GORMAN-RUPP PUMPS 2AG4ACV Specifications Information And Repair Parts Manual

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Specifications Information and Repair Parts Manual
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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.
©2012 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.
2-Inch Dewatering Pumps
Refer to pump manual 1808-633-00 for General Operating and Safety Instructions.
DESCRIPTION
These dewatering pumps are engine driven, self-priming (to 20 ft. lift), and portable units. Clog resistant impeller is capable of handling solids up to 3/8"
diameter. For use with non-flammable, non-abrasive liquids compatible with pump component materials.
MAINTENANCE
To prevent accidental starting, always remove spark plug, or
disconnect and ground spark plug wire before attempting to
service or remove any component.
MECHANICAL SEAL REPLACEMENT
Refer to figures 1A, 1B and 2.
IMPORTANT: Always replace seal assembly and shaft sleeve to
ensure proper mating of mechanical seal components.
1. Unthread fasteners and remove casing from adapter.
NOTE: Inspect gasket. Replace if torn or damaged.
2. Unscrew impeller from engine shaft and remove impeller
shims. Keep shims for assembly.
NOTE: To keep shaft from turning, remove shroud from engine and
hold flywheel in place. Engine has a threaded shaft. To remove
impeller, turn impeller CCW (facing engine shaft).
3. Slide shaft sleeve and seal head (the part with spring) from
engine shaft.
4. Unthread fasteners and remove adapter from engine
mounting face.
5. Push seal seat from adapter recess with a screwdriver.
6. Clean adapter recess before inserting a new seal seat.
NOTE: The precision lapped faces on mechanical seal are easily
damaged. Handle your replacement seal carefully.
7. Carefully wipe polished surface of new seal seat with a clean
cloth.
8. Wet rubber portion of seal seat with a light coating of soapy
water.
9. Press new seal seat squarely into cavity in adapter. If seal
seat does not press squarely into cavity, it can be adjusted in
place by pushing on it with a piece of cardboard between
pipe and seal seat. Avoid scratching seal seat. (This is a
lapped surface and must be handled very carefully).
NOTE: Do not install a scratched, cracked or damaged seal seat; it will
leak.
10. After seal seat is in place, ensure that it is clean and has not
been marred.
11. Using a clean cloth, wipe shaft and make certain that it is
perfectly clean.
12. Secure adapter on engine mounting face.
Tighten fasteners EVENLY to avoid cocking adapter on rabbet on
engine mounting face.
13. Apply a light coating of soapy water to inside rubber portion
of seal head and slide onto shaft sleeve. Slip shaft sleeve
with seal cartridge onto engine shaft.
Do not touch or wipe polished part of seal cartridge.
14. Replace impeller shims.
2AGX-250-00
NOTE: See shim adjustment below
15. Screw impeller back in place, tightening until it is against
shaft shoulder.
16. Remount pump casing on adapter.
SHIM ADJUSTMENT
When installing a replacement impeller, it may be necessary to vary
number of shims that will be required. This is done by adding 0.010"
shim more than was removed and reassembling pump as follows:
IMPORTANT: When clearance between impeller and casing exceeds
1/16" at face of impeller or 1/8" on outside diameter of impeller, it may
be necessary to take corrective action.
1. Ensure that casing is snugly in place and check shaft to
make sure it is turning freely. If it turns freely, check to
ensure that adapter and casing are seated firmly,
compressing gasket where they meet. If they are not seated,
tighten fasteners and recheck shaft for free turning. Tighten
carefully, turning shaft while tightening. If shaft seizes before
fasteners are completely tight, disassembly pump, remove
one shim and repeat reassembly.
2. If at any time during shim adjustment shaft does not turn
free, or a metal-to-metal rubbing can be heard or felt when
turning shaft, repeat SHIM ADJUSTMENT procedure.
Figure 1A & 1B - Mechanical Seal Replacement
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2AG4ACV & 2AG5ACV
03/2012