Wayne GPB400 User Manual

Page of 20
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect 
yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! 
Retain instructions for future reference.
Engine Driven 
Centrifugal Pump
Description
The WAYNE pumps are general use 
centrifugal water pumps. The pump 
is equipped with EPDM seals that are 
intended for water use only.
Safety Guidelines
This manual contains information that is 
very important to know and understand. 
This information is provided for SAFETY 
and to PREVENT EQUIPMENT PROBLEMS. 
To help recognize this information, 
observe the following symbols.
 
Danger indicates an 
 imminently 
hazardous 
situation which, if NOT avoided, WILL 
result in death or serious injury.
 
Warning indicates a 
 potentially 
hazardous 
situation which, if NOT avoided, COULD 
result in death or serious injury.
 
Caution indicates a 
  potentially minor or 
moderate injury, if NOT avoided, MAY 
result in serious injury.
 Notice 
indicates 
 important 
information, that if NOT followed, MAY 
cause damage to equipment.
General Safety 
Information
  CALIFORNIA PROPOSITION 65
 
This product may 
 contain 
chemicals 
known to the State of California to 
cause cancer and birth defects or other 
reproductive harm. Wash hands after 
handling.
1.   Know the pump application, 
limitations, and potential hazards. 
Read these rules and the instructions 
carefully. Failure to follow them could 
cause serious bodily injury and/or 
property damage.
 NEVER 
run
 engine 
in
an enclosed area. Exhaust 
gases contain deadly 
poisonous carbon monoxide, 
which has no odor or taste.
 
Do NOT use 
 
 to pump 
flammable or  explosive fluids 
such as gasoline, fuel oil, 
kerosene, etc.  Do NOT use in 
flammable and/or explosive atmospheres. 
Pump SHOULD only be used with liquids 
compatible with pump component materials. 
Failure to follow this warning CAN result in 
personal injury and/or property damage.
2.  Observe all safety precautions for the 
handling of the fuel.
 Do 
NOT 
 refuel 
a
hot engine. Fuel spilled on a 
hot engine could result in a 
fire or explosion. Do NOT 
refuel a running engine.
3.  Pump should be located and should 
rest on a level solid foundation. Do 
NOT suspend pump by means of the 
discharge pipe.
 
Be sure pump is on 
  secure footing so it 
doesn’t fall over.
4.  Do NOT use torches or apply excessive 
heat, fire or flames to this pump as an 
explosion may result.
5.  Before working on the unit, insulate 
the wire from the spark plug, by 
disconnecting the spark plug wire from 
the spark plug.
 Complete 
pump and 
 piping 
system 
MUST be protected against below freezing 
temperature. Failure to do so COULD cause 
serious damage and WILL void the warranty.
6.  Do NOT run pump dry. Water is 
required to lubricate the shaft seal.
7.  Pumping chemicals or corrosive liquids 
with this pump will shorten the life of 
the pump and may be hazardous to the 
operator and void the warranty.
8. Personal 
Safety:
a. Wear safety glasses at all times when 
working with pumps.
b. Keep work area clean, uncluttered 
and properly lighted; replace all 
unused tools and equipment.
c. Keep visitors at a safe distance from 
the work area.
d. Make workshop child-proof with 
padlocks, master switches, and by 
removing starter keys. 
9.  This pump is designed for non-abrasive 
fluid transfer; do NOT use as a trash 
pump. ALWAYS use a suction strainer 
with this pump to filter abrasive 
material. Abrasive materials such as sand 
and gravel will shorten the life of the 
pump.
Installation
This pump is designed to be self-priming 
when installed and operated as specified 
below.
1.  The pump should be placed as close as 
possible to the water being pumped. 
A pump with 20 foot suction lift will 
not remove water as quickly as a pump 
with 5 foot suction lift (Figure 1).
 Operating Instructions and Replacement Parts List
GPB400
REMINDER: Keep your dated proof of purchase for warranty purposes! 
Attach it to this manual or fi le it for safekeeping.
 © 2011, WAYNE/Scott Fetzer Company.
320605-001 8/11
 For parts, product & service information
visit www.waynepumps.com
Figure 1
20 FT. SUCTION LIFT
5 Ft. 
SUCTION
LIFT