROL VALVE (WORK GROUP)....215

Removal And Installation....215

Disassembly....217

Assembly....239

HYDRAULIC PUMP (ALUMINMUM) (S/N 520611905 & Below)....259

Check The Output Of The Hydraulic Pump....259

Removal And Installation....260

Coupler Removal And Installation....261

Parts Identification....262

Disassembly And Assembly....263

Inspection....268

HYDRAULIC PUMP (CAST IRON) (S/N 520611906 & above)....269

Check The Output Of The Hydraulic Pump....269

Removal And Installation....271

Parts Identification....272

Disassembly And Assembly....273

HYDRAULIC FILTER....277

Housing Removal And Installation....277

HYDRAULIC FLUID RESERVOIR....279

Removal And Installation....279

DRIVE MOTOR....281

Removal And Installation....281

Parts Identification....283

Disassembly....284

Inspection....290

Assembly....292

COUNTERBALANCE VALVE....301

Removal And Installation....301

Disassembly And Assembly....302

SPEED CONTROL VALVE....303

Removal And Installation (S/N 520612036 & Below)....303

Removal And Installation (S/N 520612036 & Below) (Cont?d)....304

SPEED CONTROL VALVE....305

Removal And Installation (S/N 520612037 & Above)....305

Removal And Installation (S/N 520612037 & Above) (Cont?d)....306

Parts Identification....307

Disassembly And Assembly....308

SINGLE INLET MODE SELECT VALVE....311

Removal And Installation (S/N 520612036 & Below)....311

Parts Identification (S/N 520612036 & Below)....312

Disassembly And Assembly (S/N 520612036 & Below)....313

Removal And Installation (S/N 520612037 & Above)....316

Parts Identification (S/N 520612037 & Above)....317

Disassembly And Assembly (S/N 520612037 & Above)....318

DUAL INLET MODE SELECT VALVE....321

Removal And Installation (S/N 520612036 & Below)....321

Parts Identification (S/N 520612036 & Below)....322

Removal And Installation (S/N 520612037 & Above)....326

Parts Identification (S/N 520612037 & Above)....327

LIFT LOCK VALVE....331

Solenoid Testing....331