GENERAL MAINTENANCE NOTES
PRESSURE RELIEF VALVE: The pressure relief valve is an automatic pop valve. Each valve is properly adjusted for the maximum pressure of the unit on which it is installed. If it should pop, it will be necessary to drain all the air out of the tank in order to reseat properly, or drop pressure in line. Do not readjust.
TANK DRAIN VALVE: Drain valve is located at bottom of tank. Open drain valve daily to drain condensation. Do not open drain valve if tank pressure exceeds 25 psig. The automatic tank drain equipped compressor requires draining manually once a week.
PRESSURE SWITCH: The pressure switch is automatic and will start compressor at the low pressure and stop when the maximum pressure is reached. It is adjusted to start and stop compressor at the proper pressure for the unit on which it is installed. Do not readjust.
COMPRESSOR VALVES (CCE10): Once per year or if compressor fails to pump air or seems slow in filling up tank, disconnect unit from power source remove valve plate and clean thoroughly, using compressed air. The valve plates can be reached by removing the cylinder head. The cylinder head is held by four capscrews. After cleaning exceptional care must be taken that all parts are replaced in exactly the same position and all joints must be tight or the compressor will not function properly. When all valves are
COMPRESSOR VALVES (CCE20, CCE30, CVE50): Once per year or if compressor fails to pump air or seems slow in filling up tank, disconnect unit from power source and remove valves and clean thoroughly, using compressed air and a soft wire brush. The valve plates can be reached by removing the cylinder head. Each cover is held by four capscrews. Take care not to damage the “O”-Ring seal under the top of the cover. After cleaning exceptional care must be taken that all parts are replaced in exactly the same posit
Valves must be replaced in original position. Valve gaskets should be replaced each time valves are serviced.
CHECK VALVE: The check valve closes when the compressor stops operating, preventing air from flowing out of the tank through the unloader solenoid valve. After the compressor stops operating, if air continues to escape through the unloader solenoid valve, it is an indication that the check valve is leaking. This can be corrected by removing check valve and cleaning disc and seat. If check valve disc is worn badly, replace same.
BELTS: Drive belts must be kept tight enough to prevent slipping. If belts slip or squeak, see V-belt maintenance in preceding section.
MOTOR LUBRICATION: Long time satisfactory operation of an electric motor depends in large measure on proper lubrication of the bearings. Bearing grease will lose its lubricating ability overtime, not suddenly. Refer to the motor manufacturer’s instructions for the type of grease and lubrication intervals.
PILOT VALVE: (Optional - Dual Control Units Only) The pilot valve actuates the head unloader mechanism to provide a means of stopping or starting the compression of air by the compressor without stopping or starting the electric motor.