Description

JLG 40HA 2006 Parts Catalog

You need a part for a JLG 40HA. You look up the number in a third-party catalog and get a piston that doesn’t fit because the manual you are using doesn’t split the production dates. That costs you time and money. Factory OEM documentation is the only way to be sure. This is the official JLG 40HA Parts Catalog from 2006, published by JLG Industries. It has 318 pages of exploded views and part numbers, covering every revision from initial production through August 1, 2006. Aftermarket catalogs skip these splits. Factory does not.

What This Parts Catalog Covers – From Frame to Platform

Section 1 covers the frame, steering, axle, and brake assemblies. You get Figure 1-5 for the Ausco drive brake (prior to March 1992) and Figure 1-6 for the Mico brake (March 1992 to present). If your machine was built after 1992, you need the Mico parts. The catalog shows you exactly which seal kit or brake disc to order. Section 2 covers the turntable with control valves, swing drives, and pump assemblies. There are separate figures for Deutz, Ford, and Kubota engines. Section 3 is the boom – main assembly and limit switches. Section 4 is the platform – standard and low mount, console boxes, and optional components. Section 5 is cylinders: axle lockout and more. All 318 pages organized by assembly.

3 Reasons to Use Factory OEM Documentation

First, part numbers are verified against JLG’s own revisions. Second, exploded diagrams show exact orientation and hardware. Third, you get the correct supersession information – for example, the Mico brake replaces the Ausco in 1992. Aftermarket catalogs often ignore these dates. You’ll order the wrong brake if you use third-party parts lists.

How to Find the Right Brake Part Number

If your machine is a 40HA built after March 1992, flip to Figure 1-6 on page 1-22. The illustrated view shows each component with a callout number. Cross-reference that number with the parts list on the facing page. You’ll get the OEM part number for the Mico brake assembly. For earlier machines, use Figure 1-5. The catalog also includes the drive hub/brake assemblies in Figures 1-8 and 1-9, split by production year. This is the kind of detail that makes a difference when you are up against a deadline.

Swing Drive and Turntable: Avoiding the Wrong Pump

Section 2 has multiple pump assemblies – Sunstrand and Barnes, with different date ranges. For instance, Figure 2-22 covers the Barnes pump used on standard controls from April/May 1990 to January 1993. Figure 2-23 covers the same pump from January 1993 to present. If you order a pump without knowing your build date, you might get the wrong mounting pattern. The catalog also covers the swing motor assembly with three different iterations (Figures 2-9, 2-10, 2-11) and the swing brake (Figures 2-12, 2-13). All OEM part numbers.

Why 318 Pages Matter

Thickness is not everything, but in a parts catalog, page count tells you the level of detail. General aftermarket catalogs for this machine might have 50 pages. Factory OEM has 318. That includes every nut, bolt, seal, and hose. It includes the tow package installation (Figure 1-13), the 110 volt generator options (Figures 2-16, 2-19), the ground control box installations (Figure 2-28), the rotator motor assembly (Figure 4-3), and the console box variations across standard bang-bang, proportional, and hydraulic controls. You also get the cylinder section (Section 5) with axle lockout cylinder assemblies for 4WD/4WS. All 318 pages are populated with JLG part numbers and revision notes. No other source gives you this depth. That is why you need the factory manual. Automotive Industry Overview

Frequently Asked Questions

Does this catalog cover the Kubota V1200B engine installation?

Yes – see Figure 2-20.

What is the difference between the Ausco and Mico brake assemblies in this manual?

The Ausco brake assembly (Figure 1-5) was used on machines built prior to March 1992. The Mico brake (Figure 1-6) replaced it from March 1992 onward. The parts are not interchangeable – the Mico uses a different mounting and seal kit. The catalog provides both sets of part numbers and an exploded view for each. If you have a machine built after March 1992, order parts for the Mico. If you are rebuilding an older unit, the Ausco parts are still listed. This split prevents ordering the wrong brake. Aftermarket catalogs often list only one brake type, which leads to returns. Factory documentation gives you both because JLG made the change and tracked it in the manual.

If you own or work on a JLG 40HA, get the factory parts catalog. It will save you from ordering wrong parts and wasting time. Access the Factory Manual from AutoRepairManuals. You also may need related manuals: JLG 8042, 10042, 10054 2012 Parts Catalog – Factory OEM Skytrak Manual, JLG Illustrated Parts Manual 1930ES, 2030ES, 2630ES, 2646ES, 3246ES – Section: S, JLG Toucan 1010 Illustrated Parts Manual. Automotive Industry Overview – this external resource confirms the importance of OEM data. Don’t gamble with aftermarket reprints. Get the real thing.