Product Manual

Rev. A 921354-04
Instruction Sheet for Electric Gear Pump
Conversion & Overhaul Kit
The contents of this kit are listed inside.
WARNING!
To avoid personal injury, turn pump off and disconnect power
before removing any coverplates.
Standard Instructions for Seal Replacement
To replace most seals in this kit, follow these standard directions.
1. Remove the appropriate coverplate.
2. Remove the old O-ring seal taking care not to damage other parts.
3. Lightly oil the new O-ring.
4. Make sure the O-ring is seated correctly and tighten the coverplate.
Bypass Poppet Seal Replacement
In addition to the standard instructions above, please note the following
information when installing a new O-ring seal on the bypass poppet.
1. After removing the gear coverplate, use a 1/2-inch drive ratchet or
extension to remove the pipe plug from the top outlet port.
2. Depress the bypass poppet with a socket wrench extension until the
bypass poppet O-ring is exposed inside the gear cavity.
3. Using a small screwdriver or similar tool, remove the old O-ring.
4. Reverse the above steps to install the new O-ring. Make sure the
new O-ring is well-seated in the poppet groove. If installed correctly,
the poppet should move up and down freely with medium pressure.
5. Seal the pipe plug with thread tape or a sealing compound approved
for use with petroleum fuels.
Gear and Drive Key Replacement.
Please note that worn gears are indicated by reduced pump
performance. During installation, make sure the new gears rotate freely
before tightening the coverplate.
Use with Kit 110504 Printed in U.S.A. 05/12
Motor Shaft Seal Replacement
Replacing the shaft seal included in this kit changes the chemical
compatibility of the pump. The new shaft seal allows you to use
this pump with B100 fuel. B100 fuel requires a minimum
temperature of 40° F.
In addition to the standard instructions on the front page, please note the
following when installing the new Motor Shaft Seal:
NOTE: In order to preserve the UL Listing or CSA Certication for pump
safety, return the entire pump to GPI for motor repair. If the motor is
removed from the pump or serviced outside of the factory, the UL and
CSA labels mounted on the pump housing must be removed or defaced
to indicate loss of UL Listing or CSA Certication.
1. Remove the gear coverplate, gears, and drive key. Remove the three
screws holding the motor to the pump housing. Remove the motor.
2. Remove the motor shaft seal by prying it out with a small screwdriver.
3. Lubricate the gear shaft with WD-40
®
or a similar penetrating oil.
4. Press the new motor shaft seal evenly in the pump housing until
seated. Use a lightweight motor oil to lubricate the exposed edge of
the seal.
5. Install the motor, guiding the shaft through the seal and into the pump
housing. Make sure that the motor is ush against the pump housing
and the coverplate.
6. Tighten the motor to the pump housing with the three screws. Check
for proper installation by working a 0.0015 feeler gauge around the
motor ange. The gauge should NOT t between the motor ange and
the pump housing.
7. Clean the gear cavity as necessary. Insert the gears and drive key.
Make sure both gears rotate freely.
8. Make sure the gear coverplate O-ring is seated correctly and tighten
the coverplate to the pump housing.
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© 2012 Great Plains Industries, Inc. Wichita, KS
Printed in U.S.A. 05/12