Description

Bobcat 329 2006 Service Manual

I’ve been turning wrenches for 28 years. Seen aftermarket manuals that guess at torque values and leave you chasing leaks. This Bobcat 329 2006 Service Manual is the real thing – factory-issued, 730 pages, printed by Bobcat Company in 2006 for dealer use. If you’re rebuilding a 329 compact excavator, you need the exact specs the factory uses. Not some rewritten PDF that skips the hydraulic schematic because it was too hard to scan. This one has everything: from the Manual Transmission basics to the full hydrostatic circuit.

Page 1 identifies it as the official service manual for Bobcat 329 S/N A2PG11001 and above, dealer copy. Page 3 gives you the safety warnings that save lives – and lawsuits. If you’re a DIY operator or a shop owner who wants to keep a 329 running without guessing, read on.

Lifting and Blocking the Excavator – Never Skip This

The manual’s “Safety and Maintenance” section starts with LIFTING AND BLOCKING THE EXCAVATOR. Procedure is step-by-step, with warnings about using correct lifting points and blocking capacity. I’ve seen too many guys drop a track because they didn’t follow the factory blocking instructions. Page 3 states: “Use the correct procedure to lift and support the excavator.” That’s not a suggestion – it’s the difference between a job done and a trip to the ER. The manual includes the UPPERSTRUCTURE SLEW LOCK operation and specific instructions for loading on a trailer. Don’t skip to the hydraulic section without reading this first.

Engine Lubrication System – Oil Specs and Filter Change

Under ENGINE LUBRICATION SYSTEM, the manual walks you through checking and adding oil, the oil viscosity chart, and the full replacement procedure. It tells you the exact oil filter part number (genuine Bobcat) and the correct torque for the drain plug. No guesswork. If you’re rebuilding the engine on a 329, you also get alternator belt adjustment and replacement – page numbers are in the index. The manual covers the cooling system, fuel system with bleeding instructions, and air cleaner service. Every fluid capacity is listed in quarts with imperial measurements.

Hydraulic System Troubleshooting – Cylinder and Swing Circuits

The hydraulic section is a beast. It opens with a glossary of hydraulic/hydrostatic symbols and then dives into troubleshooting the hydraulic circuit, cylinder circuit, swing (upperstructure slew) circuit, and travel circuit. Each cylinder – boom, arm, boom swing, bucket, blade – has its own testing, removal, parts identification, disassembly, and assembly procedures. The main relief valve and port relief valve testing and adjusting procedures are there. If you’re chasing a slow swing or a drooping boom, this manual gives you the pressure tests and adjustment specs. The control valve section breaks down each valve section: right travel, boom swing, boom, left travel, arm, bucket, auxiliary, boost, blade, and slew. That’s 10 individual disassembly and assembly procedures. You won’t find that level of detail in a Chilton’s.

Serial Number Locations – Know Your Machine

Before you order parts, you need the excavator serial number and engine serial number. The manual shows exactly where to find them – excavator serial number location and engine serial number. It also includes the delivery report and excavator identification. If you’re working on a 329 that’s been repainted or has worn tags, this section saves you the headache of guessing which revision you have. Also covered: the operator cab (ROPS/TOPS) with front window, wiper, washer reservoir, and HVAC duct descriptions. Transporting the excavator on a trailer – loading, unloading, and fastening – is documented with diagrams.

Source Authenticity: 730 Pages of Factory Specs

This is not an aftermarket reprint. The PDF is the original dealer copy, printed by Bobcat Company in 2006. Every torque value, every schematic, every safety warning is verified by the manufacturer. I’ve used aftermarket manuals that claimed “OEM specifications” but had wrong hydraulic pressure numbers – cost a shop two days and a blown pump. This one gives you the genuine Bobcat replacement part numbers and Service Safety Training Course references. The manual also includes the ALPHABETICAL INDEX so you can find any procedure in seconds. For related machines, check out the Bobcat 329 2008 Service Manual or the Bobcat S175 2008 Service Manual – OEM Factory Repair Specs and Bobcat S185 2008 Service Manual – 998 Pages of Factory Specs for skid-steer models. And for basic transmission theory, see Manual Transmission.

FAQ

Does this manual cover the entire Bobcat 329 compact excavator?

Yes. All systems: engine cooling, fuel, lubrication, hydraulics (including schematics), travel motors, spark arrestor, alternator belt, seat belt, pivot pins, and storage procedures.

Can I use this manual to rebuild the hydraulic pump myself?

If you have the tools and experience, yes. The manual includes removal and installation, coupler service, and parts identification for both the gear pump and piston pump. However, the safety instructions warn that some procedures are only for qualified Bobcat service personnel – specifically those not in the Operation & Maintenance Manual. The hydraulic pump testing procedures (piston pump, gear pump, auxiliary flow) are covered on multiple pages. You’ll need a pressure gauge set and the service safety training to do it right. I’d recommend reading the full troubleshooting section before pulling the pump. One wrong step on the crossport relief valves and you’ll be chasing pressure drops for days.

Bottom line: If you maintain or repair a Bobcat 329, you need factory data. Don’t rely on someone else’s interpretation. Access the Factory Manual today and get the exact procedures Bobcat dealerships use.