ELGi TRC 1000 MN UG, Owner'S Manual

Page: 10 / 81

10
Piston and Piston rings
The pistons are of automotive type and made out of low expansion aluminium
alloy. They are provided with plain compression rings, stepped compression
rings and slotted oil control rings. The rings are made of special quality close
grained cast iron and designed for controlling wear and oil consumption to a
minimum. The gudgeon pins are of chrome steel case hardened and precision
ground.
Disc valves
Special type concentric disc valves have been used for suction and discharge
operations. The springs used are of high quality spring steel.
Intercooler, safety valve and aftercooler
The intercooler consists of a series of copper tubes, on which fins are wound
for effective cooling. It is mounted above the motor. It is provided with a safety
valve and a drain valve. The aftercooler is also made of copper tubes with fins
wound on them and arranged together for better cooling. A drain valve is
provided on the aftercooler.
Average Life
This type of coupling does not require any attention during running .
i. The coupling hubs will not require replacement earlier than six years of
continuous use.
ii. Misalignment if any in the coupling will reduce the life of the coupling
element.
General Description