Aztec LOWRIDER 21 User manual

LOWRIDER OWNER’S MANUAL PAGE 1
01-2018
OWNER’S MANUAL
THE LOWRIDER
Propane Burnisher (21”, 24” and 27”)
WWW.AZTECPRODUCTS.COM
800-331-1423 * 201 COMMERCE DRIVE, MONTGOMERYVILLE, PA 18936

LOWRIDER OWNER’S MANUAL PAGE 2
01-2018
TABLE OF CONTENTS
TABLE OF CONTENTS PG 2
INTRODUCTION PG 3
GENERAL SAFETY MESSAGE INFORMATION PG 3-9
IMPORTANT SAFETY INSTRUCTIONS PG 4
GUIDE TO GRAPHICAL SYMBOLS AND PRODUCT LABELS PG 4
GENERAL OPERATION SAFETY INFORMATION PG 5-7
STORAGE AND HANDLING SAFETY INFORMATION PG 8
RETAILER/DISTRIBUTOR CONTACT INFO PG 8
MAINTENANCE SAFETY INFORMATION PG 9
BEFORE OPERATION CHECKLIST PG 10-11
LOWRIDER OPERATION PG 12-14
LOWRIDER - GETTING STARTED PG 15
LOWRIDER BELT & BRUSH MAINTENANCE PG 16
STARTING THE ENGINE PG 16
ADJUSTING PAD PRESSURE PG 16
STOPPING THE ENGINE PG 17
LOWRIDER CLEAN-UP PG 17
TRANSPORTING THE LOWRIDER PG 17-18
STORING THE MACHINE & PROPANE TANKS PG 18
NOTES PG 18
ENGINE MAINTENANCE SAFETY PG 19-24
ENGINE MAINTENANCE METER PG 19
ENGINE OIL & MAINTENANCE PG 20
RECOMMENDED OIL & OIL LEVEL CHECK PG 20
OIL CHANGE PG 21
OIL FILTER CHANGE PG 21
PUREPOWER ENGINE MAINTENANCE SCHEDULE PG 22
TROUBLESHOOTING - ENGINE PG 23
ENGINE BATTERY START WIRING DIAGRAM PG 23
PUREPOWER ENGINE TUNE-UP SPECS PG 24
TROUBLESHOOTING –ELECTRICAL SYSTEM PG 25
LOWRIDER QUICK START GUIDE PG 26
SAFETY LABEL LOCATIONS PG 27
PARTS LIST FOR LOWRIDER BODY ASSEMBLY PG 28-29
LOWRIDER HANDLE ASSEMBLY PG 30
FUEL SYSTEM PARTS PG 31
PUREPOWER ENGINE PARTS PG 32
WARRANTY PG 33

LOWRIDER OWNER’S MANUAL PAGE 3
01-2018
INTRODUCTION
Thank you for purchasing this Aztec Products, Inc. machine. You have purchased a quality product
and we welcome you to the Aztec family. It is critically important to utilize proper training,
understanding, maintenance and care for this product. Neglect of the Safety Messages, especially
the DANGER, WARNING, CAUTION and NOTICE statements throughout this Owner’s Manual may
lead to serious injury or death, and/or cause damage to the floor and/or facility.
For best results from your Aztec machine, you must read and understand this Owner’s Manual, and
follow all operation guidelines and safety messages. Protect your WARRANTY by following all
maintenance guidelines and keeping a dated log. If a problem should arise, consult an authorized
Aztec service center.
All information in this Owner’s Manual is up to date and based on the latest product information
available at the time of printing. Aztec Products, Inc. reserves the right to make changes at any time
without notice or incurring obligation. This Owner’s Manual and the maintenance log must be kept as
a permanent part of the machine and remain with the machine if resold.
No part of this document may be copied or reproduced without written permission.
GENERAL SAFETY MESSAGE INFORMATION
Your safety and the safety of others is very important. As the manufacturer, we have provided
important safety messages throughout this manual and on the machine. The purpose of these
safety messages is to prevent damage to you, your machine, the property, and/or the environment.
Please read and understand this information thoroughly. A safety message alerts you to potential
hazards that could result in injury or death, and/or cause damage to the floor and/or facility. Each
safety message is preceded by a universal safety alert symbol (!) and one of these safety words:
DANGER, WARNING, CAUTION, or NOTICE. These signal words mean:

LOWRIDER OWNER’S MANUAL PAGE 4
01-2018
IMPORTANT SAFETY INSTRUCTIONS
READ and UNDERSTAND all instructions and safety messages before operating this machine.
Follow the instructions given in this Owner’s Manual and the training given by your supervisor for the
safe operation of this machine. Failure to do so can result in personal injury and/or damage to the
machine or property.
GUIDE TO GRAPHICAL SYMBOLS AND PRODUCT LABELS
DANGER, WARNING OR CAUTION; read all instructions before using
Hot surface –Do not touch
Wear hearing protection when operating
Wear safety goggles when operating
Switch “On” Position
Switch “Off” position

LOWRIDER OWNER’S MANUAL PAGE 5
01-2018
GENERAL OPERATION SAFETY INFORMATION
Liquefied petroleum gas (LPG or propane) is stored under pressure and must be handled in the
proper mannerto be safe. Observe the following safety messages toget the best performance, lowest
emissions, and longest life out of your equipment.
The EPA has rated the PurePower by Aztec 603cc engine cleanest in the
industry for CO (carbon monoxide) emissions. (Source: https://www.epa.gov/compliance-and-fuel-
economy-data/engine-certification-data#small-nrsi).
Because CO is always a byproduct of internal combustion engines, it is
important to know the symptoms of CO exposure, which may include
drowsiness, dizziness, nausea, vomiting, confusion, collapse, loss of
consciousness and muscle weakness. If such symptoms occur during
operation with this machine, immediately shut off the machine and go outside for fresh air. Have a
qualified service technician testthe machinefor CO emissions before using again.Call for emergency
medical attention and DO NOT operate this machine or other propane powered equipment until
cleared by a physician. For more info on CO exposure effects, see
http://www.mayoclinic.org/diseases-conditions/carbon-monoxide/basics/symptoms/con-20025444.
No smoking, no sparks, no flames near machine, engine or LPG tank. Do
not operate this machine in an environment with a potential ignition
source.
If you smell gas: immediately stop the unit, check for leaks, open
windows, don’t touch electrical switches, extinguish anyopen flames,and
contact a repair professional.
Never change or alter the propane control equipment. It is precisely tuned
to power machinery with minimal levels of carbon monoxide. Altering the
control equipment could cause dangerous levels of engine emissions.
Effective January 1, 2016, all Aztec Products, Inc. machinery is shipped
with propane tank equipped with Overfill Protection Device (OPD). If you
have an older LPG cylinder that is overfilled, always vent outdoors, away
from closed areas where gas may accumulate, and away from any fire,
flame, or spark-producing device. Use a screwdriver to vent excess propane, which escapes as a
white mist. Propane will vent clear when correct tank level has been achieved.
All Aztec propane powered machines are
designed specifically for use with a 20 lb
(5 gallon) vertical vapor withdrawal
propane cylinder. Use of a different
configuration cylinder or liquid withdrawal
cylinder is dangerous and could cause fire or explosion, and will void
the warranty.

LOWRIDER OWNER’S MANUAL PAGE 6
01-2018
Operate only in well ventilated areas. Buildings must be provided with:
A. A continuous mechanical ventilation that removes the products of combustion to the
outdoors of not less than 300 CFM for each 10,000 BTUH or fraction thereof; or
B. Natural ventilation of not less than 300 CFM for each 10,000 BTUH input or fraction
thereof, based on a maximum of one-quarter air exchange per hour for the net building volume.
Although this machinery utilizes a catalytic muffler to treat and minimize all
engine emissions, the exhaust may still contain trace amounts of chemicals known in the state of
California to cause cancer, birth defects or other reproductive harm.
Although this PurePower engine is equipped with a
catalytic muffler for safety, its exhaust may still contain trace amounts of
poisonous CO (carbon monoxide) gas and/or chemicals known in the state of
California to cause cancer, birth defects or other reproductive harm. Do not run the engine without
adequate ventilation.
Keep hands and feet clear of moving parts to avoid injury.
HOT MUFFLER CAN BURN YOU. Stay away if engine
has been running.
Muffler is HOT. Keep all heat sensitive objects away from the exhaust system
during and after operation. Damage can occur to the machine, furniture, buildings and/or personal
injury.
Do not operate machine in a stationery spot for more than a few seconds.
Machine is designed to be moved continuously forward at a measured pace. Stationary operation
will result in damage to floor surface.
Never let an untrained or irresponsible person operate the machine. They may
hurt themselves and/or damage the floor or other property.

LOWRIDER OWNER’S MANUAL PAGE 7
01-2018
Always check oil before attempting to start engine. Low oil mayresult in serious
and expensive engine damage.
Never complete the connection of the propane tank to the machine by using a
tool; always tighten and loosen by hand. Use of tools to tighten or loosen tank connection may result
in damage to tank valve and insecure connection. Listen for the rush of fuel to the lock-out device
when you open the tank valve. If you hear this, it will indicate that a good connection has been made
at the tank.
Do not leave this machine unattended while the engine is running. Damage to
floor surface or other property may occur and fumes may accumulate.
Do not operate machine in a stationery spot for more than a few seconds.
Machine is designed to be moved continuously forward at a measured pace. Stationary operation will
result in damage to floor surface.
When the LPG tank is attached to the machine and not running, the tank valve
must be in CLOSED position.
Using the electric starter for more than 10 seconds at a time will overheat the
starter motor and can damage it.
A “NO SMOKING” sign should be permanently displayed at the storage area.
Do not remove machine/engine labels and/or WARNING stickers on machine
or engine. If any labels or stickers come lose, call Aztec at [phone] for replacement.
Always remove Engine Key from switch when leaving engine will be
unattended or when engine is not in use.

LOWRIDER OWNER’S MANUAL PAGE 8
01-2018
STORAGE AND HANDLING SAFETY INFORMATION
Always store equipment away from heater rooms, boilers, gas-fired water
heaters or anyother source of openflame or ignition. The exhaust system
will be very hot and takes several minutes to cool, so keep yourself and
all materials clear.
Always store equipment away from possible damage by falling objects in
warehouse-type areas.
Always store LPG tanks outside. Remove all propane tanks from inside
building except during equipment use. Store them in a secure, well
ventilated area.
If the engine has been running, allow it to cool for at least 15 minutes before
loading the engine-powered equipment onto the transport vehicle. A hot engine and exhaust system
can burn you and can ignite some materials.
This propane-powered machine is intended for commercial use.
Safety is a full-time, every day job. Follow all information posted on the
machine and the LPG tank. Never allow anyone untrained to operate this machine, and who has
not read or cannot understand the given instructions.
RETAILER/DISTRIBUTOR CONTACT INFO
PURCHASE DATE:
DISTRIBUTOR NAME:
DISTRIBUTOR PHONE NUMBER(S):
PROTECT YOUR WARRANTY!
Read carefully; all questions regarding the care
and safety of this equipment, please call AZTEC PRODUCTS:
[phone]

LOWRIDER OWNER’S MANUAL PAGE 9
01-2018
MAINTENANCE SAFETY INFORMATION
Before attempting any service or maintenance, the engine switch must be
in the OFF position and the propane tank valve must be in CLOSED position.
Machine should only be tipped back for service if properly turned OFF, in a
safe environment and positioned on a flat surface. Do not tilt machine on its side; damage can
occur to the machine, furniture, buildings and/or personal injury.
Do not tilt machine on its side; damage can occur to the machine, furniture,
buildings and/or personal injury. Machine should only be tipped back to transport or for service, if
properly turned OFF, in a safe environment and positioned on a flat surface.
The manufacturer’s warranty will be voided if the machine is not maintained in
accordance with the recommended maintenance instructions within this Owner’s Manual, and the
engine manufacturer’s recommended maintenance procedures. Failure to do so may cause
damage to the machine, equipment, furniture, buildings, and/or personal injury.
An abbreviated, quick reference schedule of the manufacturer’s suggested
maintenance is on the underside of the operating handle. This abbreviated schedule is for quick
reference only and is not intended to replace the full maintenance schedule in the Owner’s Manual.
A maintenance record must be kept, indicating all dates of service, hours on
engine at time of service, and service performed to maintain manufacturer’s warranty coverage.
Perfect record keeping does not guarantee warranty coverage if the damage to the machine is non-
warrantable. See warranty coverage policy details at the end of this Owner’s Manual. The
maintenance record must be kept with the machine and transferred to the new owner if resold.

LOWRIDER OWNER’S MANUAL PAGE 10
01-2018
BEFORE OPERATION CHECKLIST
For your safety, to ensure compliance with environmental regulations, and to maximize the service
life of your equipment, it is very important to take a few minutes before you operate this machine to
check its condition. Be sure to take care of any problem you find, or have your service dealer correct
it before you operate this machine.
Improperly maintaining this machine and its engine, or failure to correct a
problem before operation, may cause a malfunction in which you can be seriously hurt or killed.
Always perform a pre-operation inspection before each use, and correct any problem.
Avoid use in areas with floor obstruction such as thresholds and floor outlet
boxes. Avoid use in areas with loose debris or small objects that may become caught in the rotating
pad.
Before beginning your pre-operation checklist, the machine and engine must be on a level surface,
with the engine switch in the OFF position, and the propane tank valve is in the CLOSED position.
Always check the following items before you start the engine:
A. READ AND UNDERSTAND ALL SAFETY MESSAGES
Carefully read and understand all SAFETY INSTRUCTIONS on pgs 3-9.
B. CHECK THE GENERAL CONDITION OF THE MACHINE
1.) Look around and underneath the machine and engine for signs of oil leaks.
2.) Remove any excessive dirt or debris, especially around the muffler and recoil starter.
3.) Look for signs of damage.
4.) Check that all shields and covers are in place, and all nuts, bolts and screws are tightened.
5.) Address all of the above issues before proceeding.
C. CHECK THE ENGINE
1.) Check the engine oil level and filters. Running the engine with a low oil level can cause
engine damage. Your first oil change should be after the first 8 hours of use.
2.) Check the air filter element (see pg 32). A dirty air filter element will restrict air flow to the
carburetor, reducing engine performance.
D. CHECK THE MAINTENANCE SCHEDULE
Review the maintenance log that must be kept with the machine. Perform any maintenance
necessary before proceeding. All machines are equipped with a multi-function maintenance
meter. The functions include the following: hour meter, service alert and tachometer. (See
ENGINE MAINTENANCE METER instructions on pg 19).