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Extension Cord Selection
If an extension cord is used, make sure that it is of the 3-
conductor type with NEMA connectors so a continuous
grounding circuit is provided from the tool to the power circuit
receptacle. Also, be sure that the conductor size is large
enough to prevent excessive voltage drop which will cause
loss of power and possible motor damage to the unit. A table
of recommended extension cord sizes is shown below.
For nameplate ampere ratings which are between those given,
use the extension cord recommended for the next higher
ampere rating.
If an extension cord is to be used outdoors, it must be marked with
the suffix W-A following the cord type designation. For example,
SJTW-A to indicate that it is acceptable for outdoor use.
Initial Setup
The Piston Pump unit is fully assembled upon delivery. Follow
these simple steps for setup:
1. Pull up on the handle until the button locks snap into place.
Purging the Sprayer
This unit is shipped with test fluid in the fluid section to prevent
corrosion during shipment and storage.
If you are going to spray with latex paint, the test fluid must be
purged and then thoroughly cleaned out of the system.
If you are going to spray with solvent-based paint, all you need
to do is purge the fluid. Thorough cleaning is not necessary.
Keep the spray gun locked and in the OFF position during
these steps.
CAUTION
Extension Cord Length
Nameplate Ampere Rating
25 ft.
0 to 5 18 18 18 18 18 18
18 18 18 18 18 16
18 18 18 18 16 16
18 18 18 16 16 16
18 18 18 16 16 14
18 18 18 16 14 14
16 16 16 16 14 14
16 16 16 16 14 14
16 16 16 14 14 14
14 14 14 14 14 12
14 14 14 14 14 12
14 14 14 14 12 12
14 14 14 14 12 12
14 14 14 14 12 12
12 12 12 12 12 12
12 12 12 12 12 12
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
50 ft. 75 ft. 100 ft.125 ft.150 ft.
4 © SprayTECH Corporation. All rights reserved.
Purging the System for Latex Paint
1. Place a container of soapy water under the paint suction tube.
Have a waste container ready to catch the purged fluid.
2. Detach the return tube from the fluid section and place it
in the waste container.
If a metal container is used, it is
necessary to ground the spray
gun and container. To do this,
hold a metal portion of the gun
against the edge of the metal
container. Failure to do so may
lead to static electric discharge,
which may cause a fire.
3. Turn the pressure control knob counterclockwise to the
lowest setting.
4. Set the PRIME/SPRAY valve to the PRIME.
5. Turn the ON/OFF switch to ON.
6. Turn the pressure control knob clockwise slowly until fluid
starts coming through the return tube. Use the least
amount of pressure necessary to keep the fluid flowing.
When all of the test fluid has been cleaned out of the
system, soapy water will flow through the return tube.
7. Turn the pressure control knob to its lowest setting and replace
the container of soapy water with a container of clear water.
8. Turn the pressure control knob clockwise slowly until
water running through the return tube is clear.
9. Turn the pressure control knob counterclockwise to the
lowest setting. Replace the container of clean water with
a container of latex paint.
10. Turn the pressure control knob clockwise slowly until paint
comes through the return tube.
11. Place the return tube into the operating position above the
paint container. Keep recirculating paint through the
system until the paint coming through the return tube is
free of air bubbles.
12. Turn the pressure control knob counterclockwise to the
lowest setting. The unit is now ready to use.
Keep the spray gun’s trigger lock in the locked position
during these steps.
CAUTION
PRIME
SPRAY
PRIME/SPRAY Valve
Pressure Control
Knob
WARNING
Return Tube
English