This is the Gehl service manual for the RT175, RT175 Gen:2, RT210, RT210 Gen:2, and RT250 compact track loaders, factory publication 50940164. Its 362 pages cover the 4TNV98 series and TD3.6 L4 diesel engines used across the range.Sections run from safety and full specifications through controls, operation, and scheduled maintenance, then into lift arm and ROPS/FOPS removal, model specific engine removal and installation, hydraulic equipment, pressure tests, and electrical diagnostics. A dedicated troubleshooting section and complete wiring schematics back up the repair procedures.You get fluid and hydraulic capacities, relief pressures, DPF regeneration procedures, filter intervals, and torque specifications for each model. It is the reference owners and independent mechanics need to service the drivetrain, hydraulics, and electronics on these Tier 4 track loaders.
What's Inside This Gehl RT175–RT250 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 13-20 | Safety Symbol, Contents and Use of this Manual, Safety Symbol and Signal Words, Safety Alert Symbol, Signal Words, Machine Orientation, Proper Machine Use, Service and Registration |
| Safety | 21-36 | Additional Safety Equipment, Applications with Load-Securing Devices, Battery Hazards, Before Starting, Crystalline Silica Exposure, Decals, During Operation, Electrical Energy |
| Specifications | 37-48 | Coolant Compound Table, Dimensions, Electrical System, Engine, Features, Fluid Capacities, Hardware Torques, Hydraulic System |
| Controls | 49-72 | Switches/Indicators, Multi-Function Display Screens (Screen Access, Status, Maintenance and Error Code Screens, Configuration Screens, Audible Alerts) |
| Operation | 73-120 | Operational Checks, Before Operation, Starting the Engine, Warm Up, Run-In Period, Diesel Particulate Filter (DPF) Regeneration Procedures, After Operation, Jump-Starting |
| Maintenance | 121-164 | Maintenance Schedule, Maintenance Interval, Engine Maintenance, Engine Oil, Engine Air Filters, Engine Cooling System, V-Belt Maintenance, DPF Service |
| Lift Arm and ROPS/FOPS | 165-182 | Lift Arm Removal, Lift Arm Installation, ROPS/FOPS Removal, ROPS/FOPS Installation |
| Model RT250 Engine Removal/Installation | 183-208 | Engine Removal – Model RT250 (Disconnect Condenser: Connector, Lines), Remove Engine Compartment Cover, Disconnect Engine Compartment Access Door Harness |
| Models RT175/RT210 Tier 4 Engine Removal/Installation | 209-234 | Engine Removal (Model: RT175, RT210), Foot Tub, Fuel Sender Electrical Connection, Rear Fuel Tank Line, Front Fuel Tank Line, ROPS/FOPS Tilt Prop Bar |
| Models RT175/RT210 Engine Removal/Installation | 235-264 | ROPS/FOPS Tilt Prop Bar (Model: RT175, RT210), ROPS/FOPS Tilt Stop Plates (Model: RT175, Hydraulic Pump Electrical Connections, Hydraulic Pump, Hose/Cable Clamps |
| Hydraulic Equipment | 265-276 | Self-Level Valve, Float/Hydraglide™ Valve, Travel Drive Motors (Idle Speed, Speed Adjustment), Travel Motor Gearbox Oil |
| Hydraulic Pressure Tests | 277-280 | High-Flow Pressures |
| Electrical Components | 281-282 | Control Modules |
| Electronics Diagnostic Kit | 283-284 | Diagnostic Kit Operation, CAN Data Port Cover, CAN Data Connection, Indicator Lamp Troubleshooting |
| Troubleshooting | 285-302 | Engine Troubleshooting, Indicator Lamp Troubleshooting, Seal and Hose Troubleshooting, Hydraulic System Troubleshooting, Hydrostatic Travel Drive System Troubleshooting |
| Schematics | 303-354 | Model RT250, Engine Sensors – Models RT250, Engine ECU – Models RT250, Power Distribution/Fuses – Models RT250, Power Distribution/Relays – Models RT250 |
| Torque Specifications | 359-362 | Hydraulic Fittings with Various Seals (Straight Pipe Fitting with Thread and Screwed Plug, Non-Return Valve with Elastic Seal, Identification Aid Outside Ø) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Hydraulic fittings with various seals (light application) - M10X1.5 thread | 13 (18) lb.-ft. (Nm) | p. 359 |
| Hydraulic oil and return filter replacement interval | 250 Hours (or every 6 months) | p. 121 |
| Track tension system operation | automatically adjust to the correct tension | p. 141 |
| Rubber track replacement | Damaged tracks cannot be repaired and must be replaced | p. 92 |
| V-belt deflection | not more than 8 mm (5/16”) | p. 132 |
| Radiator Cap Pressure | 0.90 bar (13 psi) | p. 41 |
| Battery Volts | 12 V | p. 46 |
| Forward and Reverse Solenoids Resistance | 2.0 - 3.0 ohms at 70F | p. 267 |
| Main Relief Pressure | 2975-3125 psi (205-215 bar) | p. 278 |
| Permissible Coolant Temperature | 110° C (230°F) | p. 42 |
| RT175, RT175 Gen:2, RT210, RT210 Gen:2 | ||
| Engine Oil Capacity (with filter) | 10.4 L (11 qts.) | p. 37 |
| RT250 | ||
| Engine Oil Capacity (with filter) | 8.9 L (9.5 qts.) | p. 37 |
Gehl RT175–RT250 Series Common Problems This Manual Covers
Hydraulic functions slow or weak
When lift, tilt, or travel functions become slow or intermittent, it often means low fluid, a clogged filter, or a pump problem. The manual gives the high flow pressure checks, with a main relief pressure of 2975 to 3125 psi to compare against.
Manual Section: Hydraulic Pressure Tests p. 277Track tension and undercarriage wear
These loaders use auto track tension, so tension faults, worn rollers, or track wear show up as unstable track handling. The maintenance section covers the tension system, undercarriage checks, and rubber track replacement.
Manual Section: Maintenance p. 121DPF regeneration problems
A diesel particulate filter that will not complete regeneration can put the machine into a derated state. The operation section documents the DPF regeneration procedures and the conditions that trigger them.
Manual Section: Operation p. 73No start or dash fault codes
Intermittent no start and warning behavior on the multi function display usually trace to battery, wiring, sensor, or interlock faults. The troubleshooting section covers engine and indicator lamp diagnosis.
Manual Section: Troubleshooting p. 285One track slow or weak travel drive
A weak travel drive or one slow track points to a travel motor or drive circuit issue. The hydraulic equipment section covers the travel drive motors, idle and speed adjustment, and gearbox oil.
Manual Section: Hydraulic Equipment p. 265Overheating under load
Repeated temperature warnings come from a restricted cooling system, low coolant, or a worn belt. The maintenance section covers the engine cooling system, V-belt service, and the permissible limits to work to.
Manual Section: Maintenance p. 121Frequently Asked Questions
Which models does this manual cover?
It covers the Gehl RT175, RT175 Gen:2, RT210, RT210 Gen:2, and RT250 compact track loaders in one 362 page service manual, factory publication 50940164.
Are wiring diagrams and schematics included?
Yes. The schematics section provides model specific coverage including engine sensors, engine ECU, and power distribution for fuses and relays across the RT range. p. 303
Does it list torque specifications?
Yes. The torque specifications section covers hydraulic fittings with various seals, including straight pipe fittings and non return valves with elastic seals. p. 359
How often should the hydraulic oil and filter be changed?
The maintenance schedule calls for hydraulic oil and return filter replacement every 250 hours or every 6 months, with full procedures in the maintenance section. p. 121
How quickly can I access this Gehl RT175–RT250 Series manual after buying?
Checkout triggers an instant download of the 362-page searchable PDF. Open it on a laptop, tablet, or phone, and carry it straight to the shop floor.
Am I able to print pages from this Gehl RT175–RT250 Series manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Are there hydraulic schematics in this Gehl RT175–RT250 Series manual?
Yes. The manual includes hydraulic circuit diagrams, system schematics, and component specifications with pressure ratings.
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