From the cab, ROPS and frames through the axles, lift arm, hydraulic cylinders and a full engine breakdown, the Gehl AL 540 parts manual PDF maps this articulated loader assembly by assembly across 128 pages under publication number 918412. Exploded views tie each callout to a Gehl part number, so the control valve, axial piston pump, bent axis motor and Power-A-Tach cylinder break down to the last seal ring and fitting. Hydraulic and electrical schematics trace the complete harness plus the steering column, chassis, engine and cab circuits, and a numerical index lets you work backward from the number on a worn part. When the pump relief valve goes, order 204466, the 450 bar unit, and add return filter 274912 to the same order. A loader on blocks can sit for days over one part number. Bookmarks split the file by system and the text layer is searchable, so you reach the right exploded view in a click or two.
What's Inside This Gehl AL 540 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Tools | 5 | Tools/Paint/Special Service Parts and Kits |
| Filters | 6-7 | All Filters, Return Filter - 274912 |
| Cab | 8-25 | Assembly, Doors - 270067 & 270071, Wipers, Heater, Completing Components, Mirrors, Steering Column - Deluxe, Operator’s Platform - Upper |
| Chassis | 26-37 | Front Frame, Rear Frame, Covers, Electrical (- Fuses, Headlights/Tail Lights, Field-Installed Road Light Kit, Battery Disconnect Kit, Backup Alarm Kit), Counterweight (Kit) |
| Controls | 38-41 | Differential Lock, Inching - Brake, Parking Brake, Throttle |
| Axles | 42-50 | Front and Rear Axles, Driveshaft, Internal Components, Wheels and Tires |
| Lift Arm | 51 | Assembly |
| Hydraulics | 52-63 | Hydraulic Tank, Hydraulic Drive, Power Steering, Control Valve, Auxiliary Valve, Axial Piston Hydraulic Pump |
| Hydraulic Cylinders | 64-67 | Lift Cylinder, Tilt Cylinder, Steering Cylinder, Power-A-Tach Cylinder |
| Attachments | 68-70 | All-Tach, Power-A-Tach, Field Installed Power-A-Tach Kit |
| Decals | 71-75 | Common Decals, ANSI Style Decals |
| Engine | 76-76 | |
| Cylinder Block | 77-77 | Assembly, Gear Housing, Flywheel Housing/Oil Pan, Intake Manifold, Camshaft |
| Gear Housing | 78-79 | |
| Cylinder Head and Cover | 80-98 | Exhaust Manifold |
| Fittings / O-Rings / Seal Rings | 99-101 | Hose / O-Ring Compatibility, Abbreviations and Descriptions for Fittings |
| Notes | 102 | |
| Schematics | 103-108 | FOPS, Power-A-Tach and Tail Light Electrical Schematics |
| Torque Specifications | 125-128 | Hydraulic Fittings, Coarse-Pitch Thread, Fine-Pitch Thread |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Relief Valve Pressure | 450 bar | p. 61 |
Gehl AL 540 Common Problems This Manual Covers
Gehl AL 540 return filter part number needed, original filter label worn off and unreadable
Check the Filters pages starting on page 6, where every filter on the machine is grouped together. The return filter is listed as part number 274912. Order by that number instead of the worn label, and pull the other filters from the same pages so the whole service is covered in one order.
Manual Section: Filters p. 6Hydraulic relief valve part number needed for replacement, unsure which pressure rating fits
Check the hydraulic parts listing on page 61, where the relief valve is called out as part number 204466, rated at 450 bar. Verify that rating before you order, since a valve with the wrong setting is a costly mistake. Trace the circuit on the hydraulic schematic on page 103 to confirm where the valve sits.
Manual Section: Hydraulics p. 61Leaking lift or tilt cylinder needs replacement parts, unsure which cylinder parts page applies
Check the Hydraulic Cylinders section starting on page 64, which breaks out the lift, tilt, steering and Power-A-Tach cylinders separately. Identify the cylinder by its position on the machine first, then order from that cylinder's own exploded view. Check the Lift Arm assembly on page 51 for related lift arm parts.
Manual Section: Hydraulic Cylinders p. 64Hydraulic fitting weeping after hose replacement, unsure which O-ring or seal ring matches the fitting
Check the hose and O-ring compatibility listing on page 99 before reusing any seal, and decode the fitting abbreviations in the same section so you order the correct style. Torque the new fitting to the hydraulic fitting values on page 125 rather than by feel, and replace the O-ring whenever the fitting comes apart.
Manual Section: Fittings / O-Rings / Seal Rings p. 99Accessory circuit dead, can't find which fuse protects it or its correct rating
Check the Electrical Fuses listing in the Chassis section, which shows fuse locations, ratings and the circuit each one protects. Replace a blown fuse only with the rating listed for that circuit. If the fuse keeps blowing, trace the circuit on the complete electrical schematic on page 104 before ordering more parts.
Manual Section: Electrical FusesCab door damaged beyond repair, unsure which of the two listed door part numbers fits
Check the Doors page of the Cab section on page 10, where the doors are listed under part numbers 270067 and 270071. Compare the exploded view with your cab to confirm which door assembly matches your machine before ordering. Pull any related cab parts from the same section so one order covers the job.
Manual Section: Cab p. 10Frequently Asked Questions
What are the replacement specifications for the engine oil filter on the Gehl AL 540?
The replacement engine oil filter for the AL 540 is part number 195568. This filter is listed in the 'All Filters' section of the parts manual. p. 6
What is the torque spec for an M12 coarse-pitch grade 8.8 bolt per DIN 912, 931, or 933 on the Gehl AL 540?
For an M12 coarse-pitch thread bolt (grade 8.8) conforming to DIN 912, 931, or 933, the torque specification is 64 lb.-ft. (87 Nm). p. 127
What is the torque specification for a G1/2A hydraulic fitting with a sealing washer on the Gehl AL 540?
The torque specification for a G1/2A hydraulic fitting using a sealing washer is 48 lb.-ft. (65 Nm). p. 125
What is the part number for the primary air filter element on the Gehl AL 540?
The primary air filter element for the AL 540 is part number 270740. p. 6
What do I get after purchasing this Gehl AL 540 manual?
A 128-page Parts Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is printing allowed for this Gehl AL 540 Parts Manual?
Yes. Many mechanics print the section they need for their own shop and bring it to the bench.
Does this Gehl AL 540 Parts Manual include the hydraulic layout?
A hydraulic system diagram is included, enough to follow the main lines on the Gehl AL 540. Page 103 carries one of them.
