MCH60
Nuvair
Page 25
www.Nuvair.com
Checking and cleaning
Change
11.5 Troubleshooting
Problem
Cause
Solution
The electric motor does not
start
•
Phase missing
•
Check fuses or condenser
Rotation speed and flow rate
decrease
•
Motor power too low
•
The belt slips
•
Check the motor and the line
•
Restore drive belt tension
The flow rate diminishes
without RPM decreasing
•
Valves not working
•
4th stage piston worn
•
Fittings loose / leaking seals
•
Intake filter clogged
•
Intake extension kinked
•
Piston or piston rings worn
•
Contact technical support
•
Contact technical support
•
Check for leaks with soapy
water and eliminate them
•
Replace filter
•
Straighten, use stiffer pipe
•
Contact technical support
Air smells of oil
•
Cartridge filter exhausted
•
Piston rings worn
•
Condensate not being drained
•
Replace filter
•
Contact technical assistance
•
Check auto drains and
manually drain more often
Compressor overheats
•
Direction of rotation wrong
•
Cooling tubes dirty
•
Incomplete valve closure (causing
overload of another stage)
•
Poor Ventilation
•
Check direction of rotation
•
Clean cooling tubes
•
Contact technical support
•
Contact technical support
11.6 Checking and changing the lubricating oil and filter
During the compressor initial break-in period, the original oil filter and lubricating oil must be changed at the 25-
hour runtime mark. After the initial change of lubricants and filter the oil and oil filter must be changed every
100 hours of use or annually, whichever comes first.
HP Compressor Lubricant: Only use lubricants rated for use with nitrox, such as Nuvair 455™ Synthetic Food
Grade Lubricant or Nuvair 751™.
Never mix compressor lubricants.
Nuvair Compressors are shipped with
Nuvair 455 Synthetic Food Grade Lubricant or Nuvair 751 in the compressor. Coltri OIL CE750 and Anderol
755 may also be used, but not mixed with Nuvair oil.
Annual Maintenance
Years
1
5
10
15
Air Intake Filter
Lubricating Oil & Filter Change
Condensate Separator & Filter
Hyperfilter Complete
Separator Filter Element Cleaning
HP Flex Hoses
Safety Valve
Transmission Belt Wear & Tension
Summary of Contents for MCH60
Page 1: ...Operation Manual MCH60...
Page 2: ...MCH60 Nuvair Page 1 www Nuvair com Notes...
Page 3: ...MCH60 Nuvair Page 2 www Nuvair com Notes...
Page 37: ...MCH60 Nuvair Page 36 www Nuvair com 19 0 Service Log Date Technician Name Service Performed...
Page 41: ...MCH60 Nuvair Page 40 www Nuvair com Notes...
