Setting track tension, checking pump pressure, or pulling a boom cylinder on a PC95R-2 hydraulic excavator this morning goes quicker with this 328-page Komatsu PC95R-2 shop manual PDF open beside you. Wiring diagrams trace the electrical circuits, and hydraulic schematics follow oil from the pump group through the control valve to the boom, arm, bucket, and blade cylinders. Removal and installation takes up most of the book, from the injection pump and swing motor to the final drive, idler, and recoil spring, while Testing and Adjusting covers engine speed, compression, and injection timing. Hold track-shoe tension to 20 to 25 mm between track roller and shoe, and check that P1 and P2 safety pressure reads 324 ± 4.9 bar. A wrong guess costs you the part, a second teardown, and a crew standing idle. With section bookmarks and a text layer you can search, the PDF takes you straight to the page that gets the machine digging again.
What's Inside This Komatsu PC95R-2 Manual
| System | Pages | Key Topics |
|---|
| Structure and Function | 17-28 | Track Frame, Swing Machinery |
| Maintenance Standard | 29-68 | Track Frame, Idler, Carrier Roller |
| Testing and Adjusting | 69-126 | Engine Speed, Compression Pressure, Fuel Injection Timing |
| General Procedures and Engine Components | 127-141 | Manual Reading, Special Tools, Starter Motor, Alternator, Injection Pump, Injection Nozzle |
| Engine Cooling and Exhaust Systems | 142-152 | Thermostat, Exhaust Pipe, Muffler, Cylinder Head, Radiator |
| Fuel and Hydraulic Tank Systems | 153-159 | Fuel Tank, Hydraulic Oil Tank, Pump Group |
| Engine-Pump Coupling and Swing Machinery | 160-182 | Engine-Pump Coupling Joint, Gear-Pump, Swing Motor, Swing Machinery, Control Valve |
| Revolving Frame and Counterweight | 183-185 | Revolving Frame, Counterweight |
| Undercarriage and Swing Circle | 186-194 | Swing Circle, Track Shoes, Sprocket Assembly, Final Drive, Idler, Recoil Spring, Track Roller, Carrier Roller |
| Control Valves and Pedals | 195-201 | R.H. PPC Valve, L.H. PPC Valve, Blade PPC Valve, Travel Pedal Control, 1st Boom Swing Pedal Control |
| Work Equipment Cylinders and Components | 202-328 | Boom Cylinder, 2nd Boom Cylinder, Arm Cylinder, Bucket Cylinder, Boom Swing Cylinder, Blade Cylinder, Swing Bracket, Blade |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Standard tightening torque for bolts and nuts (Thread diameter 6mm, Pitch 1mm, Width across flat 10mm, 8.8 grade) | 9.5 ± 1 Nm | p. 10 |
| Standard tightening torque for bolts and nuts (Thread diameter 6mm, Pitch 1mm, Width across flat 10mm, 10.9 grade) | 13.5 ± 1.5 Nm | p. 10 |
| P1 pump (Safety) pressure | 324 ± 4.9 bar | p. 72 |
| P2 pump (Safety) pressure | 324 ± 4.9 bar | p. 72 |
| Track-shoe tension (distance between track roller and track-shoe) | 20 - 25 mm | p. 96 |
| Fan belt deflection (used belt) | 10 - 15 mm | p. 91 |
| Fan belt deflection (new belt) | 7 - 9 mm | p. 91 |
| Cabin weight | 250 kg | p. 147 |
| Engine hood weight | 36 kg | p. 148 |
| Engine Speed (High Idling) | 2400 ± 25 rpm | p. 86 |
| Engine Speed (Low Idling) | 1100 ± 25 rpm | p. 86 |
| Compression Pressure (Normal) | 35 ± 1 kg/cm² | p. 70 |
