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SK1020-5

> Specifications  > Features  > Charts  > Standard Equipment

> Optional Equipment   > Need a Quote?
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ENGINE-EPA TIER II CERTIFIED   
Model    Komatsu S4D98E-2NFD 
Type    Diesel engine, 4 cycle 
Bore x stroke  3.85 x 4.334 in  98 x 110 mm 
Number of cylinders    4 
Displacement  203 in³  3.4 ltr 
Combustion    Direct injection 
Aspiration    Turbocharged 
Rated power:     
(SAE J1349)  84HP @ 2500 rpm  62kW @ 2500 rpm 
Max. torque  211 ft.lb. @1600 rpm  286 Nm @1600 rpm 
Cooling system    Water 
Air filter    Dry type with safety element 
Starting system    Electric motor with pre-heating air system for cold weather 0° C (32° F) 
 
Transmission   
Type    Hydrostatic 
Pumps    2 x variable displacement with 2 stage and APC system. 
Motors    2 x axial piston with two speeds. 
Final transmission with heavy duty type roller chains immersed in oil bath connected to the four driving axles.     
Speeds:     
Working  6.5 mph  10 km/h 
Travel  10.0 mph  16 km/h 
Sealed wet-disc parking brakes with automatic engagement when operator exits the cab.     
 
Hydraulic System   
Type    Komatsu 
Pump    Gear 
Max. flow - auxiliary hydraulic  21 gal/min  80 ltr./min 
Max. pressure - auxiliary hydraulic  3,045 psi  210 bar 
Control valve    3 elements fully Servo-controlled 
High flow auxiliary hydraulic system “SUPER FLOW” (OPTIONAL):     
Max. flow  34 gal/min  130 ltr./min 
Max. pressure  3,045 psi  210 bar 
 
Loader   
Performance without rear counterweights
Operating load (ISO 5998)  		2,000 lb  907 kg 
Tipping load (ISO 8313)  4,000 lb  1814 kg 
Bucket breakout force (ISO 8313) with short lip bucket  5,038 lb  2290 kg 
Bucket breakout force (ISO 8313) with long lip bucket  4,279 lb  1940 kg 
 
Controls   
Proportional Pressure Control (PPC) joystick levers. The left hand joystick controls the travel, the right joystick controls the loader equipment. The PPC foot pedal controls the auxiliary hydraulic circuit for attachments. Control levers are inoperative when the operator arm rest bar is raised or the operator is not seated.

Control pattern change valve is optional equipment. The optional control pattern splits the travel and the loader controls between both joystick levers. 
 
Electric System   
Rated voltage    12 V 
Battery    100 Ah 
Alternator    40 A 
 
Service Refill Capacities   
Hydraulic system  13.0 US gal.  50.0 ltr. 
Fuel tank  19.0 US gal.  73.0 ltr. 
Chain cases  8.3 US gal.  32.0 ltr. 
Engine oil  3.2 US gal.  12.5 ltr. 
Engine coolant  2.0 US gal.  8.0 ltr. 
 
Tires   
Optional    12-16.5 10PR heavy duty flotation tires 
    33 x 15.5 - 16.5 10PR super wide flotation tires 
 
Operating Weight   
Operating weight of machine with standard bucket,full tank of fuel and an 176 lb / 80 kg operator (ISO 6016)  7,573 lb.  3435 kg 

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