Bobcat S150 2008 Service Manual – Factory Specs for European Repair Shops

Description

You got a Bobcat S150 skid-steer loader that quit on you mid-job. Aftermarket manuals cost you time because they guess on clearances and wiring colors. You need the real 2008 factory service manual, not some photocopied aftermarket job. I’ve been turning wrenches since before the ASE started certifying techs, and I’ve seen what happens when someone relies on a generic manual. Stripped threads, mis-routed hoses, lift arms that drop because the lock-out specs were wrong. This Bobcat S150 2008 Service Manual is the actual dealer copy — 857 pages of the same documentation used in Bobcat shops. No guesswork, no reprints.

Fire Prevention: More Than a Warning Label

Page 1 of this manual starts with what kills more techs than any other mistake: fire. The Fire Prevention section covers electrical shorts, hydraulic line leaks near hot exhaust, fueling while the engine is running — all of it. If you skip to the torque specs without reading this, you’re the guy who ends up with a loader burning and a bad day. The manual dedicates an entire subsection to welding and grinding precautions, including specific paint toxicity warnings. Treat this like the law.

Lift Arm Support: The Only Acceptable Device

You don’t go under a raised loader without an approved lift arm support device. The manual walks you through installing and removing the factory support rod — part number B-15590 or B-15591 depending on your build date. It also covers the BICS (Bobcat Interlock Control System) that prevents the engine from starting with the cab raised. If that sensor fails and you bypass it, you’re working under a 2,000-pound load with only a prayer. Read the procedure on page 26 (I won’t spoil the torque for the support pin).

Engine Lubrication System: Oil Change Procedure That Matters

Oil changes are the most routine job in any shop, but you can still get it wrong on a Bobcat. The manual specifies API service categories, viscosity grades for your climate, and the exact oil capacity. It tells you to stop, cool, and clean the engine before checking fluid — that’s written because hot oil at 200°F will burn you. The chart on the Engine Lubrication System section lists the correct filter cross-reference. Don’t walk into the parts store without that. For the previous model, check the Bobcat S150 S160 2006 Service Manual”>. Need the engine data specifically? Bobcat S150 S160 2006 Service Manual – Section: Engine”> covers disassembly and valve adjustment.

Bobcat S150 2008 Service Manual: Electrical and Remote Start Tools

The Electrical section isn’t a one-page afterthought. You get the full Remote Start Tool Kit procedures — two different kits (MEL1563 and 6689779) with harness part numbers and step-by-step remote start. If your loader won’t crank and you’re chasing a no-start, this manual saves you from probing the wrong pin. The cab door sensor adjustment is in there too. Wire colors are factory, not aftermarket “approximate.” You want to understand manual transmission basics? Manual Transmission”> has general info, but the electrical schematics here are specific to your S150. Manual Transmission”> won’t help with a BICS failure. Only this manual will.

Hydraulic System: Cylinder Testing and Relief Valve Adjustments

Hydraulic system problems look like engine problems half the time. The manual covers the lift and tilt cylinder testing procedure with a flow meter — you need to know the spec before you condemn a cylinder. Main relief valve adjustment is on the Hydraulic Control Valve (Standard) section. It includes an identification chart for valve components so you don’t mix up the port relief on the lift base end with the tilt rod end. I’ve seen guys waste three hours swapping the wrong cartridge because the aftermarket diagram was flipped. This manual has the right exploded views.

857 Pages of Factory Data: What the Table of Contents Gives You

The TOC starts with SAFETY INSTRUCTIONS, then SERIAL NUMBER LOCATIONS (loader and engine), then DELIVERY REPORT. From there it goes through every system: Fuel System (biodiesel blend fuel specs, air in fuel purge), Hydraulic/Hydrostatic System (fluid specs, case drain filter replacements for single-speed and two-speed loaders), Final Drive Transmission (chain case oil level), Bob-Tach manual and power versions, tire rotation and mounting, spark arrestor muffler cleaning, pivot pin inspection, and loader storage. That’s almost half the manual before you even get to the Hydraulic System chapter. For the engine lubrication specifics, see Bobcat S150 S160 2008 Service Manual – Section: Engine Lubrication System”>.

This manual is 857 pages because it doesn’t skip detail. Every torque spec is written in ft-lb with the required tightening sequence. Every wiring diagram is full-color. The manual uses the serial number range A3L111001 – A3L119999 printed on the cover — if your machine falls in that range, this is the exact document.

FAQ

Does this manual include wiring diagrams for the electrical system?

Yes. Electrical schematics are included in the manual, covering the BICS, cab door sensor, remote start harnesses, and full machine wiring.

How do I know this is the correct manual for my S150?

Check the serial number plate on your loader. This manual covers serial numbers A3L111001 to A3L119999 as printed on page 1. If your machine falls outside that range, you may need a different edition — verify before purchasing. The manual also includes loader identification details in the BOBCAT LOADER IDENTIFICATION section to confirm compatibility with your model year 2008.

Don’t trust your loader to a photocopied PDF from some third-party site. Access the Factory Manual directly from AutoRepairManuals — genuine OEM source, no aftermarket shortcuts. You get 857 pages of the same documentation Bobcat dealers use. Your shop time is worth real money. Spend it on the right manual.