Need the factory service data for your Gehl SL4635 or SL4835 skid loader? Carrying OEM #907809, this reference runs 184 pages and covers all four variants: SL4635SX, SL4635DXT, SL4835SXT, and SL4835DXT. It maps hydraulic and hydrostatic schematics for every configuration, a full electrical system diagram, and exploded assembly views across each major system. Step-by-step procedures span mainframe, wheel drives, controls, hydrostatic pump, and engine, backed by torque specs and troubleshooting trees for hydraulic, hydrostatic, electrical, and engine faults. Set axle nut torque to 150 ft-lbs (200 N•m) and confirm crosstube shaft end play between 0.03 and 0.06 inches before you close up the control assembly. Bookmarked and keyword-searchable, it opens on any device and jumps straight to the section you need.
What's Inside This Gehl SL4635, SL4835 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 2-6 | Manual Purpose and Scope, Procedure Documentation Style, Manual Navigation and Aids, Support and Assistance, Tire Options, Buckets and Capacities, General Information, Signal Words |
| Specifications | 7-8 | Engine, Hydraulic System, Electrical, Tire Options, Buckets and Capacities, General Specifications |
| Safety | 9-16 | - |
| Lubrication | 17-20 | Hydraulic Oil Reservoir, Crankcase Oil, Chaincases, Grease Fitting Locations, General Information |
| Mainframe | 21-42 | Engine Access Cover, Rollover Protective Structure (ROPS), Seat Removal, Restraint Bar, Liftarm, Crossmember |
| Wheel Drives | 43-50 | Drive Chain Adjustment, Drive Chain Removal, Axle Housing Assembly, Axle and Wheel Bearing, Idler Sprocket and Bearing |
| Controls | 51-88 | Control Handle, Crosstube, Neutral Centering Adjustment, Control Arm Assembly, Lift/Tilt Control, Auxiliary Hydraulics Cable |
| Hydrostatic System | 89-102 | Troubleshooting Guide, Case Drain Test, Charge Pressure Test, Hydrostatic Pump Relief Valves, Hydrostatic Pump, Drive Motor |
| Hydraulic System | 103-146 | Troubleshooting Guide, System Pressure Test, Control Valve, Tilt Cylinder, Lift Cylinder, Hydraulic System Schematic |
| Electrical System | 147-158 | Description of Operation, Electrical System Schematic, Glow Control Relay Operation, Relay Test, Restraint Bar Switch Removal and Installation, Seat Switch Removal and Installation |
| Engine | 159-174 | Air Cleaner Assembly Removal and Installation, Battery and Tray Removal and Installation, Engine Removal and Installation, Exhaust Assembly Removal and Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Axle housing nuts torque | 90 ft-lbs (1120 N•m) | p. 48 |
| Axle nut torque | 150 ft-lbs (200 N•m) | p. 49 |
| Pump arm capscrew torque | 30 ft.-lbs. (40 N•m.) | p. 91 |
| Crosstube shaft end play | 0.03” to 0.06” (0.8 to 1.5mm) | p. 68 |
| Hydraulic oil filter element installation | Hand tighten until gasket contacts filter head, then turn another 3/4 turn | p. 118 |
| Engine Displacement | 2.18 L | p. 7 |
| Hydraulic Reservoir Capacity | 12 US gal | p. 7 |
| Engine Oil Capacity | 8.5 US quarts | p. 7 |
| SL4635 / 4635SX, 4635DXT | ||
| SAE-Rated Operating Load | 1425 lbs | p. 7 |
| Fuel Tank Capacity | 15 US gal | p. 7 |
| SL4835SXT/DXT | ||
| SAE-Rated Operating Load | 1625 lbs | p. 7 |
| Fuel Tank Capacity | 17 US gal | p. 7 |
Gehl SL4635, SL4835 Common Problems This Manual Covers
Gehl SL4635 engine cranks but won't fire, no glow indicator on startup p. 147
Scan the battery terminals for corrosion first; minimum spec is 1000 CCA (page 7). Verify both the seat switch and restraint bar switch close fully with the bar down. Follow the ignition wiring on the schematic on page 156. If the glow indicator stays dark at key-on, test the glow control relay per the procedure on page 147.
Manual Section: Electrical System Troubleshooting GuideTraction drive won't engage in either direction, both control handles unresponsive p. 90
Inspect the control linkage rods connecting each handle to the hydrostatic pump arms. A disconnected or stretched rod kills drive on one or both sides. Check neutral centering at each lever per the troubleshooting procedures on page 90, and verify pump arm capscrews are torqued to 30 ft-lbs (40 N·m). Reconnect or adjust any loose or misaligned linkage before testing.
Manual Section: Hydrostatic System Troubleshooting GuideLift arm and bucket tilt controls completely dead, hydraulic reservoir low p. 103
Measure the hydraulic reservoir level first; capacity is 12 US gal and must read at the full mark on page 17. Walk the machine for visible hose or fitting leaks before adding oil. If the level is correct, verify oil viscosity matches the temperature-grade chart on page 17. Heavy oil in cold weather kills cylinder response just as surely as a leak.
Manual Section: Hydraulic System Troubleshooting GuideHydraulic system spongy and sluggish after fluid or filter service p. 118
Cycle the lift and tilt circuits 10 to 15 times at operating RPM to purge trapped air after any service involving low oil or filter replacement. Install the new filter hand-tight until the gasket contacts the head, then turn an additional 3/4 turn (page 118). Recheck reservoir level after cycling and top up to 12 US gal if needed.
Manual Section: Hydraulic SystemControl handles won't return to neutral, machine creeps or drifts at rest p. 68
Examine the control handles and pivot points for binding or damage; minor deformation prevents spring return. Run the neutral centering adjustment on both sides per page 69 before assuming a pump problem. If creep persists, measure crosstube shaft end play and adjust to 0.03 to 0.06 inches (page 68). Verify the Hydraloc solenoid engages when the restraint bar is lowered.
Manual Section: ControlsFrequently Asked Questions
How to reset the hydraulic system on a GEHL SL4835?
After removing or replacing any component in the hydrostatic drive system, prime the pump by running the engine at idle briefly. Drive the loader slowly forward and backward with no load until the noise from trapped air stops. Then stop the loader, recheck the reservoir fluid level, and add fluid if needed.
Are there hydraulic schematics in this Gehl SL4635, SL4835 manual?
Yes. The manual includes hydraulic circuit diagrams, system schematics, and component specifications with pressure ratings.
The SL4635 cranks but won't fire — where do I start?
Check the battery terminals for corrosion first; the minimum spec is 1000 CCA (page 7). Then confirm the seat switch and restraint-bar interlock are engaged, because the start circuit is interlocked through them.
Lift and tilt are dead and the hydraulic tank looks low — what's the fix?
Measure the hydraulic reservoir level first; capacity is 12 US gal and it must read at the full mark (page 17). Top up if low, then cycle the lift and tilt circuits to confirm the controls respond.
What do I get after purchasing this Gehl SL4635, SL4835 manual?
A 184-page searchable PDF downloads the moment checkout clears. Open it on your laptop, tablet, or phone, then carry it straight to the shop floor.
Can I print this manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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