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3880-252-00
1
09/2011
Specifications Information and Repair Parts Manual
3880-97 thru 3884-97
x
Please read and save this Repair Parts Manual. Read this manual and the General Operating Instructions carefully before attempting to assemble,
install, operate or maintain the product described. Protect yourself and others by observing all safety information. The Safety Instructions are contained
in the General Operating Instructions. Failure to comply with the safety instructions accompanying this product could result in personal injury and/or
property damage! Retain instructions for future reference
.
AMT reserves the right to discontinue any model or change specifications at any time without
incurring any obligation.
©2011 American Machine & Tool Co., Inc. of PA, A Subsidiary of The Gorman-Rupp Company, All Rights Reserved.
Periodic maintenance and inspection is required on all pumps to insure proper operation. Unit must be clear of debris and sediment. Inspect for leaks and loose bolts. Failure
to do so voids warranty.
Swimming Pool/Hot Tub Pumps
Refer to pump manual 1808-634-00 for General Operating and Safety Instructions.
DESCRIPTION
These bronze centrifugal pumps are designed for high volume liquid handling in spas or other applications where moderate pressures and high volumes
are required.
to a wide variety of swimming pool
filters. All units are manual models. No controls are supplied. For use with nonflammable, non-abrasive liquids compatible with pump component
materials.
READ AND FOLLOW ALL INSTRUCTIONS
To reduce the risk if injury, do not permit children to use product unless they are closely supervised at all times.
This pump is for use with permanently installed pools and may also be used with hot tubs and spas if so marked. Do not use with storable pools. A
permanently installed pool is constructed in or on the ground or in a building such that it cannot be readily disassembled for storage. A storable pool is
constructed so that it may readily disassembled for storage and reassembled to its original integrity. For hot tub and spa pumps
– do not install within an
outer enclosure or beneath the skirt of a hot tub or spa unless so marked.
Important Safety Instructions
Save these instructions
When installing and using this electrical equipment, basic safety precautions should always be followed, including the following:
A copper bonding conductor of no smaller than 8 AWG must be connected from the ground screw on the motor to ALL metal parts of the pool, spa or hot tub
structure, and to all electrical equipment, metal conduit, and metal piping within 5 feet of the inside wall of a swimming pool, spa, or hot tub, when the motor is
installed within 5 feet of the inside walls of the swimming pool, spa, or hot tub. For specific safety precautions for installation and electrical connection information
and to reduce the potential for fire, electric shock, or injury, read and follow all information and instructions contained in the form 1808-634-00, Electric Motor
Driven Pumps Operating Instructions.
NOTE:
If the pump is located above the liquid level, a positive sealing foot valve must be installed at the end of the suction line or in the piping just before the
pump. If the unit is used with a strainer basket, the foot valve or check value will be required only when the suction lift or distance the pump is from the water level
is greater than 10 feet. If the strainer basket is not used, it is recommended that you use another suitable means of straining foreign material out of the suction line.
MAINTENANCE
Make certain that unit is disconnected from power source before attempting
to service or remove any components!
MECHANICAL SEAL REPLACEMENT
Refer to Figures 1 and 2
IMPORTANT:
Always replace seal seat (Ref. No. 9) and seal head (Ref. No. 10)
to insure proper mating of mechanical seal components.
1.
Unthread fasteners (Ref. No. 5) and remove casing (Ref. No. 13) and
casing seal (Ref. No. 8)
2.
Unscrew impeller (Ref. No. 12) from motor shaft. Remove shims
(Ref. No. 11) and retain for reassembly.
NOTE:
S 7/ 6”
shaft (remove bearing cap for access) to prevent shaft from turning. Other motor
shafts have a screwdriver slot instead of flats.
3.
Slide old seal head from motor shaft.
4.
Unthread fasteners (Ref. No. 6) and remove assembled adapter (Ref.
No. 4) and casing cover (Ref. No. 7) from motor mounting face.
5.
Pry seal seat from rear of casing cover with a screwdriver.
6.
Clean casing cover seal seat recess before inserting new seal parts.
7.
Wet rubber portion of new seal seat with light coating of soapy water.
Press seal seat squarely into adapter recess. Avoid scratching
polished surface.
NOTE:
Handle all seal parts with extreme care and attention to keeping
them
clean. Do not touch polished faces with your hands. Do not put lubricants of any
kind on seal faces; this can cause seal to leak.
8.
Inspect polished face of seal seat and polished face of seal head to
insure they are clean and not marred.
9.
Using a clean cloth, wipe shaft and make certain that it is perfectly
clean.
10.
Slide assembled adapter and casing onto motor mounting face.
Attached with fasteners.
11.
Wet inside rubber portion of new seal head with a light coating of
soapy water. Slide head onto motor shaft.
IMPORTANT:
Reinstall any shims or spacers which may have been removed
onto motor shaft before installing impeller.
12.
Screw impeller back in place, tightening until it is against shaft
shoulder.
13.
Replace casing seal and casing. Attach with fasteners.
IMPORTANT:
Always inspect casing seal when disassembled. Use a light oil or
grease for ease of installation.
Replace when cracked or worn.
Figure 1- Mechanical Seal Replacement
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