All 208 pages of this Gehl AWS36, AWS46 Service Manual (OEM #918265 Rev A) target the 2008 All-Wheel-Steer Loader: both models, from hydrostatic drive calibration to full axle disassembly. Inside, hydraulic schematics trace the complete work circuit, priority valve, and load stabilizer system, while 12 pages of hydraulic system information, including test reports, diagrams, and cylinder seal repair include separate test reports for each model. Steering diagrams break out the AWS36 and AWS46 independently, and wiring coverage spans fuse boxes, relay logic, blocking diodes, and complete electric diagrams for both machines. Torque the wheel nuts to 390 ±10 Nm, then confirm your 50-liter hydraulic tank is topped before commissioning the system. No more chasing a wiring fault with a multimeter and a prayer. Bookmarked and searchable; open it on your phone before you touch the machine.
What's Inside This Gehl AWS36, AWS46 Manual
| System | Pages | Key Topics |
|---|---|---|
| Operation | 9-26 | Important Information About This Manual (Abbreviations/Symbols), Brief Description (Hydrostatic Drive, Work Hydraulics and Four-Wheel Steering, Cooling System), Machine Overview |
| Maintenance | 41-80 | Introduction (Important Information on Maintenance and Service Work), Fluids and Lubricants, Index to Component Maintenance, Explanation of Symbols on Maintenance Label |
| Engine | 81-100 | F4M 2011/BF4M 2011 Engine: Overview, Engine Oil Cooling, Fuel System, Checking and Adjusting Valve Clearance, Replacing the Fuel Injection Pump |
| Power Train | 101-118 | Variable-Displacement Pump Test Ports — Model AWS36, Variable-Displacement Pump — Model AWS36, Variable-Displacement Pump Test Ports, 12 Mph — Model AWS46 |
| Axles | 119-150 | Axle Overview, Sealing Service, Bevel Gear Shaft Seals, Differential Cage/Differential Lock Screw Connections, Overview of Differential Lock and Differential Cage |
| Brakes | 151-156 | Brake Circuit, Brake Diagram, Handbrake Circuit, Inching Valve Circuit, 12 Mph (20 Kph), Service Brake |
| Steering | 157-170 | Steering Circuit for Model AWS36, Steering Diagram for Model AWS36, Steering Circuit for Model AWS46, Steering Diagram for Model AWS46 |
| Hydraulic System | 171-182 | Test Report for Model AWS36, Test Report for Model AWS46, Work Hydraulics Oil Supply, Control Valve Ports, Priority Valve Ports, Priority Valve Diagram, Load Stabilizer Ports |
| Electrical System | 183-208 | Ohm's Law, Measuring Equipment and Methods, Terminal Description, Cable Color Coding (Other Color Codes), Relays (Use, Mode of Function, Terminal Description on Relay), Starter |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Wheel nut torque | 288 ±7 lb.-ft. (390 ±10 Nm) | p. 37 |
| Track-rod end (steering cylinder) torque | 207 ±7 lb.-ft. (280 ±10 Nm) | p. 37 |
| Engine Displacement | 189.7 in.³ (3109 cm³) | p. 27 |
| Engine Oil Capacity | 11.2 qt. (10.5 L) | p. 42 |
| Hydraulic Oil Tank Capacity | About 132 gals. (50 L) | p. 42 |
| Fuel Tank Capacity | About 159 gals. (60 L) | p. 42 |
| Intake Valve Clearance (cold engine) | 0.01 in. (0.3 mm) | p. 27 |
| Alternator Output | 12 V, 95 A | p. 32 |
| Max. Steering Hydraulic Line Pressure | 2538–2611 psi (175–180 bar) | p. 30 |
| Front Tire Pressure | 36 psi (2.5 bar) | p. 36 |
| AWS36 | ||
| Max. Work Hydraulic Service Pressure | 3046 psi (210 bar) | p. 30 |
| AWS46 | ||
| Max. Work Hydraulic Service Pressure | 3626 psi (250 bar) | p. 30 |
Gehl AWS36, AWS46 Common Problems This Manual Covers
Gehl AWS36/AWS46 hydraulic functions slow or weak, especially after cold start, bucket barely moves p. 171
Check hydraulic oil level with the machine parked on level ground; the tank holds 50 L and even a slight shortfall will cavitate the pump. Scan all pressure lines and hose clamps for wet spots. Verify oil viscosity matches the specification on page 42. With level confirmed, cycle lift and tilt fully 3-4 times to clear trapped air.
Manual Section: Hydraulic System Maintenance and Cylinder Seal ReplacementLift and tilt cylinders jerk or hesitate, won't reach full stroke smoothly p. 177
Cycle lift and tilt through full stroke 5-6 times at idle to bleed trapped air back to the reservoir. Check oil level after cycling and top up to the 50 L tank capacity. If jerkiness persists, inspect cylinder seals using the procedure on page 177; piston torque on reassembly is 443 lb.-ft. (600 Nm).
Manual Section: Hydraulic System Maintenance and Cylinder Seal ReplacementEngine sounds alarm then shuts down unexpectedly, warning lights active on dashboard p. 98
Check engine oil level immediately; capacity is 11.2 qt. (10.5 L) and low pressure triggers automatic shutdown. Let the machine cool before restarting if the coolant temp alarm fired. Work through the engine troubleshooting chart on page 98 to identify whether the root cause is low oil pressure, a cooling system fault, or a faulty sensor before returning to work.
Manual Section: Engine TroubleEngine runs rough or loses power noticeably, produces black smoke under load p. 98
Check air filter condition first; a plugged element starves combustion. On a cold engine, verify intake valve clearance of 0.01 in. (0.3 mm) using the adjustment procedure in the Engine section. For smoke or power-loss patterns, work through the engine troubleshooting chart on page 98, which covers rough idle, overheating, insufficient output, and all smoke types.
Manual Section: Engine TroubleElectrical breaker trips and won't stay reset, or accessory circuit stops working mid-shift p. 183
Locate the tripped breaker and reset it only after identifying the fault in the circuit. Check cables for chafing or bare contact, then test battery voltage; alternator output should be 12 V at 95 A under load (page 32). If the breaker trips again, trace the circuit using the wiring diagram on page 200 to isolate the short.
Manual Section: Electrical System Checks and Battery MaintenanceFrequently Asked Questions
What are the torque specs for wheel lug nuts on a GEHL AWS36/AWS46?
The torque specification for wheel nuts on GEHL AWS36/AWS46 models is 288 ±7 lb.-ft. (390 ±10 Nm). This information can be found in the "Hardware torques" section of the manual. Always check the wheel nuts for tightness after every wheel or tire change.
What are the torque specs for loader arm or attachment hardware on a GEHL AWS36/AWS46?
The manual provides general capscrew torque specifications based on dimensions, which can be applied to various hardware. For example, an M16x1.5 capscrew (Grade 8) should be tightened to 214 lb.-ft. (290 Nm). Specific torque values for general loader arm or attachment hardware are not explicitly listed, but the maintenance schedule on page 47 indicates that "Loader unit (pin locking)" and "Counterweight (attachment)" screws and nuts should be checked for tightness and tightened if necessary.
What does the warning light or error code mean on a GEHL AWS36/AWS46?
The manual provides an overview of indicators and warning lights. For example, indicator 37 (red) signifies a hydraulic oil filter issue, indicating high pressure in the hydraulic return line. Indicator 38 (red) warns of high hydraulic oil temperature, exceeding 203°F (95°C), which poses a risk of hydraulic damage.
What are the replacement specifications for Hydraulic oil?
For the hydraulic oil tank, the manual specifies using HVLPD 46 (HYD0530) hydraulic oil or biodegradable oils like AVILUB Syntofluid 46 or PANOLIN HLP Synth 46. The total capacity of the hydraulic oil tank is approximately 132 gallons (50 L). It is important to use only the same type of authorized oils and to always add hydraulic oil using the filling screen.
Is this Gehl AWS36, AWS46 Service Manual a digital download?
Immediate download of the complete 208-page searchable Service Manual. Access it on any device — laptop at your desk or phone in the field.
Can I print specific sections of this Gehl AWS36, AWS46 Service Manual?
None at all — the PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Are there wiring harness diagrams in this Gehl AWS36, AWS46 manual?
Yes — full electrical schematics are included with wire colors, connector locations, and circuit descriptions.
Document Quality
This document is a scanned PDF with an effective OCR layer, allowing you to search and copy text from most pages. The text throughout is crisp and easy to read, ensuring good legibility. Diagrams and illustrations are a mix of high-quality raster images and vector-style drawings, with all labels remaining clear. While some pages exhibit minor scanning skew, the overall page condition is clean with no distracting marks or stains. Please note that several blank or mostly blank filler pages are included in the document.
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