Description

Bobcat 337, 341 2008 Service Manual

Bobcat 337, 341 2008 Service Manual. I’m Mike Callahan, and I’ve torqued enough head bolts to know when a manual’s worth its weight in paper. This one is. 930 pages of factory documentation that came off the same line as the machines. If you’re pulling a hydraulic pump on a 337 or chasing an electrical gremlin on a 341, you don’t want some third-party rewrite. You want the actual procedure Bobcat used to train their techs. That’s what you’re getting here.

Hydraulic System Troubleshooting – What You Get

Go to the Hydraulic System section. There’s a full glossary of symbols for the schematics right at the start. Then troubleshooting flows for the cylinder circuit, the slew circuit, the travel circuit. Each one lists symptoms, probable causes, and the factory test sequence. For example, the boom cylinder testing procedure gives you the exact port relief valve pressure setting for the 341. No guesswork. That’s page 73 if you need the numbers now.

Engine Overhaul Coverage

Engine section covers everything from fuel system bleeding to the accessory drive belt adjustment. The lubrication system chapter gives the oil chart with viscosity grades by ambient temperature – the factory spec, not a general recommendation. And the cooling system cleaning procedure is spelled out step-by-step, including the coolant replacement interval from the 2008 service schedule chart.

7 Systems Covered

This manual breaks down seven major systems – engine, hydraulic, electrical, drive train, undercarriage, cab, and frame. The electrical portion alone includes wiring diagrams and component locations for the entire machine. Need to test the starter circuit on a 337? Follow the schematic. Want to adjust the belt tension on a 341? It’s in the Engine Accessory Drive Belt section. Each system has its own disassembly and assembly steps with torque values in foot-pounds.

Does This Manual Cover the Electrical System?

Yes – and it does it properly. The fire prevention chapter even has an electrical subsection warning about arc flash and battery gas. But the real meat is in the Safety and Maintenance section where you’ll find the diagnostic couplers for the hydraulic system – that’s where electrical and hydraulic cross paths. There’s also a full set of wiring diagrams for the 2008 model year, with color codes and connector pinouts. You can trace a short without burning a multimeter fuse.

Torque Specs and Fluid Capacities

Every fastener specification comes from the Bobcat factory – not a generic chart. The hydraulic pump section lists torque limiter adjustment values, the travel motor drain plug torque, and the wheel lug nut settings. Fluid capacities for hydraulic oil, engine oil, coolant, and fuel tank are given in quarts and gallons. Need the charge pressure for the pilot system? Look up the pressure reducing valve description – that’s on page 73.

Source Validity: OEM Factory Print

This is not a reprint from a third-party. The PDF you get is scanned from the original dealer copy – printed in 2008 by Bobcat Company in the USA. It includes the serial number ranges for both models: 337 S/N AAC811001 and above, 341 S/N A9W911001 and above. If you’ve ever been burned by a Chilton-style manual that said “refer to dealer” for the tricky part, you know why this matters. Bobcat wrote this for their own service personnel. It’s the same book that sits in the shop at the dealership.

FAQ – Common Questions

Can I find the drive belt tension specs for the 341 in this manual?

Yes – the Engine Accessory Drive Belt section gives the adjustment procedure and the deflection measurement in inches.

Does the manual include wiring diagrams for the 2008 Bobcat 337?

It does. The electrical schematics cover the starter, alternator, instrument panel, and all safety switches. You get the factory color codes and connector views. Some of these diagrams are folded pages in the original print – the PDF preserves them with zoom capability.

What is the page count?

930 pages. That’s your entire excavator from bumper to blade.

How do I use the hydraulic troubleshooting tables?

Start with the symptom table under Troubleshooting the Hydraulic Circuit. It lists common issues like slow cycle times or drift. Then cross-reference the schematic for the specific valve bank. The glossary of symbols on page 73 explains every icon you’ll see. Follow the test sequence in order – the manual is written so you don’t skip steps. If you hit a pressure test, the Port Relief Valve Pressure Setting section tells you the exact psi for the 337 and 341. Do not adjust a relief valve without reading that chapter first. You can cause seal blowout or component damage if you overshoot the spec.

This manual belongs on your bench, not in a drawer. It’s the difference between replacing a $400 valve block because you guessed at the pressure setting and actually diagnosing a stuck spool. The factory procedures are proven. You’re not a test subject. Bobcat 337 341 2007 Service Manual – Section: Horn”>Bobcat 337 341 2007 Service Manual – Section: Horn covers a related system, but this 2008 version includes all the updates. If you need the earlier model year, check Bobcat 337 341 2007 Service Manual”>Bobcat 337 341 2007 Service Manual. And for a skid-steer project, see Bobcat S175 2008 Service Manual – OEM Factory Repair Specs”>Bobcat S175 2008 Service Manual – OEM Factory Repair Specs. Looking for transmission info? Read about Manual Transmission”>Manual Transmission basics and Manual Transmission”>Manual Transmission maintenance elsewhere. But for this excavator, stop chasing bad information. Access the Factory Manual and start fixing right.