Description

Takeuchi TKB-301, TKB-301S Parts Catalog – 36 Pages of Factory Specs for Hydraulic Breaker

If you are chasing a parts number on a hydraulic breaker and you do not have the factory breakdown, you are burning hours and risking ordering the wrong seal kit or valve. I have seen guys guess at a chisel pin size and end up with a cracked bushing because the aftermarket diagram was off by 2 mm. This Takeuchi TKB-301, TKB-301S Parts Catalog gives you the exact exploded views and part numbers straight from Takeuchi. No third-party redraws. No guessing whether that bracket group is TB045 or TB55UR. It is all there in 36 pages.

36 Pages of OEM Parts Breakdown

The manual starts with the name and function of each part and a structural figure showing hydraulic piping (page 2). From there you get the parts lists for the hydraulic breaker, the top mount bracket group, the flange type bracket, and the S-type breaker. Page 21 has the breaker parts list and tool list. Page 22 through 26 cover every bracket variant: TB045, TB55UR, box-S type. If you need the seal kit assembly or the service tool gas charger, those option pages are on page 27 and 28. The catalog ends with specifications on page 29. That is the kind of indexing that keeps you from flipping through a 200-page generic book looking for one bolt.

Does This Parts Catalog Cover the TKB-301S Valve System?

Yes. The Takeuchi TKB-301S is a variation of the standard TKB-301 with a different bracket group and some internal differences. The manual dedicates page 24 and 25 to the S-type breaker parts list and tool list. The valve switching method is on page 7. If you are dealing with a breaker that will not fire or drops its cycle, the valve section in the troubleshooting (page 18) walks you through hydraulic pressure checks before you pull the valve body apart. Do not skip that step. I have seen too many guys replace a $400 valve assembly only to find a blocked return line.

2 Critical Safety Sections You Can’t Skip

Page 4 prints the Do’s and Don’ts. That is where you find the minimum safe distance from power lines — 3 meters for 6,600 V, up to 10 meters for 275,000 V. If you are running a breaker near overhead lines, that table is not optional reading. The manual also covers safety clothes, removing hydraulic parts under pressure, and what to do about falling objects. The warning on page 1 says improper use may cause serious injury or death. Take it seriously.

Check the Nitrogen Gas Pressure Before You Start

Page 11 covers enclosure of nitrogen gas — inspection, adjustment, and what to do when gas pressure is high. The operating pressure adjustment procedure is also there. A breaker running with low nitrogen will hammer soft and waste fuel. High nitrogen will blow seals. This manual gives you the steps to set it right. No guesswork. You get the procedure to adjust operating pressure by the adjust plug on page 13. That is the kind of spec that aftermarket pamphlets leave out.

Chisel Replacement: Page 10 Procedure

Changing a chisel is not a hammer-and-pry-bar job if you want the bushing to last. The manual lays out the removal procedure (remove set pin, support chisel, slide out) and the fix procedure (grease, align pin holes, tap in set pin). Page 14 then tells you to inspect the chisel set pin for breakage and rotate the front bushing periodically. Greasing intervals and hydraulic oil checks are all there. This is not a generic “lubricate as needed” sheet. It is a factory schedule.

Why This OEM Manual Beats Aftermarket Copies

I have had customers bring in printed copies from online forums where the valve diagram was reversed left-to-right. That costs you time and money. This Takeuchi TKB-301, TKB-301S Parts Catalog is the original PDF from Takeuchi MFG. CO., LTD. The page numbers match the paper manual. The callouts line up with the actual parts. If you need to order a valve, a seal kit, or a chisel, you can give the dealer the exact reference number from this catalog and get the right part the first time. That is worth the price of the access alone.

Related Manuals

• 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

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Can I use this manual for maintenance procedures like torque specs?

No. This is a parts catalog, not a service manual. It shows exploded views and part numbers. Torque values and step-by-step repair instructions are not included. You need the service manual for that.

Will this catalog help me identify the correct valve for my TKB-301S?

Yes. The parts list on page 24 and 25 for the S-type breaker includes the valve assembly reference numbers. Cross-check with the valve switching method on page 7. If your breaker has a different bracket group (TB045, TB55UR, box-S type), those pages (22–26) also list the valve components specific to that mounting. Use the diagram to match the internal parts. If the valve body is damaged, the catalog gives you the seal kit part number from page 27. Order that instead of guessing a generic O-ring assortment.

If you are repairing a Takeuchi hydraulic breaker and need the factory parts breakdown, stop flipping through blurry online images. Access the Factory Manual and get the exact exploded views, part numbers, and safety warnings that your job site demands.