Instruction manual for Water-cooled Air Compressor HV2/210 - 8 -
5.3. Lubricating oil system
The lube oil pump is a gear pump which is normally capable of operating for long periods without maintenance.
The pump is directly driven from the end of the crankshaft, and oil pressure is controlled by means of a by-pass
valve in the pump. To overhaul, dismantle the mounting flange and pipe connections, and pull the pump out.
An easily replaceable lube oil filter is fitted between the delivery side of the pump and the compressor.
IMPORTANT:
Accumulation of condensate in the crankcase may present a serious problem under certain
operating conditions, and it is important that the operator should check from the very beginning
whether condensate in the lubricating oil is liable to become a problem.
Unless the condensed water emulsifies with the lubricating oil, it will separate out and there is a risk that the
compressor will be lubricated with water.
The choise of lube oil is of great importance to the reliable operation of the compressor. The manufactorers have
performed extensive tests of lube oils for the oil companies, and the following is a list of lubricants recommended
on the basis of these tests.
A list of recommended types of oil is affixed to the compressor on delivery.
Mineral oil
Syntetic oil
BP ENERGOL RC 68
BP ENERSYN RX 100
CASTROL AIRCOL PD 100
CASTROL AIRCOL SN 100
CALTEX RPM COMPR. OIL 68
CHEVRON HD COMPR. OIL 100
ESSO/ EXXON EXXCOLUB 77
DAPHNE MARINE COMPRESSOR 100
FINA EOLAN AC
ELF PRIMERIA SG 100
GENERAL COMPOL A 100
ESSO/EXXON ZERICE S 100
MITSUBISHI COMPR. OIL 100
ESSO/EXXON SYNTESSTIC 68
MOBIL RARUS 427
MOBIL RARUS 827
NYNÄS COMPR. OIL 68
NIPPON OIL CO. FAIRCOL SA100
PHILLIPS COMPR. OIL 68
SHELL CORENA AP 68
SHELL CORENA P 68
STATOIL COMPWAY S 100
TEXACO SYN STAR DE 100
Further information about lubricants is available on application to the manufacturer.
5.4. Bearings
The compressor has replaceable, two-shell plain big-end and crankshaft bearings. The middle crankshaft
bearings serves as an axial guide for the crankshaft.
The gudgeon pin bearings are single shell plain bearings, press-fitted into the little ends. Tolerances and
clearances for connecting rod, crankshaft and gudgeon pin bearings are given in Table T.4.
All plain bearings are pressure lubricated.
After inspection or replacement of the big-end bearings it is important to ensure that the bearing does not bind on
the crankshaft. It must be possible to turn over the compressor manually.
New two-shell bearings are coated with a running-in compound at the factory.
Dismantling the gudgeon pin bearing from the connecting rod.
A. Use a hydraulic press or extractor to remove the old bearing shell.
B. Press in the new bearing shell.
C. Adjust the fit of the bearing to the gudgeon pin in accordance with Table T.4.
Summary of Contents for HV2/210
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