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To  ensure  safe  operation,  all  transfer  systems  must  be 

properly  grounded.  Proper  grounding  means  a  continuous 

metal-to-metal  contact  from  one  component  to  the  next, 

including  tank,  bung,  pump,  meter,  filter,  hose  and  nozzle. 

Care should be taken to ensure proper grounding during initial 

installation and after any service or repair procedures. For 

your safety, please take a moment to review the warnings below.
Observe precautions against electrical shock when operating 

the system. Serious or fatal shock can result from operating 

electrical equipment in damp or wet locations.
Inspect  external  pump  wiring  regularly  to  make  sure  it  is 

correctly attached to power supply. To avoid electrical shock, 

use extra care when connecting the pump to power.
Avoid prolonged skin contact with DEF. Use protective goggles, 

gloves and aprons in case of splashing or spills. Change satu-

rated clothing and wash skin promptly with soap and water.
Observe precautions against electrical shock when servicing

the pump. 

Always 

disconnect power before repairing or ser-

vicing. 

Never 

apply electrical power to the system when any 

of the coverplates are removed.

PA-120DEF:

•  This pump is designed for use with GFCI protected, 115-volt 

power. Do not attempt installation or operation with 12-volt, 

24-volt, or 230-volt power sources. Use only three-pronged, 

grounded  connectors.  Do  not  use  two-prong  adapters. 

Inspect power cords regularly and replace if signs of wear 

are evident.

•  To avoid personal injury, use a ground fault circuit interrupter 

(GFCI) approved by Underwriters Laboratories Standard 

943 with this pump.

To protect against overload, this pump is equipped with a ther-

mal protector, that resets automatically, and a circuit breaker, 

that resets manually. If your pump stops unexpectedly, please 

reference further information about the thermal protector and 

circuit breaker in the Operations or Troubleshooting Sections.

P-120DEF:

This pump is designed for use with a 12-volt DC battery.

•  Inspect wiring regularly. Make sure the power cord is cor-

rectly attached to the battery. To avoid electrical shock, 

use extra care when connecting the pump to the battery.

PA-120DEF & P-120DEF:

•  Do not exceed standard duty cycle of 30 minutes ON and 

30 minutes OFF. Allow the pump to cool for 30 minutes.

•  Some fluid may spill from the pump during pump removal. 

Follow DEF label directions for cleanup and disposal.

•  Do not run the pump more than necessary without flow. 

“Dry running” can cause overheating and pump damage.

•  To avoid personal injury, turn the pump off and disconnect 

from power before repair or service.

•  For  your  protection, thoroughly  flush  the  pump  before 

cleaning or repair.

When you receive your pump, examine it for visible damage. If any 

items are damaged or missing, please contact your distributor.

GENERAL  INFORMATION

The purpose of this manual is to assist you in installing, op-

erating and maintaining your GPI pump. It provides information 

which will help you achieve years of dependable performance 

and trouble-free operation.

The system is approved for DEF (Diesel Exhaust Fluid) 

only

Do  not  use  with  gasoline,  diesel,  other  flammable  fluids,  or 

micro-encapsulated fluids. Using fluids, other than those for 

which the pump was designed, could lead to serious personal 

injury and void the warranty.
Before operating your pump, read this manual thoroughly. If 

you have problems with your pump in the future, please refer 

to the Maintenance and Troubleshooting Sections.
For  assistance,  contact  your  dealer  or  the  GPI  Customer 

Service Department.

The following safety alert symbols are used 

in this manual.

DANGER indicates a hazard-

ous  situation  which,  if  not 

avoided, will result in death 

or serious injury.
WARNING indicates a haz-

ardous  situation  which,  if 

not avoided, could result in 

death or serious injury.
CAUTION  indicates  a  haz-

ardous situation which, if not 

avoided, may result in minor 

or moderate injury.

It is your responsibility to:
•  know and follow applicable national, state, and local safety 

codes  pertaining  to  installing  and  operating  electrical 

equipment.

•  insure that all equipment operators have access to adequate 

instructions  concerning  safe  operating  and  maintenance 

procedures.

Observe all safety precautions concerning safe handling of DEF.

2

SAFETY  INSTRUCTIONS

DANGER

WARNING

CAUTION

Summary of Contents for P-120DEF

Page 1: ...he owner Congratulations on receiving your GPI pump We are pleased to provide you with a system designed to give you maximum reliability and efficiency Your pump is designed tested and approved for use with Diesel Exhaust Fluid DEF Please take all due precautions when handling DEF Your safety is important to us Also to assure the longest possible service life it is important that you follow the op...

Page 2: ...the battery To avoid electrical shock use extra care when connecting the pump to the battery PA 120DEF P 120DEF Do not exceed standard duty cycle of 30 minutes ON and 30 minutes OFF Allow the pump to cool for 30 minutes Some fluid may spill from the pump during pump removal Follow DEF label directions for cleanup and disposal Do not run the pump more than necessary without flow Dry running can cau...

Page 3: ...hey occur follow ing fluid manufacturer s instructions Before Each Use 1 Keep pump exterior clean to help identify leaks Before each use inspect for leaks around seals or connections 2 Check for leaks under the pump housing A small drain holerelievesanyfluidwhichbypassesthemotorshaftseal Figure 2 If any leakage is found here replace the motor shaft seal using instructions in the Repair Section Ins...

Page 4: ... the OFF position before restoring power Reset the circuit breaker after repairs are complete To reset press in on the circuit breaker reset button at the end of the cover assembly Proper cleaning and maintenance is vital to prolong pump life and promote trouble free operation NOTE Failure to follow recommended cleaning and storage procedures increases the chance of pump failure and may void the w...

Page 5: ...s and respirators as instructed by the fluid manufacturer For your protection flush system before disassembling During repair carefully inspect all parts for wear or damage and replace as necessary Check O rings and seals for breakage wear and signs of deterioration such as swelling Clean or Replace Strainer 1 Disconnect pump from power and flush 2 Remove the coverplate and O ring from the housing...

Page 6: ...t washer on the seal Slide the notched end of the drive shaft into place in the housing 3 Align the drive shaft with the motor adapter When properly aligned the drive shaft will slip into place with the motor against the housing 4 During assembly make sure the motor is properly seated against the motor adapter seal and the housing 6 5 Replace the screws to fasten the motor and handle to the housin...

Page 7: ...d 5 Install new power cord by reversing steps above 6 Secure wire nut with two wraps of electrical tape 7 Install coverplate and tighten screws until snug Do not overtighten Replace the Drive Shaft or Motor Shaft Seal Follow these steps to remove the drive shaft and motor shaft seal 1 Disconnect pump from power and flush 2 Remove the motor as described above 3 Carefully slide the drive shaft from ...

Page 8: ... Suction pipe clogged Remove pump Inspect suction pipe and clean or replace as necessary damaged or missing 7 Gear drive shaft broken Remove coverplate gears and motor Remove and inspect drive shaft Replace if necessary 8 Gear wear Remove the coverplate and inspect gears and drive key Gears must turn freely with the drive key removed Replace any worn or damaged parts C LOW FLOWRATE 1 Low voltage C...

Page 9: ... coverplate gears and motor Remove and inspect drive shaft Replace if necessary 8 Gear wear Remove the coverplate and inspect gears and drive key Gears must turn freely with the drive key removed Replace any worn or damaged parts C LOW FLOWRATE 1 Low voltage or poor Check for adequate battery voltage and good terminal connections connections 2 Strainer partially clogged Remove coverplate Clean str...

Page 10: ... Req d 1 110100 1 Suction Pipe Assembly Adjustable 1 2 117204 1 Fitting Reducer Bushing 1 x 3 4 NPT 1 3 115084 1 Gasket 2 in 1 4 115085 1 Teflon Ring 1 5 110017 6 Motor Shaft Key 1 6 110063 2 Inlet Strainer 1 7 110078 8 Motor Shaft Seal 1 8 110204 2 Drive Shaft Assembly 1 9 118006 1 Pump Housing 1 10 118007 1 Gear Coverplate 1 11 118016 1 Shaft Adapter 1 12 118017 1 O Ring 1 13 118020 1 Bearing 2 ...

Page 11: ...o Part No Description Req d 1 110100 1 Suction Pipe Assembly Adjustable 1 2 117204 1 Fitting Reducer Bushing 1 x 3 4 NPT 1 3 115084 1 Gasket 2 in 1 4 115085 1 Teflon Ring 1 5 110017 6 Motor Shaft Key 1 6 110063 2 Inlet Strainer 1 7 110078 8 Motor Shaft Seal 1 8 110204 2 Drive Shaft Assembly 1 9 118006 1 Pump Housing 1 10 118007 1 Gear Coverplate 1 11 118016 1 Shaft Adapter 1 12 118017 1 O Ring 1 1...

Page 12: ... 4 in x 12 ft 3 7m DEF discharge hose 3 4 in NPT DEF automatic nozzle 3 4 in NPT DEF ball valve Weight Shipping 15 lbs 6 8kg P 120DEF Applications Fluids Diesel Exhaust Fluid DEF OperatingEnvironment Outdoor operatingtemperaturerange of 20 to 120 F 30 to 50 C Operating Pressure 10 PSI Pump Housing Lightweight durable molded plastic housing Convenient 2 inch NPS bung adapter for easy installation P...

Page 13: ...e of your pump Parts descriptions and numbers Part information can be obtained from the Illustrated Parts List For warranty work always be prepared with your original sales slip or other evidence of purchase date PleasecontactGPIbeforereturninganyparts Itmaybepossible to diagnose the trouble and identify needed parts in a telephone call GPIcanalsoinformyouofanyspecialrequirementsyouwill needtofoll...

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Page 16: ...urer The warranty shall extend to the purchaser of this product and to any person to whom such product is transferred during the warranty period This warranty shall not apply if A the product has been altered or modified outside the warrantor s duly appointed representative B the product has been subjected to neglect misuse abuse or damage or has been installed or operated other than in accordance...

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