Bobcat 643 Operation & Maintenance Manual - PDF DOWNLOAD

Bobcat 643 Operation & Maintenance Manual - PDF DOWNLOAD

FILE DETAILS:

Bobcat 643 Operation & Maintenance Manual - PDF DOWNLOAD

Language : English
Pages : 90
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

Bobcat 643 Operation & Maintenance Manual - PDF DOWNLOAD

OPERATOR SAFETY WARNINGS 3
FOREWORD 5
CONTENTS 5
SAFETY INSTRUCTIONS 7
SAFETY IS YOUR RESPONSIBILITY 7
BEFORE YOU OPERATE THE BOBCAT LOADER 7
SAFE OPERATION NEEDS A QUALIFIED OPERATOR 8
FIRE PREVENTION 8
SERIAL NUMBER LOCATIONS 9
DELIVERY REPORT 9
BOBCT LOADER IDENTIFICATION 10
OPERATING INSTRUCTIONS 11
OPERATING INSTRUCTIONS 13
CONTROLS 14
SAFETY SIGNS (DECALS) 15
DASH PANEL 17
THROTTLE CONTROL 17
TO STOP THE ENGINE 17
PARKING BRAKE 17
STEERING LEVERS 18
HYDRAULIC CONTROLS 19
Foot Pedals (Hydraulic) 19
Lift Arm Operation 19
Float Position 19
Tilt (Bucket) Operation 19
Auxiliary Lever Operation 19
BEFORE YOU START THE ENGINE 20
STARTING THE ENGINE 21
Normal Starting Condition 22
Cold Temperature Starting Condition 23
ATTACHMENTS & BUCKETS 23
Installation Of Attachments 24
Installation Of Bucket 24
Removal Of Bucket 25
OPERATING PROCEDURE 25
Filling A Bucket 26
To Empty A Bucket 26
Digging Into The Ground 27
Making The Ground Level Using Float Postion 27
Filling A Hole 28
PARKING THE BOBCAT LOADER 28
TRANSPORTING THE BOBCAT LOADER 28
LIFTING THE BOBCAT LOADER 29
PREVENTIVE MAINTENANCE 31
WARNINGS 33
SERVICE SCHEDULE 35
LIFT ARM STOP 36
LIFTING THE OPERATOR CAB 36
LOWERING THE OPERATOR CAB 37
ROLLOVER & FALLING OBJECT PROTECTIVE STRUCTURE (ROPS & FOPS) 37
ENGINE SERVICE 38
Opening The Rear Door 38
Adjusting The Rear Door Latch 38
AIR CLEANER SERVICE 38
FUEL SYSTEM 39
FUEL SYSTEM SERVICE 39
FUEL FILTER 40
REMOVING AIR FROM THE FUEL SYSTEM 40
ENGINE LUBRICATION SYSTEM 41
REPLACEMENT OF ENGINE OIL AND FILTER 41
COOLANT LEVEL 42
REMOVING COOLANT FROM THE COOLING SYSTEM 42
BELT ADJUSTMENT 43
ELECTRICAL SYSTEM 43
USING AN EXTRA BATTERY (JUMP STARTING) 46
INSTALLING A NEW BATTERY 47
SPARK ARRESTOR MUFFLER 48
HYDRAULIC/HYDROSTATIC SYSTEM 49
REPLACEMENT OF THE HYDRAULIC FILTER ELEMENT 50
HYDRAULIC / HYDROSTATIC FLUID RESERVOIR 50
Checking And Adding Fluid 50
Removing The Hydraulic Fluid 51
FINAL DRIVE TRANSMISSION (CHAINCASE) 51
TIRE MAINTENANCE 51
Tire Rotation 52
Wheel Nuts 52
LUBRICATION OF THE BOBCAT LOADER 52
BOB-TACH 53
PIVOT PINS 53
BRAKE PEDAL ADJUSTMENT 54
AUXILIARY LOCKBOLT 54
TROUBLESHOOTING 55
TROUBLESHOOTING THE HYDRAULIC SYSTEM 57
TROUBLESHOOTING THE HYDROSTATIC SYSTEM 58
TROUBLESHOOTING THE ENGINE 59
MAJOR PARTS 61
MAIN FRAME 63
SRAT, PANELS & FUEL SYSTEM 64
DRIVE SYSTEM 65
BRAKES 66
CONTROL PEDALS 67
HYDRAULIC SYSTEM 68
HAND CONTROLS 69
OPERATOR CAB ELECTRICAL SYSTEM 70
ENGINE ELECTRICAL SYSTEM 71
ENGINE & ATTACHING PARTS 72
WARNING SIGNS 75
WARNING - 6565980 77
SERVICE SCHEDULE - 6567875 78
WARNING - 6563380 80
WARNING - 6561380 81
IMPORTANT - 6560573 82
GENERAL INFORMATION 83
643 LOADER SPECIFICATIONS 85
OPERATION & PERFORMANCE 85
ENGINE 85
LOADER HYDRAULICS 86
ELECTRICAL 86
DRIVE SYSTEM 86
CAPACITIES 86
TIRES 86
ADDITIONAL PUBLICATIONS 87
WARRANTY 89

DESCRIPTION:

Bobcat 643 Operation & Maintenance Manual - PDF DOWNLOAD

FOREWORD:

• This book is written to give the owner/operator necessary operating, servicing and preventive maintenance instruction for the Model 643 Bobcat loader.
• Read this manual completely and know the loader before operating and servicing it. To find a section, put thumb on the tab and turn pages until correct section is reached.
• For any extra information needed, see your Bobcat dealer.
• Do not do any service procedures that are not in the OPERATOR'S MANUAL! Only service personnel that have had training in service on the Bobcat loader can do the service procedures which are not in the Operator's Manual.
• If extra Parts Books, Service Manuals or Operator's Manuals are needed, they are available through the Bobcat dealer in your area for an added cost.

SAFETY INSTRUCTIONS:

A. SAFETY IS YOUR RESPONSIBILITY:

• The Skid Steer Loader is a highly maneuverable and compact machine. In operation, it is rugged and useful under a wide variety of conditions. This presents an operator with hazards which are common for off highway, rough terrain applications but are not unique for use of Bobcat loaders.
• The loader has an internal combustion engine with resultant heat and exhaust. All exhaust gases can kill so the loader must be used with adequate ventilation. The loader must not be used in an area with explosive dusts or gases or so that the engine exhaust can contact flammable material.
• The loader has a spark arrestor muffler which is required for operation in certain areas. For loader applications, the dealer recommends the capabilities and restrictions of the loader and attachments for each application. The dealer demonstrates the safe operation of the loader according to the manufacturer's instructional materials which are also available to all operators. The dealer can also identify unsafe modifications or use of unapproved attachments.
• The attachments and buckets are designed for rated capacity and secure fastening to the loader. For each model loader, the user must check with the dealer or manufacturer's literature to identify each bucket or attachment for safe loads of materials of specified densities.

The following publications provide information on the safe use of the loader and attachments: 1. The Delivery Report is used to check whether complete instructions have been given to the new owner.2. The Operator's Manual delivered with every loader gives operating information as well as routine maintenance and service.3. Every loader has machine signs (or decals) which instruct on the safe care and operation of the loader. The complete signs and their location are shown in the Operator's Manual. All signs are available from your Bobcat dealer.4. The loader has a plastic Operator Handbook fastened to the operator cab. It has brief operating instructions always available to the operator. The handbook is available from your Bobcat dealer in an English Edition or a combination English, French, German, Spanish edition.5. The Service Manual and Parts Book are optional manuals from your Bobcat dealer for use by mechanics to do shop-type service and repair work.

G.B 10/03/25