Lafferty A-40 SS Installation instructions
Lafferty Equipment Manufacturing, Inc.
Installation & Operation Instructions
Model # 969402 · A-40 SS Airless Foam Wand W/ Fan Nozzle
# 807069
REQUIREMENTS
Water Temperature up to 180°F
Pressure Washer
Must have factory equipped
chemical injector that
operates properly using a
black soap nozzle
Discharge Hose 3/8" ID minimum
OPTIONS
Pressure Washer Hose & Trigger Gun
HP 3/8" x 50' Hose & Trigger Gun Kit
WEIGHT & DIMENSIONS
Single Package
Shipping Weight 2 lbs.
Shipping Dimensions 15" x 8" x 5"
www.laffertyequipment.com
501-851-2820
OVERVIEW
Designed to replace the black soap nozzle on pressure washers that use a factory chemical injector. The A-40 Airless Foam Wand quick connects to a pressure
washer gun and injects atmospheric air into the chemical solution to greatly increase volume and coverage ability. This stainless steel unit will create and project wet,
clinging foam on to any surface in a fan pattern or zero degree stream for increased foam throw distance.
W AR N I N G ! R E A D A L L
I N S T R U C T I O N S B E F O R E
U S I N G E Q U I P M E N T !
Lafferty Equipment Manufacturing, Inc. • 5614 Oak Grove Road • North Little Rock, Arkansas 72118
SAFETY & OPERATIONAL PRECAUTIONS
For proper performance do NOT modify, substitute nozzle, hose diameter or length.
Manufacturer assumes no liability for the use or misuse of this unit.
Wear protective clothing, gloves and eye wear when working with chemicals.
Always direct the discharge away from people and electrical devices.
Follow the chemical manufacturer's safe handling instructions.
TO INSTALL (REFER TO DIAGRAM ON NEXT PAGE)
1. Remove the rinse nozzle and quick connect the airless foamer to your trigger gun. (1/4" quick connect).
TO OPERATE
1. Remove the rinse nozzle and quick connect the foam wand to your trigger gun as shown in the diagram. If your trigger gun doesn't have quick disconnects you will have to
install them.
2. Hold the trigger gun firmly and direct the discharge in a safe direction. Pull the trigger and begin foam application. (Ensure chemical is designed for foaming)
969402 • A-40 SS Airless Foam Wand W/ Fan Nozzle
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969402 • A-40 SS Airless Foam Wand W/ Fan Nozzle
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Troubleshooting Guide
Problem Possible Cause / Solution
Startup Maintenance
A) Does not foam properly
B) Using too much chemical
1, 2, 3, 4
5
6
6
Possible Cause / Solution
Startup Maintenance
1. GPM too low
See requirements.
2. Wand solution inlet clogged
Clean the wand solution inlet. DO NOT DRILL OUT
3. Ensure chemical is recommended for foaming and/or the
application
See chemical manufacturer.
4. Dilution too weak / Chemical is very thick.
Adjust injector at the pressure washer/pump
5. Dilution too strong
Adjust injector at the pressure washer/pump
6. Chemical injector at the pressure washer may be
malfunctioning
Consult pressure washer manual
PREVENTIVE MAINTENANCE: When the unit will be out of service for extended periods, place chemical tube(s) in water and flush the chemical out
of the unit to help prevent chemical from drying out and causing build-up. Periodically check and clean chemical strainer and replace if missing.
969402 • A-40 SS Airless Foam Wand W/ Fan Nozzle
December 26th 2020 - Page 4 -
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