This is the factory service manual for the Mustang ME8003 compact excavator, powered by the Yanmar 4TNV98-VNS diesel engine rated at 57 hp (42.5 kW) at 2100 RPM. The 184 page manual, part number 918170, covers the machine from operation and specifications through the engine, hydraulic system, electrical system, and optional equipment.
With it, owners and independent mechanics can service the engine, check and adjust hydraulic pressures, bleed the hydraulic system, replace filters, set track tension, and torque undercarriage and fitting fasteners to the correct values. Wiring diagrams and general torque tables are included for electrical and reassembly work.
The download is a searchable PDF you can read on any device, and you can print it page by page for use in the shop.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Operation | Machine Overview, Cab Controls, Instrument Panel Legend, Tilting the Cab, Operator's Seat Adjustments, Battery Master Switch | |
| Specifications | Engine Specifications, Hydraulic System Specs, Electrical System Specs, Tightening Torques, Lift Capacities, Machine Dimensions | |
| Maintenance | Maintenance Safety, Fluids and Lubricants, Maintenance Schedule, Fuel System Service, Engine Oil and Filter Change, Hydraulic System Checks | |
| Engine | 4TNV98 Engine Overview, Fuel System Diagram, Valve Tip Clearance Adjustment, Injection Nozzles Check, Engine RPM Adjustment, Coolant Thermostat Check | |
| Hydraulic System | Hydraulic Pump Components, Main Valve Block, Drive Counterbalancing System, Pilot Valves, Travel Drive, Swivel Unit | |
| Electrical System | Ohm's Law, Measuring Equipment, Fuse Box, Relays, Alternator, Wiring Diagrams | |
| Options | Air Conditioning System, Counterweight, Extended Dipper Arm, Hydraulic Coupling Connections, Auxiliary Hydraulics Connections | |
| General Torque Specifications | Hydraulic Fittings (Light Application), Hydraulic Fittings (Heavy Application), Coarse-Pitch Thread Torques, Fine-Pitch Thread Torques |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Track roller torque | 203 lbf.-ft. (275 Nm) | p. 37 |
| Drive pinion torque | 133 lbf.-ft. (180 Nm) | p. 37 |
| Hydraulic system air bleeding (implied) | Cycle all front attachment hydraulic functions and recheck hydraulic oil level | p. 80 |
| Hydraulic hose replacement interval | every six years from the date of manufacture | p. 81 |
| Hydraulic fittings with O-ring (M10 x 1.0) torque | 11 lbf.-ft. (15 Nm) | p. 38 |
| Pin diameter | 2 in. (51 mm) | p. 45 |
| Hydraulic return oil filter replacement interval | After no more than 1500 service hours (yearly) | p. 79 |
| Hydraulic oil filter insert replacement interval (Customer) | Every 1000 hours | p. 54 |
| Track tension deflection | 3/4–1 in. (20–25 mm) | p. 83 |
| Engine Model | 4TNV98-VNS | p. 31 |
| Engine Output | 57 hp (42.5 kW) @ 2100 RPM | p. 31 |
| Fuel Tank Capacity | 24.6 gal. (93 L) | p. 32 |
