Pumptec ELECTRIC SPRAYER 12V User Manual

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Version 110112

Pumptec Operating Instructions and Parts Manual

12V ELECTRIC SPRAYER

The pumping system can be mounted where it is visible, but

it must be protected from rain, dirt and chemical spray or

splashing. The pump must never be installed on a vertical

surface with the pump head higher than motor, like a capital

letter “T”, for example.

POSITIOn MOTOR UnIT:

1. When selecting position, consider length and downward

angle of suction line from tank to pump

2. Consider length of wire from battery to motor
3. To reduce shock and vibration, heavy duty motor mounts

with lock nuts and washers are provided

4. Pump may be mounted in any position except vertical with

pump above motor (water would leak into motor). Vertical

mount with motor above pump is not a problem.

5. Mount pump and motor in a location where it is protected

from dust, dirt, mud, water, impact shock, chemical spill, or

direct sunlight. A simple well ventilated housing should be

adequate.

lAYOUT AnD InSTAll SUCTIOn lInE

MOST IMPORTAnT: AlWAYS have a suction line in continuous

downward slope from tank to pump. This will allow air bubbles

to travel uphill back into tank thereby eliminating 99% of

priming issues and erratic performance.
All poly tanks are supplied with female bulkhead fittings for

tank bottom outlets. We have supplied plastic hose barbs for

both ½” and ¾” nPT female bulkhead fittings.

1. Connect hose to ½” hose barb in tank fitting and carefully

route to pump inlet

2. Install line strainer at convenient location
3. Trim hose length to assure continuous downward slope to

pump inlet. Secure suction hose with wire ties needed.

4. Install and tighten hose clamps
nOTE: Poly spring suction hose is reinforced with stainless steel

wire. Cut hose with blade, then pull apart to stretch wire and

cut off excess wire with wire cutter

PrE-oPEratioN

InlET COnDITIOnS

cAutIoN!

DO NOT STARVE THE PUMP

OR RUN DRY. Temperatures above 130°F will require

pressurized inlet to avoid cavitation and seal damage.

DISCHARgE COnDITIOnS

Open all valves in system prior to operation to avoid excessive

load on motor and system from a pressure spike. Follow the

instructions of proper system design. Refer to supplier if

assistance is needed.

PRESSURE REgUlATIOn

Verify pressure regulation devices are operating correctly.

nOZZlES

nozzles create pressure in most systems and they become

larger with use. larger nozzles decrease system pressure. Verify

the quality of nozzles prior to operation.

MOTOR SHAFT ROTATIOn

cAutIoN!

Motor shaft rotation must always be

counterclockwise in order to assure proper function of pump

or warranty may be void.

PUMPED lIQUIDS

Some liquids may require a flush between operations or before

storing. For pumping liquids other than water, contact your

supplier.

cAutIoN!

If the pump is used in extremely dirty or

humid conditions, it is recommended pump be enclosed. Do

not store or operate in excessively high temperature areas or

without proper ventilation.

oPerAtIoN

gEnERAl OPERATIng InFORMATIOn

Pressure is often created by forcing a volume of fluid (flow)

through a specific size hole (nozzle). Additionally, pressure can

be created by pumping into a non-expanding chamber. Pressure

is measured and stated in PSI – pounds per square inch.
Flow is created based upon the pump displacement and speed

(RPM) of the motor. Pump plunger size affects flow based upon

the same RPM. The faster the motor speed, the greater the

flow. Flow is measured and stated in gPM – gallons per minute.
The pump, driven by a motor or engine, draws fluid through a

set of valves into the pumping chamber and the fluid is then

forced out of a set of valves to exit the pump. The back and

forth movement of the plunger in the sealed pumping chamber

creates the suction and discharge actions.
Once the fluid has exited the pump it must be controlled

until it exits the nozzle or reaches the place it needs to go.

This control is achieved via the use of system components

such as an unloader or regulating valve. The pumps are

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