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3.6.1 General
Description
The lubricating system is based on a pressurised crankcase with mechanical
seals. Pressurised oil is fed right through the crosshead thrust face.
Oil is picked up via a mesh strainer, through the oil pump, then monitored by a
relief valve, back to the oil pickup, pumped through the oil cooler and then
through a full flow filter. The filter is located within the pressurised crankcase
inside the filter cap. From the filter the oil enters the auxiliary drive end
crankshaft seal cavity.
From the seal cavity the oil then passes into the crankshaft and is fed through to
the crank pin journals. Oil is fed up the con-rod to the gudgeon pin bearing and
into the gudgeon pin itself where it passes into the crosshead bushes and to the
thrust face of the crosshead. Also from the seal cavity oil passes through an
internal pipe to the main drive end where it enters the drive seal cavity, cooling
the mechanical drive seal and then relieving back into the sump.
The main drive bearing is fed from the seal cavity through a close metering
clearance plate. The front bearing is fed from the crankshaft through a small-
metered hole from the oil filter cavity.
3.6.2 Oil
Specification
Listed below are some of the INTERMECH approved oils. The customer must
consult INTERMECH during the oil selection process.
SAE 40 Oils Approved
Caltex RPM 150
Shell Corena H 150
BP Energol RC 150
SAE 30 Oils Approved
Caltex RPM 100
Shell Corena H 100
BP Energol RC 100
For ambient temperatures above 50degF (10degC), SAE 40 compressor oil
should be used.
For ambient temperatures below 50degF (10degC), SAE 30 compressor oil
should be used.
Note:
Intermech Ltd.
BBR-6015-2 Compressor Service Manual
