Hydrostatic pump removal, travel drive motors and track tension cylinders lead off this Gehl RT105 service manual PDF, a 353-page factory book (Form No. 50950457) for the compact track loader that also covers the engine, lift arm, cab and CAN controls. Gehl also sells this machine as the Mustang 1050RT, and the book covers it under both names. Chassis and ROPS/FOPS electrical schematics sit beside separate DPF and non-DPF harness diagrams, plus a hydrostatic/hydraulic schematic tracing oil from the gear pump through the control valve to the lift and tilt cylinders. Diagnosis gets real room too: engine error codes, CAN troubleshooting and indicator lamp charts. Fill the hydraulic system with 30.0 L (8 U.S. gallons), and condemn the lift cylinder seals if retraction passes 19 mm (0.75 in) in 15 minutes. Chasing a drifting bucket eats your whole day. The PDF is bookmarked and text-searchable, so it takes you from the drift test to a loader holding its load again.
What's Inside This Gehl RT105, 1050RT, MUSTANG 1050RT Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 10-15 | Component Identification, Machine Model and Serial Number Locations, Indicator and Operation Symbols |
| Safety | 16-36 | Safety Symbol and Signal Words, Mandatory Safety Shutdown Procedure, Before Starting, During Operation, Applications with Load-Handling Devices, Parking the Machine |
| Lifting the Machine Using a Crane | 37 | |
| Loading and Transporting the Machine on a Transport Vehicle | 38-41 | Transport Vehicle, Loading Ramps, Tie-Down Points, Transport Regulations |
| Lubrication | 42-51 | Types of Lubricants, Lubricant Capacities, Lubrication Points, Lubrication Schedule/Intervals, Filter Table, Hydraulic Oil Reservoir, Crankcase Oil, Grease Fitting Locations |
| Maintenance | 52-68 | Maintenance Schedule, Engine Maintenance, Engine Access Cover, Engine Oil, DPF Exhaust System Service, Fuel System Maintenance, Hydraulic System Maintenance |
| Long-Term Storage | 69 | Before Storage, After Storage |
| Final Shutdown / Decommissioning | 70-71 | Fuel System, Hydraulic System, Coolant System, Battery, Electrical Switches |
| Engine | 72-133 | Engine Components, Engine Removal/Installation, Troubleshooting Guide, Engine Error Codes |
| Hydrostatic System | 134-167 | Introduction/General Information, Hydraulic Oil Analysis, Theory of Operation/How It Works, Hydrostatic System Components, Hydrostatic Pump Removal/Installation |
| Hydraulic System | 168-213 | Hydraulic System Components, Main Pressure Test and Adjustment, Gear Pump Removal/Installation, Control Valve Removal/Installation, Lift Solenoid Valve Removal/Installation |
| Schematics/Wiring Diagrams - Hydrostatic/Hydraulic and Electrical | 214-269 | Hydrostatic/Hydraulic Schematic (Chassis Electrical Schematic, ROPS/FOPS Electrical Schematic, Start Box Jumper Electrical Schematic) |
| Cab | 270-327 | Control Locations, Components, Control Adjustments |
| Lift Arm | 328-339 | Notes, Lift Arm Components, Lift Arm Adjustments, Lift Arm Support, Lift Arm Removal, Lift Arm Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic oil capacity | 30.0 L (8 U.S. gallons) | p. 42 |
| Battery Voltage | 12 V | p. 346 |
| Maximum allowable tilt cylinder circuit drifting | 0.88" (22 mm) of cylinder extension in 15 minutes | p. 197 |
| Maximum allowable lift cylinder drifting | 0.75" (19 mm) of cylinder retraction in 15 minutes | p. 202 |
| Fuse/60 Amp | 60 Amp | p. 258 |
| Fuse/ATM/15 Amp | 15 Amp | p. 258 |
| Battery Cold Cranking Amps | 800 CCA @ -18° C (0° F) | p. 346 |
| Hydraulic Oil Reservoir Tank Capacity | 30.0 L (8 U.S. gallons) / 37.9 L (10 U.S. gallons) | p. 340 |
| Auxiliary Hydraulics Pump Displacement | 19.7 cc (1.2 cu. in.) | p. 345 |
| Travel Drive System Hydraulic Pump Displacement | 400 cc (24 cu. in.) | p. 345 |
| Hydraulic Oil Reservoir Capacity | 30.0 L (8 U.S. gallons) | p. 42 |
| Engine Oil Capacity | 5.87 L (6.2 U.S. quarts) | p. 42 |
Gehl RT105, 1050RT, MUSTANG 1050RT Common Problems This Manual Covers
Gehl RT105 / Mustang 1050RT bucket drifts with tilt cylinder creeping out while controls sit in neutral
Measure tilt cylinder extension over a 15 minute period and compare it against the 0.88" (22 mm) maximum allowable drift on page 197. If the cylinder creeps past that limit, work through the bucket drift checks in the hydraulic system troubleshooting chart before you condemn the tilt circuit.
Manual Section: Hydraulic System Troubleshooting p. 197Lift arms settle down on their own with lift cylinders retracting while the control valve sits in neutral
Measure lift cylinder retraction over 15 minutes and check it against the 0.75" (19 mm) maximum allowable drift on page 202. If the arms settle faster than that, work the lift arm and drift entries in the hydraulic system troubleshooting chart and confirm the circuit before you remove the control valve.
Manual Section: Hydraulic System Troubleshooting p. 202Lift and tilt hydraulic cylinder action slow, controls barely responding when you work the bucket
Check hydraulic oil level first; the reservoir holds 30.0 L (8 U.S. gallons) per page 42. Then run the main pressure test and adjustment with the engine at 2800 rpm. Verify the reading against 195 bar (2830 psi) listed on page 344 and adjust following the hydraulic system procedure before replacing parts.
Manual Section: Hydraulic System p. 344Engine does not turn over at all when the operator tries to start the machine
Test the battery first: it should be a 12 V unit rated 800 CCA at -18° C (0° F), per page 346. Inspect the chassis harness fuses against the ratings on pages 257 and 258. Then verify the operator presence inputs, since the interlock control module governs the start cycle.
Manual Section: Engine Troubleshooting p. 346Traction drive sluggish or not operating on the right or left side track
Check hydraulic oil level, then pull a sample for the hydraulic oil analysis covered in the hydrostatic system section starting page 134. Work the right and left side drive checks in that troubleshooting chart. If you pull a travel motor, reinstall with blue thread locking compound and torque the capscrews to 131 ft-lbs (178 Nm), page 157.
Manual Section: Hydrostatic System Troubleshooting p. 134Engine overheating with coolant temperature indicator lamp lit during steady loader work
Check coolant level with the engine cold; the system holds 6.62 L (1.75 U.S. gallons) per page 42. Read any stored engine error codes against the reference. Then work the overheating entries in the engine troubleshooting guide and verify the engine coolant temperature circuit in the operation functional detail.
Manual Section: Engine TroubleshootingFrequently Asked Questions
What are the torque specifications for the engine mounting screws on the Gehl RT105?
The engine mounting screws must be installed from the bottom up with the locknuts on top. They should be torqued to 130 ft-lbs (176 Nm). p. 96
What is the procedure for checking the fan belt tension?
To check the fan belt tension, push on the belt midway between the alternator and the engine crankshaft pulley. The belt should deflect about 1/2 inch (13 mm) under a load of 20 lbs (90 N). p. 84
What is the capacity of the hydraulic oil reservoir on the Gehl RT105?
The hydraulic oil reservoir has a capacity of 8.0 U.S. gallons (30 liters). p. 47
What is the recommended interval for changing the engine oil and filter on the Gehl RT105?
The engine oil and filter should be changed every 500 hours of service. For new units, the initial oil change should be performed after the first 50 hours. p. 48
What is the procedure for testing the lift solenoid valve if it is suspected of malfunctioning?
If the lift arm can be raised or lowered while the restraint bar is raised, the lift solenoid is malfunctioning. You can test the solenoid coil by moving a thin strip of steel close to the solenoid coil; if it is magnetically attracted, the coil is working. p. 190
What do I get after purchasing this Gehl RT105 manual?
One searchable PDF covering 353 pages, delivered instantly. No disc, no shipping, no waiting on the post.
Can I print this Gehl RT105 manual?
Yes. Many mechanics print the section they need for their own shop and bring it to the bench.
Reviews
There are no reviews yet.