This is the factory service manual for the Mustang MTL325 track loader, part number 917340, built around the Kubota V3800DI-T diesel rated at 68.3 kW. The 331 page PDF is the same reference a dealer technician works from, covering disassembly and assembly, inspection, maintenance, and troubleshooting, with a searchable text layer.It is organized into safety, service data, function, disassembly and assembly, and troubleshooting sections. Service data holds the specifications, tightening torques, and wiring diagrams, while the disassembly chapters detail the HST pump, gear pump, control valve, pilot valve, cylinders, and travel motor, including the high flow variants.Owners, independent mechanics, and restorers can download it instantly and print the pages they need, so the torque tables, fluid capacities, and rebuild procedures for the MTL325 stay within reach at the bench.
What's Inside This Mustang MTL325 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 |
|---|---|---|
| Hydraulic hose fitting size 1/8 Union nut (G) torque | 9.8+4.9 N·m | p. 28 |
| Hydraulic hose fitting size 1 Taper thread (R) torque | 196.1 ±19.6 N·m | p. 28 |
| Hydraulic oil tank capacity | 60 L | p. 18 |
| Hydraulic oil total amount | 95 L | p. 18 |
| Air cleaner type | Centrifugal, Filter paper | p. 16 |
| Fuel system filter type | Filter paper | p. 16 |
| Engine cooling system capacity | 16.5 L | p. 18 |
| Engine cooling system replacement interval | Every 1000 hrs | p. 18 |
| Hydraulic oil replacement interval | Every 1000 hrs | p. 18 |
| Fan belt tension adjustment | 8 mm yield when 98N force applied | p. 302 |
| Belts tension maximum | 120 lb max | p. 108 |
| Battery type | 130E41R | p. 16 |
Mustang MTL325 Common Problems This Manual Covers
Weak or one-sided track drive
Tracks that pull to one side or feel weak under load usually point to travel motor wear, a hydraulic imbalance, or track tension out of spec. The Travel motor chapter covers its disassembly and assembly, and crawler tension should be 25 to 50 mm.
Manual Section: Travel motor p. 237Loss of drive power or HST fault
A machine that will not move or loses drive under load points to the hydrostatic transmission. The HST pump chapter provides the teardown, inspection, and reassembly procedure; travel pressure is rated at 34.3 MPa.
Manual Section: HST pump p. 138Slow or weak loader arm
Sluggish or uneven lift and bucket movement often comes from a worn or sticking control valve or contaminated oil. The Control valve chapter details the disassembly and inspection needed to restore function.
Manual Section: Control valve p. 199Reduced hydraulic flow or pump wear
A general drop in hydraulic speed and force across all functions usually traces to a worn gear pump. The Gear pump chapter gives the disassembly, measurement, and reassembly steps.
Manual Section: Gear pump p. 189Cylinder drift or leak
A lift arm or bucket that settles under load, or visible seepage at a rod, points to worn cylinder seals. The Cylinders chapter covers disassembly, seal replacement, and reassembly.
Manual Section: Cylinders p. 223Overheating or power loss
Rising temperature or lost power during heavy work ties back to low coolant, a dirty radiator, a slipping belt, or low hydraulic fluid. The Troubleshooting section isolates the cause across the machine; cooling system capacity is 16.5 L.
Manual Section: Troubleshooting p. 259Frequently Asked Questions
Which machine and engine does this manual cover?
It covers the Mustang MTL325 track loader, part number 917340, powered by the Kubota V3800DI-T diesel. The PDF runs 331 pages.
Where do I find the torque specs?
The Service Data section holds the tightening torque tables, for example a JIS 10.9 coarse M6 x 1.0 bolt at 9.8 plus or minus 0.5 N.m and a 1 taper thread hose fitting at 196.1 plus or minus 19.6 N.m. p. 13
What is the hydraulic oil capacity and change interval?
The Service Data section lists a hydraulic oil tank capacity of 60 L, a total system amount of 95 L, and a replacement interval of every 1000 hours. p. 13
Are the wiring diagrams included?
Yes. The electrical wiring diagram and wire harness diagram are part of the service data, giving you the circuits needed to trace electrical faults. p. 37
How quickly can I access this Mustang MTL325 manual after buying?
Instant PDF download. The full 331-page searchable Service Manual is yours the moment payment clears. Open it on a laptop, tablet, or phone right in the shop.
Can I print specific sections of this Mustang MTL325 Service Manual?
Yes, print as many copies as you want; there are no restrictions. Plenty of mechanics print only the section they need and carry it to the shop floor.
Are there hydraulic schematics in this Mustang MTL325 manual?
Full hydraulic system diagrams are included, covering circuits, valve locations, and hydraulic component specs for the Mustang MTL325.
Reviews
There are no reviews yet.