Sperre HV1/140A, Руководство по обслуживанию

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Sperre Air Compressor
Two stage, water cooled
Model: HV1/140A
Assembly of valves demands precision, care and forethought. Make sure that the various parts
are correctly located and that the right numbers are installed. Compare with the lists and
drawings of parts to ensure that the right number of parts is present. Total lifting heights of valve
plates are given in Table T.4.
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 driven direct from the end of the crankshaft, and the lube oil pressure
is controlled by means of a by-pass valve in the pump. When maintenance is to be performed,
loosen the pump flange, disconnect the oil pipes and withdraw the pump.
On the suction side of the pump there is a filter which can be easily dismantled for cleaning.
For the lubrication of the LP side of the piston, the compressor is fitted with a small piston pump,
driven by an eccentric from the crankshaft. The oil for the piston pump is taken from a separate
reservoir mounted on the side of the compressor. The type of oil used in the compressor
crankcase should also be used in the separate reservoir. The quantity of oil fed to the LP suction
valve can be adjusted by means of a regulating valve, fitted on the suction side of the pump.
When the compressor is warm, the normal feed should be
3-5 drops per minute.
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 choice of lube oil is of great importance to the reliable operation of the compressor. The
manufacturers 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.
Following synthetic lubricants are tested and recommended by SPERRE:
•
BP ENERSYN RX 100
•
CASTROL AIRCOL SN 100
•
CHEVRON HD COMPR. OIL 100
•
DAPHNE MARINE COMPRESSOR 100
•
ELF PRIMERIA SG 100
•
ESSO/EXXON SYNTESSTIC 68
•
MOBIL RARUS 827
•
NIPPON OIL CO. FAIRCOL SA100
•
STATOIL COMPWAY S 100
•
TEXACO SYN STAR DE 100
5.4. Bearings
The compressor has replaceable, two-shell plain big-end bearings. The crankshaft bearings are
two-row ball bearings.
The gudgeon pin bearing is a single shell plain bearing, press-fitted into the little end. Toler-
ances and clearances for connecting rod, crankshaft and gudgeon pin bearings are given in
Table T.4, page 37.
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