Inspection:
•
Check the pump housing, rotor, idler gear, idler pin and cover for wear and chipped or
broken teeth. There must not be any deep scratches or grooves on the following:
ID surface of the housing
OD of the rotor
End face of the rotor
OD of the idler
Either face of the idler
Inside surfaces of the cover, including the crescent.
•
Replace worn parts as needed.
Assembly of Pump:
•
Place the idler onto the cover assembly.
•
Position the gaskets on the cover.
Note: Gaskets are supplied with each pump so that proper internal end clearances are
maintained. The typical end clearance for CC model pumps is .003" to .005".
When pumping thinner viscosity fluids or a drop-off in capacity has occurred because of
excessive endplay of the rotor, removal of one or more of the cover gaskets may moderately
improve performance.
•
Install the mechanical seal. For model CC009, insert the spring, rotating member and
seal seat into the seal bore cavity. Reinstall the retaining ring. For models CC015,
CC020 and CC030, place the spring and rotating member on the rotor and insert the
seal seat into the housing bore. A light lubricant will aid this procedure.
•
Install the rotor. It should go in without much force.
•
Replace the cover/idler/gasket assembly. Align the matching marks for proper location.
•
Install the cover screws. Tighten gradually, alternating from a screw on one side to a
screw on the opposite side.
•
Install the relief valve and gasket assembly, making sure the adjusting screw points to
the suction side of the pump.
•
Check the end clearance.
•
Reconnect the pump to the motor, making sure the key has been installed on the motor
shaft and the four screws are securely fastened.
Changing Rotation
Model CC pumps are bi-directional and will work equally well in either direction of
rotation with no modification.
If outfitted with an internal relief valve (model CCV), these pumps become rotational. To
change rotation:
•
Remove the four screws holding the relief valve and gasket assembly to the housing.
•
Rotate the relief valve and gasket assembly 180° so that the adjusting screw points to
the new suction side of the pump.
•
Replace the four screws.
v 1.1.2
Page 13 of 16
6.13.05