This Gehl service manual covers the CTL85 compact track loader (Gehl form number 917338), powered by the Kubota V3800DI-T diesel engine and applying from serial number 225000001. It runs 331 pages with a full text layer and factory bookmarks for quick navigation.The manual is built for technicians and organized into safety, service data, function, disassembly and assembly, and troubleshooting. Service data includes the electrical wiring and wire harness diagrams, set pressures, capacities, and general tightening torque values, while the disassembly section covers the HST pump, gear pump, control and sub valves, cylinders, and travel motor.With it you can chase a no-travel or weak-hydraulic complaint, check undercarriage wear against allowable values, rebuild pumps and valves, and service the electrical and air conditioner systems correctly. It downloads as a PDF you can print or search.
What's Inside This Gehl CTL85 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 3-12 | - |
| Service Data | 13-58 | Electrical Wiring Diagram, Wire Harness Diagram |
| Function | 59-108 | Air Conditioner System |
| HST Pump | 138-188 | - |
| Gear Pump | 189-193 | - |
| Gear Pump (High Flow) | 194-198 | - |
| Control Valve | 199-204 | - |
| Sub Valve | 205-213 | Control Valve (High Flow) |
| Pilot Valve | 214-220 | - |
| Cylinders | 221-236 | Proportional Control Solenoid Valve |
| Travel Motor | 237-258 | - |
| Troubleshooting | 259-331 | Overall Machine, Traveling, Lift Arm, Bucket, Auxiliary Hydraulics, HST Pump |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bolts and nuts (JIS strength category 10.9) - M6 x 1.0 General tightening points | 9.8 ±0.5 N·m | p. 30 |
| Crawler tension | 25 to 50 mm | p. 20 |
| Track roller A - Allowable value A | 208 mm | p. 110 |
| Sproket - Allowable value A | 402 mm | p. 110 |
| Idler - Allowable value A | 394 mm | p. 110 |
| Hydraulic hose - 1/4 hose fitting size - Union nut (G) torque | 24.5+4.9 N·m | p. 28 |
| Hydraulic oil tank filter replacement interval | Every 1000 hrs | p. 18 |
| Fuse box - FUSE 1 | 10A | p. 46 |
| Battery terminals tightening | fasten terminals tightly | p. 10 |
| Lever play (Arm) | 4 +0/-0.5 mm | p. 20 |
| Engine Oil Pan Capacity | 13.2 L | p. 18 |
| Hydraulic Oil Tank Capacity | 60 L | p. 18 |
Gehl CTL85 Common Problems This Manual Covers
No high-range travel speed
Owners have reported the high-range travel function quitting on a CTL85 after around 1000 hours. This points to a travel-speed control or hydraulic fault, which the Troubleshooting section addresses under traveling and overall machine.
Manual Section: Troubleshooting p. 259Weak or lost hydraulic power
Slow response or a total loss of performance usually traces to low hydraulic fluid, leaks, or worn hydraulic components. The Disassembly and Assembly section covers rebuilding the HST pump, gear pump, and control valve.
Manual Section: Disassembly and Assembly p. 109Undercarriage wear on rollers and sprockets
Rollers, sprockets, and idlers wear out over time on any track loader and change how the machine tracks. The Disassembly and Assembly section lists allowable dimensions so you can measure wear and decide what to replace.
Manual Section: Disassembly and Assembly p. 109Hard starting or electrical faults
Starting trouble or inconsistent control behavior often comes from electrical faults in the wiring or connectors. The Service Data section includes the full electrical wiring diagram and wire harness diagram for tracing circuits.
Manual Section: Service Data p. 13Erratic joystick or control response
Weak maneuvering or unpredictable joystick response can stem from hydraulic pressure loss or a control fault. The Troubleshooting section covers the lift arm, bucket, and auxiliary hydraulics so you can trace the affected circuit.
Manual Section: Troubleshooting p. 259Air conditioner or cab function issues
Poor cab cooling or an unresponsive climate system needs the system understood before parts are swapped. The Function section explains how the air conditioner system operates on the CTL85.
Manual Section: Function p. 59Frequently Asked Questions
Which machine and engine does this manual cover?
It covers the Gehl CTL85 compact track loader under form number 917338, powered by the Kubota V3800DI-T diesel engine, and applies from serial number 225000001. It is written for technicians servicing the machine.
Does it include torque specs?
Yes. The Service Data section lists general tightening torque values by bolt size and strength category, plus hydraulic hose fitting torque figures, so you can tighten hardware and fittings to spec. p. 13
Can I check track and undercarriage wear with it?
Yes. The Disassembly and Assembly section lists allowable values for the track roller, sprocket, and idler, plus the crawler tension range, so you can measure wear and set tension correctly. p. 109
How will I receive this Gehl CTL85 Service Manual?
You get a 331-page searchable PDF (20 MB) that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Can I print specific sections of this Gehl CTL85 Service Manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Can I find hydraulic circuit diagrams in this Gehl CTL85 manual?
Yes, this Gehl CTL85 Service Manual includes hydraulic system diagrams, circuit schematics, and component specifications.
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