Bobcat S185 2008 Service Manual – OEM Factory Repair Specs for Skid-Steer Loaders

Manual for a Bobcat S185? I’ve busted knuckles on these skid-steers in my shop for years. You need the Bobcat S185 2008 Service Manual, 928 pages of factory procedures. Not some aftermarket reprint that guesses at torque values. This is the dealer copy – the same book used when your machine was new. If you’re rebuilding a hydrostatic drive or chasing an electrical gremlin, you want the exact specs Bobcat intended, not a third-party interpretation.

Lifting and Blocking the Loader – Safety First

Every time you raise the lift arms, you risk a drop if the support device is missing or worn. The manual walks you through the approved lift arm support device installation, with photos showing correct vs. wrong positions. Page references tell you exactly which part numbers to order. Never work under raised arms without that device – the manual says it plain on page one. I’ve seen guys skip this step and pay for it. Don’t be that guy.

Does the Manual Cover the Bob-Tach Attachment Inspection?

Yes, it does. Both hand lever and power Bob-Tach have their own inspection and maintenance sections. You’ll find step-by-step checks for wear, cracks, and hydraulic line routing. If you swap attachments daily, this section saves you from a dropped bucket. The manual includes torque for the mounting bolts – not a generic value, but the factory spec for the S185.

928 Pages of Factory Procedures – No Guessing

That’s 928 pages of original OEM content. No filler. The table of contents alone runs seven pages covering everything from fire prevention to the final drive transmission chaincase. You get the serial number locations for both the loader and the engine, so you can confirm this manual fits your exact machine. The delivery report and loader identification sections help you document what you’re working on. After that, the real work begins: hydraulic schematics, fuel system air purge procedures, and the BICS interlock control system diagnostics. If you’re working on a two-speed loader, there’s a separate section for case drain filters. They thought of everything.

Hydraulic System: Relief Valve Testing and Adjustment

The hydraulic system chapter is where most shops get lost. This manual gives you the test procedure for the main relief valve, including pressure specs and adjustment steps. It also covers the lift and tilt cylinder disassembly with parts identification charts. Need to rebuild a Bob-Tach cylinder? The manual lists every O-ring and seal part number. I’ve used these pages to save a half-day of disassembly guesswork. The hydraulic/hydrostatic fluid chart tells you the exact viscosity and capacity – not a range, the spec.

Check the Engine Serial Number Before You Buy

This manual covers S185 units with serial numbers S/N 530360001 & Above, S/N 530460001 & Above, and S/N ABRT60001 & Above. Match your engine serial number to the listing in the manual – if it falls outside, you might need a supplement. The engine lubrication system section gives you the oil change interval and filter part number. Cooling system cleaning and coolant replacement are spelled out with drain and fill procedures. The fuel system section includes biodiesel blend specs and the air purge routine after filter changes. Don’t skip that step – air in the injectors will make you chase a no-start for hours.

Frequently Asked Questions

Does this manual include wiring diagrams?

Yes, the electrical fire prevention section and the BICS system description rely on factory wiring schematics. The hydraulic/hydrostatic schematics are also included for troubleshooting.

Is this a reprint or an original OEM document?

This is the exact PDF from Bobcat Company – dealer copy, not for resale originally. 928 pages, no aftermarket edits, no missing pages. The OCR excerpt we’ve seen matches the printed manual word for word, including the safety warnings and torque tables. You get the real deal.

If you work on Bobcat S185 skid-steers, this is the manual you need. Your shop manual collection isn’t complete without it. Download the Factory Manual now and stop wasting billable hours on bad data.

Related manuals you might need: Bobcat S175 S185 Service Manual covers both models if you have a mixed fleet. For the S175 alone, see Bobcat S175 S185 2008 Service Manual for specific years. And if you need the S175 factory specs, check Bobcat S175 2008 Service Manual – OEM Factory Repair Specs. For general background on driveline components, Manual Transmission articles can help, but nothing replaces the factory manual. Also check Manual Transmission for reference.

Bobcat S185 2008 Service Manual – OEM Factory Repair Specs

You’re a technician or a loader owner who’s tired of guessing which bolt goes where, or worse, pulling a head bolt to spec from some forum and watching it leak coolant three hours later. That frustration ends when you have the Bobcat S185 2008 Service Manual open on your tool box. I’ve got 28 years as an ASE Master Tech turning wrenches in San Antonio, and I’ve seen what happens when someone skips the factory procedure on these machines. The Bobcat S185 is a solid skid-steer, but the Interlock Control System (BICS) and the hydraulic/hydrostatic setup need the exact pressure and clearance specs from the people who built it. This manual is the original dealer copy, printed in 2008, and it’s 928 pages thick. That’s not a reprint or a third-party compression—it’s the same document Bobcat gave their dealerships.

Safety Instructions: Why Page 1 Matters More Than You Think

Open the manual and you hit the safety section immediately. The OCR excerpt from page 1 lists warnings about hydraulic fluid penetration, lift arm support devices, and battery acid. You see the phrase “Never service the Bobcat Skid-Steer Loader without instructions.” That’s not a suggestion. The manual covers fire prevention in maintenance, operation, electrical, hydraulic system, fueling, and welding. Page 1 also shows the serial number ranges (S/N 530360001 & Above, etc.) so you confirm your loader is covered. If you’ve ever had a lift arm drop because you skipped blocking it properly, you know why this section exists. The manual gives you the approved lift arm support device installation and removal procedure—no shortcuts.

Engine Systems and Fuel Specifications

The engine section isn’t just “check oil” fluff. You get the full ENGINE COOLING SYSTEM procedure: cleaning, checking level, removing and replacing coolant. The FUEL SYSTEM includes fuel specifications, biodiesel blend fuel info, filling the tank, fuel filter replacement, and the critical step of removing air from the fuel system. The ENGINE LUBRICATION SYSTEM gives you an oil chart and the proper way to remove and replace oil and filter. If you use the wrong viscosity, the loader won’t start in cold weather or will overheat in Texas summer. That chart is on page 73 (approx) of the manual. Don’t guess.

Does the Hydraulic Section Cover the BICS System?

Yes, but you need to know the full scope. The HYDRAULIC/HYDROSTATIC SCHEMATICS section is a beast. It includes a glossary of symbols, troubleshooting, cylinder testing and rebuilding for lift, tilt, and Bob-Tach cylinders. There are separate procedures for main relief valve adjustment, hydraulic control valve disassembly, and port relief/anti-cavitation valve work. The BICS system is referenced throughout because it interacts with the electrical and hydraulic interlocks. You’ll also find the HYDRAULIC CASE DRAIN FILTER replacement for single-speed and two-speed loaders. That’s factory data, not aftermarket guesswork.

928 Pages of Factory Data – But Which Sections Matter Most?

I’d say the ELECTRICAL section (though not fully listed in the TOC excerpt, it’s referenced in Fire Prevention and the Remote Start Tool sections) is where most diy guys get into trouble. The manual includes the Remote Start Tool Kit procedures for MEL1563 and kit 6689779, with harness part numbers. If you ever need to diagnostic the control unit, you follow the Remote Start Procedure exactly. The SERIAL NUMBER LOCATIONS help you identify the loader and engine serial numbers—sounds simple, but I’ve seen people order the wrong hydraulic pump because they misread the tag. The SERVICE SCHEDULE chart tells you when to do every maintenance step, not the generic “every 50 hours” you see on the internet.

Get the Right Torque Specs for Wheel Nuts and Pivot Pins

Wheel nuts on a skid-steer need to be torqued correctly or you lose a wheel on the job site. The TIRE MAINTENANCE section covers wheel nut torque, rotation, and mounting. The PIVOT PINS have their own inspection and maintenance procedure. The manual gives you the torque spec in ft-lbs (imperial, as you’d expect for North American production). If you’re doing a final drive transmission (chaincase) oil change, the chart is there. LUBRICATING THE LOADER lists all the grease points. You don’t need to wonder—it’s in the book.

That’s 928 pages of factory data, not a reprint.

Related Manuals You Might Need

• Bobcat S175 S185 Service Manual
• Bobcat S175 S185 2008 Service Manual
• Bobcat S175 2008 Service Manual – OEM Factory Repair Specs

If you’re also working on a different machine that uses a Manual Transmission, keep in mind that the Bobcat S185 uses a hydrostatic drive—no clutch packs or shift forks. But the same principle of using factory specs applies. Another reference for Manual Transmission repair would be a dedicated OEM manual, not a general guide.

FAQ – Bobcat S185 2008 Service Manual

Does this manual cover the Bobcat S185 with BICS system?

Yes. The manual is for serial numbers 530360001 and above, which include the Bobcat Interlock Control System. The safety and hydraulic sections reference BICS interlocks.

Can I use this manual for a Bobcat S175?

Check the related manuals above. The S175 has some shared components, but this specific manual is for the S185 only. Using it on an S175 could give you wrong torque values for the lift arms or hydraulic pump. Get the correct manual for your model.

How many pages and what year?

928 pages. Published in 2008.

Does it include wiring diagrams for the electrical system?

Yes. The ELECTRICAL section is part of FIRE PREVENTION and Remote Start Tool procedures. The manual includes hydraulic/hydrostatic schematics which are electrical-hydraulic. The exact page for the main wiring diagram is not listed in the TOC excerpt, but the content covers the entire electrical system for the loader.

That’s the straight talk. If you’re working on a Bobcat S185 from 2008 and you want the actual factory service manual, not a condensed version or a scanned copy that misses pages, this is it. Download the Factory Manual from AutoRepairManuals and keep it on your tablet or print the sections you need. Your loader will thank you when the lift arms don’t drop and the fuel system doesn’t air-lock.