Description

Bobcat T140 2008 Service Manual

If you are working on a T140 and don’t have the factory specs in your hand, you are guessing. Guessing on a compact track loader with hydraulic pressures over 3000 psi gets expensive fast. This is the Bobcat T140 2008 Service Manual – 741 pages of the actual documentation Bobcat dealers use. Not a third-party reprint. Not a generic guide. The original OEM PDF, printed in 2008 for serial numbers A3L711001 through A3L819999. Every torque value, every wiring diagram, every bleed procedure came from the factory floor in Bismarck, North Dakota. If you have ever wasted an afternoon chasing a hydraulic leak because the aftermarket schematic had a mislabeled port, you understand why this matters.

What the Manual Covers: From Fire Prevention to Bob-Tach Maintenance

Look at the table of contents. It opens with a full section on Fire Prevention – not a generic warning, but specific procedures for electrical, hydraulic system, fueling, and even welding and grinding near the loader. That is the kind of real-world detail you need when you have a plasma cutter in a shop with hydraulic oil residue. Then it moves through safety maintenance: Lifting and Blocking the Loader with the exact procedure, Lift Arm Support Device installation and removal, and Operator Cab raising/lowering – all with the safety interlocks described. The manual does not assume you know how to prop a cab. It shows you.

Engine Lubrication System: OEM Specs You Can Trust

The Engine section covers the lubrication system with an oil chart, checking procedures, and filter replacement. No ambiguous “use appropriate oil” language. The manual lists the exact viscosity grades and capacities for the Kubota diesel in the T140. Same for the cooling system – cleaning, level check, coolant replacement. These are the steps Bobcat trained their techs on. When you are pulling a head on a hot Texas afternoon, you need the coolant bleed sequence right. Page references are there for each sub-procedure.

Hydraulic/Hydrostatic System: Diagnostics Without the Guesswork

This is where the manual pays for itself. The Hydraulic / Hydrostatic System chapter gives fluid charts, filter replacement intervals for the charge filter, case drain filters, and the breather cap. It includes the Hydraulic/Hydrostatic Schematics – actual diagrams with component callouts. Need to test the main relief valve? The manual gives you the test procedure, the adjustment steps, and the removal/installation. The Hydraulic Control Valve (Standard) section breaks down each spool – lift, tilt, auxiliary – with anti-cavitation valve removal and port relief valve adjustments. If you have ever had a port relief valve stick because of a wrong crush washer, you will appreciate the factory part identification chart.

Remote Start Tool Kit: Factory Diagnostics for BICS and ECU

Two remote start tool kits are detailed: one with part numbers MEL1563, MEL1565, MEL1566, and a later kit (6689779) with harnesses 6689747 and 6689746. The manual walks you through the remote start procedure step by step. This is not a hack – it is how you test the Bobcat Interlock Control System (BICS) without the engine running. The Electrical content includes the cab door sensor and the special applications kit. You do not get this level of diagnostic procedure from a Chilton or Haynes. You get it from the factory service manual.

3 Reasons to Buy the OEM Manual Over Aftermarket Copies

First, torque specs. Aftermarket manuals frequently round values or use generic ranges. The T140 manual lists exact ft-lbs for every bolt on the lift cylinder base end – not a range. Second, wiring diagrams. The aftermarket versions often combine schematics from multiple model years. This manual is specific to the 2008 T140 with the BICS system. Third, safety. The factory manual includes warnings like W-2003-0903: “Maintenance procedures not in the OMM must be performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL.” That kind of language does not appear in a $15 PDF from a no-name site. If you value your hands and your equipment, you use the OEM document.

Source Authenticity: Dealer-Only Documentation

This manual was originally marked “Dealer Copy – Not for Resale.” It came from the Bobcat distribution system. That means it carries the same specifications used by factory-trained techs at authorized dealerships. Compare that to the aftermarket “reprints” that copy the text but strip out the torque charts or print them at a resolution where you cannot read the fractional values. I have seen too many stripped bolts caused by a misread torque spec to trust anything except the original. The manual also includes the serial number range, so you know it matches your machine. Run the numbers before you buy.

Frequently Asked Questions

Does this manual cover the Bob-Tach system?

Yes. The manual includes inspection and maintenance procedures for both hand lever and power Bob-Tach, plus the cylinder removal and disassembly.

Are the electrical schematics included for the BICS system?

They are. The hydraulic schematics cover the BICS interlock, and the electrical troubleshooting steps reference the cab door sensor and the special applications kit wiring. This is factory-level detail.

What about the engine serial number location?

Page reference in the manual shows exactly where to find the loader serial number and engine serial number on the T140 chassis. You need that when ordering parts.

Can I use this manual for a different year T140?

This 2008 edition is written for serial numbers A3L711001 – A3L819999. Earlier or later machines may have different hydraulic valve configurations or BICS updates. You should match your serial number range to be safe. The Bobcat T140 2006 Service Manual covers a different range.

Before you reach for a crescent wrench and a prayer, get the right data on your screen. The Bobcat T140 2008 Service Manual gives you the factory procedure for every system – from the Engine lubrication to the Electrical diagnostics. It is 741 pages of documentation that saves you from buying parts you do not need and torquing things that should not be torqued. Pair it with the Bobcat Filter Reference Guide 2010 Parts Catalog for exact part numbers. If you also run a skid-steer, the Bobcat S175 2008 Service Manual – OEM Factory Repair Specs is built the same way. For general background on compact loader transmissions, see the Manual Transmission principles or Manual Transmission maintenance tips. Access the Factory Manual and print it for your shop binder – you will use it on every major repair.