Description

Bobcat S175, S185 Service Manual

I’ve seen more than a few loader repairs go sideways because a tech grabbed a PDF off some sketchy site and the torque values were wrong. If you’re working on a Bobcat S175 or S185, you need the actual factory service manual — not a copy of a copy. This OEM Service Manual from Bobcat is 48 pages long, and it covers every maintenance procedure you’ll run into: Engine lubrication, Cooling system, Fuel system, final drive Transmission, and the hydrostatic system. It tells you the exact procedure for bleeding air from the fuel lines, the correct coolant type, and the right filter part numbers. No guesswork.

Fuel System: When to Replace the Filter and Purge Air

Page 10-100-1 walks you through the fuel filter replacement and the air purge process. If you skip removing air from the system, you’ll be cranking that starter until the battery dies or you burn out the glow plugs. The manual shows the sequence — fill the tank, swap the filter, open the vent, and pump the primer. It also lists the fuel specifications so you don’t end up with summer fuel in winter.

How Often Should You Service the Engine Cooling System?

The cooling section on page 10-90-1 tells you to check coolant level every 10 hours, but the real meat is in the cleaning and replacement procedure. You need to drain, flush, and refill with the correct mix. The manual gives the capacity and the coolant type — not a generic “use 50/50”. It also warns against using stop-leak additives that can clog the radiator. Stick to what Bobcat says.

Hydraulic/Hydrostatic System Maintenance

The hydrostatic drive is what makes these loaders move. The manual covers checking and adding fluid, replacing the hydraulic filter, and changing the oil. It even tells you about the breather cap — a small part that gets overlooked, then you get pressure buildup and seal leaks. Page 10-120-1 has the procedure. You’ll need the correct fluid viscosity for San Antonio summers. Factory spec only.

Check the Final Drive Transmission Oil Before Every Shift

The chaincase (final drive transmission) has its own oil level check and change procedure. Look at section 10-130-1. If you ignore it, you’ll wear out the chains and sprockets. The manual tells you the fill level, the oil type, and how to drain without making a mess. For general background on how manual transmissions work, see Manual Transmission on Wikipedia, but for your Bobcat, trust the factory doc.

3 Reasons to Trust OEM Documentation Over Aftermarket

First, the torque values come from Bobcat engineers, not some third-party guess. Second, the wiring and hydraulic diagrams are accurate — no missing ground wires. Third, the safety warnings are explicit, like the lift arm support device on page 10-20-1. That section shows you exactly how to install and remove the support, so you don’t get crushed. Aftermarket manuals often skip these pages to save paper. This one doesn’t.

Lift Arm Support Device: Installing It Correctly

The lift arm support device is essential for any work under the arms. The manual has illustrated steps for installation and removal. Skipping this step is how people die. The procedure on page 10-20-1 is clear: block the loader, raise the arms, install the device, and pin it. Reverse for removal. No shortcuts.

Looking for other years or models? Check out Bobcat S175 S185 Service Manual for the same manual, Bobcat S175 S185 2008 Service Manual for the 2008 edition, or Bobcat S175 2008 Service Manual – OEM Factory Repair Specs for a tailored year. If you need general transmission theory, the same Wikipedia article Manual Transmission can give you an overview.

FAQ

Does this manual cover the S185 model?

Yes, it covers both S175 and S185 models.

What torque specs are included?

The manual includes factory torque values for wheel nuts, final drive bolts, and engine components. However, we don’t list them here because you need the manual to get the accurate numbers. Skipping torque specs on a loader can lead to bolt failure and serious injury. The manual specifies the exact values in ft-lbs, ensuring safe assembly. It also includes proper tightening sequences where critical, such as for the chaincase cover and the hydraulic filter housing. You can’t afford to guess on those.

Don’t risk a broken machine or a safety incident. Get the real deal and Access the Factory Manual now.