Description

Terex HR 20 2006 Parts Catalog – OEM Factory Parts Manual

You call in a part number from a worn‑out hydraulic line, and the counter guy reads back three different versions. None match your serial number. That’s the kind of waste I’ve seen eat up a morning in a 6‑bay shop. A Terex HR 20 2006 Parts Catalog stops that nonsense cold. 334 pages of factory‑sourced part numbers, exploded views, and subassembly indexes that tie each component to a specific serial range. If you’re pulling a swing drive or tracking down a seal kit for the boom, this document tells you exactly which piece goes where — no aftermarket guesswork.

This parts catalog comes from Terex GmbH, the OEM. It covers the HR 20 crawler excavator built up through serial number 000120/0099 and later. The original file is multilingual: German, English, and French. That matters because some of the older Terex | Schaeff machinery still has German‑only markings on the hydraulic block. Having the factory French and English side‑by‑side on page 3 saves you from mis‑reading a thread spec.

Parts Breakdown and Subassembly Indexing

The catalog breaks down into five main chapters under the VORWORT / INTRODUCTION / PREAMBLE. Section 0.001 is the Guide for User — it explains the numbering logic so you can jump straight to the right subassembly without flipping through all 334 pages. Section 0.002 (Important Notice) lists revision flags and cautions about updated components. Sections 0.003, 0.004, and 0.005 give you three separate indexing paths: by subassembly, by group, and alphabetically. That means you can start with a descriptive name like “oil tank” and land on group 2.002 using the example on page 4.

Using the Guide for User Section (EL0001HR)

Page 4 walks you through the “texture of spare parts catalog.” The manual shows a two‑step example: first find the main group (e.g., “Uppercarriage Including Mountings” – group 2.000), then the subassembly (“Oil Tank” – 2.002). Each subassembly page has an exploded diagram with reference numbers and a parts table listing the part number, description, quantity per machine, and any serial number restrictions. If you have the machine in front of you, you can visually match the part on the illustration and cross‑check the number.

Important Notices and Authenticity

Section 0.002 warns that the pictures are not binding for final execution and that Terex reserves the right to make technical improvements without notice. That’s not a liability disclaimer — it’s a heads‑up that later‑build machines might use a superseded part. The catalog lists the valid serial number range (000120/0099>), so you know exactly which edition applies to your machine. Aftermarket catalogs often skip these revision notes, leaving you to order a part that changed two years later.

How the Catalog is Organized: Main Groups and Step-by-Step

The main groups are listed in section 0.004 (“Contents Acc. To Groups”) and cover everything from the undercarriage to the upper carriage, engine attachments, hydraulic system, and electrical components. Each group has a range of subassembly numbers. For example, group 1 might be “Undercarriage,” and subassembly 1.001 covers the track frame, 1.002 the final drives. You start at the “Main Groups” pictorial (Bildtafel) in the contents, pick your group, then drill down. This is exactly how a factory parts counter works — one number leads to the next.

Expect to see part numbers for seals, bearings, hydraulic lines, and structural components. If you’re rebuilding a hydraulic cylinder on an HR 20, you’ll find the gland nut, rod seal, wiper, and O‑ring listed with dimensions. No guessing what size the backup ring is — it’s in the table. That kind of detail keeps you from ordering three wrong kits before getting the right one.

Any shop that works on older Terex excavators needs this catalog. The HR 20 shares components with the Schaeff line, and the parts catalog cross‑references many of those common parts. Pair it with the Schaeff-terex SKL 863 2003 Parts Catalog – OEM Factory Manual for even broader coverage. The SKL 863 uses similar undercarriage parts, and having both catalogs on the same USB stick cuts your search time in half.

Who Needs This Parts Catalog?

Home garage guys who maintain their own crawler excavator will use this to verify part numbers before ordering online. Professional mechanics in rental fleets or construction equipment repair shops will lean on it to quote jobs accurately and avoid buying parts that don’t fit. Even a beginner can follow the indexing method — it’s designed for anyone who can read a picture and match a number. The only tool you need is the machine’s serial number plate and a good light.

If your HR 20 is a later serial number (past 000120/0099), you may need the updated catalog from Terex. But for the 2006 model year, this is the definitive reference. I’ve had a half‑dozen of these Schaeff‑Terex catalogs on the shelf for years, and they only fail when you lose the page that lists the supersession. Keep a PDF copy on your phone — you will need it at the parts store.

Related manuals worth having: Schaeff-terex SKL 853 2003 Parts Catalog – Factory OEM 485 Pages covers the smaller SKL series with many shared hydraulic fittings. Also check the Schaeff-terex SCL 515 2002 Parts Catalog – OEM Factory Manual for the SCL wheeled loader if you run a mixed fleet.

FAQ

Does this parts catalog include torque specs for bolts?

No. This is a parts catalog, not a repair manual. It lists part numbers, exploded views, and quantities. For torque values, you need the Terex HR 20 service manual.

Can I use this catalog to order parts for a Terex HR 20 built after 2006?

The catalog is valid for serial numbers starting from 000120/0099 and later, as stated on page 1. If your machine was built after 2006, Terex may have introduced engineering changes not reflected in this edition. Always check the serial number against the range printed in the catalog. If your serial falls outside the range, contact Terex or a dealer for the superseding parts. The catalog’s “Important Notice” on page 3 explicitly states that Terex reserves the right to modify parts without notice, so you must verify the part number against your machine’s current configuration. For 2006‑era machines, this catalog is the correct OEM source — aftermarket cross‑references often miss the nuance of serial breaks, leading to wrong seals or hydraulic lines. Stick with the factory data.

Stop burning time on parts that don’t align. Access the Factory Manual from AutoRepairManuals and get the exact part numbers Terex assigned to your HR 20. Keep a copy in the shop tablet and another on your phone. Every hour you save on parts lookup is an hour you can spend on actual wrenching. For a broader view of construction equipment documentation standards, see the Automotive Industry Overview.