V1.4
18 of 22 04/01/2009
•
Remove the rotor by pressing on the hollow drive shaft with an arbor of
approximately 1.375" (35 mm). With model CC009 pumps, the mechanical seal
will remain in the housing. With model CC015, CC020 and CC030 pumps, the
rotating element of the seal will come out with the rotor.
•
For model CC009, remove the retaining ring in the bore of the motor mounting
and the mechanical seal.
•
For models CC015, CC020 and CC030, remove the seal spring and rotating
member from the rotor and the seal seat from the housing.
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.
