INFORMATION
12
January 2011 / W-SC3 Mobile / EN
When it is not possible to drain the oil from the radiator
every time the oil is changed, one should pump out the
engine oil as good as possible from the engine sump and
increase the oil change intervals to every 50 running
hours.
2.5.13 Alternator cooling
The alternator is cooled by cooling liquid. The capacity of
the system depends on the capacity of the radiator piping
and other parts of the cooling system. We recommend not
using water but cooling liquid that is marketed for the use
in combustion engines. Cooling liquid protects the system
against frost until minus 25° C. Also it protects the system
against corrosion. Filling of the alternator cooling system
has to be done via the expansion tank. When the system
is on temperature the liquid will expand and the redundant
liquid will be pressed into the expansion tank. This tank
has to be filled up till the mark. On the tank is an overflow
connection. This should be open. A hose can be
connected to drain the overflow to outside the vehicle.
When cooling liquid is not available clean fresh water
could be used with an additive of anti freeze. When using
water with anti freeze the right mixture has to be
calculated according to the information of the supplier of
the anti freeze. The cooling system is not pressurised.
2.5.14 Technical
data
GENERAL
Model
W-SC3 mobile
RPM
3000
Alternator
water cooled, synchronous
Engine
Kubota diesel, model OC60 (Japan)
Number of cylinders
1
Displacement
276 cm3
Bore X stroke
72x68 mm
Combustion air consumption
0,38 m3/min. at nominal RPM
Continuous power engine
2,5 kW
Cooling system
Oil cooling by radiator
Cooling water pump
PTO driven Whisper Power self priming impeller pump, type K
Fuel lift pump engine
electric pump (12 V DC), additional pump available upon request
Starting battery (optional)
55-90 Ah
Fuel consumption
0.7-1.4 litre/hour, load dependent
Control
Digital Diesel Control including automatic start/stop
ELECTRICAL SPECIFICATIONS
Output voltage
230V 50 Hz alternating current (AC) single phase
Output rating
3,6 KVA cos phi = 0,8; 3 KVA = 3 kW cos phi = 1
Voltage tolerance
± 5%
Frequency tolerance
± 5%
Alternator
brushless, two pole, synchronous
valve
,
Figure 6: Pressure valve in the return line to prevent the
engine to overflow as a result of siphoning
W-SC3
