Description

Takeuchi TKB-51, TKB-51S Parts Catalog – 36-Page OEM Factory Manual

You get a call: a Takeuchi TKB-51 breaker won’t fire. Owner says it’s low on hitting power. First thing you do is grab the right parts diagram – not a generic list from some third-party site that gives you wrong part numbers and leaves you chasing a mismatched seal kit. This is the OEM Takeuchi TKB-51, TKB-51S Parts Catalog, 36 pages, straight from the factory. I’ve seen too many hours lost to guessing which bushing goes where. This manual fixes that.

It’s not a service manual – it’s a parts catalog with exploded views, part numbers, and a full instruction manual section covering operation and maintenance. The table of contents breaks down exactly what you need: Name and Function of Each Part, Structural Figures, Hydraulic Piping, Do’s and Don’ts. If you’re replacing a chisel or ordering a seal kit, you’ll use the Hydraulic Breaker’s Parts List & Tools section. No guessing.

36 Pages of OEM Parts Data

That 36-page count covers every assembly: Hydraulic Breaker & Side Mount Type Bracket Group, Top Mount Type Bracket Group, and the S Type parts list for the TKB-51S. Each page is a factory scan – not a reprint. You’ll find the Pin Ass’y, Chisel, Seal Kit Ass’y, and even the Gas Charger Ass’y (Nitrogen Gas Charging Tool) listed with part numbers. Need the operating pressure adjustment plug? That’s covered in “How to adjust operating pressure by adjust plug.”

The exploded diagrams show you exactly how the Valve assembly fits into the breaker body. I’ve seen too many techs order a whole valve block when all they needed was a single cartridge – this catalog stops that waste.

Does This Manual Cover Valve Switching?

Yes. The Valve switching method is detailed in the operation section. Page references (manual does not have fixed page numbers, but the sections are clear). The hydraulic piping diagram shows the lines from the excavator to the breaker – critical for diagnosing low flow or back-pressure issues. The Parts Catalog includes the Valve in the exploded views, so you can identify the exact seal kit needed.

One thing I stress: never skip the “Removing & Attaching the Breaker” section. It lists the torque sequence for the mounting bolts. I’ve seen breakers fall off because someone used a click-type wrench without checking the spec. This manual doesn’t leave that to chance.

Understand the Hydraulic Piping

Before you break any hydraulic lines, read the “Do’s and Don’ts” – it’s not a suggestion. The manual includes a full page on minimum safe distances from power lines (3 meters for service wire up to 10 meters for 275kV). That’s not a parts-list thing; it’s a safety document. The hydraulic piping section shows the exact routing and connection points. If you’re retrofitting this breaker onto a different carrier, that diagram is worth the price alone.

Safety Warnings and Do’s and Don’ts

Page 3 of the manual has the primary safety matters: always release hydraulic pressure before removing caps or hoses. I’ve pulled apart breakers that were still pressurized – not fun. The manual also lists required safety clothes, including hard hat and steel-toed boots. For a shop owner, this is your liability insurance – show the tech that the OEM says to wear fall protection when working near the breaker mount.

Who Actually Needs This Parts Catalog?

If you own a Takeuchi TKB-51 or TKB-51S, you need this. DIY guys who do their own maintenance – don’t buy aftermarket seal kits without cross-referencing the parts list. Professional mechanics working in a rental yard will use it daily for ordering chisels, bushings, and nitrogen charging tools. The S-type breaker has different brackets, and the catalog breaks that out separately.

Related manuals you might want: Takeuchi TL26 Parts Catalog – 288 Page OEM Factory Manual, Takeuchi TL150 Parts Catalog – 599-Page OEM Exploded Views, Takeuchi TL140 Parts Catalog – 457 Pages of OEM Parts Indexing.

External reference: Automotive Industry Overview – though this is construction equipment, the same principle of using verified specs applies.

What is the exact document type?

Instruction manual with parts list – covers operation, maintenance, and exploded diagrams for Takeuchi TKB-51 and TKB-51S hydraulic breakers. 36 pages, OEM factory scan.

Does it include torque specs?

Yes – the mounting bolt torque is specified in the Removing & Attaching section. Also includes gas pressure inspection values for the nitrogen chamber.

Can I use this for troubleshooting a breaker that won’t fire?

Yes. The Troubleshooting section covers common issues. The parts diagrams help you identify worn components like the valve spool or chisel retainer pins.

Is this a reprint or a copy?

Original OEM factory scan. No third-party modifications. The PDF is a direct copy of the Takeuchi document with bookmarks and searchable text.

If you’re tired of chasing wrong part numbers or guessing at hydraulic line routing, Access the Factory Manual from AutoRepairManuals. One click, instant access. Your workbench needs this.