This is the factory service manual for the Mustang 2026 and 2041 skid-steer loaders, part number 917171, covering 164 pages of service, testing, and adjustment for the machines and their Yanmar 3TNV88-XMS2 and 4TNV88-XMS2 engines.Sections cover specifications, safety, lubrication, the mainframe and liftarm, wheel drives and chaincases, the operator controls, the hydrostatic drive, the work hydraulic system, the electrical system, and the engine. Reference data includes fluid capacities, the 190 bar main hydraulic system pressure, the 163 N.m wheel nut torque, and drive chain deflection settings.Owners and mechanics can use it to test and adjust the hydrostatic and hydraulic circuits, set drive chain tension, troubleshoot electrical relays and switches, and service the Yanmar engine. The PDF is searchable and bookmarked, so you can locate a procedure quickly and print just the pages you need for the job.
What's Inside This Mustang 2026, 2041 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 2-6 | Manual Purpose and Scope, Manual Structure and Content, Safety and Hazards, Assistance and Contact Information, Trademark Notice, Tire Options, Buckets and Capacities, Safety |
| Specifications | 7-8 | Tire Options, Buckets and Capacities, General Specifications |
| Safety | 9-16 | - |
| Lubrication | 17-20 | Hydraulic Oil Reservoir, Crankcase Oil, Hydraulic Oil Tank Drain Procedure, Chaincases, Chaincase Oil Change Procedure, Grease Fitting Locations, Cooling System Drain Procedure |
| Mainframe | 21-40 | Introduction, Engine Access Cover Removal and Installation, Rollover Protective Structure Removal and Installation, Seat Removal and Installation, Seat Slide Replacement |
| Wheel Drives | 41-46 | Introduction, Drive Chain Adjustment, Drive Chain Removal and Installation, Axle Removal and Installation |
| Controls | 47-68 | Introduction, Control Handle Removal and Installation, Control Handle Position and Tracking Adjustment, Dual Control Weldment Removal and Installation - T-Bar Controls |
| Hydrostatic System | 69-80 | Introduction, Troubleshooting Guide, Charge Pressure Test and Adjustment, Hydrostatic Pump Relief Valves, Drive Motor Hot-Oil Shuttle Valve |
| Hydraulic System | 81-112 | Introduction, Troubleshooting Guide, System Pressure Test - Control Valve, Tilt Cylinder Test, Self-Leveling Valve Test, Self-Leveling Valve Adjustment, Lift Cylinder Test |
| Electrical System | 113-132 | Introduction, Operation, Troubleshooting Guide, Relay Test and Operation, Electrical Circuits, Seat Switch Removal and Installation, Restraint Bar Switch Removal and Installation |
| Engine | 133-154 | Introduction, Troubleshooting Guide, Engine Oil Filter Element Removal and Installation, Air Cleaner Assembly Removal and Installation, Air Filter Element Removal and Installation |
| Back Cover | 164 | Mustang Manufacturing Company, Inc., Address, Website, Copyright Notice |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Wheel nut torque | 120 ft.-lbs. (163 N•m) | p. 44 |
| Engine Oil Filter Element Replacement Interval | every 250 hours of service | p. 18 |
| Engine Air Filter Element Replacement Condition | when restriction gauge shows in the red zone | p. 139 |
| Antifreeze Coolant Mixture | 50% water, 50% ethylene glycol | p. 17 |
| Chaincases Oil Capacity (each) | 7.6 L | p. 7 |
| Hydraulic Reservoir Capacity | 30 L | p. 7 |
| Main Hydraulic System Pressure | 190 bar | p. 7 |
| Starter Power | 2.0 kW | p. 7 |
| 2026 | ||
| Engine Oil Capacity | 7.6 US qts. (7,2 L) | p. 7 |
| Fuel Tank Capacity | 39 L | p. 7 |
| 2041 | ||
| Engine Oil Capacity | 9.1 US qts. (8,6 L) | p. 7 |
| Fuel Tank Capacity | 47 L | p. 7 |
Mustang 2026, 2041 Common Problems This Manual Covers
Slow or weak lift and tilt
Weak or slow bucket lift and tilt point to control valve, cylinder, or self-leveling valve issues. The hydraulic system section covers the system pressure test, tilt cylinder test, and self-leveling valve test and adjustment.
Manual Section: Hydraulic System p. 81Machine drives crooked or lacks drive power
A loader that pulls to one side or lacks drive speed often has a charge pressure or relief valve fault. The hydrostatic system section covers the charge pressure test and adjustment and the pump relief valves.
Manual Section: Hydrostatic System p. 69Loose or noisy drive chains
Stretched drive chains cause slack, noise, and lost drive. The wheel drives section covers drive chain adjustment, removal, and installation using the specified deflection values.
Manual Section: Wheel Drives p. 41Electrical relay or switch faults
Seat switch, restraint bar switch, or relay problems can stop the machine from operating even when it runs. The electrical section covers relay test and operation, the circuits, and switch removal and installation.
Manual Section: Electrical System p. 113Hard starting or low engine power
A clogged air filter, dirty oil filter, or fuel issues leave the Yanmar engine hard to start or down on power. The engine section covers the troubleshooting guide and filter service.
Manual Section: Engine p. 133Control handles drift or track off-center
Handles that will not hold neutral or track unevenly need adjustment. The controls section covers control handle removal, installation, and position and tracking adjustment.
Manual Section: Controls p. 47Frequently Asked Questions
Which loaders does this manual cover?
It is the service manual for the Mustang 2026 and 2041 skid-steer loaders, part number 917171, with Yanmar 3TNV88-XMS2 and 4TNV88-XMS2 engines. It runs 164 pages.
Does it list the wheel nut torque and system pressures?
Yes. The specifications cover the 190 bar main hydraulic system pressure, the 163 N.m wheel nut torque, engine oil and fuel capacities, and general specifications for both models. p. 7
Can it help me test and adjust the hydrostatic drive?
Yes. The hydrostatic system section includes a troubleshooting guide, the charge pressure test and adjustment, the pump relief valves, and the drive motor hot-oil shuttle valve. p. 69
Can I search the manual and jump to sections?
Yes. This PDF has a text layer and bookmarks, so you can search a term or spec and move straight to the right section instead of scrolling through every page.
What format is this Mustang 2026, 2041 manual in?
It's a 164-page searchable PDF, available to download the moment you check out. Open it on a laptop, tablet, or phone and take it straight to the shop floor.
Can I print this Mustang 2026, 2041 manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Are hydraulic system diagrams in this Mustang 2026, 2041 Service Manual?
Included. Hydraulic system schematics cover all circuits, control valves, and component specifications for the Mustang 2026, 2041.
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