Covering 2002-2004 Mustang 2064 and 2074 loaders, this OEM manual (#000-88025) gets your machine back to factory spec without guesswork. It carries hydraulic flow diagrams for the full Hi-Flow system, hydrostatic drive schematics, and interlock wiring for the brake, starter, and charging circuits. Step-by-step procedures run from hydrostatic pump R&I to hydraulic cylinder service, chain case assembly, and turbo charger work. Torque the 3/8-inch J.I.C. fitting to 15-25 ft-lbs and fill the engine to exactly 7 qt (6.6L) before startup. When your machine is down, that first repair attempt needs to be the right one, not a forum guess. Everything is bookmarked by section and keyword-searchable, so you can pull it up on a tablet at the machine and start wrenching.
What's Inside This Mustang 2064, 2074 Manual
| System | Pages | Key Topics |
|---|---|---|
| Specifications | 5-8 | Specifications 2064, Specifications 2074 |
| Safety | 9-25 | General Precautions, Safety Equipment, Lift Arm Stops, Roll Over Protective Structure - Removal and Installation, Safety Interlocks, Lift Arm Bypass Switch, Parking Brake |
| General Information | 26-38 | System Contamination Control, Hydraulic Fluid, Maintenance Chart, Pre-Delivery Check List, 50 Hour Check List, Access Panels, Torque Specifications and Procedures, Special Tools |
| Steering Controls | 39-44 | Troubleshooting, Neutral Centering Device - Adjustments, Steering Controls - Dual Lever |
| Hydraulic System | 45-71 | Hi-Flow, Troubleshooting, Flow Diagram, Controls, Lift Circuit Leak-Down Test, Tilt Circuit Leak-Down Test, Hydraulic Cylinder Testing, Hydraulic Cylinder Service and Repair |
| Hydrostatic Drive System | 72-89 | Troubleshooting, Flow Diagram, Flow Schematic |
| Chain Case | 90-97 | Explanation, Axle Housing R & I, Axle Housing - Assembly, Axle Assembly, Drive Chain & Sprocket - R & I, Drive Chain & Sprocket Chain Case Assembly, Troubleshooting |
| Engine | 98-110 | Troubleshooting, Engine / Hydrostatic Pump – Removal and Installation, Cooling System (Troubleshooting), Fuel System, Injection Timing, Air Cleaner, Turbo Charger |
| Electrical System | 111-125 | Instrument Panel, Interlock Circuit, Interlock Circuit Wiring Diagram, Control Module Tests, Brake Circuit Wiring Diagram, Starter Circuit Wiring Diagram |
| Accessories | 126-130 | Cab Door, Cabin Heater, Accessory Outlet / Int. Light / Beacon, Backup Alarm, Wiring Schematic, Auto Shutdown |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| J.I.C. (SAE 37° flare) Fittings Torque - 1/4" Hose & Tubing Diameter | 8-12 ft-lbs | p. 35 |
| J.I.C. (SAE 37° flare) Fittings Torque - 5/16" Hose & Tubing Diameter | 12-15 ft-lbs | p. 35 |
| J.I.C. (SAE 37° flare) Fittings Torque - 3/8" Hose & Tubing Diameter | 15-25 ft-lbs | p. 35 |
| J.I.C. (SAE 37° flare) Fittings Torque - 1/2" Hose & Tubing Diameter | 25-42 ft-lbs | p. 35 |
| Engine Oil Capacity | 7 qt (6.6 L) | p. 99 |
| Hydraulic Reservoir Capacity | 25 gallons | p. 5 |
| Cooling System Capacity | 14 quarts | p. 5 |
| Wheel Lug Nuts Torque | 180 ft-lbs (244 Nm) | p. 28 |
| Battery Voltage | 12 V | p. 5 |
| Alternator Output | 55 Amp | p. 5 |
| 2064 | ||
| Main Relief Pressure | 2500 PSI (172 BAR) | p. 5 |
| 2074 | ||
| Main Relief Pressure | 3000 PSI (207 BAR) | p. 7 |
Mustang 2064, 2074 Common Problems This Manual Covers
Mustang 2064/2074 lift arms won't raise or hydraulic action is slow and jerky p. 48
Start by checking the hydraulic fluid level in the 25-gallon reservoir and looking for contamination or a milky appearance. Pull the filter and examine it for debris. Work through the slow or jerky action troubleshooting steps on page 48 to isolate the pump, control valve, or cylinder. Test each circuit on its own before pulling any components.
Manual Section: Hydraulic SystemMachine pulls hard to one side, loader won't travel in a straight line p. 73
Measure hydrostatic drive charge pressure: normal range is 350-375 psi (24-26 bar) per page 79. Low pressure on one side points to a bypassing pump or a failing charge circuit. Compare left and right drive motor response, then check the neutral centering device adjustment. Confirm the drive motor mounting bolts are torqued to 120 ft-lbs (163 Nm) before opening any drive circuit components.
Manual Section: Hydrostatic Drive SystemEngine won't crank or turns over slowly, starter clicks but machine won't start p. 118
Confirm battery voltage holds at 12V under load before testing anything else. Clean the battery terminals and ground straps of corrosion. Work through the starter circuit troubleshooting procedure on page 118, checking for blown fuses, a failing solenoid, or broken wiring. If the starter spins but won't engage the flywheel, look at the bendix drive and ring gear.
Manual Section: Electrical SystemSudden complete loss of drive on one side, wheel spinning free with no resistance p. 91
Inspect the chain case right away for oil leaks at the drive axle flange, a telltale sign of chain or sprocket failure inside. Check the axle housing flanged nuts and torque any loose ones to 180 ft-lbs (244 Nm) per page 91. Pull the access cover, look over the drive chain for a broken link or jumped sprocket, and check the chain case oil for metal debris.
Manual Section: Chain CaseEngine overheating, temperature gauge in the red, steam visible from engine compartment p. 98
Compare coolant level against the 14-quart system capacity. Clear the radiator core of packed debris or mud and blow it out from the clean side with compressed air. Test the radiator cap for pressure retention and check every hose connection for seeping. Make sure the thermostat isn't stuck closed. If temperature keeps climbing, check for head gasket failure per the cooling system procedures on page 104.
Manual Section: EngineParking brake won't release after sitting, indicator light stays on, machine won't move p. 111
Walk through the safety interlock conditions: the seat, lap bar, and door switches each have to signal the control module correctly. Check that battery voltage sits at 12V before tracing the brake circuit. Inspect the brake linkage for corrosion or seized pivot points. Test each switch in the interlock chain for continuity using the brake circuit wiring diagram starting on page 117.
Manual Section: Electrical SystemFrequently Asked Questions
Where are the torque specs for Mustang 2064/2074 components?
The manual lists torque values in several places. For J.I.C. (SAE 37° flare) hoses and fittings, the table on page 35 runs from 8 to 250 ft-lbs across the size range. Specific fasteners differ: drive motor mounting nuts take 180 ft-lbs (244 Nm), and the M12 sprocket bolt takes 87 ft-lbs (118 Nm), both detailed on page 87. Hydraulic cylinder locking nuts have their own values: 240-280 ft-lbs (325-380 Nm) for lift cylinders and 300-330 ft-lbs (407-447 Nm) for tilt cylinders, found on page 61.
How do I troubleshoot a Mustang 2064/2074 hydraulic issue?
For hydraulic problems, work from the 'HYDRAULIC SYSTEM TROUBLESHOOTING' section starting on page 48. Its table pairs common symptoms with likely causes. Slow or jerky action, for example, can trace back to low hydraulic fluid, cold oil, or insufficient engine speed. If there's no hydraulic action at all, check the fluid level and make sure the safety lock isn't holding the controls in "neutral".
How do I bleed the fuel system on a Mustang 2064/2074?
Bleeding the fuel system follows the 'Priming Diesel Fuel System' procedure on page 106. Stroke the pump knob until fuel flows from the vent plug, then tighten the vent plug and pump knob until you feel slight resistance. If the engine still runs rough, loosen the vent screw on the banjo fitting of the injection pump fuel return pipe and stroke the filter pump knob to release trapped air.
Mustang 2064 torque specs
Torque figures for the Mustang 2064 appear across several sections. The page 35 table covers J.I.C. (SAE 37° flare) hoses and fittings from 8 to 250 ft-lbs. Drive motor mounting nuts call for 180 ft-lbs (244 Nm), and the M12 sprocket bolt calls for 87 ft-lbs (118 Nm), both on page 87. For hydraulic cylinder locking nuts, lift cylinders take 240-280 ft-lbs (325-380 Nm) and tilt cylinders take 300-330 ft-lbs (407-447 Nm), found on page 61.
What do I get after purchasing this Mustang 2064, 2074 manual?
The download is instant. After payment, the full 130-page searchable Service Manual is yours to open on a laptop, tablet, or phone right in the shop.
Am I able to print pages from this Mustang 2064, 2074 manual?
No restrictions. Print single pages, full chapters, or the whole manual. The PDF is completely unlocked.
Does this Mustang 2064, 2074 manual include hydraulic schematics?
Yes. It includes hydraulic system diagrams, circuit schematics, and component specifications.
Document Quality
This document is a scanned PDF, meaning you cannot select or copy text directly, nor is it searchable via an OCR layer. The text quality is generally crisp and easy to read throughout, with minimal blurriness or fading. Diagrams, illustrations, and photos are raster images, which appear clear enough for labels and details, though they will pixelate if you zoom in significantly. Page condition shows typical scan artifacts like dark spots and lines along the left edges, and some pages are slightly skewed. You will also find several filler pages featuring only the 'Mustang Replacement Filters' logo.
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