Description

Lull LD50, LL40 1985 Parts Catalog

You’re looking at the only parts catalog that came off the Lull LD50, LL40 1985 Parts Catalog press in June 1985. Not a reprint. Not some aftermarket PDF where someone tried to redraw a hydraulic valve block without knowing which way the O-ring faces. This is the original factory-issued manual – manual part number 31393002 – and if you’re keeping a Lull LD50 or LL40 running in a shop or on a jobsite, this is the binder you want within arm’s reach of the parts washer.

252 Pages of Genuine Part Numbers

Every page in this Parts Catalog is a direct scan of the original 1985 printing. No third-party edits, no redrawn figures that lose scale. Figure #1 alone covers decals and parts assembly with the exact factory callouts. Need the part number for the steering cylinder rod end on an LL40? You flip to the appropriate assembly figure, find the reference number, and cross-check it against the Parts List – same system the dealer used when your machine was new. The index at the front of the manual gives location references so you aren’t flipping through 252 pages blind.

Parts Ordering Instructions – Read Them

The manual includes the original PARTS ORDERING INSTRUCTIONS (page 2). They spell out exactly how to order: supply part number, quantity, model and serial number. They explicitly tell you NOT to include the pictorial reference number – that will only slow down the dealer. If you’ve ever ordered a part and gotten the wrong one because you guessed the supersession, you’ll appreciate having the factory-approved procedure. Shipping? FOB factory in Muscatine, Iowa. Returns require prior authorization – that’s OEM policy, not something someone made up.

Field Modifications and OSHA Compliance

Page P-3 covers FIELD MODIFICATIONS and the mandatory OSHA requirements (1910.178(a)(4)). The manual states that alternation of industrial trucks must be approved in advance in writing by the manufacturer. Counterweighting, mast changes that affect capacity, any safety-related modification – Prime-Mover (the original manufacturer behind Lull) will rererate capacity if they approve the change. You get the nameplate replacement instructions and the requirement to send photos of the revised truck. This isn’t theory; it’s the legal framework for keeping your machine OSHA-legal.

Who Needs This Manual?

If you own a Lull LD50 or LL40 articulated loader or forklift, you need this catalog to identify parts before you call a dealer. Aftermarket parts descriptions won’t give you the exact factory part number – this manual does. If you’re a shop tech who has tried to match a hydraulic fitting by guessing thread pitch, you know the pain. With this catalog, you pull the assembly diagram, read the part number, order it, and get the right piece the first shipment. Home garage enthusiasts who bought a surplus LD50 from a government auction will find the decal placement diagrams and the full parts breakdown for the mast, axle, and driveline.

Source: OEM Factory Print – Not Aftermarket

I’ve seen too many repair jobs go sideways because somebody used a third-party parts book that had the wrong seal dimensions. This catalog came from Lull (Prime-Mover) in 1985. The page numbers match, the callouts match, the part numbers are the ones stamped on the original castings. If you want to see how the automotive equipment industry handles service documentation, check out Automotive Industry Overview on Wikipedia – but for Lull-specific parts, you want the factory catalog.

Related manuals you might need on the same shelf: LULL L-812 Counterbalanced Mason Tender Parts Manual”>LULL L-812 Counterbalanced Mason Tender Parts Manual, Lull 644E-42 944E-42 Illustrated Parts Manual – Section: Engine & Attaching Part”>Lull 644E-42 944E-42 Illustrated Parts Manual – Section: Engine & Attaching Part, and LULL M-15BR Operator Maintenance Parts Manual”>LULL M-15BR Operator Maintenance Parts Manual. If you want a broader overview of industry standards, Automotive Industry Overview puts it in context.

FAQ

Does this manual include part numbers for the LD50’s driveline?

Yes. The catalog covers the entire machine – transmission, axles, brakes, mast, hydraulics, decals. Every assembly figure is accompanied by a part list with Lull factory numbers.

I have an LL40 with a serial number plate that’s worn off. Can I still identify parts?

You can. The manual is organized by assembly figure, not serial number. Start with the general index, find the section (e.g., “Drive Axle”), look at the exploded view, and match your part visually. Then order using the part number from the list. The manual itself explains that the dealer can cross-reference if you supply the model and approximate year, but your best bet is to find the part shape on the diagram.

Access the Factory Manual – get the full 252-page PDF of the Lull LD50/LL40 Parts Catalog on your screen today. No watermarks, no missing pages, no aftermarket guessing. This is the only parts list that matches the iron on your shop floor.