Every procedure in this 309-page Mustang MTL316 Service Manual (OEM #917339) traces back to one machine, from the hydraulic circuit to the final drive. The hydraulic schematics map full circuit routing, and electrical wiring and wire harness diagrams sit alongside disassembly and assembly work covering the gear pump, control valve, sub valve, pilot valve, proportional control solenoid valve, cylinders, and travel motor. Troubleshooting is sorted by system: overall machine, traveling, lift arm, bucket, auxiliary hydraulics, and HST pump faults. Need to torque the track roller fixing bolt to 241 N·m or set crawler tension between 25 and 50 mm? Both numbers live here, not on a forum. With your machine down, the factory answer beats guesswork. Bookmarked and searchable, so you can jump to any system or find a spec by keyword from your phone on the shop floor.
What's Inside This Mustang MTL316 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 3-12 | - |
| Service Data | 13-66 | Hydraulic Circuit Diagram, Electrical Wiring Diagram, Wire Harness Diagram |
| Function | 67-116 | Air Conditioner System |
| Disassembly and Assembly | 117-236 | Gear Pump, Control Valve, Sub Valve, Pilot Valve, Proportional Control Solenoid Valve, Cylinders, Travel Motor |
| Troubleshooting | 237-309 | Overall Machine, Traveling, Lift Arm, Bucket, Auxiliary Hydraulics, HST Pump |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Tightening torque section | Refer to page 28 for hydraulic hose, bite-type pipe fitting for steel pipe, joint for piping, and bolts and nuts tightening torque specifications. | p. 28 |
| Grouser height | 30 mm | p. 16 |
| Shoe width | 320 mm | p. 16 |
| Track roller A Standard dimension A | 200 mm | p. 118 |
| Track roller A fixing bolt torque | 241 N·m | p. 128 |
| Drive sproket Standard dimension A | 414 mm | p. 118 |
| Sprocket fixing bolt torque | 241 N·m | p. 129 |
| Idler Standard dimension A | 400 mm | p. 118 |
| Idler mass | 35 kg | p. 128 |
| Hydraulic hose fitting size 1/4 Union nut (G) torque | 24.5+4.9 N·m | p. 28 |
| Hydraulic hose fitting size 1/2 Taper thread (R) torque | 88.3 ±8.8 N·m | p. 28 |
| Engine oil pan capacity | 10.2 L | p. 18 |
Mustang MTL316 Common Problems This Manual Covers
Mustang MTL316 lift arm raises slowly or bucket tilt response is weak under full load
Start with the hydraulic oil level; the tank holds 58 L total (fluid capacities, page 18). If that checks out, inspect the hoses and cylinder rod seals for leaks. Cycle the arm through its full 705 mm stroke (page 17) and feel for hesitation. From there, test relief valve pressure against the 34.5 MPa drive system spec.
Manual Section: Lift Arm System TroubleshootingEngine cranks slowly or won't fire in cold weather, starter seems sluggish
Examine the battery terminals for corrosion and looseness; this machine carries an 80 A·h battery (page 16). Wire-brush both clamps, retorque, then load-test under crank. Look at the fuel filters for restriction and confirm the air filter is clean. If the starter still labors with a known-good battery, trace the starter relay through the wiring diagram.
Manual Section: Overall Machine TroubleshootingTrack keeps slipping off one side or undercarriage pounds loudly over flat ground p. 20
Measure crawler tension at the center sag point; spec is 25 to 50 mm (page 20). Adjust the tensioner grease fitting until both sides fall in that range. Inspect rollers and idlers for flat spots or seized bearings. On reassembly, torque the sprocket fixing bolts to 241 N·m (page 129) and clear debris from every track groove.
Manual Section: Disassembly and AssemblyMachine pulls hard to one side or travel speed bleeds off during grading pass
Confirm the hydraulic oil level against the 58 L capacity (page 18), then inspect both drive hose fittings for weeping. Make sure the joystick linkage moves freely and returns to neutral. Compare left and right travel motor response: if one side lags at the rated 2500 min-1 engine speed (page 16), trace the HST circuit through the traveling system troubleshooting tree.
Manual Section: Traveling System TroubleshootingEngine overheats under sustained load, temperature gauge climbs into the red zone
Inspect the radiator and hydraulic cooler for packed-in debris. Pull the engine oil and read it against the 10.2 L pan capacity (page 18), watching for milky color that signals coolant mixing in. Confirm the air filter is clean and that engine speed reaches the rated 2500 min-1 (page 16). If temperature keeps climbing under load, check that drive system pressure is set to 34.5 MPa.
Manual Section: Traveling System TroubleshootingHydraulic hose fitting weeps fluid after attachment swap or scheduled hose replacement p. 28
Verify the fitting type before you torque anything. For 1/4 union nut (G) fittings, torque to 24.5 +4.9 N·m; for 1/2 taper thread (R) fittings, torque to 88.3 ±8.8 N·m (tightening torques, page 28). Clean the mating faces, confirm the threads aren't crossed, then cycle the attachment slowly to 34.5 MPa system pressure and watch for seepage before going back to work.
Manual Section: Service DataFrequently Asked Questions
What are the torque specs for Mustang MTL316 track loader components?
Tightening torques are spelled out by component across the MTL316. Hydraulic hose union nuts run from 9.8 to 137.3 N·m and taper threads from 11.8 to 196.1 N·m. Bite-type fittings for steel pipe range from 34.3 to 411.9 N·m by outer diameter. General bolt-and-nut points (JIS strength category 10.9) span 9.8 N·m for M6x1.0 up to 452.1 N·m for M20x1.5.
How to find torque specs for Mustang MTL316
Torque values live in the manual's tightening-torque tables, grouped by fastener type. Hydraulic hose union nuts span 9.8 to 137.3 N·m and taper threads 11.8 to 196.1 N·m. Bite-type fittings on steel pipe run 34.3 to 411.9 N·m, set by the pipe's outer diameter. For general bolts and nuts in JIS strength category 10.9, the range goes from 9.8 N·m at M6x1.0 up to 452.1 N·m at M20x1.5.
What are the replacement specifications for rubber tracks?
Rubber track specs list a shoe width of 320 mm and a grouser height of 30 mm, with the crawler belt weighing roughly 157 kg. You will find these in the specifications tables and the travel system sections.
What are the replacement specifications for rollers?
Track rollers carry wear limits expressed as allowable values. For Roller A, dimension A may wear from a 200 mm standard down to an allowable 194 mm; for Roller B, it goes from 328 mm down to 320 mm. Each side of the undercarriage runs 5 track rollers.
Is this Mustang MTL316 Service Manual a digital download?
Yes. It's a 309-page searchable PDF, available the moment your checkout clears. Open it on a laptop, tablet, or phone and take it straight to the shop floor.
Am I able to print pages from this Mustang MTL316 manual?
Yes. The PDF carries no DRM, so you can print any page or section your shop needs. It works on any standard printer.
Does this Mustang MTL316 manual include hydraulic schematics?
Full hydraulic system diagrams are included, covering circuits, valve locations, and hydraulic component specs for the Mustang MTL316.
Document Quality
This document is a scanned PDF, providing an OCR text layer that allows you to search and copy text throughout the manual. The text is generally crisp and readable, making it easy to follow the instructions and information. Diagrams and illustrations are raster images, which means they may appear slightly pixelated when zoomed in, but labels and details are mostly clear. Pages are clean with no notable scan artifacts, stains, or skewed content, though there are numerous blank pages interspersed, particularly in the "Service Data" and "Wire Harness Diagram" sections.
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