INSTRUCTION SHEET
Cole-Parmer Instrument Company
Manufactured by:
Barnant Company
Part Number 7575-01
DISCONNECT AC POWER
REPLACEMENT SEAL KIT
1. Remove any pump(s) attached to the front of the drive. Clean any foreign material from the outside diameter of the drive shaft.
2. Remove the (4) screws (Item B) that hold the front plate assembly (Item A) to the drive
Fig. 1, and pull the front plate assembly off the drive. #8-32 screws may be installed in the pump-mounting holes to provide handles for pulling the plate assembly off. Retain
Item B screws for step 8. DO NOT substitute other screws.
3. Turn the front plate over so that the seal side is visible. Wipe the elastomeric seal lips with a clean cloth to remove any grease and foreign material.
4. Replace the seal assembly using the 7575-01 replacement seal kit as follows: Take apart front plate assembly as shown on Fig. 2. Review the condition of the gasket
(Item H). If it is damaged dispose of old gasket and clean surface of front plate (Item
G). Align holes of front plate and new gasket (Item H) prior to replacing gasket, with adhesive side toward the front plate. Place O-ring (Item C) into designated gland of front plate. Place seal assembly (Item D), with seal spring facing away from front plate, into gland and secure with (2) screws (Item F) and (2) lock-washers (Item E).
5. Wipe the exposed part of the drive shaft with a clean cloth. Wipe from the drive outward, to remove all grease and foreign matter.
6. Inspect the shaft surface in the area touched by the seal. Look for a rough finish, or grooves parallel to the shaft length. If the shaft end is worn or damaged, as described above, replace the gear and shaft with the 7575-02 kit. A polished groove, concentric to the outside of the shaft, is not a defect, as long as the groove is no more than 0.002 inches deep.
7. Prior to re-assembly, re-lubricate the shaft and seal with the food-grade lubricant provided with the unit. CAUTION: Do not contaminate the lubricant in the container, on the shaft or on the seal with foreign material. Failure to observe this precaution may result in damage to the seal and premature failure of the seal.
8. Slide the front plate assembly back over the shaft and onto the locating pins, in the orientation desired (4 configurations, each 90 degrees of rotation apart, are possible).
Reinstall the 4 screws, removed in step 2 above. CAUTION: No foreign matter should be allowed under the gasket on the back of the front plate or under the heads of the
Page 1 of 3
A-1299-5088
Edition 01
Cole-Parmer Instrument Company y 625 East Bunker Court y Vernon Hills, IL U.S.A. 60061-1844
800-MASTERFLEX (627-8373) y 800-323-4340 y (847)-247-2929 (Fax) e-mail: [email protected]
y Web Site: http//www.masterflex.com
Barnant Company y 28W092 Commercial Avenue y Barrington, IL U.S.A. 60010-2392
847-381-7050 y 800-637-3739 y 847-381-7053 (Fax) e-mail: [email protected]
y Web Site: http//www.barnant.com
Cole-Parmer Instrument Company
Manufactured by:
Barnant Company screws. Failure to observe this precaution may result in leakage during washdown of the drive.
A. Front Plate Assembly
B. Front Plate Assembly
Screws (4)
A
B
Figure 1
Page 2 of 3
A-1299-5088
Edition 01
Cole-Parmer Instrument Company y 625 East Bunker Court y Vernon Hills, IL U.S.A. 60061-1844
800-MASTERFLEX (627-8373) y 800-323-4340 y (847)-247-2929 (Fax) e-mail: [email protected]
y Web Site: http//www.masterflex.com
Barnant Company y 28W092 Commercial Avenue y Barrington, IL U.S.A. 60010-2392
847-381-7050 y 800-637-3739 y 847-381-7053 (Fax) e-mail: [email protected]
y Web Site: http//www.barnant.com
G
Cole-Parmer Instrument Company
Manufactured by:
Barnant Company
C
C. O-Ring
D. Seal Assembly
E. Lock Washer (2)
F. Screw (2)
G. Front Plate
H. Gasket
D
E
F
H
Figure 2
TYGON – Reg TM SAINT-GOBAIN
Trademarks bearing the ® symbol in this publication are registered in the U.S. and in other countries.
These products are covered by one or more of the following U.S. and corresponding foreign patents:
4,925,370 and 5,082,049
Printed in U.S.A.
Page 3 of 3
A-1299-5088
Edition 01
Cole-Parmer Instrument Company y 625 East Bunker Court y Vernon Hills, IL U.S.A. 60061-1844
800-MASTERFLEX (627-8373) y 800-323-4340 y (847)-247-2929 (Fax) e-mail: [email protected]
y Web Site: http//www.masterflex.com
Barnant Company y 28W092 Commercial Avenue y Barrington, IL U.S.A. 60010-2392
847-381-7050 y 800-637-3739 y 847-381-7053 (Fax) e-mail: [email protected]
y Web Site: http//www.barnant.com