Mack 946401, ST622 Owner's/operator's Manual

String Trimmer
Owner/Operator Manual
Models
946401 - ST622
Transfer model & serial number label from product registration here.
Coller lautocollant du modèle et du numéro de série dans cet encadré.
Transferir aquí la etiqueta del modelo y número de serie del registro del producto.
ENGLISH
FRANÇAIS ESPAÑOL
04645100C 2/02
Supercedes 04645100, A-B
Printed in USA
CONTROLS AND FEATURES
ENGLISH
1. Trimmer Head
2. Trimmer Line
3. Upper Handlebar
4. Lower Handlebar
5. Control Bail
6. Throttle Control Lever
7. Recoil Starter Handle
8. Handlebar Wing Knob
9. Oil Dipstick and Cap
10. Fuel Tank and Cap
11. Debris Screen
12. Air Cleaner
13. Primer Bulb
14. Swivel Head Lock
15. Trimmer Shield
16. Trailing Shield
FRANÇAIS
1. Tête de coupe
2. Fil de coupe
3. Guidon supérieur
4. Guidon inférieur
5. Barre de commande
6. Manette des gaz
7. Poignée du démarreur à cordon
8. Molette de la poignée
9. Jauge à huile et bouchon
10. Réservoir de carburant et bouchon
11. Crépine anti-débris
12. Filtre à air
13. Poire damorçage
14. Verrou de la tête de pivot
15. Garant de coupe
16. Garant de tractage
ESPAÑOL
1. Cabeza recortadora
2. Hilo de recorte
3. Manillar superior
4. Manillar inferior
5. Asidero de control
6. Palanca de control del acelerador
7. Manilla de arranque de retroceso
8. Perilla de mariposa del manillar
9. Varilla medidora de aceite y tapón
10. Depósito del combustible y tapón
11. Rejilla de residuos
12. Depurador de aire
13. Perilla de cebado
14. Traba de la cabeza basculante
5
6
7
3
8
9
14
16
4
15. Protector del recortador
16. Protector de arrastre
WARNING
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
OX0070
15
11
10
12
13
1
2
OX0201
2
TABLE OF CONTENTS
Controls and Features . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . 3
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 7
Operation . . . . . . . . . . . . . . . . . . . . . . . . 9
Maintenance . . . . . . . . . . . . . . . . . . . . 11
INTRODUCTION
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.
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.
Serial Number Label
Record Engine Model and Serial numbers here.
PRODUCT REGISTRATION
A warranty registration card must be lled out, signed, and returned at time of purchase. This card activates the warranty. Claims meeting requirements during limited warranty period will be honored. Return your registration card to assure warranty service.
OX0070
Service and Adjustments . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . 15
Storage. . . . . . . . . . . . . . . . . . . . . . . . . 16
Service Parts . . . . . . . . . . . . . . . . . . . . 16
Specications . . . . . . . . . . . . . . . . . . . 16
Warranty. . . . . . . . . . . . . . . . . . . . . . . . 17
UNAUTHORIZED REPLACEMENT PARTS
Use only Ariens replacement parts. The replacement of any part on this unit with anything other than an Ariens authorized replacement part may adversely affect the performance, durability, and 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.
DELIVERY
Customer Note:
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 difculty following the instructions, contact your nearest Ariens Dealer for assistance. To locate your nearest Ariens Dealer, go to www.ariens.com on the internet or call 1-800-678-5443.
WARNING:
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.
If you have purchased this
Improper assembly or
GB - 3
© Copyright 2000, 2002
6. Fill out Original Purchaser Registration Card and return the card to Ariens Company.
DISCLAIMER
Ariens reserves the right to discontinue, change, and improve its products at any time without notice or obligation to the purchaser.
SAFETY
The descriptions and specications 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 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.
DANGER:
HAZARDOUS SITUATION! If not avoided, WILL RESULT in death or serious injury.
WARNING:
HAZARDOUS SITUATION! If not avoided, COULD RESULT in death or serious injury.
IMMINENTLY
POTENTIALLY
PRACTICES AND LAWS
Practice usual and customary safe working precautions, for the benet 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, ALWAYS provide this manual and any needed safety training before operation.
CAUTION:
HAZARDOUS SITUATION! If not avoided, MAY RESULT in minor or moderate injury. It may also be used to alert against unsafe practices.
POTENTIALLY
NOTATIONS
NOTE:
proper operation and maintenance practices.
IMPORTANT:
information required to prevent damage to unit or attachment.
General reference information for
Specic procedures or
GB - 4
SAFETY DECALS AND LOCATIONS
ALWAYS replace missing or damaged Safety Decals. Refer to gure below for Safety Decal locations.
DANGER / PELIGRO
Remove objects that could be thrown by the cutter line.
OL0910
Keep body parts away from rotating cutter line.
TO AVOID SERIOUS INJURY OR DEATH
Read the Operators Manual.
Always wear protective glasses or
goggles.
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.
Cutter Line Length: 18 inches (46 cm). Longueur de l'unité de coupe : 46 cm (18 in.). Longitud de la línea de corte: 46 cm (18 in.).
POUR ÉVITER DES BLESSURES GRAVES, VOIRE MORTELLES
Lire le manuel d'entretien.
Toujours porter des lunettes de protection ou de sécurité.
Toujours porter des protège-oreilles appropriés.
Ne pas utiliser en présence denfants ou d'autres
personnes.
Retirer les objets pouvant être projetés par l'unité de coupe.
Se tenir à l’écart de l'unité de coupe rotative.
Se déplacer travers d'une pente et non pas de
haut en bas.
Maintenir les dispositifs de sécurité (garants, protections, boutons de commandes, etc.) en place et en bon état de fonctionnement.
Regarder en bas et en arrière, avant et pendant toute manœuvre de recul.
Ne pas laisser les débris s'entasser car ils peuvent provoquer un incendie ou la surchauffe du moteur.
PARA EVITAR LESIONES SERIAS O LA MUERTE
Leer el Manual del operador.
Siempre llevar gafas protectoras o de seguridad.
Llevar siempre protección para los oídos adecuada.
No poner en funcionamiento alrededor de niños o
personas ajenas.
Quitar objetos que puedan ser lanzados por la línea de corte.
Mantener las partes del cuerpo alejadas de la línea de corte giratoria.
Conducir transversalmente sobre pendientes, no hacia arriba y abajo.
Mantener los dispositivos de seguridad (guardas, protectores, interruptores, etc.) en su lugar y en buen estado de funcionamiento.
Mirar hacia abajo y detrás antes y durante el retroceso.
No permitir la acumulación de residuos. Los residuos
pueden convertirse en un peligro de incendio o causar el recalentamiento del motor.
1. DANGER! TO AVOID SERIOUS INJURY OR DEATH
05230800
1
OX0113
OL4620
Go across slopes, not up and down.
OL4610
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 re hazard or cause engine to overheat.
ASSEMBLY SAFETY RULES
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.
ALWAYS remove key and/or wire from spark plug before assembly. Unintentional engine start up can cause death or serious injury.
OPERATIONAL SAFETY RULES
Read the Operators Manual.
OL1801
Always wear protective glasses, goggles or a face shield.
Always wear adequate
OL4740
hearing protection.
Do not operate when children or others are around.
OL4370
Safety Interlock System
Whenever operator releases control on handlebar, trimmer head must stop. If feature fails to operate, disconnect spark plug wire and adjust or have it repaired before using unit.
Unit and Work Area Inspection
Inspect unit and work area before operation. Clear work area of objects which might be
picked up and thrown. Remove all stones, sticks, wires and other foreign objects. Tall grass can hide obstacles.
Keep equipment in good condition.
Personal
Only Trained Adults may operate unit. Training includes actual operation.
GB - 5
Wear adequate safety gear, long sleeve shirts, long pants and protective gloves.
Wear sturdy footwear. DO NOT operate trimmer when barefoot or when wearing open sandals or canvas shoes.
Always wear eye protection and appropriate hearing protection when operating trimmer.
NEVER wear loose clothing, jewelry or long hair that may get caught in rotating parts. Protect eyes, face and head from objects that may be thrown from unit.
Keep children out of work area and under the watchful care of an adult.
NEVER allow children to operate trimmer. Turn the trimmer off if children enter the area. NEVER direct discharge toward bystanders.
The operator is responsible for the safety of bystanders.
NEVER operate after or during the use of medication, drugs or alcohol. Complete and unimpaired attention is required when operating unit.
ALWAYS stand clear of discharge when operating unit.
Do not operate trimmer on gravel or on loose material such as sand. Stop trimmer when crossing gravel drives, walks, or roads. Objects may be picked up and thrown, causing damage or injury.
DO NOT touch parts which are hot. Allow parts to cool.
Moving parts can cut or amputate ngers or a hand.
Fumes from the engine exhaust can cause death or serious injury. DO NOT run engine in an enclosed area.
Operation
ACCIDENTAL ENGINE START UP or UNAUTHORIZED USE could result in death or serious injury.
Take all possible precautions when leaving unit unattended. Shut off engine. Remove wire from spark plug and secure it away from spark plug.
NEVER use wire or wire-rope in place of the cutting line. It can break off and become a dangerous projectile. Use only exible, non­metallic line recommended by Ariens.
DO NOT pull trimmer backwards unless absolutely necessary. Look down and back before and while moving backwards. Keep a rm footing.
ALWAYS keep trimmer head in contact with the ground while operating.
Keep the area of operation clear of all persons, children and pets.
Stop trimmer if anyone enters the area. Keep safety devices or guards in place and
functioning properly. NEVER modify or remove safety devices. ALWAYS keep trimmer shield in place. Keep equipment in good condition.
ALWAYS keep hands and feet away from all rotating parts during operation.
DO NOT trim at too fast a rate. DO NOT change engine governor setting or over-speed the engine.
ALWAYS operate unit when there is good visibility and light.
Use extra care when approaching blind corners, shrubs, trees, or other objects which may obscure vision.
Do not operate trimmer in wet grass. Always be sure of your footing. Keep a rm hold on handlebar. Walk, never run.
If equipment vibrates abnormally, stop engine immediately, wait for moving parts to stop and remove wire from spark plug. Repair any damage before restarting unit.
Avoid uneven work areas and any rough terrain.
Be familiar with area of operation. Stay alert for holes, rocks, roots, and hidden hazards in area of operation. Keep away from drop-offs, ditches or embankments. Operator could lose footing or balance.
DO NOT operate trimmer unless trimmer shield and trailing shield are installed. Objects may be picked up and thrown causing damage or personal injury.
DO NOT make cutting height adjustments while the engine is running.
Hazardous Slopes
DO NOT operate on steep slopes. If you feel uncomfortable on a slope, do not trim it.
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.
Spark Arrestor
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.
GB - 6
FUEL SAFETY RULES
Fuel is highly ammable and its vapors can explode. ONLY use approved fuel containers.
NO Smoking!
NO Sparks!
NO Flames!
Allow engine to cool before lling fuel
tank.
Check fuel supply before starting engine. DO NOT ll gasoline tank indoors, when
engine is running, or while engine is still hot. Allow engine to cool several minutes before
removing fuel cap. Replace gasoline tank cap securely and clean
up any spilled fuel before starting engine. Never ll containers inside a vehicle or on a
truck or trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before lling.
When practical, remove gas-powered equipment from the truck or trailer and refuel it on the ground. If this is not possible, then refuel such equipment on a trailer with a portable container, 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.
If fuel is spilled on clothing, change clothing immediately.
MAINTENANCE AND SERVICE
Stop engine, wait for moving parts to stop, remove ignition wire and secure away from spark plug before attempting to: repair, adjust, inspect or clean unit.
Follow engine manufacturers safety instructions when servicing engine.
Keep all nuts, bolts, and screws tight and be sure equipment is in safe working condition. Check all hardware at regular intervals, especially engine and trimmer head attachment bolts.
Worn out mufers are more than just a noise nuisance and should be replaced immediately. Continued use could result in re or explosion.
Check components for wear, damage, and/or deterioration. Replace only with Ariens original equipment replacement parts.
DO NOT tip the trimmer up or over unless specically instructed to do so.
To reduce re hazard and overheating, keep equipment free of grass, leaves, debris or excessive lubricants.
Maintain or replace safety and instruction labels, as necessary.
Replacement Parts and Accessories
Use only replacement parts and accessories which have been approved by Ariens and are properly installed.
STORAGE SAFETY RULES
Allow engine to cool before storing in any enclosure.
Refer to unit is to be stored for extended periods.
ALWAYS clean unit before extended storage. See engine manual for proper storage.
DO NOT store unit with fuel in the fuel tank inside a building where any ignition sources are present.
Storage
for important instructions if
WARNING:
and understand
Fuel Safety Rules
proceeding.
AVOID INJURY. Read
Assembly
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.
ASSEMBLY
5. Remove protective packaging materials from trimming head and around unit.
and
before
GB - 7
ASSEMBLY
6
2
3
5
1. Lower Handle Bar
2. Upper Handle Bar
3. Carriage Bolt
Engine Crankcase Oil
Fill engine crankcase with proper amount and viscosity of oil. Refer to Engine Manual for specic information.
CHECKLIST
Please complete the following checklist before proceeding:
1
4
OX0012
4. Wing Knobs
5. Bolt Holes
6. Control Bail
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 lled with proper fuel.
Engine crankcase is lled with oil.
Become familiar with all controls their
location and function. Operate them before you start the engine.
Handlebar Assembly
1. Loosen handlebar wing knobs. Do not remove them.
2. Unfold handlebar to operating position.
NOTE:
comfortable for the operator. Be sure cable is clear of pinch points. Refer to
Service and Adjustments.
Adjust handlebar to a height
Handlebars
3. Tighten handlebar wing knobs to secure upper handlebar.
in
GB - 8
OPERATION
CONTROLS AND FEATURES
See Controls and Features on page 3.
WARNING:
and understand
Fuel Safety Rules
proceeding.
Trimmer Head / Trimmer Lines
The trimmer head holds the trimmer line and provides trimming height adjustment. When mounted in the trimmer, the trimmer lines extend about 8 inches (20.3 cm) from the cutter disk.
Control Bail
Squeeze the trimmer control bail against the handlebar to engage trimmer head.
Release bail to disengage trimmer.
IMPORTANT:
before each use. If control bail moves freely with no resistance before contacting handlebar, adjust or repair unit before operating. See
Check control bail function
Service and Adjustments.
Throttle Control Lever
Fast Slow Stop
Recoil Starter Handle
The recoil starter handle is used to start the engine.
Primer Bulb
3 x
OX0040
Swivel Head Lock
The swivel head feature is designed to allow close trimming while walking parallel to fences or walls.
Point the front of the unit to the left if trimming with the left side of the trimmer.
Point the front of the unit to the right if trimming with the right side of the trimmer. To adjust, see
AVOID INJURY. Read
Operational
before
The throttle control lever controls the speed of the engine.
OX0210
The settings are variable between fast and slow.
For a cold engine, push the primer bulb three times to
add fuel for easier engine start. See
Shut Off
Service and Adjustments
Starting and
.
and
.
FILLING FUEL TANK
WARNING: EXPLOSIVE VAPORS
and
FLAMMABLE FUEL
result in serious injury or death. Handle fuel with care. ALWAYS use an approved fuel container.
No Smoking! No Lighted Materials! No Open Flame! Allow engine to cool before
maintenance. Never ll tank when engine is
running or is hot from operation. DO NOT overll tank. Allow about 1/4" (6.35 mm ) of space at the top of the ller neck for fuel expansion. Wipe up any spills and allow vapors to dissipate before starting engine. Use approved (Red) gasoline container.
To add fuel to Fuel Tank:
1. Put unit in open or well-ventilated area.
2. Stop engine and allow to cool.
3. Clean Fuel Cap and surrounding area to prevent dust, dirt and debris from entering Fuel Tank.
4. Remove Cap.
IMPORTANT:
gasoline containing alcohol because alcohol will cause internal parts to deteriorate. See Engine Manual for correct type and grade of fuel.
5. Fill fuel tank. (See capacity.)
6. Replace Fuel Cap and tighten.
7. ALWAYS clean up any spilled fuel.
DO NOT use gasohol or
Specifications
can
for tank
TO STOP IN AN EMERGENCY
To stop in an emergency, release control bail. When all moving parts have stopped, push throttle control lever to stop.
TO START AND SHUT OFF ENGINE
Pre-Start
1. Check engine oil level. See Engine Manual.
2. Check fuel level.
Starting the Engine
1. Push primer bulb 2 or 3 times for a cold engine.
2. Set throttle control to Fast.
GB - 9
3. Grasp starter handle and pull rope out slowly until it pulls harder. This is the compression stroke. Let rope rewind slowly. Then pull rope with rapid continuous full arm stroke to start engine. Allow rope to rewind slowly.
IMPORTANT:
against handlebar.
4. Repeat until engine starts. (If engine does not start, refer to
DO NOT let starter handle snap
Troubleshooting
.)
Stopping the Engine
1. Release control bail so that trimmer head stops rotation. Wait until rotating parts stop completely before leaving operator’s position.
2. Push throttle control lever to Stop.
3. If leaving unit unattended, disconnect spark plug wire to prevent accidental start-up.
TO OPERATE THE TRIMMER
CAUTION:
grass and debris from foam debris screen and around mufer.
1. Start the engine.
2. Set throttle control to Fast.
3. Hold the control bail against the handlebar to engage the trimmer head.
4. When trimmer head is rotating at full speed, move unit forward to trim.
Before every use, clean
TO TRAVEL TO ANOTHER WORK AREA
When crossing driveways or bare areas, release the control bail to stop trimmer head rotation and push down slightly on the handlebar to lift the trimmer head off the ground. This prevents premature wear of the trimmer head.
TRIMMING TIPS
Operating the trimmer in Fast throttle provides the best trimming performance.
In heavy growth, walk slower.
Do not push the trimmer into heavy
growth too fast.
Do not trim on extremely steep slopes. Do not trim on slopes when the ground is wet or slippery. If you do not feel comfortable on a slope, do not trim it.
Keep the trimmer clear of dirt and grass build-up.
Install a new trimmer line when line is worn to less than 4 inches (10.2 cm). See
Service and Adjustments
.
TO TRANSPORT UNIT
ALWAYS turn engine off when transporting on truck or trailer. Tie unit down securely. Do not tie down by linkages, guards, cables or other parts that may be damaged.
GB - 10
MAINTENANCE
WARNING: AVOID INJURY. Read
and understand Fuel and Maintenance and Service Safety Rules before proceeding.
MAINTENANCE SCHEDULE
Service Performed Intervals (Hours)
Each
Use Check Fasteners Check Trimmer Lines Check Control Bail
Operation Check Engine Oil Clean Debris Screen Clean Unit Check Air Cleaner 1 Check Spark Plug Change Engine Oil 2 1 Clean Engine Cooling Fins •1
1. More often under extremely dusty or dirty conditions.
2. Change engine oil after rst 2 hours of use, then every 25 hours or every season, whichever comes rst.
SERVICE POSITION
1. Remove the gas cap and place a piece of
plastic (a plastic garbage bag works well) over the tank opening. Reinstall the cap. This keeps gasoline from spilling out the tank.
2. Set the unit swivel in the center position.
3. Loosen the two wing nuts on the lower
handlebar.
4. Tip the unit up onto its back to rest on the
lower handlebar. A 4" x 4" (10.2 x 10.2 cm) wood block under the swivel bracket helps steady the unit by tilting it farther back.
5. When service is complete, place unit in its
normal operating position.
6. Align handlebars and tighten wing nuts.
7. Be sure to remove the plastic from the gas
tank opening.
25 50
Wood Block
OX0231
CHECK FASTENERS
Make sure all hardware is tightened properly. Pay special attention to handlebar, guards, shields, and trimmer head mounting hardware.
CHECK TRIMMER LINES
Make sure trimmer line is securely fastened in holder. Replace trimmer line when it is worn to less than 4 inches (10.2 cm) . See
Adjustments
for specic instructions.
Service and
CHECK CONTROL BAIL OPERATION
The trimmer head must disengage completely when the bail handle is released. Adjust bail travel if necessary. See
Adjustments
.
CHECK ENGINE OIL
See Engine Manual for specic information on checking engine oil.
CLEAN DEBRIS SCREEN
Remove all grass and debris from debris screen on top of engine. A clogged screen will cause the engine to overheat.
CLEAN UNIT
Clean unit thoroughly. Brush dirt and debris off with a brush or cloth. Apply paint or spray lubricant to exposed metal surfaces.Do not use abrasives, solvents, or harsh cleaners.
IMPORTANT:
store unit outdoors. Store trimmer in a cool, dry, protected location.
NEVER spray unit with water or
CHECK AIR CLEANER
See Engine Manual for specic information on checking and servicing the air cleaner.
CHECK SPARK PLUG
See Engine Manual for specic information on checking, cleaning, and changing the spark plug.
GB - 11
CHANGE ENGINE OIL
Change the engine oil after the rst 2 hours of use, then every 25 hours or every season, whichever comes rst. Oil should be changed when engine is warm.
1. Disconnect spark plug wire.
2. Clean area around oil cap.
3. Tip the string trimmer on its right side.
CAUTION: Before tipping unit, remove enough fuel so no spillage will occur. A piece of plastic bag may be used to seal fuel tank when tipping unit. To seal, remove fuel tank cap, cover fuel tank opening with plastic, replace and tighten cap securely before attempting to tip unit. Be sure to remove plastic before operating unit.
SERVICE AND ADJUSTMENTS
WARNING: AVOID INJURY. Read
and understand Fuel and Maintenance and Service Safety Rules before proceeding.
REPLACING TRIMMER LINE
Replace the trimmer line when it extends less than 4 inches (10.2 cm) from cutter disk. For best results, use only genuine Ariens replacement trimmer line.
1. Stop the engine and wait for all moving
parts to stop. Disconnect the spark plug wire and place it securely away from the spark plug.
2. Remove the worn trimmer line from the
cutter disk.
3. Thread the two ends of the trimmer line
up from the bottom, through the two holes in the cutter disk.
4. Cross the line and thread the ends of the
line through the two holes on the side of the cutter disk.
OX0063
5. Make sure the ends of the line extend
through the cutter disk at the same length. Uneven trimmer lines cause the trimmer head to be out of balance, which results in excessive vibration.
4. Place a container for the oil under the oil cap.
5. Remove oil cap and let the oil drain. Tip the unit more to drain all the oil from the engine if necessary.
6. Place the unit upright.
7. Rell the engine with oil recommended in the Engine Manual.
8. Replace and tighten oil cap.
9. Clean up any spilled oil.
10.Reconnect the spark plug wire.
CLEAN ENGINE COOLING FINS
Remove grass, dirt and debris from engine cooling ns every 25 hours to prevent damage caused by overheating.
6. Pull trimmer line tight.
7. If necessary, cut the ends of the trimmer line to the same length.
HANDLEBAR HEIGHT ADJUSTMENT
1. Loosen and remove both wing knobs from handlebar.
2. Remove carriage bolts, taking care to support handlebar.
3. Set handlebar to desired height.
4. Line up holes in upper handlebar with holes in lower handlebar. Be sure to use the same holes on each side.
5. Reinstall carriage bolts and wing knobs. Tighten securely.
OX0080
CUTTING HEIGHT ADJUSTMENT
The standard cutting height is adjustable from 1-3/16" to 4-3/8" (3 to 11.1 cm). To raise the cutting height, place more spacers (up to 4) below the cutter disk. Spacers not used under the cutter disk must be assembled above the cutter disk. For example, if you place two spacers under the cutter disk, the other two spacers must be in place above the cutter disk.
NOTE: There must always be at least one spacer between the cutter disk and the height guide.
GB - 12
1
2
3
1. Hex Shaft
2. Spacers
3. Cutter Disk
4. Height Guide
5. Washer
6. Lock Washer
7. Cap Screw
4
5
6
7
OX0090
2
1 spacer = 1-3/16"
(3 cm)
2 spacers = 2-3/4"
(7 cm)
3 spacers = 3-5/8"
(9.2 cm)
4 spacers = 4-3/8"
(11.1 cm)
1. Raise the cutter head off the ground.
2. Loosen and remove capscrew, lock washer and washer.
3. Remove height guide and bottom spacer.
4. Remove cutter disk and any of the remaining spacers required to achieve the desired cutting height.
5. Reinstall the cutter disk.
6. Reinstall the spacers required to achieve the desired cutting height.
7. Reinstall height guide on the hex shaft.
NOTE: Be sure the hex shaft and the hex hole in the height guide are correctly aligned.
8. Reinstall washer, lock washer and capscrew. Tighten securely.
NOTE: The minimum cutting height may be lowered to 1-3/16" (3 cm) by using one spacer below the cutter disk and installing the cutter disk upside down on the hex shaft.
HEIGHT GUIDE REPLACEMENT
The height guide requires periodic replacement. When used on hard surfaces, such as concrete, it may need to be replaced more frequently. If height guide is damaged or worn, it must be replaced.
1. Raise the cutter head off the ground.
2. Loosen and remove capscrew, lock washer and washer.
3. Remove worn height guide.
4. Install new height guide.
5. Reinstall hardware and tighten securely.
Wing Knob
OX0070
3. Rotate the back of the unit in the opposite direction of the side you wish to cut with.
4. Tighten wing knob securely.
CONTROL BAIL TRAVEL ADJUSTMENT
Control Bail must disengage trimmer head as control is released. There should be a slight amount of slack in the control cable wire when bail is fully released. If the trimmer head does not disengage completely when the control bail is released, increase the amount of slack in the control cable wire as follows:
1. Loosen the bottom cable nut.
2. Push the cable conduit upward toward the control bail.
3. Tighten the upper cable nut onto the mounting bracket to lock the conduit in place.
4. Turn nuts against mount to lock in position.
3
5
1. Control Cable
2. Control Cable Wire
3. Control Bail
4. Handlebar
5. Cable Nuts
6. Cable Conduit
4
2
6
1
OX0120
SWIVEL HEAD ADJUSTMENT
1. Stop the engine and wait for all moving parts to stop. Disconnect the spark plug wire and place it securely away from the spark plug.
2. Loosen the wing knob on the bracket at the rear of the unit.
GB - 13
DRIVE BELT REPLACEMENT
13
1
8
12 11
5
2
1. Six hex washer head screws
2. Trimmer shield
3. Four hex washer head screws
4. Trimmer frame
5. Jackshaft assembly
6. Jackshaft spacers
7. Jackshaft pulley belt ngers
10
6
7
9
4
1
1
8. V-belt
9. Jackshaft pulley
10.Engine sheave
11.Capscrew
12.Lock washer
13.Engine sheave belt ngers
3
OX0020
7
6
5
4
1. Engine sheave belt ngers
2. Engine sheave
3. Idler
4. Idler belt nger
6. Jackshaft pulley belt ngers
7. Jackshaft pulley
3
OX0100
5. V-belt
To remove the old belt:
1. Stop the engine and wait for all moving parts to stop. Disconnect the spark plug wire and place it securely away from the spark plug.
2. Place unit in service position (see Maintenance section).
CAUTION: Before tipping unit, remove enough fuel so no spillage will occur. A piece of plastic bag may be used to seal fuel tank when tipping unit. To seal, remove fuel tank cap, cover fuel tank opening with plastic, replace and tighten cap securely before attempting to tip unit. Be sure to remove plastic before operating unit.
2
1
3. Remove the six (6) hex washer head screws and the trimmer shield.
4. Remove the four (4) hex washer head screws on the top side of the frame. The jackshaft assembly, belt ngers and jackshaft spacers will now be loose.
GB - 14
5. Remove the v-belt from the jackshaft pulley.
6. Remove the capscrew and lock washer from the engine sheave.
7. Lower the engine sheave past the belt ngers and remove the belt.
To install the new belt:
1. Slide the new belt over the groove in the engine sheave and slide the sheave against the engine. Make sure the belt is in the groove and is inside the belt fingers.
2. Install the capscrew and lock washer. Tighten securely.
3. Slide the belt between the idler and belt nger on the idler bracket.
4. Install the four tapping screws in the holes in the frame, from the top side of the frame.
5. Install the four jackshaft spacers on the tapping screws.
6. Install the belt nger. Make sure the bent tabs are facing up and are to the sides and front of the unit.
7. Install the belt in the groove of the jackshaft pulley.
8. Attach the jackshaft assembly to the frame with the four tapping screws. Fasten securely.
9. Reinstall the trimmer shield with the six tapping screws.
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTION
Engine will not start or runs poorly
Engine overheats
Poor trimming performance
1. Spark plug wire disconnected.
2. Engine not primed
3. Fuel tank empty.
4. Throttle control lever not in correct position.
5. Engine is ooded.
6. Defective or incorrectly gapped spark plug.
7. Stale or contaminated gasoline.
8. Engine cooling system overloaded with debris.
9. Dirty carburetor or fuel line.
10.Dirty air lter or precleaner.
11.Carburetor out of adjustment.
1. Engine cooling system overloaded with debris.
2. Carburetor out of adjustment.
1. Engine not set at Fast speed. 1. Set engine throttle to Fast
1. Connect spark plug wire.
2. Prime engine.
3. Add fuel to the fuel tank.
4. See Engine Manual.
5. Wait several minutes before attempting to start.
6. Replace or regap spark plug.
7. Drain fuel tank and rell with fresh gasoline.
8. Clean debris screen and cooling ns.
9. Clean carburetor or fuel line. See Engine Manual.
10.Replace air lter or precleaner.
11.See Engine Manual or contact your dealer.
1. Clean engine screen and cooling ns.
2. See Engine Manual or contact your dealer.
position.
Trimmer vibrates
1. Cutter line lengths are too uneven.
2. Loose hardware.
1. Trim or adjust cutter line to equal lengths. Replace if necessary.
2. Check all bolts and nuts, including engine mounting hardware, for tightness.
GB - 15
STORAGE
SPECIFICATIONS
Model Number 946401
WARNING: AVOID INJURY. Read and understand Fuel and Storage Safety Rules before proceeding.
If the trimmer is to be stored for more than 30 days, follow these steps to prepare your unit.
1. Run the engine until it stops from running out of gasoline. See Engine Manual for specic instructions on preparing the engine for storage.
2. Clean all dirt and debris from the trimmer. Refer to Maintenance for cleaning instructions.
3. Inspect unit for signs of wear, breakage or damage. Order any parts required and make necessary repairs to avoid delays when beginning use again.
4. Keep all nuts, bolts and screws properly tightened and know unit is in safe working condition.
SERVICE PARTS
Be sure to always use genuine Ariens parts to keep your String Trimmer running like new.
Part no. Qty Description 07236900 1 Drive Belt 04641800 1 Trimmer Line (Pkg of 6) 04641100 1 Height Guide 04645000 1 Long Life Height Guide
Description ST622
Engine Power - HP (KW)
Engine Operating Fast Idle Speed ­RPM
Engine Displacement
- cu. in. (cc)
Fuel See Engine Manual
Fuel Tank Capacity ­qt (Liters)
Cutting Width - in (cm)
Handlebars Max. Extended Height - in (cm)
Minimum Folded Height - in (cm)
Length - in (cm) 57.88 (147.02)
Minimum Folded Length - in (cm)
Width - in (cm) 22 (55.88)
Weight - lbs (Kg) 83 (37.65)
Cutter Head Speed ­RPM
6 (4.48)
3600
12.06 (197.6)
for type and grade
1.25 (1.18)
22 (55.88)
41.38 (105.11)
19.38 (49,23)
37.25 (94.62)
3600
GB - 16
Drive Belt 4L Section, Single
V Construction,
Raw Edge Kevlar
Cord
Wheel Size - in (cm) 14 (35.56)
Replacement Line Length - in. (cm)
18 (46)
2 Year Limited Warranty
Ariens Company warrants to the original purchaser that consumer products manufactured by Ariens Company will be free from defects in material and workmanship for a period of two (2) years after the date of purchase, and will repair any defect in material or
Ariens Company
655 West Ryan Street P.O. Box 157 Brillion, WI 54110-0157 1-866-622-5633 Fax 920-756-2407 www.ariens.com
This warranty is subject to the following conditions, limitations, and exclusions: This warranty is valid only if the following conditions are
met:
The warranty registration card must be completed and returned to Ariens Company.
The purchaser must perform maintenance and minor adjustments explained in the owner’s manual.
The purchaser must promptly notify Ariens Company or an authorized Ariens service representative of the need for warranty service.
This warranty is subject to the following limitations:
The purchaser must transport the product to and from the place of warranty service.
Warranty service must be performed by an authorized Ariens service representative. (To find an authorized Ariens service representative, contact Ariens Company at the number or address above.)
Batteries are warranted only for a period of twelve (12) months after date of purchase, on a prorated basis. For the first ninety (90) days of the warranty period, a defective battery will be replaced free of charge. If the applicable warranty period is more than 90 days, Ariens Company will cover the prorated cost of any defective battery, for up to twelve(12) months after the date of purchase.
workmanship, and repair or replace any defective part, subject to the conditions, limitations and exclusions set forth herein.
The two year duration of this warranty applies only if the product is put to ordinary, reasonable, and usual personal, family, or household uses. If the product is put to any business, commercial, or industrial use such as, but not limited to, commercial landscaping, mowing or snow removal services, or golf course or park maintenance, or agricultural or farmstead use, then the duration of this warranty is ninety (90) days after the date of purchase, or one (1) year after the date of purchase if the product is labeled as a Professional/Commercial Product. If any product is rented or leased, then the duration of this warranty is ninety (90) days after the date of purchase.
The following items are not covered by this warranty:
Engines and engine accessories are covered only by the warranty made by the engine manufacturer, and are not covered by this warranty.
If the product is equipped with a Peerless gearbox and/or transmission, the gearbox and/or transmission are covered only by the warranty made by Peerless, and are not covered by this warranty.
Parts that are not genuine Ariens service parts are not covered by this warranty.
Shoes, runners, scraper blades, shear bolts, string trimmer height guide, mower blades, mower vanes, trimmer line, headlights, light bulbs, are not covered by this warranty.
Any defect which is the result of misuse, alteration, improper assembly, improper adjustment, neglect, or accident, is not covered by this warranty.
Products which were not purchased in the United States, Puerto Rico, or Canada are not covered by this warranty. In all other countries, contact place of purchase.
LIMITATION OF REMEDY AND DAMAGES
Ariens Companys liability under this warranty, and under any implied warranty that may exist, is limited to repair of any defect in workmanship, and repair or replacement of any defective part. Ariens Company shall not be liable for incidental, special, or consequential damages (including lost profits). Some states do not allow the exclusion of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
DISCLAIMER OF FURTHER WARRANTY
Ariens Company makes no warranty, express or implied, other than what is expressly made in this warranty. If the law of your state provides that an implied warranty of merchantability, or an implied warranty of fitness for particular purpose, or any other implied warranty, applies to Ariens Company, then any such implied warranty is limited to the duration of this warranty. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
Form: MLW2-121300
GB - 17
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