U.S.SAWS One Man User manual

Operating Manual
Dual Component
Polymer Pump
1-877-817-6687
www.ussaws.com
One Man

One Man Dual Component Polymer Pump 2
Table of Contents
Symbols & Labels 3
Safety 4
Set - Up and Operation 5
Troubleshooting 9
Disclosure 11
Parts 12
Introduction
This manual outlines the maintenance and operation of the Dual Component Polymer Pump.
This is a professional tool and is intended for use by trained and experienced operators.
To get maximum benet from your tool and to ensure maximum safety, be sure to read this manual
thoroughly. You should also periodically review safety instructions.
Specications
Part Number SX20500
Capacity 2 - 6.5 Gallon Tanks
Electrical Requirements 120 V
Motor 1/2 HP
Weight 220 lbs
Revision Date 8/26/2019

One Man Dual Component Polymer Pump 3
THE FOLLOWING SYMBOLS AND DEFINITIONS ARE FOUND THROUGHOUT THIS
MANUAL AND ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR
UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not
avoided, could result in death or serious injury.
A potentially hazardous situation exists which, if not
avoided, may result in minor or moderate injury or
property damage.
A potentially hazardous situation exists which, if not
avoided, may result in product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE TOOL.
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always wear a protective helmet
WARNING
CAUTION
IMPORTANT
Always wear protective glasses or full face protection
Always wear hearing protection
Always use ground fault protection
Always wear breathing protection
Symbols & Labels

One Man Dual Component Polymer Pump 4
Safety
Work area safety
Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Donotoperatepowertoolsinexplosiveatmospheres,suchasinthepresenceofammableliquids,gasesor
dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
Electrical safety
Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with
earthed(grounded)powertools.Unmodiedplugsandmatchingoutletswillreduceriskofelectricshock.
Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There
is an increased risk of electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric
shock.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable
for outdoor use reduces the risk of electric shock.
If operating the power tool in damp locations is unavoidable, use a Ground Fault Circuit Interrupter (GFCI)
protected supply. Use of an GFCI reduce the risk of electric shock.
Personal safety
Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power
toolwhileyouaretiredorundertheinuenceofdrugs,alcoholormedication.Amomentofinattentionwhile
operating power tools may result in serious personal injury.
Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-
skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and /
orbatterypack,pickinguporcarryingthetool.Carryingpowertoolswithyourngerontheswitchorenergizing
power tools that have the switch on invites accidents.
Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a
rotating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in
unexpected situations.
Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving
parts. Loose clothes, jewelry or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are
connectedandproperlyused.Useofdustcollectioncanreducedustrelatedhazards.
Power tool use and care
Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the
job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with
the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or the battery pack from the power tool before making any
adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of
Read all safety warnings and all instructions
WARNING

One Man Dual Component Polymer Pump 5
Dual Component Polyurea Pump
SX20000
Safety
1. Become completely familiar with the US Saws SX20000 Dual Component Polyurea Pump
before operation.
2. Read, understand and follow all safety, transportation and storage recommendations on the
Material Safety and Data Sheets of the material that will be dispensed.
3.
Keep hands, fingers and clothing free from all moving parts including gears, chains and other
moving parts while operating the pump.
4. Never run the pump without the gear/chain guard in place.
5. Disconnect power supply before servicing gear/chain or changing gears.
6. Disconnect power supply before opening or servicing the electrical components.
7. Make sure there is adequate ventilation If a gas powered generator is being used to supply
power.
8. Secure the pump before transporting.
Safety
starting the power tool accidentally.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or
these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other
condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to
bind and are easier to control.
Service
Haveyourpowertoolservicedbyaqualiedrepairpersonusingonlyidenticalreplacementparts.Thiswill
ensure that the safety of the power tool is maintained.
Riskofinjurytouser.Thepowercordmustonlybeservicedbyacertiedrepairfacility.
Warnings
GFCI and personal protection devices like electrician’s rubber gloves and footwear will further enhance your
personal safety.
Keep handles dry, clean and free from oil and grease. Slippery hands cannot safely control the tool.
Develop a periodic maintenance schedule for your tool. When cleaning a tool be careful not to disassemble
any portion of the tool since internal wires may be misplaced or pinched or safety guard return springs may
be improperly mounted. Certain cleaning agents such as gasoline, carbon tetrachloride, ammonia, etc. may
damage plastic parts.
Wear hearing protection. Prolonged exposure to high intensity noise can cause hearing loss.
Use thick cushioned gloves and limit the exposure time by taking frequent rest periods. Vibration caused by the
use of power tools may be harmful to your hands and arms.
Do not use vacuum or other dust collection system when cutting metal. Sparks from metal cutting can cause
reinthecollector.
California Proposition 65 Warning
This product contains or emits one ore more
chemicals known to the state of California to cause
cancer and birth defects or other reproductive harm.
WARNING
Some examples of these chemicals are:
• Nickel
• Crystalline silica from bricks and cement and other masonry products
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment,
suchasthosedustmasksthatarespeciallydesignedtolteroutmicroscopicparticles.
www.P65Warnings.ca.gov

One Man Dual Component Polymer Pump 6
Set-up and Operation
Key Elements:
1. Clean tanks, pumps, lines, and manifold
2. No cross contamination,
3. Proper mixing ratio = proper material cure
Prior to use:
1. Inspect tanks for evidence of loose particles or debris.
2. Inspect manifold (located at the end of the dispensing wand where both
hoses attach. The static mixing element attaches to the manifold with a
7/8” static mixer nut) - Inspection should be performed at the start of each
day’s work and consists of the following:
 a.Removehosesconnectedtomanifoldandremove90degreetting.
b. Inspect for and remove any debris or contamination that might clog
the exit hole. A 1/4” drill bit can generally be used to clean the exit
hole.
c. Reconnect lines to manifold.
3. Ifhydraulicuidremainsinthetank(usedforushingandpumpstorage
and should be left at least a couple inches deep in the tanks when not in
use)pluginpowersupplyandtriggerapplicatorguntodispenseuid.
 a.Watchuidowoutofmanifoldandinspectforclogorunevenow.
 b.Usinggraduatedmeasuringcups,dispenseuidintocontainersto
check for proper ratio.
4. Afterconrmingratioiscorrectandthatnocontaminationremainsinthe
linesorinthemanifold,dispenseremaininghydraulicuidtoemptythe
tanks.
5. The unit is now ready for use.
Dispensing Filler:
1. Priortolingtanks,premixthePartAPolyol(graycomponent).
2. Ensure that Part A material is placed in Part A tank and Part B material is
placed in Part B tank. DO NOT CROSS CONTAMINATE. It is advised to keep
thelidonthetankthatisnotbeinglled.
Set-up and Operation

One Man Dual Component Polymer Pump 7
Set-up and Operation Set-up and Operation
3. Afterllingtanks,dispensepolyureathroughmanifoldassemblywatching
ow.Anerrantstreamoutofoneorbothsidesofthemanifoldwillgenerally
indicate that there is a restriction in the manifold and disassembly and
cleaning should be performed.
4. Ifowisevenandequal,attachstaticmixingtiptoendofmanifold.
5. Dispense a small amount of material through the tip into waste container
to ensure thorough mixing in the tip. Then dispense small amount of
material onto cardboard or other disposable sheet to monitor cure. Allow
tosetfor10-15minutesoruntilsignicantcurehasbeenachievedpriorto
commencing. This will ensure proper ratio and cure of future material.
6. While waiting on test material to cure, remove static mixing tip and discard.
7. Pumpgrease(whitelithiumsuppliedwithpump)intottingsonmanifoldto
prevent cross contamination.
8. Uponconrmationoftestsamplecure,installnewstaticmixingtip.
9. Installllerintojointofcrackperproductinstallationguidelines.
Work Interruption:
1. If work is stopped for short term (5 minutes or so, to move pump, etc.)
periodically trigger applicator wand to dispense material every 30-45
seconds to ensure material in static mixing tip does not set.
2. If dispensing is stopped for longer term (lunch break, etc.) remove static
mixingtipanddiscard.PumpGreaseintottingsonthemanifoldas
described above. Upon commencement, re-install a new static mixing tip.
End of Day:
1. If possible, stop material placement when tanks are “nearly” empty
(material is down to within a couple of inches of the tank bottom). DO NOT
RUN tanks dry of polyurea or improper ratio and cure may result if one tank
empties slightly ahead of the other.
2. In case material is run to the bottom of the tank, remove static mixing tip
and dispense remaining material into a waste container until tanks are
empty and line sputters at the static tip.
 a.Fillbothtankswithhydraulicuidtoapproximately3inchesfromthe
bottom.
 b.Dispensehydraulicuidtopurgethepumpsandlines.Ensuresome

One Man Dual Component Polymer Pump 8
 uidremainsinthetanksoncecomplete.
 c.Greasethettingsonthemanifoldandsecurefornextuse.
3. In case several inches of polyurea remains in the tank at day’s end AND,
pumpwillbeusedtoplaceadditionaljointllerthefollowingday,itcanbe
possible to leave the material in the machine overnight using the following
procedure. NOTE: Do not leave polyurea in the tanks or within the system
(tanks, pumps, lines, manifold) if material placement will not be performed
the following day.
a. Remove static mixing tip.
 b.Greasethettingsonthemanifoldandsecurefornextuse.
 c.FillIsosidetank(PartBforMetzger/McGuirejointllers,amber 
colored side) with Iso product to within a couple inches of the top
of the tank.
d. Press a new clean plastic bag, or similar plastic sheeting, over tank
and into top of product lapping excess plastic over the top sides of
the tank. By doing this, excess air potentially containing moisture or
humidity is forced away from the top of the polyurea Iso component.
e. Place tank lid over plastic sheeting and secure.
f. At next use, a thorough evaluation must be done as indicated in
the “Prior to Use” section to ensure no cross contamination exists
in the manifold.
Set-up and Operation
Next Day Use:
1. Itisalwaysadvisabletore-checkthemanifoldrstbyremovingthecheck
ball assembly and inspecting for clogs and also re-checking ratio by
dispensing a small amount of material into graduated plastic containers.
2. Before use, cure test should be performed by dispensing through the static
mixer onto a cardboard or plastic sheet and monitored for 10-15 minutes to
conrmcurepriortocommencementofllerplacement.
3. Follow instructions outlined above under “Prior to Use” and “Dispensing
Filler”.
Set-up and Operation

One Man Dual Component Polymer Pump 9
Set-up and Operation
End of Project:
1. Dispense all remaining polyurea into waste container.
2. Oncepolyureahasbeendispensed,partiallylleachtankwithhydraulic
uidandrunthroughthemachinetoensurepumpsandlineshavebeen
purged.
3. Greasettingsonthemanifold.
4. Wrap mixing manifold with plastic or shrink wrap tightly sealing end and
preventing moisture exposure and absorption into manifold.
5. Package up for storage.
Set-up and Operation

One Man Dual Component Polymer Pump 10
Troubleshooting
Problems During Dispensing Polyurea Joint Filler:
1. Materialowingslowly:
A. May occur when material temperature is cool and in the case of
cooler/freezerenvironments.Preheatmaterialand/orstoreoutside
 ofcooler/freezerarea.Forfreezerinstallations,tankheatersshould
be used to maintain a “pumpable” viscosity.
B. May occur if static mixing manifold has buildup or restriction in the
outletorice.Removepumplinesfromthemanifold,removettings,
plastic washer, check ball, and spring and ensure no buildup or
restrictionispresent.Inspectoutletoriceforrestrictionanddrillout
if buildup is present.
C. May occur if mixed material begins to “gel” inside of the static mixing
element (tip). This typically will occur when jumping from joint to
joint allowing mixed product to set inside the plastic mixer without
purging. Purging the static mixing element should be done
approximately every 45 seconds with most M/M products.
2. MaterialSTOPSowing:
A. Check main power supply to ensure voltage is entering the speed
control unit. Inside the control box cover located on the face of the
circuit board a GREEN LED light should be illuminated when proper
voltage is present. If indicator light is off (switch is on), check main
power supply cord to ensure power is being supplied to the control
box. Correct if necessary. If control box is receiving power and the
light on the front is OFF, check 12A ceramic fuse behind the control
box cover (left side of electrical panel). Replace if necessary.
B. If control box is receiving power and the LED light on the circuit board
is ON, check 8A MDL (slow burn) fuse behind the control box cover
(right side of electrical panel). DISCONNECT POWER before removing
or testing fuses! Replace if necessary. Burnt 8A MDL fuses will be
the primary cause for NO FLOW situations and will typically occur
when the motor is being placed under excess strain. Most common to
 occurwhendispensingincoldenvironmentsorfreezer/cooler 
installations.
C. If control box fuses are not “blown”, check trigger switch mechanism
Troubleshooting