Description

GEHL AL 540 2010 Parts Catalog

If you are ordering parts for a GEHL AL 540 2010 Parts Catalog articulated loader built after serial number 51242, you need the right numbers. I have lost count of the times a tech or owner called me because they ordered the wrong hydraulic filter or seal kit. That mistake costs you downtime and freight charges. This is not a service manual, but if you need to identify a component and buy the exact GEHL part, this is the document. 128 pages of exploded views and reference numbers.

Aftermarket parts catalogs are a gamble. They skip hardware bags, leave out seal kit contents, and often use generic part numbers that do not match GEHL inventory. Stick with the factory print.

Tools and Service Parts Organization

Page 1 of this catalog lists the tools, paint, and special service parts and kits recommended by GEHL. Do not skip that section. If you need a specific service tool for the AL 540, that is where you find the part number. The catalog organizes everything by system, not by random alphabetical listing. You move from the cab down to the chassis, then to hydraulics, then the engine. That structure makes sense when you are standing in front of the machine.

Serial Number Breaks – Why They Matter

Page 2 of the manual explains how GEHL breaks serial numbers. The AL 540 covered here starts at SN 51242 and up. That matters because a front frame from an earlier machine may not bolt to a later cab. The factory gives you three break formats: “and before,” “range,” and “and up.” They also note exceptions, such as “SN 999 and before except 997.” Read that section once before you order anything. Misreading a serial number break means you get the wrong bracket or wiring harness.

Fastener descriptions use abbreviations like CS (cap screw), HB (hex bolt), and LN (lock nut). The abbreviation table sits on page 2. All cap screws, nuts, and bolts are Grade 8.8, cadmium or zinc plated unless noted. Metric torque values in the illustrations are in Newton-meters. Multiply by 0.738 to get foot-pounds. Keep that table handy when you reassemble.

3 Key Sections for Common Repairs

Three sections in this catalog get the most use on my workbench: Filters (page 2), Cab Assembly (page 4), and Engine Assembly (page 72). Hydraulic filter part numbers, return filter 274912, cab door latch components, and every gasket for the engine block. If you need to order a tilt cylinder or steering cylinder, those are under Hydraulic Cylinders starting on page 60. Each exploded view has a reference number that ties to the parts list. Circled numbers indicate a complete assembly. A small bag icon means a seal kit – do not miss that.

The electrical section (page 26) covers fuses, headlights, tail lights, and the backup alarm kit. Good to have when you are chasing a parasitic drain.

Fastener Torque and Abbreviation Table

Standard attaching hardware torque values are printed on the inside back cover. Do not rely on memory or a generic chart from the internet. GEHL built this loader to metric specs, and the torque values in the illustrations are in Newton-meters. The conversion factor is on page 2: Nm x 0.738 = ft-lb. Use it. A stripped bolt in the counterweight bracket will cost you more than the price of this manual.

Abbreviations like FHCS (flat head cap screw), HLN (hex lock nut), and LW (lock washer) appear throughout. The table on page 2 defines each one. If you see “GR” in a callout, it means Grade. Do not substitute a lower grade fastener because that bolt holds the ROPS structure.

Does This Catalog Include Engine Parts?

Yes, the Engine section starts on page 72. You get the engine assembly, cylinder block, and related components. If you want background on how a diesel engine operates, this Wikipedia article on diesel engines explains the cycle. But for actual part numbers like piston rings, injectors, or gasket sets, you need the GEHL parts catalog. this Wikipedia article on diesel engines will not tell you the GEHL part number for a valve cover gasket. Only factory documentation does that.

Get the Right Part Number on the First Call

When you call a dealer, have the unit model (AL 540), serial number, and the part reference number from this catalog ready. Specify the full description and quantity required. Use only genuine GEHL service parts. The manual states that on page 2. Aftermarket parts often do not meet the grade or plating spec. That can cause corrosion or fastener failure in the lift arm assembly.

One note: this is a parts catalog, not a service manual. If you need repair procedures, torque specs for major components, or diagnostic steps, you want the service manual. The parts catalog helps you buy the right component. The service manual tells you how to install it correctly.

Can I use this parts catalog to perform a repair?

No. This is a parts identification document, not a service procedure. For repair steps, get the service manual.

How do I convert the metric torque values shown in the illustrations to foot-pounds?

The manual gives you the conversion factor on page 2: multiply Newton-meters by 0.738. But that is a rough conversion. The illustrations list torque in Nm for metric fasteners. If you are working on a machine built to metric specs, use a torque wrench set to Nm. Do not guess. Get the correct grade of fastener as specified. This is a GEHL manual, so they call out Grade 8.8 cap screws. That matters. For critical joints like the ROPS mounting bolts, use the exact torque from the illustration, not a generic table from the internet.

• GEHL AL 140 to AL 540 Operators Manual – Factory Specs for Articulated Loaders
• GEHL AL 540 AL 440 2011 Service Manual – Factory Specs & Torque Data
• GEHL AL 540 2011 Parts Catalog – Factory OEM Parts Manual

Do not waste time flipping through catalogs that list parts for three different manufacturers on one page. Access the Factory Manual. 128 pages, 2010 publication, OEM GEHL documentation. It will sit in your toolbox next to the service manual and save you a return trip to the parts counter.