Bobcat T140 Loader Service Manual – Early ACS Models (6904150)

Bobcat T140 Compact Track Loader Service Manual 6904150 (7-09)

This service manual provides thorough repair procedures, hydraulic and hydrostatic diagnostics, electrical troubleshooting, and full engine service for the Bobcat T140 Compact Track Loader. Designed for machines equipped with BICS™ and serial numbers 529311001 & Above, 531311001 & Above, and A8M511001 & Above, this technical resource supports comprehensive workshop maintenance.

Model Covers:

Bobcat T140 Compact Track Loader
S/N 529311001 & Above
S/N 531311001 & Above
S/N A8M511001 & Above
Equipped with BICS™ (Bobcat Interlock Control System)

File Format: PDF

Size: 24.90 MB

No. of pages: 774

Language: English

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

📑 Table of Contents Overview:

Maintenance & Safety Instructions

• Lift arm support, cab safety, fire prevention, remote start kits
• Lubrication charts, cooling, fueling, storage and return-to-service
• Service schedules, spark arrestor maintenance, pivot pin inspection

Hydraulic & Hydrostatic Systems

• Complete schematics, troubleshooting, and glossary of symbols
• Lift, tilt, Bob-Tach cylinder testing, valve disassembly and calibration
• Pumps, bypass valves, filters, reservoir and oil cooler procedures

Drive System & Undercarriage

• Track tension adjustment, roller, idler and sprocket removal
• Hydrostatic motor oil servicing, brake tests, belt replacement
• Drive system diagnostics, charge pressure testing and calibration

Main Frame & Cab Components

• Seat bar, suspension seat, lift arms, rear door, fuel tank service
• Cab windows, control panels (standard, ACS, SJC), pedals and levers
• Joystick and handle calibration, panel disassembly and diagnostics

Electrical System & Control Logic

• Wiring schematics, connector identification, alternator/starter testing
• BICS™ diagnostics, service code display, sensor inspection and testing
• ACS/SJC control integration, calibration, drift compensation

Engine Repair & Testing

• Fuel pump timing, injector testing, glow plug and valve clearance checks
• Cylinder head, crankshaft, camshaft, piston and bearing service
• Cooling and lubrication systems, thermostat, water and oil pump rebuild

Heater & HVAC System

• Blower fan, heater coil, heater valve servicing and troubleshooting
• Wiring connectors, diagnostics and electrical flow corrections

Specifications & Technical Data

• Loader specs, torque values, hydraulic system pressures, conversion charts
• Fuel and oil types, component tolerances, connector identification
• Full service tool requirements and revision index

The Bobcat T140 Service Manual is an essential reference for technicians handling diagnostics, calibration, engine rebuilds and advanced machine maintenance.

Note: This manual supports models with early versions of ACS and enhanced BICS™. For loaders using newer SJC drive controls, updated hydrostatic pumps, or machines with serial numbers A3L711001 and above, refer to:

• 6903153 (6-12) for legacy machines with standard BICS™ only.
• 6986569 (11-10) for mid-generation models with more advanced diagnostics.
• 6987041enUS (08-14) for fully upgraded systems and components specific to later A3L7/A3L8 units.