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BOBCAT Trencher BT1090 BT2120 Service Manual 6990978 PDF DOWNLOAD
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BOBCAT Trencher BT1090 BT2120 Service Manual 6990978 PDF DOWNLOAD
(BT1090 Trencher) S/N B3B500101 & Above
(BT2120 Trencher) S/N B3B600101 & Above
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Description
BOBCAT Trencher BT1090 BT2120 Service Manual 6990978 PDF DOWNLOAD
FILE DETAILS:
BOBCAT Trencher BT1090 BT2120 Service Manual 6990978 PDF DOWNLOAD
Language : English
Pages : 116
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
BOBCAT Trencher BT1090 BT2120 Service Manual 6990978 PDF DOWNLOAD
(BT1090 Trencher) S/N B3B500101 & Above
(BT2120 Trencher) S/N B3B600101 & Above
MAINTENANCE SAFETY.......................................................... 3 CONTENTS.................................................................... 5 FOREWORD.................................................................... 7 SAFETY INSTRUCTIONS..................................................... 9 Safe Operation Is The Operator’s Responsibility..................... 9 Safe Operation Needs A Qualified Operator........................... 9 Use Safety Rules.................................................... 10 Call Before You Dig................................................. 10 Avoid Silica Dust................................................... 10 FIRE PREVENTION......................................................... 11 Maintenance......................................................... 11 Operation........................................................... 11 Electrical.......................................................... 11 Hydraulic System.................................................... 11 Fueling............................................................. 11 Starting............................................................ 11 Spark Arrester Exhaust System....................................... 11 Welding And Grinding................................................ 12 Fire Extinguishers.................................................. 12 PUBLICATIONS AND TRAINING RESOURCES..................................... 13 ATTACHMENT SIGNS (DECALS)............................................... 14 BT1090 Trencher..................................................... 14 BT2120 Trencher..................................................... 15 SERIAL NUMBER LOCATIONS................................................. 16 Attachment Serial Number............................................ 16 DELIVERY REPORT......................................................... 17 ATTACHMENT IDENTIFICATION............................................... 18 BT1090 Trencher..................................................... 18 BT2120 Trencher..................................................... 19 FEATURES AND ACCESSORIES................................................ 20 Standard Items...................................................... 20 Optional Items...................................................... 20 SAFETY AND MAINTENANCE...................................................... 21 TROUBLESHOOTING......................................................... 23 Chart............................................................... 23 DAILY INSPECTION........................................................ 25 Attachment Mounting Frame........................................... 25 Bob-Tach............................................................ 25 Chain Guide......................................................... 27 DAILY INSPECTION (CONT’D)............................................... 28 Lubrication Locations............................................... 28 Drive Assembly...................................................... 28 TRENCH CLEANER.......................................................... 29 Removal And Installation............................................ 29 Scraper Shoe........................................................ 29 HYDRAULIC SYSTEM............................................................ 31 HYDRAULIC MOTOR (BT 1090)............................................... 33 Removal And Installation............................................ 33 Parts Identification................................................ 34 Disassembly......................................................... 35 Inspection.......................................................... 39 Assembly............................................................ 40 Hydraulic Motor Timing.............................................. 42 HYDRAULIC MOTOR (BT 2120)............................................... 45 Removal And Installation............................................ 45 Parts Identification................................................ 46 Disassembly......................................................... 47 Inspection.......................................................... 49 Assembly............................................................ 50 Hydraulic Motor Timing.............................................. 53 MAINFRAME................................................................... 57 AUGER................................................................... 59 Removal and Installation............................................ 59 Adjustment.......................................................... 59 DIGGING CHAIN........................................................... 61 Removal And Installation............................................ 61 Adjustment.......................................................... 62 Tooth Removal And Installation...................................... 64 CHAIN PATTERNS (BT 1090)................................................ 65 Component Description............................................... 65 1-5/8 in Chain 32 Station 100 mm Wide Tooth Pattern Installation.... 67 1-5/8 in Chain 32 Station 150 mm Wide Tooth Pattern Installation.... 68 1-5/8 in Chain 32 Station 200 mm Wide Tooth Pattern Installation.... 69 CHAIN PATTERNS (BT 2120)................................................ 71 Component Description............................................... 71 2.0 in Chain 36 Station 150 mm Wide Tooth Pattern Installation...... 73 2.0 in Chain 36 Station 200 mm Wide Tooth Pattern Installation...... 74 2.0 in Chain 36 Station 250 mm Wide Tooth Pattern Installation...... 75 2.0 in Chain 36 Station 300 mm Wide Tooth Pattern Installation...... 76 DRIVE SPROCKET.......................................................... 77 Removal And Installation............................................ 77 BOOM.................................................................... 79 Removal And Installation............................................ 79 DRIVE ASSEMBLY (BT 1090)................................................ 81 Removal And Installation............................................ 81 Parts Identification................................................ 82 Disassembly......................................................... 83 Assembly............................................................ 85 DRIVE ASSEMBLY (BT 2120)................................................ 89 Removal And Installation............................................ 89 Parts Identification................................................ 90 Disassembly......................................................... 91 Assembly............................................................ 93 INNER BOOM.............................................................. 97 Removal And Installation............................................ 97 BOOM END WHEEL.......................................................... 99 Removal And Installation............................................ 99 Disassembly......................................................... 99 Assembly............................................................100 ATTACHMENT MOUNTING FRAME...............................................101 Manual Side Shift Adjustment........................................101 Removal And Installation............................................101 TRENCHER PLATE..........................................................103 Removal And Installation............................................103 Adjustment..........................................................103 SPECIFICATIONS..............................................................105 TRENCHER SPECIFICATIONS.................................................107 Dimensions..........................................................107 Performance.........................................................107 HYDRAULIC SYMBOLS FOR ATTACHMENTS.......................................109 HYDRAULIC SCHEMATIC.....................................................111 BT 1090 And BT2120..................................................111 TORQUE SPECIFICATIONS FOR BOLTS.........................................113 Torque For General SAE Bolts........................................113 Torque For General Metric Bolts.....................................114 ALPHABETICAL INDEX..........................................................115
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DESCRIPTION:
BOBCAT Trencher BT1090 BT2120 Service Manual 6990978 PDF DOWNLOAD
SAFETY INSTRUCTIONS
Use Safety Rules
• Read and follow instructions in the machine and the attachment’s Operation & Maintenance Manual before operating.
• Check for underground lines before operating attachment (if applicable).
• In addition to the design and configuration of equipment, hazard control and accident prevention are dependent upon the awareness, concern, prudence and proper training of personnel involved in the operation, transport, maintenance and storage of equipment.
• Check that the Bob-Tach™ levers are in the locked position and the wedges are fully engaged into the holes of the attachment (if applicable).
• Check that the attachment is securely fastened to the machine.
• Make sure all the machine controls are in the NEUTRAL position before starting the machine.
• Operate the attachment only from the operator’s position
. •Operate the attachment according to the Operation & Maintenance Manual.
• When learning to operate the attachment, do it at a slow rate in an area clear of bystander
• DO NOT permit personnel to be in the work area when operating the machine and attachment.
• The attachment must be used ONLY on approved machines. See your Bobcat dealer for updated list of approved attachments for each machine model.
• DO NOT modify equipment or add attachments that are not approved by the manufacturer.
• DO NOT make any adjustments or repairs on the machine or attachment while the engine is running.
• Keep shields and guards in place. Replace if damaged.
Avoid Silica
Dust Cutting or drilling concrete containing sand or rock containing quartz may result in exposure to silica dust. Do not exceed Permissible Exposure Limits (PEL) to silica dust as determined by OSHA or other job site Rules and Regulations. Use a respirator, water spray or other means to control dust. Silica dust can cause lung disease and is known to the state of California to cause cancer.
PLEASE NOTE:
- This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
- You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
- Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted
G.P
