Part of the Hyundai Repair Manuals.
Hunting for a Yanmar 3TNV88 service manual PDF? This 720-page factory service manual (OEM #M9961-02E050) covers the full TNV industrial diesel line: 3TNV82A, 84, 84T, 88, plus the 4TNV84, 84T, 88, 94L, 98, 98T, 106, and 106T, along with the R55W-7. Inside you get factory electrical circuit diagrams, hydraulic schematics tracing both main and pilot circuits, and a full troubleshooting section for hydraulic, mechanical, and electrical faults. Disassembly and assembly procedures run from the pump device to the cylinders, backed by page after page of tightening torque tables. Pulling the head? Torque the cylinder head bolts to 61.7 to 65.7 Nm; on the 4TNV106, the main bearing caps take 186.2 to 205.8 Nm. A dead engine pays nobody. This bookmarked PDF has a full text layer, so type the spec, find the number, and get back to your rebuild.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Maintenance Standard | 2 | Operational Performance Test, Major Components |
| General | 3-21 | Safety Hints, Specifications |
| Structure and Function | 22-83 | Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Rcv Pedal, Brake Pedal, Gear Box |
| Hydraulic System | 84-113 | Hydraulic Circuit, Main Circuit, Pilot Circuit, Single Operation, Combined Operation |
| Electrical System | 114-165 | Component Location, Monitoring System, Electrical Circuit, Electrical Component Specification |
| Troubleshooting | 166-232 | Before Troubleshooting, Hydraulic and Mechanical System, Operational Performance Test, Major Components |
| Disassembly and Assembly | 233-421 | Precaution, Tightening Torque, Pump Device, Main Control Valve, Swing Device, Travel Device, Gear Box, Steering Valve |
| Introduction Guide | 422-423 | Bolt Specifications, Standard Torque Values, Metric Fasteners, Cleaning Components |
| Engine System | 424-425 | Engine Accessories Mounting, Cooling System, Fuel Tank Mounting |
| Electric System | 426 | Electric Components Mounting, Battery, Alternator, Horn |
| Hydraulic System | 427-428 | Hydraulic Components Mounting, Main Control Valve, Cylinders, Boom Swing Cylinder |
| Undercarriage | 429 | Swing Bearing, Oscillating Cylinder, Gear Box, Front Axle, Rear Axle |
| Structure | 430-432 | Cab Accessories Mounting, Cowling Mounting, Cover and Foot Board |
| Work Equipment | 433-720 | Boom Cylinder, Arm Cylinder, Bucket Cylinder, Bucket Control Link, Side Cutter |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 4-valve head | ||
| Nozzle case nut tightening torque | 39.2 to 44.1 Nm (4 to 4.5 kgf·m) | p. 653 |
| All Models | ||
| Main bearing cap bolt tightening torque | 186.2-205.8 Nm (19.0-21.0 kgf·m) | p. 549 |
| Cylinder head bolt tightening torque | 61.7~65.7 Nm (6.3~6.7 kgf·m) | p. 652 |
| R55W-7 | ||
| Engine oil quantity | 9.2 L | p. 18 |
| Main pump rated pressure | 220 kgf/cm2 | p. 18 |
| Swing motor relief pressure | 200 kgf/cm2 | p. 19 |
| Travel motor relief pressure | 220 kgf/cm2 | p. 19 |
| 3TNV82A | ||
| Engine oil capacity (oil pan), 3TNV82A | 3.6 L | p. 458 |
| 3TNV84 | ||
| Engine oil capacity (oil pan), 3TNV84 | 6.7 L | p. 459 |
| 4TNV94L | ||
| Engine oil capacity (oil pan), 4TNV94L | 10.2 L | p. 465 |
| 4TNV106 | ||
| Engine oil capacity (oil pan), 4TNV106 | 14.0 L | p. 468 |
