Description

Bobcat 325, 328 2006 Operators Manual

If you’re the guy who thinks an operators manual is optional, you’re the reason I spend weekends fixing hydraulic lines that blew because someone guessed at the pressure setting. The Bobcat 325, 328 2006 Operators Manual is the factory book that tells you exactly what you need to run these excavators without drama. 137 pages, direct from Bobcat Engineering. No third-party guessing.

What This 137-Page Book Actually Covers

The manual breaks into six main sections. Foreword — ISO certification, nothing sexy. Safety — thirteen pages starting on page XIII that cover slope limits (25° down, 15° side), seat belt, ROPS, and why you never carry passengers. Operating Instructions from page 1 onward walk through daily startup, controls, and shutdown. Preventive Maintenance begins page 55 with service intervals. System Setup and Analysis on page 91. Specifications on page 97 — that’s where you find the numbers that matter.

Safety Warnings: Not Optional

Page XIII lists the safety alert symbol and warnings. It tells you: Never operate without training. Fasten seat belt. Do not swing heavy load over side of track. Max side slope 15°. These aren’t suggestions. I’ve seen an excavator tip because an operator ignored the 15° rule. The manual also shows correct and wrong ways to approach slopes — diagrams, not text. If you want to keep your machine upright, read this section.

Understanding how manual transmission principles apply to travel motors helps when diagnosing drive issues. For basics on gear engagement, see Manual Transmission. For gear ratio math, check Manual Transmission.

Preventive Maintenance Schedule for 325 and 328

Starting page 55, the manual lists daily, 50-hour, 100-hour, 250-hour, 500-hour, and 1000-hour checks. Engine oil, hydraulic oil, filters, track tension, pivot pin lubrication. The intervals are based on real wear data, not marketing. The manual also includes fluid capacities and grades. Saving a few bucks on the wrong oil will cost you a pump. This section alone has saved me more than one comeback because the owner actually followed the lube chart. Hydraulic system pressure checks are spelled out with test port locations and acceptable ranges — no guesswork. If you skip the 50-hour break-in inspection on a new machine, you’ll be replacing pins inside 200 hours. I’ve seen it happen. The manual also covers cold weather startup procedures for operators in northern climates. Every step is accompanied by a warning where needed. Stick to the schedule and your Bobcat 325 or 328 will see ten thousand hours before an overhaul.

Specifications: Torque, Pressures, and Capacities

Page 97 is the page you dog-ear. Engine specs, hydraulic system pressures, charge pressure, flow rates, torque values for track components and bucket pins. Without this page, you are working blind. I’ve seen guys use a generic torque chart and snap bolts on a swing motor. Use these numbers. They come from Bobcat’s test lab, not a forum.

Page 97 is the reason you buy this manual.

Why OEM Documentation Beats Aftermarket Rubbish

I’ve had customers show me aftermarket manuals that list the wrong hydraulic pressure for a Bobcat 328. That’s a blown seal in minutes. This operators manual is a direct scan of the original Bobcat publication, printed in 2006, with revision dates. Every number is traceable. The foreword says Bobcat is ISO 9001:2000 certified. That means their specs are controlled. Aftermarket? No control. If you want to trust your machine, trust the OEM.

Is this manual specific to the Bobcat 325 and 328 models?

Yes, it covers G Series with serial numbers 234111001 and above (325) and 234211001 and above (328).

What years does this operators manual cover?

The manual is published in 2006 but covers machines built from 2005 onward based on the revision dates. The specs remain valid for those models throughout their production run.

Can I use this manual for maintenance on my Bobcat 328?

Yes, it includes preventive maintenance schedules, fluid capacities, and inspection intervals.

Are there torque specifications in this manual?

Absolutely. Page 97 contains critical torque values for track components, bucket pins, and engine mounting bolts. Without factory spec torque you risk stripped threads or joint failure. The manual also lists hydraulic system pressures, charge pressures, and flow rates. These values are from Bobcat’s engineering, not a third-party guess. I’ve seen guys use aftermarket numbers and blow seals within a week. Stick with OEM.

You can get this manual as a PDF. Access the Factory Manual from AutoRepairManuals and keep it in your tablet or print it for the job site. Don’t rely on memory or guesswork. Your Bobcat 325 or 328 deserves the same specs the dealer uses.

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