Ingersoll-Rand CENTAC Instruction Manual page 72

5.2
Symptom
High Air Temperature
Low Seal Air Pressure
Low Instrument or Valve
Operating Air Pressure
High Vibration
Centac Instruction Manual
 2000 Ingersoll-Rand Company
Date of Issue: 12 September, 2000
Possible Cause
Low or no water flow to air cooler.
Higher water temperature than
realized.
Improper temperature device
setting.
Dirty or plugged air cooler on water
side.
Low instrument air pressure.
Improper adjustment of seal air
pressure regulator.
Excessive bleed off valve
adjustment.
(If supplied).
Worn seals.
No supply pressure, pinched or
leaking air lines.
Improper adjustment of air
regulator.
Low oil temperature.
Driver to compressor misalignment.
Worn coupling or spacer.
Rotor assembly unbalance due to
foreign matter build up.
Rotor assembly unbalance due to
damaged aero parts.
Induced vibration from driver.
SECTION 5 – TROUBLESHOOTING
Corrective Action
Establish correct water flow.
Take necessary steps to lower the
water supply temperature.
Calibrate device.
Clean water passages in cooler.
Provide water strainers as
necessary. Contact Ingersoll-Rand
service representative.
See "Low Instrument Air Pressure"
below.
Adjust regulator to obtain correct
seal air pressure.
Reduce seal air bleed off.
Replace seals. Consult Ingersoll-
Rand service representative.
Establish instrument air supply
pressure. Repair or replace air
lines.
Adjust regulator to obtain correct
instrument air pressure.
Allow warm-up period for oil.
Check and correct alignment
(dowel motor feet after alignment).
Lubricate. Replace coupling and/or
spacer.
Contact Ingersoll-Rand service
representative. Cleaning and
balance check required.
Contact Ingersoll-Rand service
representative. Repair or
replacement and balance check
required.
Balance motor rotor.