Bobcat T140 Service Manual - ACS & SJC Loader Controls (6986569)

Bobcat T140 Compact Track Loader Service Manual 6986569 (11-10)

This technical service manual covers maintenance, hydraulic and hydrostatic repair, engine rebuild procedures, electrical troubleshooting, and full control system diagnostics for the Bobcat T140 Compact Track Loader. It is intended for machines equipped with BICS™, covering serial numbers A3L711001 - A3L719999 and A3L811001 - A3L819999. An essential resource for technicians and professional workshops.

Model Covers:

Bobcat T140 Compact Track Loader
S/N A3L711001 - A3L719999
S/N A3L811001 - A3L819999
Equipped with BICS™ (Bobcat Interlock Control System)

File Format: PDF

Size: 23.65 MB

No. of pages: 747

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

📑 Table of Contents Overview:

Safety & Preventive Maintenance

• Lift arm support, operator cab access, trailer transport, remote start procedures
• Service schedule charts, air filter, coolant, oil and fuel system maintenance
• Hydraulic/hydrostatic fluid servicing, spark arrestor, pivot pin checks

Hydraulic System Diagnostics

• Hydraulic schematics, control valves (standard, ACS, SJC), relief valve testing
• Lift, tilt and Bob-Tach cylinder service, diverter and solenoid valve operations
• Pump tests, bypass valve adjustments, reservoir, filter and cooler maintenance

Hydrostatic & Drive System

• Motor oil replacement, charge pressure testing, hydrostatic pump calibration
• Belt and tensioner pulley service, drive system adjustments and neutral tuning
• Track carriage inspection, idler, sprocket, roller replacement and tension setup

Mainframe & Structural Assembly

• Cab removal, ROPS, seat bar, fuel tank, control pedals and linkages
• Lift arm installation, door and rear grill, Bob-Tach disassembly (manual & power)
• Window replacement, striker adjustment and cab console shock service

Electrical System & Controllers

• Wiring diagrams, fuse & relay identification, alternator, starter and sensor testing
• BICS™ troubleshooting, joystick controls, keyless start programming
• Calibration (ACS & SJC), diagnostic service codes, backup alarm system

Engine Overhaul & Fuel System

• Engine removal, compression tests, oil pressure checks, valve clearance
• Injection pump timing, nozzle spray check, camshaft and crankshaft service
• Cooling system overhaul, fan motor service, water pump and thermostat repair

Cabin Heater & HVAC System

• Blower fan, heater coil, valve and connector servicing
• HVAC troubleshooting, air flow diagnosis and disassembly/assembly

Specifications & Technical Data

• Loader dimensions, engine specs, hydraulic capacities, torque settings
• Fitting specs, fluid types, conversion charts and bolt torque references
• Full revision history and system compatibility by serial number range

The Bobcat T140 Service Manual is a full-spectrum repair and diagnostic guide tailored for expert technicians servicing this model range.

Note: This manual is intended for mid-series Bobcat T140 units equipped with ACS and SJC joystick systems, detailed service codes, and advanced diagnostic tools. For compatibility with other serial number ranges or earlier/later generations, refer to:

• 6903153 (6-12) for base-model BICS machines.
• 6904150 (7-09) for early ACS-based loaders.
• 6987041enUS (08-14) for latest configurations (S/N A3L720001 & Above) including upgraded hydrostatic motors, updated solenoids, and enhanced instrumentation panels.