Description

Bobcat 175, 185 2006 Service Manual – Factory OEM Repair Specs for Skid-Steer Loaders

You have a Bobcat 175 or 185 on the lift, and the machine is down. Maybe the engine won’t start, or the hydraulic control valve is bypassing. Without a factory manual, you’re guessing on torque values, chasing wiring diagrams that don’t match, and burning billable hours. I have seen guys snap off a main relief valve adjusting screw because they used a generic spec. That part alone costs more than this manual. This Bobcat 175, 185 2006 Service Manual gives you the exact procedures that Bobcat dealer techs use. No aftermarket reprint, no photocopy—original OEM print. 726 pages of verified factory data. You want to do the job once, safely. Start here.

Engine Overhaul and Lubrication System – Kubota V2203 and V2003T

The engine section covers both the Kubota V2203-EB and the turbo V2003T-EB. You get oil change intervals, filter part numbers, and cooling system bleed procedures. The manual lists the coolant capacity—mix with distilled water. Checking engine oil? Page with the oil chart tells you exactly which viscosity to use. Replacing the oil filter: torque the canister to spec or you’ll get a leak. The chapter includes removing air from the fuel system after filter change. That saves you from cranking the starter until the battery dies.

Hydraulic/Hydrostatic Schematics – 726 Pages of Data

This manual holds the hydraulic system diagrams. You get the main relief valve adjustment procedure: turn the screw no more than half-turn increments, check pressure after each. The troubleshooting chart on the hydraulic system information page gives you pressure loss symptoms. Need to rebuild a lift cylinder? The disassembly and assembly steps are here, including seal replacement torque for the rod end pivot pin bushing. The BICS™ valve section—solenoid testing, lock valve removal—that information is not in any aftermarket manual. You mess with the BICS system without the factory procedure, you trip the interlock and the lift arms won’t move. I’ve seen it happen.

Fuel System and Air Cleaner Service – Don’t Skip the Schedule

Fuel specifications call for low-sulfur diesel. Filling the tank—stop the engine, clean around the cap. The manual gives you the air cleaner element check interval in hours. Replacing the filter element: don’t tap it to clean, replace it. The spark arrestor muffler cleaning procedure is there for those operating in fire-prone areas. Follow the service schedule chart in the safety and maintenance section to avoid clogged injectors.

Safety: Lift Arm Support Device and Fire Prevention

You never go under raised lift arms without an approved support device. The manual shows you exactly how to install and remove it. Fire prevention instructions: stop the engine, cool it down, clean flammable materials before checking fluids. This section is not filler—it is written because technicians have been killed bypassing these steps. Wear eye protection when working with battery acid or compressed springs. The manual states it plainly: never service the loader with the engine running unless instructed. I have watched a guy lose two fingers because he ignored that. Read it.

BICS™ Valve Diagnostics: Factory Procedure

The Bobcat Interlock Control System locks the hydraulics if the operator leaves the seat. The manual covers solenoid removal and testing with a multimeter. It gives you the BICS valve, lift arm by-pass orifice removal and installation steps. You want to check the check valve or lock valve? That section is in the hydraulic control valve chapter. The testing specs for the solenoid—resistance values—are on the page. Don’t use aftermarket diagrams that show the wrong pinout.

Source Validity – OEM vs Aftermarket

I have seen aftermarket manuals that claim to cover the Bobcat 175 and 185 but leave out the turbo engine variant. This one is printed by Bobcat Company in 2006. It includes both engine options, the high-flow auxiliary hydraulics, and the ACS control valve. The serial number breaks: 517625001 & Above for the 175, 518115001 & Above for the 185. If your loader falls under those ranges, this manual matches. There are no generic diagrams—every illustration is from the factory. The torque values are the same ones used on the assembly line. That matters when you are torquing wheel nuts or hydraulic fittings.

Audience: Who Needs This 726-Page Manual?

If you own a Bobcat 175 or 185 and do your own maintenance, this manual saves you from guessing. If you run a shop that services skid-steers, you need it on the bench. The step-by-step procedures cover everything from lifting and blocking the loader to towing it. The final drive transmission (chaincase) oil removal procedure is there. Fan gearbox checking and maintaining—torque specs for the bolts. Don’t rely on a YouTube video that shows a different model. Get the factory document.

• Related manuals: Bobcat S175 2008 Service Manual – OEM Factory Repair Specs
• Related manuals: Bobcat S185 2008 Service Manual – 998 Pages of Factory Specs
• Related manuals: Bobcat S70 2008 Service Manual – Factory Specs

For general knowledge on how a Manual Transmission works, see the external resource. If you need to understand the principles behind a Manual Transmission, that link explains the basics. But for the Bobcat, use the OEM manual.

Frequently Asked Questions

Does this manual cover the Kubota V2003T turbo engine?

Yes. The engine cooling system section includes separate subsections for both the Kubota V2203-EB and the V2003T-EB (turbo). The fuel system and lubrication instructions apply to both.

Are torque values in foot-pounds or inch-pounds?

Both. The manual uses imperial units. For example, wheel nut torque is specified in foot-pounds. Smaller fasteners like the breather cap may use inch-pounds. Always check the spec table before tightening.

Does this include wiring diagrams?

The PDF includes hydraulic/hydrostatic schematics. Electrical wiring diagrams are not listed in the table of contents. If you need electrical, check the Bobcat S175 2008 manual listed above.

How many pages cover the hydraulic control valve section?

Roughly 80 pages cover the foot control and ACS valves, including BICS valve, spool removal, and cleaning procedures. The lift arm by-pass control valve is also in that section.

Bottom line: if you are tearing down a Bobcat 175 or 185, get the right specs. Do not risk bending a valve or over-torquing a relief fitting. Access the Factory Manual now and keep it at your station. Your knuckles will thank you.