Description

Link-belt Speeder LS 108 C Parts Catalog

You’ve got a Link-belt Speeder LS 108 C on site with a busted track roller or a leaking steering gear. The aftermarket parts catalog you obtained last week gave you a part number that doesn’t fit, and now the machine is down another day. That’s the problem with guessing – or trusting some third-party rehash. This Parts Catalog is the factory file, straight from FMC Corporation. 116 pages of numbered assemblies, cross-sections, and genuine part codes. No translation errors, no “equivalent” garbage. If you’re ordering parts for this machine, you need the serial number in hand – because the catalog tells you exactly where to find it and how it ties to every component.

Identifying Your Machine: Serial Numbers and Stamping Locations

Page 1 of this catalog is worth its weight in labor hours. The machine serial number is stamped on a plate inside the cab, to the right of the operator. If that plate is missing, the factory stamped a backup number on the right-hand boom foot mounting lug – on the upper revolving frame. For hydraulic cranes and excavators like the LS 108 C, check between the boom hoist cylinder mounting lugs. That number (A, B, C, etc.) lets the distributor find your exact build. I’ve seen guys order a track shoe for a 30-inch grouser when they actually needed a 36-inch, because they skipped this step. Don’t be that guy.

Lower Frame and Track Components: What’s in the 116-Page Catalog

Flip to the lower retractable frame assembly section (starting around page 2) and you get a full breakdown: side frames, center pin, ring gear, drive chain parts – including part numbers for the 30-inch and 36-inch track shoes. The track roller assembly is blown up with every bushing, O-ring, and setscrew listed. Page references: you’ll see the G91A187 assembly with 22 track rollers, each with its own shaft, block, oil seal assembly, and plug. If you’ve got a squeaking roller, the O-ring sizes (Part No. 91A1430 and 91A1435) are right there. No digging through generic bearings catalogs.

Steering Mechanism Section: More Than Just Parts Numbers

The steering mechanism section – G1A304 854, 954 – covers the 1A steering assembly. Exploded views with 41 reference numbers. Link-Belt Speeder engineers numbered every pin, washer, lockwasher, and nut. Need the steering shaft bushing? It’s listed with the correct lockwasher (1X37) and nut (1X156). The catalog uses only genuine Link-Belt Speeder parts, and they remind you on every page: “Always give machine number when ordering parts.” That’s not a suggestion – it’s how you avoid getting a part that almost fits.

Why a Factory Parts Catalog Beats Aftermarket Cross-References

Aftermarket databases often merge different revisions into one number. This catalog came out of the factory at a specific point in the LS 108 C production run. Every part number corresponds to a drawing revision that matches your serial number range. The Automotive Industry Overview may talk about standardization, but on a 1970s-era crane, you need the line-item details. The catalog also includes the “Use Only Genuine Link-Belt Speeder Parts” warning on every spread – because a cheaper bearing or an off-spec seal will let grit into the track rollers. I’ve replaced entire roller assemblies because someone used a non-factory O-ring. That’s a $2 part costing $800 in labor and downtime.

Who Needs This Manual

If you’re a shop owner with an LS 108 C in your fleet, or a home mechanic who bought a surplus crawler, this catalog is the only way to order parts that will actually bolt on. The parts list is broken down by assembly – lower frame, track rollers, steering, etc. – and each section has a reference number that matches the exploded diagram. No narrative instructions, but that’s not the point. You don’t want a story; you want the correct part number for a Track Shoe 36″. It’s on page 2: Part No. 98, Qty 4.

Related manuals you might need:

• Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide
• Futura FC200-FC400 Parts Catalog – OEM Wear Parts Specs
• LANDTRAC TRACTOR Parts Manual Models 410-550 DTC – Section: Numerical Index

Automotive Industry Overview Automotive Industry Overview gives context, but it won’t tell you the thread pitch on a steering nut. This catalog will.

Does this Parts Catalog include service procedures or torque specs?

No. This is a parts listing only – exploded views, part numbers, and quantities. For service procedures you need the repair manual, not this catalog.

How do I find the correct section for my LS 108 C serial number?

Look at the first page inside the “Model LS 108 C” block. The book and serial number are listed. Cross-reference that to the page range for each assembly. The track roller section starts with assembly G91A187 – that’s a universal section, but the serial number ties it to your machine revision.

Can I use this catalog to order parts for an LS-108 with a different suffix letter?

Possibly, if the suffix changes (A, B, C) it usually means a revision. The catalog is marked LS 108 C specifically. If you have an LS 108 C with a later suffix, you might need a supplement. Always check the serial number plate.

Are the part numbers still valid for current supply?

Many original Link-belt Speeder part numbers have been superseded. The catalog shows the original factory numbers. Your dealer uses those to cross-reference to current stock. Without the OEM number, you’ll get the wrong part.

You’re not looking for a bedtime read – you need the right part number for a track roller shaft on an LS 108 C so you can get the crane back to work. This is the factory file. Access the Factory Manual and keep it in the shop tablet. Next time you order a Track Roller Assembly (Ref 1, Part 91A1426), you’ll have the confidence that it’ll mate with the shaft and the bushing without filing or hammering. That’s what 116 pages of genuine OEM data buys you.