R1040 MAINTENANCE MANUAL
Page 9 of 48
It is recommended to use ‘multi grade oil’ considering the maximum and minimum ambient
temperatures.
No guarantee claims will be entertained on the grounds of engine damages due to use of unsuitable
engine Lube oils.
Atmospheric
Temperature range in C
Viscosity no
-20
0
to +20
0
SAE 10W30
-10
0
to +50
0
SAE 15W40
-5
0
to +45
0
SAE 20W40
Note:
The anticipated lowest temperature at the time of engine starting should be used as reference
in winter. While in summer the highest anticipated temperature of the day should be used as
reference.
2.5
Fuel supply system
2.5.1
F
uel Circuit
Fuel is supplied to the block type fuel pump by a fuel lift pump (feed pump) incorporated in the
fuel pump itself. A dual type spin-on fuel filter consisting of efficient pre and micro paper
filter cartridges ensures the supply of clean fuel to the fuel pump. The schematic diagram (Fig.
2.5.1) shows the fuel circuit of the engine.
Fig. 2.5.1
NOTE:
It the fuel tank is to be installed below the fuel pump level, and then the bottom level
of the fuel tank should be less than 1 meter below the feed pump inlet
2.5.2
Fuel Specifications
The performance of the engine depends upon supply of clean and correct grade of
fuel. The fuel injection equipment is manufactured to very close tolerances and
slightest amount of dirt in fuel can cause wear on the injection equipment. Following
points are important in use of fuel on Kirloskar R1040/1080 series engines.
The following specifications are approved: -
• BS: 2869-A1&A2 (In case of A2, note sulphur content)
