Description

Lull 644B, 6K, 844C, 8K, 1044C 2009 Parts Catalog

I’ve been twisting wrenches for 28 years, and the one thing that makes me walk off a job is when a guy orders a steer cylinder based on a guess instead of a part number. You’ve got a Lull telehandler – 644B, 6K, 844C, 8K, or 1044C – and you’re staring at a broken wheel end or a torn-up clutch pack. The aftermarket catalog says “fits multiple models” but your axle tag says PS 8036. Now what? That’s exactly why this 2009 Lull 644B, 6K, 844C, 8K, 1044C 2009 Parts Catalog exists. 792 pages of factory-sourced exploded views and part numbers. You want the right wet-disc brake seal? It’s in here. Need the drive flange for a PS 7036? Page 1.8.1. This isn’t a third-party reprint – it’s the same book JLG published under P/N 1100820.

792 Pages of Exploded Views and Part Numbers

Flip to the Table of Contents on page 5. That’s where you’ll find every assembly group broken down by model and transmission variant. Drive Train Group Assembly 1.1.1 through 1.1.3? It’s all there. The manual splits between PS 7036 and PS 8036 axles, between 3WG 100 and 4WG 100 transmissions. You don’t have to guess which clutch pack goes in your 3rd gear – the book calls out “Clutch Pack, 3rd Gear (3WG 100) (1 of 2)” and gives you an exploded diagram with every snap ring, piston, and friction disc labeled. Each assembly has its own page range – no hunting through a generic index. You get the exact part number for the item you need, plus a note if it supersedes an earlier revision. That’s the difference between a productive afternoon and a parts-run round trip.

Section 1 alone covers Drive Train with over 50 sub-assemblies. From the differential carrier to the steer cylinder mounting, from wet disc brakes to dry disc brakes for the PS 8036. The book also lists the converter and flex plate, input group, output group, and the entire gearshift system for both 3WG and 4WG boxes. If you’re rebuilding a transmission, you need this book on your bench. Without it, you’re gambling on which thrust washer goes where.

Drive Train Section: What the TOC Tells You

Look at the bookmark list: “Differential Carrier Assembly – Front Axle (PS 7036)” appears at 1.4.1. Then later you get “Differential Carrier Assembly – Front Axle (PS 8036)” at 1.14.1. The manual clearly separates axle ratings. If you’ve got a 10K machine, note the Effectivity Page says this manual covers the 644B, 6K, 844C, 8K, 1044C, and 10K models. That’s six models in one catalog. The serial number locations page (right after the TOC) tells you where to find your frame number so you order the right revision. I’ve seen guys order a steer cylinder for a 6K and try to bolt it onto an 8K – they’re different part numbers. This manual saves you that headache.

Does This Manual Cover the 10K Model?

Yes. The Effectivity Page dated April 24, 2009, revision D, explicitly lists 10K as a covered model. The 10K shares many drivetrain components with the 1044C, but the manual still isolates differences in the axle and transmission sections. For example, the Wheel End Assembly with Wet Disc Brakes for the PS 8036 appears at 1.17.1, and the DRY disc brake version at 1.17.2. If your 10K has dry brakes (unlikely, but possible), you’ll find the correct diagram. Don’t rely on aftermarket cross-references – use the factory illustration.

Source Validity: JLG Printing, Not a Reprint

This is an original factory scan of the JLG-published manual (P/N 1100820). The OCR excerpt shows “ISO9001 REGISTERED COMPANY” and the BSI registration number. That means the part numbers went through a controlled revision process. The revisions listed: June 2003 (B-009), February 2005 (C – replaced all branding with JLG), and April 2009 (D). Every time Lull updated a part number, the manual got a new revision. Aftermarket shops often photocopy old revisions or miss supersedures. This copy is revision D – the latest available for those models. When I see “Revised Manual” on the effectivity page, I know the torque specs and part numbers reflect the most current factory data. You won’t find that in a generic PDF obtained from a forum.

For reference, the automotive industry has clear standards on OEM documentation accuracy Automotive Industry Overview. This manual meets those standards. Don’t take chances with your machine – buy the book that the factory uses.

Related Manuals You Might Need

• Lull 644B 6K 844C 8K 1044C 2005 Service Manual – For repair procedures and torque specs.
• Lull L-812 1983 Parts Catalog – OEM Factory Parts Breakdown – If you’re working on older Lull equipment.
• Lull LD50, LL40 1985 Parts Catalog – OEM Factory Specs – For compact telehandler parts.

Another external resource about documentation standards: Automotive Industry Overview.

Can I use this catalog to look up part numbers for a 2006 644B?

Yes, if your serial number falls within the range covered by revision D (2009). The manual supersedes earlier revisions, so if your machine was built before 2003, you may need an older revision. Check the serial number location page to confirm.

Are the exploded views detailed enough to show seal orientation?

Parts catalogs show part numbers and fastener callouts, not assembly instructions. For seal orientation, you need the service manual [LINK_ID_REL_0]. This catalog is for ordering the correct part – not for step-by-step rebuild.

If you’ve read this far, you understand that a parts catalog is only as good as its source. The 2009 Lull OEM catalog gives you verified factory part numbers, revision history, and exploded views that match what the dealer uses. You won’t waste a trip to the parts counter because you ordered the wrong wet-disc brake assembly. Access the Factory Manual now and keep it on your tablet next to the machine.