Ariens 946150 ST622 CARB User Manual
String Trimmer
Owner/Operator Manual
Model
946150 – ST622 CARB
ENGLISH
01284000 11/07
Printed in USA
TABLE OF CONTENTS
OX0240
Serial
Number
Label
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 9
Controls and Features . . . . . . . . . . . . 10
Operation. . . . . . . . . . . . . . . . . . . . . . . 11
Maintenance . . . . . . . . . . . . . . . . . . . . 13
Service and Adjustment s. . . . . . . . . . 14
INTRODUCTION
NON-ENGLISH MANUALS
Manuals in languages other than English may
be obtained from your Dealer. V isit your dealer
or www.ariens.com for a list of languages
available for your equipment.
Manuals printed in languages other than
English are also available as a free download
on our website:
http://www.ariens.com
MANUALES EN IDIOMAS
DIFERENTES DEL INGLES
Puede obtener manuales en idiomas
diferentes del inglés en su distribuidor. Visite a
su distribuidor o vaya a www.ariens.com para
obtener una lista de idiomas disponibles para
su equipo.
También puede imprimir manuales en idiomas
diferentes del inglés descargándolos
gratuitamente de nuestra página Web:
http://www.ariens.com
Troubleshooting . . . . . . . . . . . . . . . . . 18
Storage. . . . . . . . . . . . . . . . . . . . . . . . . 19
Service Par ts . . . . . . . . . . . . . . . . . . . . 19
Specifications . . . . . . . . . . . . . . . . . . . 19
Warranty. . . . . . . . . . . . . . . . . . . . . . . . 20
All reference to left, right, front, or rear are
given from operator standing in operation
position and facing the direction of forward
travel.
MODEL AND SERIAL NUMBERS
When ordering replacement parts or making
service inquiries, know the Model and Serial
numbers of your unit and engine.
Numbers are located on the product
registration form in the unit literature package.
They are printed on a serial number label,
located on the frame of your unit.
MANUELS NON ANGLAIS
Des manuels dans différentes langues sont
disponibles chez votre revendeur. Rendezvous chez votre revendeur ou allez sur le site
www.ariens.com pour consulter la liste des
langues disponibles pour votre équipement.
Les manuels imprimés dans des langues
différentes de l'anglais sont également
disponibles en téléchargement gratuit sur
notre site Web :
http://www.ariens.com
THE MANUAL
Before operation of unit, carefully and
completely read your manuals. The contents
will provide you with an understanding of
safety instructions and controls during normal
operation and maintenance.
• Record Unit Model and Serial numbers
here.
• Record Engine Model and Serial numbers
here.
GB - 4
© Copyright 2007 Ariens Company
PRODUCT REGISTRATION
The Ariens dealer must register the product at
the time of purchase. Registering the product
will help the company process warranty claims
or contact you with the latest service
information. All claims meeting requirements
during the limited warranty period will be
honored, whether or not the product
registration card is returned. Keep a proof of
purchase if you do not register your unit.
Customer Note: If the Dealer does not
register your product, please fill out, sign and
return the product registration card to Ariens
or go to www.ariens.com on the internet.
UNAUTHORIZED REPLACEMENT
PARTS
Use only Ariens replacement parts. Replacing
any part on this vehicle with anything other
than an Ariens authorized replacement part
may adversely affect the performance,
durability, or safety of this unit and may void
the warranty. Ariens disclaims liability for any
claims or damages, whether warranty,
property damage, personal injury or death
arising out of the use of unauthorized
replacement parts. To locate your nearest
Ariens Dealer, go to www.ariens.com on the
internet.
DELIVERY
Customer Note: If you have purchased this
product without complete assembly and
instruction by your retailer, it is your
responsibility to:
• Read and understand all assembly
instructions in this manual. If you do not
understand or have difficulty following the
instructions, contact your nearest Ariens
Dealer for assistance. To locate your
nearest Ariens Dealer, go to
www.ariens.com on the internet.
WARNING: Improper assembly or
adjustments can cause serious
injury.
• Do not operate the unit unless all controls
function as described in this manual.
Before attempting to operate your
unit:
1. Make sure all assembly has been
properly completed.
2. Understand all Safety Precautions
provided in the manuals.
3. Review control functions and operation of
the unit.
4. Review recommended lubrications,
maintenance and adjustments.
5. Review Limited Warranty Policy.
6. Fill out Original Purchaser Registration
Card and return the card to Ariens
Company or go to www.ariens.com.
DISCLAIMER
Ariens reserves the right to discontinue,
change, and improve its products at any time
without notice or obligation to the purchaser.
The descriptions and specifications contained
in this manual were in effect at printing.
Equipment described within this manual may
be optional. Some illustrations may not be
applicable to your unit.
SAFETY
SAFETY ALERTS
Look for these symbols to point
out important safety precautions.
They mean:
Attention!
Personal Safety Is Involved!
Become Alert!
Obey The Message!
The safety alert symbols above and signal
words below are used on decals and in this
manual.
Read and understand all safety messages.
GB - 5
DANGER: IMMINENTLY
HAZARDOUS SITUATION! If
not avoided, WILL RESULT in
death or serious injury.
WARNING: POTENTIALLY
HAZARDOUS SITUATION! If not
avoided, COULD RESULT i n death
or serious injury.
CAUTION: POTENTIALLY
OX0115
1
OL1801
OL4740
OL4370
OL0910
OL4620
OL4610
HAZARDOUS SITUATION! If not
avoided, MAY RESULT in minor or
moderate injury. It may also be
used to alert against unsafe
practices.
NOTATIONS
NOTE: General reference information for
proper operation and maintenance practices.
IMPORTANT: Specific procedures or
information required to prevent damage to unit
or attachment.
PRACTICES AND LAWS
Practice usual and customary safe working
precautions, for the benefit of yourself and
others. Understand and follow all safety
messages. Be alert to unsafe conditions and
the possibility of minor, moderate, or serious
injury or death. Learn applicable rules and
laws in your area.
REQUIRED OPERATOR TRAINING
If unit is to be used by someone other than
original purchaser; loaned, rented or sold,
ALW AYS provide this manual and any needed
safety training before operation.
SAFETY DECALS AND
LOCATIONS
ALWAYS replace missing or damaged Safety
Decals. Refer to figure below for Safety Decal
locations.
1. DANGER! TO AVOID SERIOUS
INJURY OR DEATH
Read the Operator’s Manual.
Always wear protective
glasses, goggles or a face
shield.
Always wear adequate
hearing protection.
Do not operate when
children or others are
around.
Remove objects that could
be thrown by the cutter line.
Keep body parts away from
rotating cutter line.
Go across slopes, not up and
down.
• Keep safety devices (guards,
shields, switches, etc.) in place and
working.
• Look down and behind before and
while moving backwards.
• Do not let debris accumulate.
Debris could become a fire hazard
or cause engine to overheat.
SAFETY RULES
If unit is to be used by someone other than
original purchaser; loaned, rented or sold,
ALW AYS provide this manual and any needed
safety training before operation.
Read, understand and follow all safety
practices in Owner/Operator Manual before
beginning assembly. Failure to follow
instructions could result in personal injury and/
or damage to unit.
GB - 6
ALWAYS disconnect wire from spark plug
before assembly. Unintentional engine start up
can cause death or serious injury.
Complete a walk around inspection of unit and
work area to understand:
• work area
• your unit
• all safety decals.
Clear work area of stones, sticks, wire and
foreign objects which might be picked up and
thrown. Tall grass can hide obstacles.
Know the work area. Stay alert for holes,
rocks, rough terrain and hidden hazards.
Keep away from drop-offs, ditches, or
embankments that could cause operator to
lose footing or control of unit.
ALWA YS be aware of traffic when operating
along streets or curbs.
Keep work area clear of all persons, children
and pets.
Keep children out of the work area and under
the watchful care of a responsible adult.
ALWA YS operate unit when there is good
visibility and light.
Do not operate trimmer in wet grass.
ALWAYS be sure of your footing. Keep a firm
hold on handlebar. Walk, NEVER run.
Whenever operator releases control on
handlebar, trimmer head must stop. Check this
feature frequently. If feature fails to operate,
disconnect spark plug wire and adjust or have
it repaired before using unit.
Only trained adults may operate unit. Training
includes actual operation.
NEVER operate after or during the use of
medication, drugs or alcohol. Unit requires
complete and unimpaired attention.
NEVER allow children to operate trimmer.
ALWAYS keep hands and feet away from
rotating parts. Rotating parts can cut off body
parts.
ALWAYS keep hands away from pinch points.
Fumes from engine exhaust can cause death
or serious injury. DO NOT run engine in an
enclosed area.
ALWAYS protect eyes, face, and body with
adequate safety gear and protective clothes.
Wear sturdy footwear, gloves and safety
goggles or safety glasses with side shields
while operating mower.
NEVER operate trimmer barefoot or when
wearing open sandals or canvas shoes.
NEVER wear loose clothes, long hair or
jewelry that may get caught in rotating parts.
Protect eyes, face and head from objects that
may be thrown from unit.
ALWA YS stand clear of discharge when
operating unit.
NEVER direct discharge toward bystanders.
Operator is responsible for bystander safety.
DO NOT touch hot parts. Allow parts to cool.
Keep safety devices or guards in place and
functioning properly. NEVER modify or remove
safety devices.
Read, understand, and follow all instructions in
the manual and on the machine before
starting. Understand:
• How to operate all controls
• The functions of all controls
• How to STOP in an emergency.
DO NOT attempt to start your engine until you
know what the controls do and how they work.
DO NOT tilt trimmer when starting it.
Keep feet away when starting engine.
DO NOT operate trimmer unless trimmer
shield and trailing shield are installed. Objects
may be picked up and thrown causing damage
or personal injury.
NEVER use wire or wire-rope in place of the
cutting line. It can break off and become a
dangerous projectile. Use only flexible, nonmetallic line recommended by Ariens.
ALWAYS keep trimmer head in contact with
the ground while operating.
Take all possible precautions when leaving
unit unattended.
ALW AYS shut off engine and disconnect spark
plug wire to prevent accidental starting or
unauthorized use.
Stop engine if anyone enters the work area.
NEVER attempt to make any adjustments to
unit while engine is running (except where
specifically recommended). Stop engine,
disconnect spark plug wire and wait for all
moving parts to stop before servicing.
DO NOT make cutting height adjustments
while the engine is running.
If you strike an object, or if equipment vibrates
abnormally, stop engine at once, wait for
moving parts to stop and disconnect wire from
spark plug. Repair any damage before
restarting unit.
ALWAYS shut off engine, allow trimmer head
to stop and disconnect spark plug wire before
clearing clogs or cleaning unit.
DO NOT transport machine while engine is
running.
GB - 7
To reduce fire hazard and overheating, keep
equipment free of grass, leaves, debris or
excessive lubricants.
Use extra care when approaching blind
corners, shrubs, trees, or other objects which
may obscure vision.
DO NOT trim at too fast a rate. DO NOT
change engine governor setting or over-speed
the engine.
Do not operate trimmer on gravel or on loose
material such as sand. Stop trimmer when
crossing gravel drives, walks, or roads to
prevent damage or injury from thrown objects.
DO NOT pull trimmer backwards unless
absolutely necessary. Look down and back,
especially for small children, before and while
moving backwards.
DO NOT operate on steep slopes.
NEVER leave unit unattended on a slope.
Chock wheels if parking on a slope.
Trim across the face of slopes, never up and
down. Be especially cautious when changing
direction on slopes.
This product is equipped with an internal
combustion engine. DO NOT use on or near
any unimproved, forest or brush covered land
unless the exhaust system is equipped with a
spark arrestor meeting applicable local, state
or federal laws. A spark arrestor, if used, must
be maintained in effective working order by the
operator. See your Ariens Dealer or engine
manufacturer’s service center.
Emission Control System Ce rtification
Label
NOTE: Tampering with emission controls and
components by unauthorized personnel may
result in severe fines or penalties. Emission
controls and comp one nts can only be adjust ed
by EPA and/or CARB authorized service
centers. Contact your Ariens Equipment
Retailer concerning emission controls and
component questions.
Fuel is highly flammable and its vapors can
explode. ONLY use approved fuel containers.
•NO Smoking!
• NO Sparks!
• NO Flames!
• Allow engine to cool before filling fuel
tank.
Never fill containers inside a vehicle or on a
truck or trailer bed with a plastic liner. Always
place cont aine rs o n the groun d awa y fr om you r
vehicle before filling.
When practical, remove gas-powered
equipment from the truck or trailer and refuel it
on the ground. If this is not p ossibl e, then refuel
such equipment on a trailer with a portable
containe r, rather than from a gasoline
dispenser nozzle.
Keep the nozzle in contact with the rim of the
fuel tank or container opening at all times until
fueling is complete. Do not use a nozzle lockopen device.
Check fuel supply befo re start in g en gi ne .
DO NOT fill gasoline tank indoors, when
engine is running, or while engine is hot.
Allow engine to cool several minutes before
removing fuel cap.
DO NOT overfill. Allow about 1/4" (6 mm) of
tank space for fuel exp ansion.
Replace gasoline tank cap securely and clean
any spilled fuel befo re star t ing en gi ne .
If fuel is spilled on clothing, change clothing
immediately.
NEVER store fuel inside where there is an
open flame, such as a water he ater.
AL WAYS drain fuel outdoo rs away fr om ignit ion
sources.
Avoid Elect ri c Sh ock . DO N OT d isco nn ec t w ir e
from spark plug while engine is running.
Accidental engine start up can cause death or
serious injury. Except where specifically
recommended, ALWAYS stop engine, wait for
moving parts to stop, allow parts to cool and
disconnect spark plug wire before inspecting,
servicing, adjusting or repairing unit.
Keep unit free of grass, leaves, or other debris
build-up.
Keep equipment in good condition.
Maintain or replace safety and instruction
labels, as necessary.
Follow engine manufacturer’s safety
instructions wh en ser vi c in g en gi ne .
Check all hardw are at regular intervals,
especially trimmer head attachment bolts.
Keep all hardware properly tightened.
Before tipping un it , re mo v e fu el .
DO NOT tip the trimmer up or over unless
specifically instructed to do so.
Ensure all wheel blocks, jack stands and tie
downs will support unit during maintenance.
Replace worn-out mufflers immediately.
Continued use could result in fire or explosion.
Sharp edges can cut or amputate fingers or a
hand. Wrap blade or wear stur dy gl ov e s to
service.
Use only replacement parts designed for your
unit. See your Ariens Dealer.
Allow engine to cool before storing in any
enclosure.
ALWAYS clean unit before extended storage.
See engine manual for proper storage.
DO NOT store unit in sid e a bui ld in g wit h f ue l i n
the fuel tank where any ignition sources are
present.
Use only access ories which have been
approved by Ariens and are properly installed.
Check attachments frequently and replace
worn or damaged components with
manufacturer’s recommended parts.
GB - 8
ASSEMBLY
1. Lower Handle
Bar
2. Upper Handle
Bar
3. Carriage Bolt
4. Wing Knobs
5. Bolt Holes
6. Control Bail
OX0014
4
3
1
6
2
5
4
WARNING: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
TOOLS REQUIRED
• Box knife to cut carton
TO REMOVE UNIT FROM CARTON
1. Cut off top of box.
2. Remove packing material.
3. Remove literature pack, safety glasses
and bottle of oil from box.
4. Cut out back of box and pull the unit out.
5. Remove protective packaging materials
from trimming head and around unit.
ASSEMBLY
Handleba r Assembly
1. Loosen handlebar wing knobs. Do not
remove them.
2. Unfold handlebar to operating position.
NOTE: Adjust handlebar to a height
comfortable for the operator. Be sure cable is
clear of pinch points. Refer to Handlebars in
Service and Adjustments.
3. Tighten handlebar wing knobs to secure
upper handlebar.
Engine Crankcase Oil
Fill engine crankcase with proper amount and
viscosity of oil. Refer to Engine Manual for
specific information.
CHECKLIST
Please complete the following checklist before
proceeding:
• All assembly instructions have been
completed.
• No remaining loose parts in carton.
• Handlebar is adjusted comfortably and
tightened securely.
While learning how to use your unit,
pay extra attention to the following
important items:
• Trimming line is fastened securely in
holder.
• Fuel tank is filled with proper fuel.
• Engine crankcase is filled with oil.
• Become familiar with all controls – their
location and function. Operate them
before you start the engine.
GB - 9
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