Specifications

14
compressor unit configurations. This system prevents oil
from building up in an 06E motor barrel during the off
cycle, thereby preventing an oil slug on start-up. The
line is either 1/4 in. (6 mm) or 3/8 in.(8 mm) tubing
interconnecting to fittings located in the bottom of the
06E crankcases. To connect to the 06E compressor
motor barrel, fitting P/N 5F20-1311 (5/8 in.-18 x 1/4 in.
MPT) is recommended. Some 50 cfm compressors have
a 1/4 in. NPT connection and do not require the 5F20-
1311 fitting. The motor barrel interconnection line is in
addition to either the crankcase oil equalization line or
the oil floats.
Never interconnect the motor barrels of 06CC compres-
sors, as the oil sump of these compressors are at interme-
diate pressure.
06E compressors will not tolerate excessive
oil charges. Laboratory tests and field
experience confirm that excess oil, especially
in 06E compressors, can cause cylinder head
gaskets and valve plates to fail, increase
compressor operating temperatures, and lead
to oil control problems. Page 12 notes the
correct oil levels.
CAUTION
!