ELGi TRC 1000 MN UG, Руководство пользователя, Страница: 15 / 81

15
General
Only a skilled technician who knows about the compressor should dismantle
and reassemble the compressor. Before dismantling the compressor, make
sure that it is free of compressed air. Pull the safety valve and ensure this.
Ensure that the electric power is disconnected from the unit.
Accessories
Remove the intercooler after removing the respective pipe fittings and bolts.
Remove the aftercooler and suction filters. Open the drain plug and drain the
oil from the crank case.
Cylinder head, Disc valves, Cylinder
Remove the cylinder head and take out the disc valve. Take care not to damage
the disc valves.While dismantling the disc valve, the position of the springs
should be carefully noted which will help during reassembling. Refer the
exploded view of the disc valve which is self explanatory. If damaged; the
springs should be replaced with new ones. Also check the packings and if
necessary replace by new ones.
Unscrew the cylinder and remove the cylinder. If the cylinders are tightly fixed
to the crankcase rotate the fly end hub. The cylinders will automatically come
up.
Piston assembly
Remove the circlip by using a criclip plier and gently knock out the gudgeon
pin. Inspect for scratces or slackness in the piston boss. If the pin is worn out
use a new pin. Remove the piston rings using a piston ring expander.
Clean the piston rings and the ring grooves in the piston. Measure the piston
size, gudgeon pin bore size, piston ring gaps at butts and side clearances.
Replace the rings as a set when limiting clearances have been reached.
Crankshaft assembly
Disassemble the disc coupling. Then remove the free and cover. Remove the
crankshaft assembly through the fly end cover bore along with the cover.
Using puller remove the fly end cover from the crankshaft assembly. Clean the
crankshaft and connecting rod assembly thoroughly in kerosene and dry with
compressed air. Inspect the bearings, if found damaged, replace them with
new ones.
Repairs