Cap.7 _ Maintenance
pag.
44
Use and maintenance manual
MCH-36
7.4 - SCHEDULED MAINTENANCE TABLE
7.5 - TROUBLESHOOTING
Every
Every
Every
250
500
1000
3000
Maintenance
5 hours
day
year
(hours) (hours) (hours) (hours)
Lubricating oil level check
Automatic shutdown check
Condensate container discharge
Belt wear and tension
Air intake filter
Fitting/hose leak check
Oil filter and oil change
Separator filter element cleaning
1st – 2nd – 3rd stage valve replacement
4th stage valve replacement
Water and HP oil separator replacement
HP filter body replacement
Problem
Cause
Solution
- The electric motor
• Phase missing
• Check fuses or condenser
does not start
- Rotation speed and flow
• Motor power too low
• Check the motor and the line
rate decrease
• The belt slips
• Restore proper belt tension
- The flow rate diminishes
• Valves not working
• Contact technical assistance
without rpm decreasing
• 4th stage piston worn
• Contact technical assistance
• Fittings loose /
• Check for leaks with soapy
leaking seals
water and eliminate them
• Intake filter clogged
• Replace filter
• Intake extension kinked
• Straighten, use stiffer pipe
• Piston or piston rings worn
• Contact technical assistance
- Air smells of oil
• Cartridge filter exhausted
• Replace
• Piston rings worn
• Contact technical assistance
- Compressor overheats
• Direction of rotation wrong
• Check direction of rotation
• Cooling tubes dirty
• Contact technical assistance
• Incomplete valve closure
• Contact technical assistance
(causing overload of another stage)
Checking and cleaning
Change