This is the factory Mustang Service Manual for the ME5002, ME6002, and ME6502 compact excavators, part number 918172, a 158 page PDF. The models run Yanmar diesel power, the 4TNE88-ENSW and 4TNE98-NSR, and the manual calls out the specifications that differ between them.Inside you get technical data and lift capacity charts, scheduled maintenance and lubrication, the full hydraulic system with pump, pilot oil supply, main valve block, and swivel unit, diesel engine service, electrical wiring diagrams, operating elements, and torque specifications. Hydraulic pressure settings, idle speed, and cylinder head bolt values are listed per model where they vary.From a slow hydraulic circuit to a swivel gearbox rebuild, this manual gives you the procedures and numbers to do the work correctly. It is a searchable PDF you can download immediately and print at the bench.
What's Inside This Mustang ME5002, ME6002, ME6502 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 2-4 | Abbreviations And Symbols List, Table Of Contents, Technical Data, Dimensions, Bucket And Geometry, Lift Capacity Charts, Hydraulic Settings |
| Technical Data | 5-20 | Dimensions, Bucket and Geometry, Lift Capacity Charts, Hydraulic System Settings, Auxiliary Hydraulics, Diesel Engine Settings |
| Maintenance | 21-58 | Maintenance Schedule, Maintenance - General, Lubricants, Lubrication Chart, Hydraulic System, Hydraulic Pump, Hose Burst Protection Valve, Drive Unit |
| Hydraulics | 59-110 | Hydraulic System / Diagrams, Position of Components, Hydraulic Pump, Pilot Oil Supply Unit, Main Valve Block, Pilot Control Valves, Swivel Unit, Shuttle Valve Block |
| Diesel Engine | 111-116 | Diesel Engine Specifications, Fuel Line Diagram, Battery, Radiator, Cylinder Head Bolt Tightening / Loosening Order |
| Electrical | 117-144 | Electrical System Diagrams, Electrical System Component Positions, Electrical Wiring Diagrams, Electrical Connections, Fuse Box |
| Operating Elements | 145-154 | Machine Overview, Component Description, Cab Equipment and Controls, Lifting the Excavator |
| Torque Specifications | 155-158 | Hydraulic Fittings, General Fasteners, Diesel Engine Components, Hydraulic Pump Mounting, Swivel Unit Fasteners, Control Oil Unit Fasteners |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| ME5002 | ||
| Diesel engine cylinder head bolt (1st pass) | 64 - 69 lb-ft (87.0 - 93.0 Nm) | p. 19 |
| Diesel engine connection rod bolt | 33 - 40.5 lb-ft (45 - 55 Nm) | p. 19 |
| Main pressure limiting valve Pump P1, P2 | 3336 psi (230 bar) | p. 16 |
| Hydraulic oil tank capacity | 16.1 gals (61 L) | p. 16 |
| Hose burst protection valve clearance | 0.047" (1.2 mm) | p. 17 |
| Cylinder head bolt tightening (1st pass) | 34 - 39 lb-ft (46 - 53 Nm) | p. 54 |
| ME6002 | ||
| Main pressure limiting valve Pump P1, P2 | 3553 psi (245 bar) | p. 16 |
| Hydraulic oil tank capacity | 21.1 gals (80 L) | p. 16 |
| All Models | ||
| Pilot oil pressure | 508 psi (35 bar) | p. 16 |
| Min. revolution speed (idle) - no load | 1100 rpm | p. 18 |
| Fuel injection pressure | 3191 - 3336 psi (220 - 230 bar) | p. 18 |
| ME6002, ME6502 | ||
| Hose burst protection valve clearance | 0.059" (1.5 mm) | p. 17 |
Mustang ME5002, ME6002, ME6502 Common Problems This Manual Covers
Weak or slow hydraulic functions
Sluggish boom, arm, or bucket movement usually points to low oil, contamination, a mis-set main pressure limiting valve, or pump wear. The hydraulics chapter covers the pump, pilot oil supply, and valve blocks to trace the loss.
Manual Section: Hydraulics p. 59Track tension out of spec
Track deflection that is too loose or too tight causes uneven wear and poor tracking. The maintenance chapter gives the deflection figure and the drive unit and undercarriage checks to set it right.
Manual Section: Maintenance p. 21Hydraulic leaks at seals and hoses
Aging seals, loose fittings, and a marginal hose burst protection valve show as drips and lost pressure. The hydraulics section details the valve block and swivel unit teardown to find and cure the leak.
Manual Section: Hydraulics p. 59Engine service and cylinder head work
Coolant loss, power loss, or a head gasket job on the Yanmar engine calls for the correct bolt sequence and torque. The diesel engine chapter includes the fuel line diagram, radiator, and cylinder head tightening order.
Manual Section: Diesel Engine p. 111Electrical faults and blown fuses
No-start, dead circuits, and warning lights usually come back to connections, the fuse box, or a component position. The electrical chapter provides the system diagrams, component positions, and connections to follow the circuit.
Manual Section: Electrical p. 117Fasteners loosening after service
Fittings and mounting bolts that back off after a repair were often set by feel rather than spec. The torque specifications chapter lists values for hydraulic fittings, the pump mounting, swivel unit, and control oil unit fasteners.
Manual Section: Torque Specifications p. 155Frequently Asked Questions
Which models and engines does this manual cover?
It covers the Mustang ME5002, ME6002, and ME6502 compact excavators under part number 918172. They use Yanmar diesel engines, the 4TNE88-ENSW and 4TNE98-NSR, and per-model specifications are noted where the values differ.
Are torque specifications included?
Yes. The Torque Specifications section lists values for hydraulic fittings, general fasteners, diesel engine components, the hydraulic pump mounting, swivel unit, and control oil unit, so you can reassemble each subsystem correctly. p. 155
Does it list hydraulic pressure settings for each model?
Yes. The Technical Data section gives hydraulic settings, including the main pressure limiting valve values that differ between the ME5002 and ME6002, plus pilot oil pressure and tank capacities. p. 5
Are wiring diagrams included?
Yes. The Electrical section provides the electrical system diagrams, component positions, wiring diagrams, connections, and fuse box layout for the ME5002, ME6002, and ME6502. p. 117
How will I receive this Mustang ME5002, ME6002, ME6502 Service Manual?
Immediate download of the complete 158-page searchable Service Manual. Access it on any device — laptop at your desk or phone in the field.
Are there any print restrictions on this Mustang ME5002, ME6002, ME6502 manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Does this Mustang ME5002, ME6002, ME6502 manual include wiring diagrams?
Included. The Mustang ME5002, ME6002, ME6502 Service Manual covers complete wiring harness diagrams, electrical circuits, and connector pinouts.
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