Bobcat 741 742 743 743DS Operation & Maintenance Manual – PDF DOWNLOAD
FILE DETAILS:
Bobcat 741 742 743 743DS Operation & Maintenance Manual – PDF DOWNLOAD
- 741 (S/N 501720001 & Above)
- 742 (S/N 501820001 – 501822999)
- 743 (S/N 501920001 & Above)
- 743DS (S/N 502551001 & Above)
Language : English
Pages : 102
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
Bobcat 741 742 743 743DS Operation & Maintenance Manual – PDF DOWNLOAD
- 741 (S/N 501720001 & Above)
- 742 (S/N 501820001 – 501822999)
- 743 (S/N 501920001 & Above)
- 743DS (S/N 502551001 & Above)
OPERATOR SAFETY WARNINGS 3
CONTENTS 5
REFERENCE INFORMATION 5
FOREWORD 7
SERIAL NUMBER LOCATIONS 9
LOADER SERIAL NUMBER 9
ENGINE SERIAL NUMBER 9
DELIVERY REPORT 9
BOBCAT LOADER IDENTIFICATION 10
SAFETY 11
SAFETY INSTRUCTIONS 13
SAFETY IS THE OPERATOR’S RESPONSIBILITY 13
BEFORE OPERATING THE BOBCAT LOADER 14
SAFE OPERATION NEEDS A QUALIFIED OPERATOR* 14
FIRE PREVENTION 15
MACHINE SIGNS (DECALS) 16
OPERATING INSTRUCTIONS 19
INSTRUMENT PANEL 21
One Piece 21
Three Piece 22
LEARNING THE CONTROLS 23
THROTTLE CONTROL 23
STOPPING THE ENGINE 23
CHOKE CONTROL (742 Only) 23
BATTERY DISCONNECT SWITCH (743 DS Only) 23
PARKING BRAKE 24
STEERING LEVERS 25
HYDRAULIC CONTROLS 26
Foot Pedals 26
Lift Arm Operation 26
Tilt Operation (Bucket) 26
Auxiliary Lever Operation 26
DAILY INSPECTION 27
GETTING READY FOR OPERATION 28
Getting On And Off The Loader 28
Safety Signs (Decals) 29
STARTING THE ENGINE 30
Normal Starting Condition 30
Cold Starting Condition 32
ATTACHMENTS AND BUCKETS 33
Installation And Removal 33
OPERATING PROCEDURES 35
Filling The Bucket 36
Emptying The Bucket 36
Digging Into the Ground 36
Leveling The Ground (Using Lift Arms In Float Position) 37
Backfilling 37
PARKING THE BOBCAT LOADER 38
TRANSPORTING THE BOBCAT LOADER 38
TOWING THE BOBCAT LOADER 39
LIFTING THE BOBCAT LOADER 40
PREVENTIVE MAINTENANCE 41
MAINTENANCE SAFETY 43
SERVICE SCHEDULE 45
LIFT ARM SUPPORT DEVICE 46
OPERATOR CAB 47
Raising The Operator Cab 47
Lowering The Operator Cab 48
SEAT BAR RESTRAINT SYSTEM 49
Inspecting The Seat Bar 49
Maintaining The Seat Bar 49
REAR DOOR 50
Opening The Rear Door 50
Adjusting The Rear Door 50
AIR CLEANER SERVICE 51
FUEL SYSTEM 53
Fuel Specifications 53
Filling The Fuel Tank 53
Fuel Filter (741,743 & 743DS Only) 54
Fuel Filter (742) 54
Removing Air From The Fuel System (741) 55
Removing Air From The Fuel System (743 & 743DS) 55
ENGINE LUBRICATION SYSTEM 56
Checking Engine Oil 56
Replacement Of Oil And Filter 57
COOLING SYSTEM 58
Checking The Coolant Level 58
Cleaning The Cooling system 58
Checking (743 DS) 59
Coolant Replacement 59
ALTERNATOR BELT 60
Adjusting The Alternator Belt 60
GOVERNOR (742) 61
Rod Adjustment 61
Governor Oil Level 61
CAB WIRING DIAGRAM 62
CAB WIRING DIAGRAM (Three Piece Instrument Panel) 63
ENGINE WIRING DIAGRAM (741) 64
ENGINE WIRING DIAGRAM (742) 65
ENGINE WIRING DIAGRAM (743) 67
ENGINE WIRING DIAGRAM (743DS) 68
ELECTRICAL SYSTEM 69
Description 69
Electrical System Service 69
Using An Extra Battery (Jump Starting) 69
Battery Replacement 70
Removing And Installing the Battery 71
HYDRAULIC / HYDROSTATIC FLOW CHART 72
BUCKET POSITION FLOW CHART 73
HYDRAULIC/HYDROSTATIC SYSTEM 74
Hydraulic/Hydrostatic Fluid Reservoir 74
Checking And Adding Fluid 74
Hydraulic/Hydrostatic Fluid Replacement 74
Hydraulic/Hydrostatic Filter Replacement 75
SPARK ARRESTOR MUFFLER 76
FINAL DRIVE TRANSMISSION (Chaincase) 77
TIRE MAINTENANCE 77
Tire Rotation 77
Tire Inflation 77
Tire Installation on Rim 78
Tire Pressure 78
Wheel Nuts 78
LOADER LUBRICATION 78
BOB–TACH 80
AUXILIARY CONTROL LOCKBOLT 80
PIVOT PINS 80
BRAKE PEDAL ADJUSTMENT 80
TROUBLESHOOTING 81
TROUBLESHOOTING THE ENGINE 83
TROUBLESHOOTING THE DRIVE SYSTEM 84
TROUBLESHOOTING THE HYDRAULIC SYSTEM 85
MACHINE SIGN TRANSLATIONS 87
IMPORTANT – 6560573 89
WARNING – 6579511 90
SERVICE SCHEDULE – 6567875 91
WARNING – 6579510 93
WARNING – 6579528 94
DANGER – 6579639 94
DANGER – 6579509 94
SPECIFICATIONS 95
LOADER DIMENSIONS 97
OPERATION & PERFORMANCE 97
ENGINE 97
HYDRAULIC SYSTEM 98
ELECTRICAL 98
DRIVE SYSTEM 98
CAPACITIES 98
TIRES 98
ADDITIONAL PUBLICATIONS 99
WARRANTY 101
DESCRIPTION:
Bobcat 741 742 743 743DS Operation & Maintenance Manual – PDF DOWNLOAD
- 741 (S/N 501720001 & Above)
- 742 (S/N 501820001 – 501822999)
- 743 (S/N 501920001 & Above)
- 743DS (S/N 502551001 & Above)
FOREWORD:
- This Operation & Maintenance Manual was written to give the owner/operator instructions on the safe operation and maintenance of the Bobcat loader.
- READ AND UNDERSTAND THIS OPERATION & MAINTENANCE MANUAL BEFORE OPERATING YOUR LOADER. If you have any questions, see your Bobcat loader dealer.
SAFETY INSTRUCTIONS:
SAFETY IS THE OPERATOR’S 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 associated with off highway, rough terrain applications. The loader has an internal combustion engine with resultant heat and exhaust.
- All exhaust gases can kill or cause illness so the loader must be used with adequate ventilation. The loader has a spark arrestor muffler which is required for operation in certain areas. The dealer explains the capabilities and restrictions of the loader and attachments for each application.
- The dealer demonstrates the safe operation of the loader according to Melroe’s instructional materials; which are also available to 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. The user must check with the dealer, or Melroe Company literature, to determine safe loads of materials of specified densities for his loader-attachment combination.
The following publications provide information on the safe use and maintenance of the loader and attachments:
• The Delivery Report is used to assure that complete instructions have been given to the new owner and that the machine is in safe operating condition.
• The Operation & Maintenance Manual delivered with the loader gives operating information as well as routine maintenance and service procedures. It is a part of the loader and must stay with the machine when it is sold. Replacement Operation & Maintenance Manuals can be ordered from your Bobcaf loader dealer. The loader has machine signs (decals) which instruct on the safe operation and care. The signs and their locations are shown in the Operation & Maintenance Manual. Replacement signs are available from your Bobcat loader dealer.
• The loader has a plastic Operator’s Handbook fastened to the operator cab. Its brief instructions are convenient to the operator. The handbook is available from your dealer in an English edition or one of the following languages: French, German, Italian, Dutch, Spanish, Portuguese, Finnish, Danish & Swedish.
• The EMI Safety Manual (available in Spanish) delivered with the loader gives general safety information.
• The Service Manual and Parts Manual are available from your dealer for use by mechanics to do shop-type service and repair work.
• The Skid-Steer Loader Operator Training Course is available through your local Bobcat dealer. This course is intended to provide rules and practices for correct operation of the Bobcat loader. The course is available in English and Spanish versions.
• The Bobcat Skid-Steer Loader Safety Video is available from your Bobcat Dealer.
G.B 10/03/25
