This problem is usually due to omission of vibration
pads or an uneven weight distribution on the pads. Shut
unit off and apply weight to different corners of the unit.
Shim out excessive rocking. Use adjustable levelers for
Belt guards often produce a vibrating noise even under
CHART 5-WON'T PUMP AIR
CHECK FOR PLUGGED
DISCONNECT TUBE AT
REPLACE OR REPAIR
PUMP, SEE "PUMP
normal operating conditions. Readjust to eliminate or
reduce vibration noise.
Sometimes, even normal operation of the compressor
is considered excessive in noise or vibration. In such cases,
a remote air intake, adjustable pads, and air-line vibration
isolators may be required. Isolators are stocked by