Shop Manual OEM #907212 covers one machine family across 306 pages: the SL4625, SL4625SX, and SL4625DX skid loaders. Hydraulic schematics span two serial number breaks, the wiring diagrams cover three electrical generations, and more than 200 pages of step-by-step procedures reach the hydrostatic pumps, drive chains, planetary gearcases, lift arms, and T-bar controls. Troubleshooting sections for the hydraulic, hydrostatic, engine, and electrical systems use real diagnostic logic instead of generic flowcharts. Need the pump drive coupling cap screws torqued? The factory tables list 65 lb./ft. (88 Nm), and each planetary gearcase takes exactly 1 U.S. quart (.95 litres). Bookmarks let you jump to a section; full-text search pulls any spec by keyword. The PDF opens on a laptop in the office or a phone at the machine.
What's Inside This Gehl 4625 Manual
| System | Pages | Key Topics |
|---|---|---|
| Specifications | 10 | Standard Features, Tire Options, Buckets & Capacities, Dimensions |
| Safety | 11-24 | Signal Words, Additional Safety Reminders, Mandatory Safety Shutdown Procedure, Lift Cylinder Mechanical Lock, Cylinder Lock Engagement, Cylinder Lock Disengagement |
| Decals | 25-29 | New Decal Application, Paint Finish, Decal List |
| Lubrication | 30-33 | Hydraulic Oil Reservoir, Crankcase Oil, Chaincases, Planetary Gearcase Oil, Grease Fitting Locations |
| Chassis | 34-61 | Introduction, Overhead Guard Removal, Overhead Guard Installation, Seat Removal, Seat Installation, Restraint Bar Removal, Restraint Bar Installation |
| Drive | 62-81 | Introduction, Drive Chain Adjustment, Drive Chain Removal, Drive Chain Installation, Axle & Sprocket Removal, Axle & Sprocket Installation, Axle & Wheel Bearing Disassembly |
| Controls | 82-144 | Introduction, T-Bar Removal, T-Bar Installation, T-Bar Position Adjustment, T-Bar Tracking Adjustment, Traction Controls, Left T-Bar Assembly, T-Bar Controls |
| Hydrostatic System | 145-176 | Introduction, Troubleshooting Guide, Case Drain Test, Charge Pressure Test & Adjustment - Before S/N 19720, Charge Pressure Test - S/N 19720 & Later, Hydrostatic Lockout Valves |
| Hydraulic System | 177-234 | Introduction, Troubleshooting Guide, Lift / Tilt Control Valve Relief Pressure Test, Tilt Cylinder Test, Self-Leveling Valve Test, Lift Cylinder Test, Solenoid Valve Test |
| Electrical System | 235-250 | Operation, Troubleshooting, Pin Measurement Procedure, Pin Voltage Table, Seat Switch Removal / Installation, Restraint Bar Switch Removal / Installation |
| Engine | 251-279 | Introduction, Troubleshooting Guide, Oil Filter Removal, Oil Filter Installation, Air Filter Assembly Removal / Installation, Air Filter Element Removal / Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Unified National Thread Torque (Grade 2, 8-32, Dry) | 19 lb-in | p. 305 |
| Starter Fuse Rating | 5 ampere | p. 236 |
| Battery Input Voltage | 12 Volts | p. 239 |
| Pump Drive Coupling Cap Screw Torque | 65 lb./ft. (88Nm) | p. 168 |
| Planetary Gearcase Fluid Capacity | 1 U.S. Quart (.95 litres) | p. 172 |
| Hydraulic Oil Reservoir Capacity | 10 U.S. gallons (37.8 liters) | p. 30 |
| Engine Crankcase Oil Capacity | 10 U.S. quarts (9.5 liters) | p. 30 |
| Chaincases Oil Capacity | 6 quarts (4.7 liters) | p. 31 |
| Planetary Gearcase Oil Capacity | 1 U.S. Quart (0.9 liters) | p. 31 |
| Drive Chain Deflection | .25" @ 20lbs | p. 63 |
| Axle Nut Torque | 150 ft-lbs | p. 68 |
| Planetary Gearcase Mounting Torque | 120 lb-ft (162.6Nm) | p. 75 |
Gehl 4625 Common Problems This Manual Covers
Gehl 4625 hydraulic fluid leak around tandem pump and engine adapter, puddle under machine after running p. 145
Clean the pump-to-adapter area completely, run the machine 10 minutes, and pinpoint the exact leak origin. Inspect pump drive coupling cap screws (page 168) and torque to 65 lb./ft. (88Nm) if loose. Verify the hydraulic reservoir on page 30 is at capacity: 10 U.S. gallons (37.8 liters). Replace failed interface seals and recheck after a short run.
Manual Section: Hydrostatic SystemEngine cranks slowly or won't start at all, especially after sitting overnight in cold weather p. 235
Check battery voltage first; this system runs on 12V (page 239). Load-test the battery because a weak cell hides until cranking load hits it. Inspect all cable ends and grounds for corrosion. Verify the lap bar safety switch is fully engaged. If still no crank, pull the 5-amp starter fuse on page 236 and inspect before chasing the starter or solenoid.
Manual Section: Electrical SystemMachine completely dead with no dash lights, no crank, zero response at the key
Go straight to the wiring diagram. Check for chewed or shorted wiring near the cab floor; rodent damage is the first suspect on these machines. Measure voltage at harness pins using the procedure on page 239, looking for 12V on the key-on circuit. Pull the 5-amp starter fuse (page 236) and inspect. One shorted conductor can kill the whole machine.
Manual Section: Electrical SystemOne drive side not responding or machine pulling hard to one side under load p. 145
Verify both T-bar controls are adjusted equally; uneven tracking mimics a hydrostatic fault. Check drive chain deflection on page 63: it should be .25" at 20 lbs of force. Open the hydrostatic troubleshooting guide on page 145 and work the one-side-not-driving checklist. Run the case drain test; low oil return from the drive motor signals a worn motor, not a failed pump.
Manual Section: Hydrostatic SystemLift arms won't raise or bucket tilts jerky and slow under full load p. 177
Confirm the hydraulic oil level first; the reservoir holds 10 U.S. gallons (37.8 liters), per page 30. With oil full, open the hydraulic troubleshooting guide. Slow or jerky lift usually points to low relief pressure or a sticking solenoid valve. Test the solenoid valve for a 12V signal at the connector before pulling any components.
Manual Section: Hydraulic SystemFrequently Asked Questions
How do I troubleshoot a Gehl 4625 electrical problem?
A blown 30 ampere (Master) Fuse is the usual cause when the entire electrical system goes dead. Before swapping the fuse, pull up the wiring diagram, trace the circuit, and find the underlying fault, such as pinched wires or a bad connection. The manual's electrical troubleshooting table walks through it.
How do I clear a Gehl 4625 hydraulic warning?
When the lift/tilt controls won't respond, oil that is too thick is a common culprit. Give the machine a longer warm-up so the fluid thins out, or switch to the correct viscosity. The hydraulic troubleshooting guide covers this and other warning conditions.
How will I receive this Gehl 4625 Service Manual?
Checkout triggers an instant download of the 306-page searchable PDF. Open it on a laptop, tablet, or phone, and take it straight to the shop floor.
Am I able to print pages from this Gehl 4625 manual?
Yes. The PDF carries no DRM restrictions, so you can print any page or section you need. Any standard printer handles it.
Can I find hydraulic circuit diagrams in this Gehl 4625 manual?
Included. Hydraulic system schematics cover all circuits, control valves, and component specifications for the Gehl 4625.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy text. The text is consistently crisp and easy to read throughout. Diagrams are clear black and white line drawings with legible labels, while photos are decent grayscale images. The pages are generally clean with minimal scan artifacts. There are a few pages explicitly marked as intentionally left blank.
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