Bobcat 553 2006 Service Manual

If you’re pulling wrenches on a Bobcat 553 2006 Service Manual is what you need on the bench, not a . I’ve seen guys crack a hydrostatic pump housing because they used a aftermarket torque chart. That mistake costs shop time and parts. This 405-page OEM file gives you the factory sequence and the exact tighten procedures. There are 405 pages of content. That is not a reprint or a third-party summary. It’s the same binder the dealer techs use. For older machines, check Bobcat 553 1998 Service Manual. For the 2008 update with different emissions, see Bobcat 553 2008 Service Manual. But for this specific 2006 model, Bobcat 553 2006 Service Manual is the one.

405 Pages – From Foreword to Final Drive

The manual opens with safety instructions and serial number location. Page 1 tells you where to find the loader and engine serial numbers – always verify before ordering parts. The fire prevention section on page 3 is mandatory reading. You’ll find the lift arm support device procedure, the operator cab raise/lower steps, and the emergency exit method. Then it moves into the service schedule chart, air cleaner service, cooling system maintenance, and the engine lubrication system with an actual oil chart. Every procedure includes the required tool list and safety warnings. None of that generic ‘use appropriate tools’ fluff.

Hydraulic System Information – Tighten Procedures and Troubleshooting

Inside the Hydraulic System section you get schematics, a troubleshooting chart, and the tighten procedures for every fitting. The main relief valve checking procedure – both with and without auxiliaries – is spelled out. The hydraulic control valve section covers disassembly, assembly, load check valve, anti-cavitation valve, and port relief valve. Need to time a hydrostatic motor? That’s in the Hydrostatic System chapter, including the timing procedure and inspection steps. Charge pressure specs are given for the hydrostatic pump. I’ve used these numbers to save a customer from a premature pump failure. If you’re also working on a drivetrain, refer to Manual Transmission principles for general context, but stick to this manual for the Bobcat.

Safety Instructions – Fire Prevention and Lift Arm Support

Before you crack any hydraulic line, read the Safety and Maintenance chapter. It covers lifting and blocking the loader, installing the lift arm support device, and the seat bar restraint system inspection. The manual warns: “Never work on loader with lift arms up unless lift arms are held by an approved lift arm support device.” That is not optional. The Bobcat Interlock Control System (BICS) is covered too. If you bypass safety steps, you risk the loader dropping on you. The manual also includes the fire prevention section – cleaning the cooling system, spark arrestor muffler cleaning, and the proper fuel handling steps. Ignoring these can cost you more than a repair bill.

Engine Lubrication System – Oil Chart and Replacement

The Engine Lubrication System section gives you the oil chart for the Bobcat 553. It tells you the correct viscosity grades for different ambient temperatures. The procedure for replacing oil and filter is laid out step by step. Torque specs for the drain plug and filter housing are given in foot-pounds. Don’t guess. The Fuel System section covers fuel specifications, filling the tank, replacing the filter, and removing air from the system. The engine cooling system part tells you how to check coolant level, replace coolant, and clean the cooling system. All of these are vital for preventing downtime.

Bobcat 553 2006 Service Manual – The OEM Source

This is a factory document from Bobcat Company, printed in 2006. It covers S/N 520311001 & Above and S/N 520411001 & Above. The manual is not a reprint or a scanned copy with missing pages. It’s the exact 405-page PDF. If you need to diagnose a tilt lock valve issue, the disassembly and assembly procedure is in the Hydraulic System section. The lift arm by-pass control valve, the port block, and the oil cooler removal are all included. For drive system, the parking brake disk removal and traction lock guide are there. Every spec is verified. The Manual Transmission chapter in your library might give you general gear theory, but this manual gives you the Bobcat-specific numbers. Download the Factory Manual and keep it on your tablet or printed out. You’ll use it every time you touch a 553.

FAQ

Do I need to be a certified mechanic to use this manual?

No. But follow every safety warning.

What specific torque values are listed for the Bobcat 553’s hydraulic pump?

The manual covers the hydraulic pump removal, installation, disassembly, and assembly in the Hydrostatic System section. It includes the charge pressure check procedure, the replenishing valve function, and the drive coupler removal. The tighten procedures for all hydraulic lines and the main relief valve are given in foot-pounds and inch-pounds. Do not use aftermarket specs – they can be off by 20% and cause leaks or component damage. The manual also lists the port relief valve settings and the one-way restrictor inspections.

Download the Factory Manual. Keep it in your shop. It will pay for itself the first time you avoid a misdiagnosis.