One factory document, all five RT-series loaders. This Gehl rt210 service manual pdf (OEM #50940164) runs 362 pages across the RT175, RT175 Gen:2, RT210, RT210 Gen:2, and RT250 Compact Track Loaders. Wiring coverage fills 51 pages: power distribution, engine ECU, solenoid controllers, and CAN bus interfaces, split out by serial number range. Further in sit the hydraulic schematics, 18 pages of troubleshooting charts for the hydrostatic travel drive and hydraulic systems, DPF regeneration steps, and error code tables, plus 43 pages of maintenance schedules. Press the V-belt at its longest free span and measure against the 8 mm (5/16") factory limit; the hydraulic oil and return filter come due at 250 hours or every 6 months. When the RT250 is down, the bookmark you need is two taps away.
What's Inside This Gehl RT175–RT250 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| 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
Gehl RT175 hydraulic pump sluggish, lift arm slow to respond, bucket barely raises under load p. 278
Check hydraulic oil level and inspect the return filter; replace every 250 hours or 6 months per the Maintenance interval. Connect a pressure gauge and verify main relief reads 2975-3125 psi (205-215 bar) per the pressure test spec on page 278. If pressure is within spec, open hydraulic system troubleshooting on page 285 to diagnose internal leakage or valve faults.
Manual Section: Hydraulic System TroubleshootingEngine cranks slowly or won't start in cold weather, no response from starter p. 285
Verify battery voltage is 12 V at the terminals per page 46 and check for corrosion at both posts. Load-test the battery; a weak cell drops below 10.5 V under starter current. If voltage is acceptable, follow the jump-starting procedure on page 86 and cross-reference the electrical troubleshooting charts in the Troubleshooting section on page 285.
Manual Section: Electrical TroubleshootingEngine triggers coolant temperature warning repeatedly during heavy digging, machine shuts down p. 285
Inspect all cooler cores for packed debris and blow clean with compressed air. Check coolant level and test the radiator cap; it should hold 0.90 bar (13 psi) per page 41. Permissible coolant temperature is 110°C (230°F) per page 42. If shutdown occurs well below that limit, diagnose the sensor circuit using the troubleshooting charts on page 285.
Manual Section: Engine TroubleshootingTrack slips off the idler or derails repeatedly on uneven terrain, undercarriage worn p. 141
Examine the track for visible damage; per page 92, damaged tracks cannot be repaired and must be replaced. With the machine down, confirm travel motor gearbox oil at 1 L (1.06 qts.) capacity. The auto-tension system on page 141 adjusts on its own; if the track re-derails after cleaning, check the tensioner cylinder and idler bearing for wear.
Manual Section: MaintenanceRT250 pulls hard to one side, travel drive won't track straight under load p. 267
Measure resistance on both forward and reverse solenoids; spec is 2.0-3.0 ohms at 70°F per page 267. A side-to-side resistance mismatch points to a faulty solenoid before suspecting drive motor wear. Drain and refill each travel motor gearbox with 1 L (1.06 qts.) of the correct oil and retest for straight tracking after warming up.
Manual Section: Hydrostatic Travel Drive System TroubleshootingDrive belt squealing and slipping under load, battery warning light on during operation p. 132
Look the V-belt over for glazing, cracking, or fraying with the engine off. Press the belt at its longest free span; replace if deflection exceeds 8 mm (5/16 in.) per the V-belt spec on page 130. Work through the tensioning procedure in the Maintenance section; a worn belt also drags down alternator output and keeps the battery warning lamp lit.
Manual Section: MaintenanceFrequently Asked Questions
How do I reset the GEHL RT175/RT210 hydraulic or electrical system?
No single 'reset' procedure exists for the whole hydraulic or electrical system. For hydraulic pressure specifically, the manual has you relieve pressure by working the control joystick through all directions a few times (page 24). For electrical faults, it says to shut the machine off at once at any sign of trouble (page 27).
How do I clear error codes on a GEHL RT175, RT175 Gen:2, RT210, RT210 Gen:2, or RT250?
Error codes clear on their own once the underlying problem is fixed. To check whether one is still active, press and release the multi-function button several times to refresh the display. A maintenance-required screen clears by pressing and holding the interface button for 5 seconds.
What are the torque specs for GEHL RT175/RT210 track loader fasteners?
Torque figures are broken out by thread size and seal type for hydraulic fittings. An M10X1.0 thread with a sealing washer calls for 7 lb.-ft. (9 Nm), while an M48X2.0 with an elastic seal takes 398 lb.-ft. (540 Nm). Coarse-pitch and fine-pitch threads get their own values by strength class.
How do I reset the service interval or maintenance reminder on a GEHL RT175?
These screens remind you of service due at intervals like 50, 250, 500, or 750 hours. Press and hold the multi-function display interface button for 5 seconds to dismiss one. Leave it, and the screen returns after a single rotation through the other displays.
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.
Document Quality
This document is a high-quality scanned PDF with an accurate OCR layer, allowing you to search and copy text throughout. The text is consistently crisp and easy to read, with no blurriness or fading. Diagrams and illustrations are a mix of sharp vector graphics, especially for schematics, and clear raster images for photographs, with all labels remaining readable. Pages are clean and free from scan artifacts, stains, or skewed content. Please note that pages 2 and 12 are intentionally blank or designated for notes.
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