11
11. MAINTENANCE WORK
This chapter contains the maintenance work as well as short functional description for each component.
11.1. Lubrication :
Two lubrication systems:
•
Splashed lubrication:
Mechanic lubrication by connecting-
rod movement. Connecting-rod has a metal piece below that
splashing in the oil during the fast movement causes a spray
inside the cylinder.
•
Forced lubrication:
The oil pump is coupled to and driven by
the crank-shaft. It pumps oil from the oil pump through the oil
fine filter and a minimum pressure valve to the 3rd stage
cylinder. The oil is then distributed by the guide piston of the
3rd stage and lubricates all moving parts of the compressor
block.
Forced Lubrication
11.2. Type of oil :
Using the correct oil is of vital importance for life and maintenance of the compressor. Nardi has a particular oil studied and tested for the
best operation of his machine.Depending on the application of the compressor the requirements placed on the oil are:
•
low deposits
•
No carbonizing effect, especially in the valves
•
Good anti-corrosive properties
•
For breathing air application, also physiological and toxicological suitability.
Due to the thermal load on the compressor only high quality oil should be used. You are recommended to restrict oils to those which have
been approved by us: oil for not mixed air (21% O²).
11.3. Oil change :
Please follow the procedure as below:
•
Ensure to have a sufficient quantity of oil.
•
Run compressor warm.
•
Remove red cap from oil filler neck and drain oil while still warm by means
of oil drain plug.
•
Remove oil filter.
•
Mount a new filter element.
•
Fill new oil though filler neck to Max.—mark at sight gauge.
INSTRUCTION MANUAL PACIFIC 210
