918070/FP0811 1-5 Printed in U.S.A.
Engine
Hydraulic System
Engine 503Z 603
Engine Model Serial Numbers AH00579 and up:
Yanmar 4TNV88-BPNS
EPA Tier III
Serial Numbers AH00645 and up:
Yanmar 4TNV98-ZVNS
EPA Tier III
S/N AC02471-AH00578:
Yanmar 4TNV88-PNS
EPA Tier II
S/N AC02513-AH00644:
Yanmar 4TNV98-VNS
EPA Tier II
Type Water-cooled 4-stroke, 4 cylinder diesel engine
Displacement 134 cu. in. (2.19 L) 202 cu. in. (3.32 L)
Bore and Stroke 3.5 x 3.5 in. (88 x 90 mm) 3.9 x 4.3 in. (98 x 110 mm)
Horsepower (DIN) 37.8 hp (28.2 kW) @ 2400 rpm 57.0 hp (42.5 kW) @ 2100 rpm
Max. Torque 102 lb.-ft. (138 Nm) @ 1100 rpm 184 lb.-ft. (249 Nm) @ 1400 rpm
Max. Engine Speed (with no load) 2575 +/- 50 rpm 2275 +/- 50 rpm
Idle Engine Speed 1050 +/- 50 rpm
Fuel Injection System Direct injection
Starting Aid Glow plug (Preheating time 10-15 seconds)
Max. Inclined Angle (engine still sup-
plied with oil)
25° in all directions
Note: The machine’s theoretical climbing ability
(30°/ 58%) exceeds this angle!
Exhaust Emission Compliance 97/68 EC; U.S. EPA
Engine Oil Capacity 8.2 qts. (7.8 L) 10.7 qts. (10.1 L)
Engine Coolant Capacity 7.4 qts. (7.0 L)
Hydraulic System 503Z 603
Pump Two variable-displacement + two gear pumps
Flow Rate 2 x 14.2 gpm + 10.9 gpm + 3.0
gpm @ 2590 rpm
(2 x 53.6 L/min + 41.4 L/min
+11.6 L/min) @ 2590 rpm
2 x 15.7 gpm + 11.8 gpm + 2.5
gpm @ 2290 rpm
(2 x 59.6.1 L/min + 44.7 L/min +
9.6 L/min) @ 2130 rpm
Operating Pressure (working and driving) 3408 psi (235 bar) 3553 psi (245 bar)
Operating Pressure (swing unit) 3336 psi (230 bar) 3480 psi (240 bar)
Hydraulic Fluid Cooler Standard
Hydraulic Reservoir (system capacity) 21.1 gal. (80 L)
Filter Return filter
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