Service Instruction No. 22
INSTALLATION AND SERVICE
INSTRUCTIONS
FOR
C SERIES PUMPS
v 1.1.2
Page 1 of 16
6.13.05
Page 1: ...Service Instruction No 22 INSTALLATION AND SERVICE INSTRUCTIONS FOR C SERIES PUMPS v 1 1 2 Page 1 of 16 6 13 05 ...
Page 2: ...2G is equipped with spring loaded V type graphite impregnated Teflon packing Model C2G pumps have the packing chamber vented to the suction side of the pumping zone Therefore the pump must operate in the direction for which it is assembled Model C2G is available in five sizes ranging in capacity from 6 to 84 gpm with differential pressures to 100 psi The maximum discharge pressure capability is 12...
Page 3: ... on the pressure side the liquid is forced from the spaces and out through the discharge port WARNING WARNING Failure to follow these instructions could result in serious bodily injury or death These pumps should not be used for handling plain water corrosive or abrasive liquids or liquids not possessing adequate lubricity Do not attempt to work on any Tuthill pump installation before completing t...
Page 4: ...d with both ports on the same plane Pumps with this type of porting arrangement should always be installed with the ports facing upward to insure proper priming If it is necessary to install the pump with the ports pointing to either side it is recommended that the top port be the suction port This will prevent gravity induced drainage of fluid through the suction port When pipes are installed an ...
Page 5: ...n the pump cavity that could cause serious internal damage Make certain the adjusting screw of the relief valve is located on the suction side of the pump Unless otherwise specified at the time of order all C Series pumps with an internal relief valve except CC models are supplied with the standard spring with a range of 30 225 psi 10 200 psi in size 2 pumps set to provide full bypass relief at 90...
Page 6: ...ube oil from the factory test Determine if this is compatible with the fluid you are pumping If the fluid is incompatible consult the factory If the pump is to operate at elevated temperatures it should be brought up to operating temperature gradually Rapid or sudden introduction of liquid at an elevated temperature into the cold liquid chamber of the pump could cause damage to the seal or other i...
Page 7: ...ING WARNING Failure to follow these instructions could result in serious bodily injury or death Do not attempt to work on any Tuthill pump installation before completing the steps below Disconnect the drive so that it cannot be started while work is being performed Review the Material Safety Data Sheet MSDS applicable to the liquid being pumped to determine its characteristics and the precautions ...
Page 8: ...e rings are required per pump Exercise care when sliding the rings into place so that the lips of the packing rings are stacked in line and positioned on the beveled surface of the packing retainer ring Replace the packing gland assembly and fasten it securely to the bracket assembly with the packing gland screws The tension of the spring is such that normal wear on the packing is taken up automat...
Page 9: ...aft and slide into place Align the mounting holes and reinstall the seal gland cap screws Changing suction ports while maintaining shaft rotation Models includes pumps with reversing feature C2F C2FA C2E C2EN C2G C2B To maintain the same shaft rotation clockwise or counterclockwise and yet switch suction and discharge ports please do the following Looking at the pump from the shaft end with the po...
Page 10: ...otate the cover 180 Align the mounting holes and reinstall the cover screws making sure the seal gland is vented to the suction side of the pump V Notch Changing suction ports while changing shaft rotation Models includes pumps with reversing feature C2F C2FA C2E C2EN C2G C2B To change suctions ports and change shaft rotation clockwise or counterclockwise please do the following Looking at the pum...
Page 11: ... housing using the same thickness as before This step is extremely important Insert the rotor with the washer and ball bearing into the housing The shims should allow enough clearance so that the rotor will turn freely The face of the housing should be even with the ends of the rotor teeth when gently pressed If there is not enough clearance the rotor will not turn freely causing severe scoring Th...
Page 12: ...port Align the mounting holes and reinstall the cover screws Model CC Disassembly and Seal Replacement Remove the internal relief valve and gasket assembly if so equipped by loosening the four screws holding it to the pump housing Disconnect the pump from the motor by removing the four screws holding them together Using three of these screws as jackscrews in the threaded holes provided on the pump...
Page 13: ... 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...
Page 14: ...r re assembly Remove the cover screws cover housing idler and rotor from the bracket 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 includin...
Page 15: ...Capacity is too low There are leaks in the suction line Suction losses are too high The suction lift is too great or the suction line too small or too long This can be detected by installing a vacuum gauge directly at the pump suction The maximum vacuum at the pump suction should never exceed 15 of mercury Vaporization caused by higher vacuums will generally result in capacity drop off Suction con...
Page 16: ...Returns If it becomes necessary to return a pump to the factory a Return Goods Authorization RGA must be obtained from either your local Authorized Distributor or our Chicago plant No RGA can be issued until a completed Material Safety Data Sheet MSDS has been forwarded to our Chicago plant and return of the pump approved Tuthill pumps are precision built and must be handled with care Pumps must b...
