Graco ToughTek S340e Use and care manual

3A3437G
EN
Operation, Repair, and Parts
ToughTek®S340e Portable
Stucco Pump
Electric sprayer for water-based stucco base, finish coat materials, and Exterior Insulation
and Finish Systems (EIFS). For professional use only. Not approved for use in explosive
atmospheres or hazardous locations.
For models and related manuals, see page 3.
600 psi (4.13 MPa, 41.3 bar) Maximum Fluid Working Pressure.
Important Safety Instructions
Read all warnings and instructions in this manual
and in related manuals before using the equipment.
Save all instructions.

23A3437G
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . 3
Replacement Parts and Accessories . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Component Identification . . . . . . . . . . . . . . . . . . . . 9
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Component Identification Table . . . . . . . . . . . . . . 9
Motor Power Switch . . . . . . . . . . . . . . . . . . . . . . 10
Connect Hoses and Applicator . . . . . . . . . . . . . 10
Install the Remote Switch (Optional) . . . . . . . . . 11
Prime with Material . . . . . . . . . . . . . . . . . . . . . . 11
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . 12
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Flush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Prime with Water . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mix the Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Prime with Material. . . . . . . . . . . . . . . . . . . . . . . . . 17
Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Prevent Pack-Out. . . . . . . . . . . . . . . . . . . . . . . . 18
Before Starting or Stopping Material Flow . . . . . 18
Spraying. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Spray Adjustments (Pole Spray Applicator) . . . . 19
General Adjustments . . . . . . . . . . . . . . . . . . . . . 19
Spraying Techniques . . . . . . . . . . . . . . . . . . . . . 19
Material Flow Adjustment . . . . . . . . . . . . . . . . . . 19
Air Flow Valve Adjustment . . . . . . . . . . . . . . . . . 19
Installing Nozzle Retaining Cap . . . . . . . . . . . . . 19
Spray Adjustments (HTX™Applicator) . . . . . . . . . 20
Fluid Drain/Purge Valve . . . . . . . . . . . . . . . . . . . . . 21
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 21
Hopper Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Daily Maintenance . . . . . . . . . . . . . . . . . . . . . . . 23
Preventative Maintenance . . . . . . . . . . . . . . . . . 23
Corrosion Protection. . . . . . . . . . . . . . . . . . . . . . 23
Water Exposure . . . . . . . . . . . . . . . . . . . . . . . . . 23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Mechanical/Fluid Flow . . . . . . . . . . . . . . . . . . . . 24
Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Replace Pump Components. . . . . . . . . . . . . . . . 28
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Technical Specifications . . . . . . . . . . . . . . . . . . . . 37
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 38

Models
3A3437G 3
Models
†All 230V pumps include a Europe adapter and Australia adapter cord set.
Related Manuals
Manuals are available at www.graco.com
Bare Model Electric Requirements Approval
Country Remote On/Off
Switch
25A300 120V, 15A, 50/60 Hz, 1ɸNorth America
25A302 
25C610 110V, 15A, 50/60 Hz, 1ɸUnited Kingdom
25C612 
25A304† 230V, 10A, 50/60 Hz, 1ɸEurope, Asia,
Australia
25A306† 
Manual in
English Description
3A3438 Pole Spray Applicator
3A3653 HTX Finish Coat Applicator
3A3112 ToughTek®340e Remote Switch Control Box
Accessory Kit 17G554
3A3439 ToughTek®S340e Pump Lower Conversion Kit
3A5637 ToughTek®Camlock Mortar Hose
3A4554 ToughTek®Mortar Coupling Hose

Replacement Parts and Accessories
43A3437G
Replacement Parts and Accessories
Accessories
17G554 KIT, remote switch, control box
17W604 KIT, remote switch, (switch with attached 100 ft. cable)
17W829 KIT remote switch, extension cord (110 ft.)
248515 KIT, sponge ball, 30 mm for 25 mm (1.0 in.) dia. hose (Qty. 5)
25A227 KIT, sponge ball, 40 mm for 35 mm (1-3/8 in.) dia. hose (Qty. 5)
17G930 KIT, sponge ball, 60 mm for 50 mm (2 in.) dia. hose (Qty. 5)
114271 STRAP, retaining
240296 KIT, retaining straps, 4-pack
118665 TUBE, grease, Fusion Gun, 4 oz.
248279 TUBE, grease, Fusion Gun, 4 oz., 10-pack
206994 FLUID, TSL 8 oz. bottle
Lower Assembly
25A233 KIT, rebuild, pump
17G456 KIT, lower, clamp
16W490 KIT, repair, 10-pack, o-ring, cylinder end
25A467 KIT, repair, check balls
17G865 KIT, repair, 3-pack, seal throat, triple lip
17G864 KIT, pump lower, S340e
25A178 KIT, conversion, F340e to S340e
Inlet
17G863 KIT, repair, seat, inlet
15H833 BALL, neo/sst core 1.75 in.
Piston
17G862 KIT, repair, seat, piston
17G798 BALL, neoprene, cs core, 1.625 in.
16W491 KIT, repair, 3-pack, seal, piston
Check Valve
25A466 KIT, outlet, check valve, S340
17H192 KIT, outlet, seat, o-ring
113082 PACKING, o-ring
17H194 KIT, outlet, check, valve
102973 BALL, metallic
17J712 KIT, F340e, check, retainer
17G866 KIT, fitting, cam, check valve
Rubber Elbow
17H193 KIT, inlet, elbow
17H196 KIT, elbow, band clamp

Replacement Parts and Accessories
3A3437G 5
Hopper
17J707 KIT, F340e, hopper with cover
17J709 KIT, F340e, hopper, bracket
17J812 KIT, F340e, Stop, bracket
17J710 KIT, F340e, adjustable latch
17J708 KIT, F340e, stop, brackets
Motor and Driver
17J702 KIT, F340e, MCM, 120V
25C512 KIT, F340e, MCM, 120V, UK
17J755 KIT, F340e, MCM, 230V
17J711 KIT, F340e, motor
17J714 KIT, F340e, finger, guard
17J704 KIT, F340e, front, cover
287282 KIT, repair, shield, motor
17J705 KIT, F340e, tool box

Warnings
63A3437G
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks.
When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings.
Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this
manual where applicable.
WARNING
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the system can cause
electric shock.
• Turn off and disconnect power cord before servicing equipment.
• Connect only to grounded electrical outlets.
• Use only 3-wire extension cords.
• Ensure ground prongs are intact on power and extension cords.
• Do not expose to rain. Store indoors.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help
prevent fire and explosion:
• Use equipment only in well-ventilated area.
• Eliminate all ignition sources, such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static sparking).
• Ground all equipment in the work area. See Grounding instructions.
• Never spray or flush solvent at high pressure.
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Use only grounded hoses.
• Hold applicator firmly to side of grounded pail when triggering into pail. Do not use pail liners unless
they are anti-static or conductive.
•Stop operation immediately if static sparking occurs or you feel a shock.Do not use equipment until
you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure and disconnect all power sources.
SUCTION HAZARD
Powerful suction could cause serious injury.
• Never place hands near the pump fluid inlet when pump is operating or pressurized.

Warnings
3A3437G 7
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature ratings of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturers warnings. For complete information about
your material, request Safety Data Sheets (SDSs) from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure.
• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create
safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical
reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or
property damage.
• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents.
• Do not use chlorine bleach.
• Many other fluids may contain chemicals that can react with aluminum. Contact your material
supplier for compatibility.
WARNING

Warnings
83A3437G
\\
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
• Do not point dispensing device at anyone or at any part of the body.
• Do not put your hand over the fluid outlet.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or
servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses and couplings daily. Replace worn or damaged parts immediately.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read Safety Data Sheets (SDSs) to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including
eye injury, hearing loss, inhalation of toxic fumes, and burns. Protective equipment includes but is not
limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
WARNING

Component Identification
3A3437G 9
Component Identification
Overview
Component Identification Table
A Electric Motor
B Pump Lower
C Fluid Drain/Purge Valve
E Remote Pump Control Switch (optional)
F Fluid Outlet
H Flow Adjustment Knob
J Hopper
L Control Board Status Light
P Hopper Pin
S Motor Power Switch
U Hopper Latch

Component Identification
10 3A3437G
Motor Power Switch
The motor power switch (S) must be in the ON position
for the sprayer to pump material.
Motor Power Switch Settings:
Connect Hoses and Applicator
• Before connecting hoses/applicator, inspect for
damage or wear to both the hose/applicator and
cam lock fittings. Fittings should be clean and free
of debris, dents, cracks or nicks. The female cam
lock fitting must have the gasket installed.
• Always connect hoses from largest diameter to
smallest diameter.
• Use a minimum of 25 ft. of hose with a working
pressure of at least 600 psi (4.1 MPa, 41 bar).
• When fastening cam locks, make sure the pull ring
stays to the outside of the cam lock arm to allow for
complete and proper sealing of the cam lock. Once
installed, use Velcro straps to secure cam locks in
place.
OFF Power is off. The motor will not run.
ON The motor will run continuously at a speed
determined by the flow adjustment knob.
ti27651a

Component Identification
3A3437G 11
Install the Remote Switch (Optional)
The remote switch is an additional accessory kit and
does not come with models 25A300 and 25A304. The kit
part number is 17G554. See manual 3A3112 for remote
switch installation and replacement.
NOTE: Use zip-tie (Z) to install the remote switch to the
hose or pole spray applicator (follow the illustrations
below). The remote switch will fit hoses/applicators sized
0.75 in. up to 1.25 in.
Prime with Material
The applicator must be removed before priming. Always push
out any remaining water into a waste container before
circulating material. Always circulate clean material back into
the hopper for several cycles before beginning to spray.
1. Prime the system with water. See Prime with Water, pg.
16.
2. Mix the material. See Mix the Material, pg. 17.
3. Turn the flow adjustment knob (H) counterclockwise until
it stops.
4. Remove the applicator.
5. Fill the clean hopper with material to be sprayed.
6. Place the hose outlet in a waste container.
7. Turn the motor power switch (S) to ON.
8. Turn the flow adjustment knob (H) clockwise slowly to
increase pressure until water is purged out and a steady
stream of material flows from the applicator.
9. To stop dispensing, turn adjustment knob (H)
counterclockwise until it stops.
10. Install applicator.
NOTE: For EIFS finish coats, before installing the applicator,
prime the larger ID hose, then install and prime the transition
fitting and whip hose.
11. Recirculate several cycles of material to make sure the
material is flowing properly.
12. Turn the flow adjustment knob (H) counterclockwise to
stop the pump.
13. Install the air line and a tip onto the applicator (see
applicator manual). The system is now primed and ready
to spray.
NOTICE
Loading material into a dry system will cause the material to
stick to internal components and cure, causing damage and
requiring replacement of those parts. To prevent material
curing in system, never load material into a dry system.
NOTICE
To prevent damage to pump seals caused by cavitation,
run the pump slowly until the system is primed.

Grounding
12 3A3437G
Grounding
Ground the sprayer by plugging it into an outlet that is
properly installed and grounded in accordance with all
local codes and ordinances. Do not modify the power
cord provided; if it does not fit the outlet, have the proper
outlet installed by a qualified electrician.
Extension Cords
• Use only a 3-wire extension cord that has a
grounding plug and a grounding receptacle that
accepts the plug on the product.
• Make sure your extension cord is not damaged
• If an extension cord is necessary, use 12 AWG (2.5
MM2) minimum to carry the current that the product
draws. An undersized extension cord results in a
drop in line voltage, loss of power, and overeating.
NOTE: Certain GFCI outlets have been known to trip
while using this product.
For 120V units, use a dedicated 15 amp circuit.
Power Requirements
The equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
Model Required Power Source Power Cord Connectors Supplied Local Adapters
230V, 1 phase,
50/16 Hz
One separate dedicated
circuit rated at a minimum of
10A
One IEC 3-20 C20 plugs Euro CEE7 (Europe)
AS/NZS (Australia)
120V, 50/60 Hz One separate dedicated
circuit rated at a minimum of
15A
One NEMA 5-15A plug
110V, 50/60 Hz One separate dedicated
circuit rated at a minimum of
15A
One IEC 60309 - 20A plug

Grounding
3A3437G 13
Setup
1. Turn the motor power switch (S) to OFF.
2. Ground sprayer (see Grounding, pg. 12). Plug the
power cord into a dedicated circuit. See Power
Requirements, pg. 12.
3. Check Throat Seal Liquid (TSL) level in packing nut
(D). Fill 1/2 full with TSL.
4. Connect air supply to applicator.
5. Attach check valve (optional). Remove fluid outlet
assembly (F). Attach check valve (M) to pump fluid
outlet. Attach fluid outlet assembly to check valve
(M) outlet.
NOTE: If a check valve (M) is being used, it must be
installed between the fluid outlet assembly (F) and the
pump lower to ensure proper operation of the pressure
relief valve.
NOTE: Check valve (M) is intended for use with low
viscosity fluids such as water resistive barriers.
6. Attach hose to applicator fluid inlet and pump fluid
outlet (F), then secure Velcro straps (V) around the
cam fitting.
7. Prime the system with water before using (see
Prime with Water, pg. 16).
To avoid tipping over, ensure cart is on a flat and level
surface. Failure to do so could result in injury or
equipment damage.

Flush
14 3A3437G
Flush
• Flush if the materials in the system are about to
reach their cure time.
• Flush any time the flow rate starts to decrease and
there are no clogs in the system, as this is a sign
that the material is starting to thicken and cure.
• Always flush the system at least twice, draining all
water between flushes then replacing with clean
water.
• Flush using water only.
1. Perform Pressure Relief Procedure, pg. 21.
2. Remove applicator tip and retainer.
3. Place applicator outlet in a waste container. The
waste container must be large enough to hold all
dispensed material.
4. Turn motor power switch (S) ON.
5. Turn adjustment knob (H) clockwise slowly to
increase pressure, until a steady stream flows from
gun.
6. When the material level in the hopper is within a few
inches of the material inlet at the bottom:
a. Scrape the material down the sides of the
hopper.
b. Fill the hopper with water as the material runs
out and continue dispensing.
c. Scrub the walls of the hopper with a scrub
brush.
7. When water begins to exit the applicator outlet,
increase the flow adjustment knob to flush heavy
sediments from the system.
8. Once heavy sediment has been flushed, pump the
remaining contaminated water out of the hopper.
9. Turn the motor power switch (S) OFF.
10. Remove the hopper and hopper elbow. Clean all
residual material, then re-install the elbow onto the
system. See Hopper Removal, pg. 22
NOTICE
Failure to flush prior to material curing in the system will
result in damage to system and may require replacement of
all system parts in contact with the material.
NOTICE
The fluid/drain purge valve must be flushed to prevent
material hardening in fluid/drain purge valve. If that is not
sufficient, remove, disassemble, and clean the valve then
reinstall.

Flush
3A3437G 15
11. Circulate clean water:
a. Fill the system hopper with clean water.
b. Turn the motor power switch (S) to ON to begin
circulating water. Increase flow and pump for
several cycles.
c. While pumping, open the fluid drain/purge
valve. Allow the water to flush out any material
to prevent material hardening in the valve. Once
the water appears clean, close the fluid
drain/purge valve.
d. Turn the motor power switch (S) to OFF.
12. Remove the applicator and clean/flush separately.
a. Make sure all parts are free of residual material.
b. Turn on air to make sure air lines are free of
obstructions.
13. Remove the remaining material with a hose
clean-out ball.
a. Place the hose outlet back in the waste
container.
b. Remove the hose inlet from the pump outlet and
place a hose clean-out ball withing the hose
inlet. The ball must be wetted down before
inserting. If using a 1 in. whip hose, begin with
the smallest clean-out ball.
c. Reattach the hose to the pump outlet and turn
the motor power switch (S) to ON to resume
flushing the hose.
d. The hose clean-out ball will be pushed out of
the hose after several minutes. Once the ball is
pushed through the hose, turn the motor power
switch (S) to OFF. Repeat until all sediment is
removed from the hose.
e. If using a 1 in. whip hose, remove the hose and
transition fitting and repeat the process using
the large clean-out ball on the remaining hoses.
Once the ball is pushed out, pump out the
remaining water in the hopper, then reattach the
transition fitting and whip hose.
14. Drain remaining water from system:
a. Place a drain pan beneath pump lower inlet
connection.
b. Detach the hopper (see Hopper Removal, pg.
22).
c. Use a screwdriver to lift the pump lower inlet
ball. This will drain the remaining water from the
pump lower. When the pump stops draining,
release the pump lower inlet ball.
d. Disconnect the hose from the pump lower
outlet.
e. Starting at the pump, raise the hose bundle
above your head and slowly move towards the
applicator. As you move towards the applicator,
the remaining fluid in the hose will drain from
the applicator into the bucket.
f. Reattach the hopper to the pump.
15. Dispose of all waste material in accordance with
local rules and regulations. See manufacturer’s
SDSs for additional information.
NOTICE
Material left on the throat seal can dry out and damage the
seal. Always stop the pump at the bottom of the stroke to
avoid damage to the throat seal.

Prime with Water
16 3A3437G
Prime with Water
1. Fill the hopper with clean water.
NOTE: Some materials require a slicking agent to be
run through the hose. Consult the material manufacturer
for recommendation.
2. Turn the flow adjustment knob (H) counterclockwise
until it stops.
3. Place the applicator into a waste container.
4. Turn the motor power switch (S) to ON.
5. Turn the flow adjustment knob (H) clockwise slowly
to increase pressure, until water is purged out.
6. Run the clean-out ball(s) to coat the inside of the
hoses.
a. Remove the applicator from the end of the
hose.
b. Remove the hose inlet from the pump outlet and
place a hose clean-out ball within the hose inlet.
The ball must be wetted down before inserting.
If using a 1 in. whip hose, begin with the
smallest clean-out ball.
c. Reattach the hose to the pump outlet and turn
the motor power switch (S) to ON to resume
flushing the hose.
d. The clean-out ball will be pushed out of the
hose after several minutes. Once the ball is
pushed through the hose, turn the motor power
switch (S) to OFF.
e. Is using a 1 in. whip hose, remove the hose and
transition fitting and repeat the process using
the large clean-out ball on the remaining hoses.
Once the ball is pushed out, pump out the
remaining water in the hopper, then reattach the
transition fitting and whip hose.
7. Remove the hose inlet from the pump outlet and
walk the water out of the hoses.
a. Starting at the pump, raise the hose bundle
above your head and slowly move towards the
applicator end. As you move towards the
applicator end, the remaining water will drain
from the hoses.
8. Detach the hopper from the pump (see Hopper
Removal, pg. 22) and properly dispose of any
remaining water according to local and state
regulations.
9. Use a screwdriver to lift the pump lower inlet ball
and drain the remaining water from the pump lower.
Once the pump stops draining, release the lower
inlet ball.
10. Reattach the hopper to the pump.
11. The system is ready to prime with material.
NOTICE
To prevent material curing in the system, never load mate-
rial into a dry system. Loading material into a dry system
will cause the material to stick to internal components and
cure, causing damage and requiring replacement of those
parts.
NOTICE
To prevent damage to pump seals caused by cavitation,
run the pump slowly until the system is primed.

Mix the Material
3A3437G 17
Mix the Material
Always follow the material manufacturer’s instructions for
the material being sprayed. Material must be thoroughly
mixed to a smooth consistency before loading it in the
hopper.
NOTE: For stucco base and base coats, it is
recommended to use a standard 8 oz. x 4 in. steel
plumb bob (not provided) as a gauge for material
pumpability. With the tip of the plumb bob barely
touching the material, let the plumb bob drop into the
material. If the plumb bob sinks 3/4 of the way or more,
the material is sufficient consistency.
Managing Material After Mixing:
1. Pay close attention to the work life of the material
being used.
2. Only mix the material kits as needed. Do not let
mixed material sit longer than necessary.
3. Scrape material down the sides of the hopper as the
hopper material level lowers. Do not let older
material cure on the walls.
4. To ensure that all material in the hopper is used
while fresh, occasionally wait until the hopper is
almost empty before refilling.
Prime with Material
The applicator must be removed before priming. Always push
out any remaining water into a waste container before
circulating material. Always circulate clean material back into
the spray hopper for several cycles before beginning to spray.
1. Prime the system with water. See Prime with Water, pg.
16.
2. Mix the material. See Mix the Material, pg. 17.
3. Turn the flow adjustment knob (H) counterclockwise until
it stops.
4. Remove the applicator.
5. Fill the clean hopper with material to be sprayed.
6. Place the hose outlet in a waste container.
7. Turn the motor power switch (S) to ON.
8. Turn the flow adjustment knob (H) clockwise slowly to
increase pressure until water is purged out and a steady
stream of material flows from the applicator.
9. To stop dispensing, turn adjustment knob (H)
counterclockwise until it stops.
10. Install applicator.
NOTE: For EIFS finish coats, before installing the applicator,
prime the larger ID hose, then install and prime the transition
fitting and whip hose.
11. Recirculate several cycles on material to make sure the
material is flowing properly.
12. Turn the flow adjustment knob (H) counterclockwise to
stop the pump.
13. Install the air line and a tip onto the applicator (see
applicator manual). The system is now primed and read to
spray.
NOTICE
Loading material into a dry system will cause the material to
stick to internal components and cure, causing damage and
requiring replacement of those parts. To prevent material
curing in the system, never load material into a dry system.
NOTICE
To prevent damage to pump seals caused by cavitation,
run the pump slowly until the system is primed.

Spray
18 3A3437G
Spray
Prevent Pack-Out
To avoid “packing out” the pump or hose:
• Use the lowest pressure and largest nozzle size that
provides an acceptable spray pattern. This will also
result in seals and wear parts lasting much longer.
• Do not use any more fluid hose than is necesary
(minimum 25 ft.).
• Use an applicator with a rubber tip retainer that will
blow off it if plugs (pole gun applications only).
Before Starting or Stopping Material Flow
Always have the atomizing air turned on at the
applicator before and after spraying fluid (see applicator
manual).
Spraying
1. Prime with Water, pg. 16.
2. Mix the Material, pg. 17.
3. Prime with Material, pg. 17.
4. Turn on atomizing air and adjust the air needle
valve on the applicator (see applicator manual).
5. Turn the motor power switch (S) to ON.
6. Turn flow adjustment knob (H) until desired flow is
reached. Turn clockwise to increase flow,
counterclockwise to decrease flow.
Typical knob range for stucco:
Typical knob range for EIFS base and finish coats:
7. If the system is approaching its cure time or the
system will be idle for enough time for material to
begin curing in the system, flush the system, see
Flush, pg. 14.
NOTICE
• Do not allow pump to run without material in the
hopper. It can cause damage to the pump seals.
• Failure to flush prior to material curing in the system
will result in damage to system and may require
replacement of all system parts in contact with the
material.
NOTICE
Failure to flush prior to material beginning to cure in the
system will result in damage to system and may require
replacement of all parts in contact with the material.

Spray Adjustments (Pole Spray Applicator)
3A3437G 19
Spray Adjustments (Pole Spray Applicator)
NOTE: See the Pole Spray Applicator manual for model
information.
General Adjustments
The spray pattern can be adjusted by changing:
•Tip (CG) size
•Fluid and/or air flow
•Air Needle (CD) position
The standard applicator adjustment is to adjust the air needle
(CD) slightly behind the fluid tip. Fully open the air ball valve
(CB) for the minimum air flow necessary for a good pattern.
NOTE: Installing the needled (CD) too far forward can reduce
the orifice size, stopping material flow.
Air bleeds from the applicator nozzle whenever the applicator
air ball valve (CB) is open. Close the valve to stop the air if
desired. Otherwise, the air valve can stay open during priming.
Adjusting the spray pattern requires testing to balance the fluid
flow and the air to the applicator, and requires the correct tip
size.
Spraying Techniques
1. Test the spray pattern on cardboard. Hold the applicator
18 - 30 in. (45 - 76 cm) away from the surface. Use this
spraying distance for most applications.
2. Adjust fluid flow until material flow is adequate.
3. Adjust the applicator air ball valve (CB) to achieve a
uniform round spray pattern.
4. Consider the size of aggregate in the material and the
coarseness of the spray pattern. Larger nozzles allow
heavier patterns.
5. Overlap each stroke 50%. A circular overlapping pattern
may give the best results.
When spraying small confined areas use the air ball valve
(CB) and air needle (CD) to make fine adjustments without
adjusting the pump.
Material Flow Adjustment
For a lighter spray pattern, adjust the air needle (CD) closer to
the fluid nozzle and/or reduce the fluid flow. For a heavier
spray pattern, adjust the air needle (CD) father back from the
fluid tip and/or increase the fluid flow.
NOTE: Withdrawing the needled (CD) too far can force air
pressure back into the fluid hose, which can slow material
flow.
Air Flow Valve Adjustment
To decrease air flow, turn the air ball valve (CB) clockwise. To
increase air flow, turn the air ball valve (CB) counterclockwise.
Check the material ad thing it as needed to maintain the
proper consistency. The material may thicken as it sits and
could slow down application or affect the spray pattern.
Flush and dry the applicator thoroughly at the end of each use.
Blow air through the needle after the applicator is clean to
ensure that no material is blocking air flow.
Installing Nozzle Retaining Cap
1. Place the nozzle retaining cap (CC) over the top lip of the
applicator housing.
2. Turn the rubber retainer back and forth to make sure it is
fully seated.
3. Turn the rubber retainer back and forth to be sure it is fully
seated.
NOTE: The rubber gasket in the cam and groove inlet fitting
and the rubber nozzle retainer should be hand-cleaned and
dried after each use.
Key:
CA Air Assist Air Line
CB Air Assist Shutoff Ball Valve
CC Rubber Tip Retainer
CD Air Needle (adjustable position)
CE Air Needle Retaining Screw
CF Fluid Hosing
CG Tip (Nozzle)
ti28419b
CA CB
CD CE
CF
CC
CG

Spray Adjustments (HTX™Applicator)
20 3A3437G
Spray Adjustments (HTX™Applicator)
NOTE: See the HTX Applicator manual for model information.
When Spraying
1. Set material flow. See applicator instruction manual for
additional information.
2. Spry test pattern.
3. Turn the air knob ON and adjust, and/or select another air
nozzle for desired pattern.
NOTE: Air continues to flow when the handle is in the OFF
position to keep material out of air passages.
General Adjustments
The spray pattern can be adjusted by changing:
•Tip (DC) size
•Fluid flow
•Air flow, use needle valve (DE)
The standard applicator adjustment is to fully open the air
assist valve (DF) while adjusting the needle valve (DE) for the
minimum air flow necessary for a good pattern.
Air bleeds from the applicator nozzle whenever the air assist
valve (DF) is open. Close the valve to stop the air flow if
desired. Otherwise, the air valve can stay open during priming.
Air must be on prior to fluid flow.
Adjusting the spray pattern requires testing to balance the fluid
flow and the air to the applicator, and requires the correct tip
size.
Air Flow Valve Adjustment
To decrease air flow, turn the valve knob (DE) clockwise. To
increase air flow, turn the valve knob (DE) counterclockwise.
Check material and thin as needed to maintain the proper
consistency. The material may thicken as it sits and could slow
down application or affect the spray pattern.
Flush and dry the applicator thoroughly at the end of each use.
Spray Techniques
1. Test the spray pattern on cardboard. Hold the applicator
6-18 in. (15-46 cm) from the surface. Use this spraying
distance for most applications.
2. Adjust fluid flow until material flow is adequate.
3. Adjust the applicator air assist needle valve to achieve a
uniform round spray pattern.
4. Consider the size of the aggregate in the material and the
coarseness of the spray pattern. Larger nozzles allow
heavier patterns.
5. Overlap each stroke 50%. A circular overlapping pattern
may give the best results, and is obtained by grasping the
flex-head and swinging the head around as the hose
flexes.
When spraying small confined areas use the valve and knob to
make fine adjustments without adjusting the pump.
Cleanup
Thoroughly flush applicator after each work session before
fluid begins to cure in the applicator. Remove the check valve
and clean all residue from air passages. Store in a dry
location. Do not leave the applicator or any parts in water or
cleaning solvents.
NOTE: The check valve will be damaged if any object is
inserted into the valve.
Key:
DA Air Assist Air Line
DB Fluid and Air Manifold
DC Tip (Nozzle)
DD Tip Retainer
DE Air Assist Needle Valve
DF Air Assist Shut Off Ball Valve
DG Check Valve
ti28420b
DA
DE DG DF DB DD
DC