F
OR
M
ODELS
: JGI, JGM, JGN, JGP
AND
JGQ
S
ECTION
5 - M
AINTENANCE
PAGE 5-2
weight differential, refer to “Opposed Throw - Reciprocating Weight Balancing” on page 1-5.
CAUTION
TO PREVENT PERSONAL INJURY, BE SURE THAT COMPRESSOR CRANKSHAFT
CANNOT BE TURNED BY THE DRIVER OR COMPRESSOR CYLINDER GAS
PRESSURE DURING MAINTENANCE: — ON ENGINE-DRIVEN COMPRESSORS,
REMOVE THE CENTER COUPLING OR LOCK THE FLYWHEEL. — ON ELECTRIC
MOTOR-DRIVEN COMPRESSORS, IF IT IS INCONVENIENT TO DETACH THE DRIVER
FROM THE COMPRESSOR, THE DRIVER SWITCH GEAR MUST BE LOCKED OUT
DURING MAINTENANCE.
BEFORE STARTING ANY MAINTENANCE OR REMOVING ANY COMPONENTS,
RELIEVE ALL PRESSURE FROM THE COMPRESSOR CYLINDERS. (REFER TO
PACKAGER’S INSTRUCTIONS FOR COMPLETELY VENTING THE SYSTEM.)
CAUTION
AFTER PERFORMING ANY MAINTENANCE, THE ENTIRE SYSTEM
MUST BE PURGED WITH GAS PRIOR TO OPERATION, TO AVOID A
POTENTIALLY EXPLOSIVE AIR/GAS MIXTURE.
!
!