Komatsu — 1.2 Specifications

1. General (9) 4TNV98 * Engine oil capacity may differ from the above depending on an engine installed on a machine unit. ** Engine mass and dimensions without radiator 10 Engine name Unit 4TNV98 Engine specification class - CL VM Type - Vertical, in-line, 4-cycle, water-cooled diesel engine Combustion chamber - Direct injection Number of cylinders - 4 Cylinder bore stroke mm mm 98 110 Displacement L 3.318 Continuous rating Revolving speed Min-1 1500 1800 - Output kW (hp) 30.9 (42.0) 36.8 (50.0) - Rated output Revolving speed Min-1 1500 1800 2000 2200 2400 2500 Output kW (hp) 34.6 (47.0 41.2 (56.0) 41.9 (57.0) 45.6 (62.0) 49.3 (67.0) 51.1 (69.5) Max.

no-load speed ( 25) min-1 1600 1895 2180 2400 2590 2700 Ignition order - 1-3-4-2-1(No.1 cylinder on flywheel side) Power take off - Flywheel Direction of rotation - Counterclockwise (viewed from flywheel) Cooling system - Radiator Lubrication system - Forced lubrication with trochoid pump Starting system - Electric Applicable fuel - Diesel oil-ISO 8217 DMA, BS 2869 A1 or A2 (Cetane No.45 min.) Applicable lubricant - API grade class CD or CF Lubricant capacity (oil pan) * Total L 10.2 Effective L 4.5 Coolant water capacity (engine only) L 4.2 Engine dimensions ** (with flywheel housing) Overall length mm 719 Overall width mm 498 Overall height mm 717 Engine mass (dry) ** (with flywheel housing) kg 248 (equivalent to SAE#3) 235 (equivalent to SAE#4) Cooling fan (std.) mm 410 mm O/D, 6 blades pusher type Crankshaft V pulley diameter & Fun V pulley diameter (std.) mm 130 130