Powersmart SF7A202 User manual

INSTRUCTION MANUAL
Electric String Trimmer (Item#PS8208)
Model # SF7A202
Have product questions or need technical support? Please feel free to contact us!
Website: www.Amerisuninc.com
Toll free: 1-800-791-9458 M-F 9-5 EST
Email: [email protected]

2

3
CONTENTS
Technical data…...………………………………………………………... 3
General safety rules…….………………………………………………... 4
Electrical information……………………………………………………. 6
Symbols………………………………………………………………….. 7
Knowing your string trimmer……. ..…………………………………… 9
Assembly instruction……………………………………………………… 10
Operating instruction…………………………………………………...... 11
Maintenance.……………………………………………………………… 14
Troubleshooting…………………………………………………………. 15
Exploded view & parts list……………………………………………… 16
Warranty………………………………………………………………… 18
TECHNICAL DATA
Electric string trimmer Item # PS8208
Motor: 120V AC, 60Hz, 2.3A
Cutting width: 9"
Line diameter: 0.065"
Spool type: bump feed
No load speed: 11000 RPM
Package dimensions (L x W x H): 20 x5.5 x8 inches
Weight: 4.1 lb.
Warning! We strongly recommend that this item not be modified and/or used for any application
other than that for which it was designed. If you have any questions relative to its application, do not
use the equipment until you have consulted us and we have advised you.
Contact PowerSmart at [phone] M-F 9am-5pm EST
Thank you for purchasing PowerSmart products. Please register online at
www. Amerisuninc.com.
The information will allow us to track your warranty and update on your unit.
Important: Our company does not provide email or personal information to any third party for any
reason. For any questions check our website or call customer service at [phone].

4
GENERAL SAFETY RULES
Safety is a combination of common sense, staying alert, and knowing how your string trimmer works.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING: Do not operate this unit until you read this instruction manual for safety,
operation and maintenance instructions. Failure to follow all instructions listed below may
result in electric shock, fire, and/or serious personal injury.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids,
gases, or dust. Power tools create sparks which may ignite the dust or fumes.
Do not allow children or untrained individuals to use this unit.
Don’t expose power tools to rain or wet conditions. Water entering a power tool will increase the
risk of electric shock.
Do not handle plug or tool with wet hands.
Never allow children to operate the equipment. Never allow adults to operate the equipment without
proper instruction.
Always wear safety glasses with side shields. Everyday glasses have only impact resistant lenses.
They are NOT safety glasses. Following this rule will reduce the risk of eye injury. Use face mask if
operation is dusty.
Wear eye protection when operating this product. Secure long hair above shoulder level to prevent
entanglement in moving parts.
Do not expose to rain, store indoors.
Do not operate in poor lighting.
Keep all parts of your body away from any moving part.
Keep hair, loose clothing, fingers and all body parts away from openings and moving parts.
Wear heavy long pants, boots, and gloves. Avoid loose garments and jewelry that could get caught
in moving parts of the machine or its motor.
Do not force tool. Use the correct tool for your application. The correct tool will do the job better and
safer at the rate for which it is designed.
Do not operate the equipment while barefoot or when wearing sandals or similar lightweight
footwear. Wear protective footwear that will protect your feet and improve your footing on slippery
surfaces.
Secure long hair so it is above shoulder level to prevent entanglement in any moving parts.
Keep firm footing and balance. Do not overreach. Overreaching can result in loss of balance.
Do not allow to be used as a toy. Close attention is necessary when used by or near children.
Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with the switch
is dangerous and must be repaired.
Keep all bystanders, children, and pets at least 50 ft. away.
Do not operate this unit when you are tired, ill, or under the influence of alcohol, drugs, or
medication.

5
Keep all parts of your body away from any moving parts and all hot surfaces of the unit.
Check the work area before each use. Remove all objects such as rocks, broken glass, nails, wire, or
string which can be thrown or become entangled in the machine.
Use only identical manufacturer’s replacement parts and accessories. Use of any other parts may
create a hazard or cause product damage.
For household use only.
Disconnect the appliance from power source before servicing, cleaning or removing material from
the gardening appliance.
Store idle appliances - When not in use, blower should be stored indoors in a dry, locked place out of
the reach of children..
If the power supply cord is damaged, it must be replaced only by the manufacturer or by an
authorized service center to avoid risk.
Do not point the string trimmer in the direction of people or pets.
When not in use, string trimmer should be stored indoors in a dry, locked up place- out of the reach of
children.
Maintain tool with care. Keep the string trimmer clean for best and safest performance. Follow
instructions for proper maintenance. Do not attempt to clear clogs from tool without disconnect
appliance from power supply.
To reduce the risk of electrical shock, do not expose to rain, do not use on wet surfaces. Store
indoors.
Save these instructions. Refer to them frequently and use them to instruct others who may use this
power tool. If you loan someone this power tool, loan them these instructions also.
Dress properly-Use rubber gloves and substantial footwear is recommended when working outdoors.
Avoid accidental start – Do not carry plugged in appliance with finger on trigger. Be sure the switch
trigger is not engaged before plugging in.
Do not hang unit so that the switch trigger is depressed.
Do not use multiple cords.
CHILD SAFETY
Tragic accidents can occur if the operator is not aware of the presence of children.
Keep children out of the working area and under the watchful care of a responsible adult.
Do not allow children under the age of 14 to operate this trimmer. Children who are 14 years of age
and older must read and understand the operating instructions and safety rules in this manual and
must be trained and supervised by a parent.
Stay alert and turn the trimmer off if a child or any other person enters the working area.
Look behind and down for small children before and while cutting backwards.
Use extreme care when approaching blind corners, doorways, shrubs, trees, or other objects that may
obscure your view of a child who may run into the path of the trimmer.
WARNING:
Some dust created by power sanding, sawing, grinding, drilling and other construction activities
contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples

6
of these chemicals are:
•Lead from lead-based paints,
•Crystalline silica from bricks and cement and other masonry products, and
•Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your
exposure to these chemical: work in a well-ventilated area, and work with approved safety equipment, such
as those dust masks that are specially designed to filter out microscopic particles.
SAVE THESE INSTRUCTIONS
ELECTRICAL INFORMATION
Guidelines for using extension cords
Make sure your extension cord is in good condition. When using an extension cord, be sure to use one
heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line
voltage resulting in loss of power and overheating. The table below shows the correct size to be used
according to cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord.
Minimum Gauge for Extension Cords (AWG)
(When using 120 V only)
Ampere Rating
Total Length of Cord in feet
More Than
Not More Than
25
50
100
150
0
6
18
16
16
14
6
10
18
16
14
12
10
12
16
16
14
12
12
16
14
12
Not Recommended
Make sure your extension cord is properly wired and in good condition. Always replace a damaged
extension cord or have it repaired by a qualified person before using it.
Protect your extension cords from sharp objects, excessive heat and damp or wet areas.
Use a separate electrical circuit for your tools. This circuit must not be less than a #12 wire and should be
protected with a 15 A time-delayed fuse. Before connecting the motor to the power line, make sure the
switch is in the OFF position and the electric current is rated the same as the current stamped on the motor
nameplate. Running at a lower voltage will damage the motor.
WARNING: Do not expose to rain or use in damp locations.

7
SYMBOLS
Some of the following symbols may be used on this product. Please study them and learn their
meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.
SYMBOL
NAME
DESIGNATION/EXPLANATION
V
Volts
Voltage
A
Amperes
Current
Hz
Hertz
Frequency (cycles per second)
W
Watts
Power
min
Minutes
Time
Safety Alert
Precautions that involve your safety.
Read the user’s
manual
To reduce the risk of injury, user must read and understand user’s
manual before using this product.
Eye protection
Wear eye protection when operating this equipment.
Wet conditions
alert
Do not expose to rain or use in damp locations.
Long hair
Failure to keep long hair away from moving parts could result in
personal injury.
Loose clothing
Failure to keep loose clothing away from moving parts could result in
personal injury.
Keep Bystanders
away
Keep all bystanders at least 50 ft. away.
Electric shock
alert
Beware of electric shock hazard.

8
The following signal words and meanings are intended to explain the levels of risk associated with this
product.
SYMBOL SIGNAL MEANING
DANGER Indicates an imminently hazardous situation, which, if not avoided,
will result in death or serious injury.
WARNING Indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation, which, if not avoided,
may result in minor or moderate injury.
CAUTION (Without Safety Alert Symbol) Indicates a situation that may
result in property damage.
SERVICE
Servicing requires extreme care and knowledge and should be performed only by a qualified service
technician. For service we suggest you return the product to your nearest AUTHORIZED SERVICE
CENTER for repair. When servicing, use only identical replacement parts.
WARNING: To avoid serious personal injury, do not attempt to use this product until you
have read this Owner's Manual thoroughly and understand it completely. If you do not
understand the warnings and instructions in this Owner's Manual, do not use this product. Call
the Toll-free Helpline (1-800-791-9458) for assistance.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your eyes,
which can result in severe eye damage. Before beginning power tool operation, always wear
safety goggles or safety glasses with side shields and, when needed, a full-face shield. We
recommend Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with
side shields. Always use eye protection which is marked to comply with ANSI Z87.1.

9
KNOWING YOUR STRING TRIMMER
Unpacking
Unpack the string trimmer and all its parts, and compare against the list below. Do not discard the carton
or any packaging materials. Please call 1-800-791-91458 or E-mail us at [email protected] if
any parts are damaged or missing.
Including:
String trimmer Guard
User manual Screw x1 pcs
Fastening bolt for
upper shaft and lower shaft 1 pcs
A
Trigger switch
B
Rear handle
C
E
G
I
Front handle
Upper shaft
Motor housing
Guard
D
F
H
Power cord
Lower shaft
Trimmer head
A
B
C
G
I
H
D
E
F

10
ASSEMBLY INSTRUCTIONS
WARNING:
Do not use this product if any parts on the packing list are already assembled to your product
when you unpack it. Parts on this list are not assembled to the product by the manufacturer
and require customer installation. Use of a product that may have been improperly
assembled could result in serious personal injury.
WARNING:
If any parts are damaged or missing do not operate this product until the parts are replaced.
Use of this product with damaged or missing parts could result in serious personal injury.
WARNING:
Do not attempt to modify this product or create accessories not recommended for use with
this product. Any such alteration or modification is misuse and could result in a hazardous
condition leading to possible serious personal injury.
WARNING:
Do not connect to power supply until assembly is complete. Failure to comply could result in
accidental starting and possible serious personal injury.
INSTALLING THE UPPER SHAFT AND LOWER SHAFT
Align the shaft ends with each other and assemble the
lower shaft (F) into the upper shaft(E) (See fig 1)
Secure the connection with the bolt (See fig 2)
Fig. 1
F E
Fig. 2

11
INSTALLING THE GUARD
Align and place the guard (I) onto the trimmer head (H)
(See fig 3).
Secure the connection with the screw(See fig 4).
WARNING: Never use the product without the guard
proper fitted.
OPERATING INSTRUCTIONS
WARNING: Read and thoroughly understand all instructions and safety information before
operating this string trimmer. Failure to do so may cause serious injury or death. Do not allow
anyone to operate this string trimmer who has not read this manual. a string trimmer can be
dangerous if assembled or used improperly. Do not operate this string trimmer if you have doubts or
questions concerning safe operation. Call our customer service department at 1-800-791-9458 to address
these concerns.
STARTING/STOPPING THE STRING TRIMMER
Attach the outlet end of an extension cord to the plug on the rear of
the string trimmer.
NOTE: Use only approved outdoor extension cords.
Squeeze the on/off switch to switch the product on.
Release the on/off switch to switch the product off.
WARNING:
The tool runs for approximately 4 seconds after it has been switched off. Let the motor come
to a complete standstill before setting the tool down.
Fig. 3
Fig. 3
Fig. 4
Fig. 5
ON/OFF
SWITCH

12
LINE FEEDING
During use, the tip of the trimming line will get shorter due to wear. Regularly check the condition of the
trimming line and adjust if necessary. The trimming spool is equipped with a bumper helping to feed the
trimming line while operating.
NOTE: The line feeding system works only when the product is switched on.
1. Tap the bumper on solid ground and the spool will release
trimming line (See fig 6).
2. Excess line will be cut by the knife and should always remain
inside the radius of the guard.
WARNING: The trimming line will be thrown out!
Danger of injury especially for bystanders!
NOTE: The trimming line will wear faster and require more feeding if cutting is done along
sidewalks or other abrasive surfaces or heavier weeds are being cut.
TRIMMING
WARNING: Disconnect the appliance from power source before performing
adjustments. Make sure that the work area is free of rocks, debris, lines and other
foreign objects.
1. Hold the product firmly with a gap between the product and your right side.
2. Stand upright, do not lean forward and pay attention to posture. Keep both feet apart to help retain your
balance.
3. Hold the cutting head just above the ground at an angle of approximately 30 º(See fig 7).
4. Move the product with a slow regular arc from left to right before moving it back to the starting
position before trimming the next area (See fig 8).
5. Ensure the cutting attachment remains clean and free from off-cuts that may cause it to jam. Check
regularly. Release the on/off switch and disconnect the product from the power supply before
checking.
6. Trim longer grass in stages; do not cut long grass in one cut. For the best results, cut longer grass in
steps.
Fig. 6
Fig. 7
Fig. 8

13
TIPS
1. For best results, do not cut wet grass because it tends to stick to the cutting head and guard,
Prevents proper discharge of grass trimmings and could cause you to slip and fall.
2. Pay special attention when performing the work close to trees and bushes. The cutting head could
Damage sensitive bark, and damage fence posts.
FITTING AND REPLACING LINE SPOOL ASSEMBLY
WARNING:
Disconnect appliance from power supply before performing adjustments. Only fit line
spool recommended by the manufacturer.
The line spool is already fit with the string trimmer when out of package. You need to replace it with
new line when it’s used up.
Replace the trimming spool when it is empty or worn.
Turn the product over to access the trimming line.
Hold the trimmer head steady with one hand. Press the latches on both
side of spool cover by another hand then pull it out of the spool.
Remove the cover together with the trimming spool.
Discard all trimming line on the spool.
Clean the housing before inserting a new spool of the same type.
Lead the trimming line endings through the eyelets of the spool cover.
Press the two latches on the spool cover and refit the cover onto the
housing. Make sure the latches snap into its position to secure the cover.
Ensure the cover is correctly fitted before releasing it. Otherwise, due to
spring action it may be ejected injuries.

14
MAINTENANCE
WARNING:
In order to avoid personal injury and the risk of fire and electric shock, Disconnect appliance
from power supply before adjusting, inspecting, or cleaning the string trimmer.
CLEANING THE SPOOL HEAD
Stop the motor and disconnect appliance from power supply.
Clean dirt and debris from the spool head using a damp cloth with a mild detergent.
NOTE: Wipe off the housing and the plastic components using a moist, soft cloth. Do not use strong
solvents or detergents on the plastic housing or plastic components. Certain household cleaners may
cause damage, and may cause a shock hazard.
GENERAL INSPECTION
1.Regularly check that all the fixing screws are tight. They may vibrate loose over time.
2. If the supply cord is damaged , it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
STORAGE
1. Switch the product off and disconnect it from the power supply.
2. Store the trimmer away from direct sunlight.
3. Do not store in a nylon bag as this can encourage the formation of mold.
4.Store it in a well-ventilated place that is inaccessible to children.
5.Keep away from corrosive agents such as garden chemicals and de-icing salts.
6.At the end of the season, give the trimmer an overall cleaning and a thorough check.

15
TROUBLE SHOOTING
The following form lists the common operating system with problem and solutions. Please read the form
carefully and follow it.
PROBLEMS
POSSIBLE CAUSES
SOLUTION
Product does not start
1. Not connected to power supply.
2. Power cord or plug is defective.
3. Other electrical defect to the
product.
1. Connect to power supply.
2. Check by a specialist electrician.
3. Check by a specialist electrician.
Product does not reach
full power
1. Extension cord not suitable for
Operation with this product.
2. Power source (e.g. generator) has
too low voltage.
1. Use a proper extension cord.
2. Connect to another power source.
Unsatisfactory result
Cutting attachment is worn.
Replace with a new one
Excessive vibration or
noise
1. Cutting attached is dull / damaged
2. Bolts/nuts are loose.
1. Have it replaced with new one
2. Tighten bolts/nuts.

16
EXPLODED VIEW & PARTS LIST

17
Item Stock# Description Qty
1
PS8208-001
Screw ST4x14
22
2
PS8208-002
Right handle
1
3
PS8208-003
Switch spring
1
4
PS8208-004
Switch trigger
1
5
PS8208-005
Power cord
1
6
PS8208-006
Left handle
1
7
PS8208-007
Switch
1
8
PS8208-008
Cord cover
1
9
PS8208-009
Screw ST4x10
4
10
PS8208-010
Press plate
3
11
PS8208-011
Inside wire
1
12
PS8208-012
Bolt M4x30
1
13
PS8208-013
Nut M4
1
14
PS8208-014
Right housing
1
15
PS8208-015
Decorate cover
1
16
PS8208-016
Left housing
1
17
PS8208-017
Rubber block
2
18
PS8208-018
Guard
1
19
PS8208-019
Screw 4x16
1
20
PS8208-020
Blade
1
21
PS8208-021
Blade cover
1
22
PS8208-022
Screw ST3x10
2
23
PS8208-023
Brush holder
2
24
PS8208-024
Carbon brush
2
25
PS8208-025
Front holder
1
26
PS8208-026
Bearing 6072Z
1
27
PS8208-027
Rotor
1
28
PS8208-028
Stator
1
29
PS8208-029
Bearing 6082Z
1
30
PS8208-030
Stator rear holder
1
31
PS8208-031
Flat washer
1
32
PS8208-032
Screw ST4*45
2
33
PS8208-033
Fan
1
34
PS8208-034
Nut M6
1
35
PS8208-035
Rubber gasket
1
36
PS8208-036
Spring
1
37
PS8208-037
Line spool
1
38
PS8208-038
Nylon wire
1
39
PS8208-039
Holder
1
40
PS8208-040
Rivet
2

18
TWO (2) YEARS LIMITED WARRANTY
PowerSmart®is committed to building tools that are dependable for years. Our warranties are consistent with our
commitment and dedication to quality.
TWO (2) YEARS LIMITED WARRANTY OF POWER SMART PRODUCTS FOR HOME USE.
PowerSmart (“Seller") warrants to the original purchaser only, that all PowerSmart consumer power tools will be
free from defects in material or workmanship for a period of two (2) years from date of purchase. Ninety (90) days
for all Power Smart Products, if the tool is used for professional or commercial use.
SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Two (2) Years Limited
Warranty and, to the extent permitted by law, any warranty or condition implied by law, shall be the repair or
replacement of parts, without charge, which are defective in material or workmanship and which have not been
misused, carelessly handled, or misrepaired by persons other than Seller or Authorized Service Center. To make a
claim under this Limited Warranty, you must return the entire power tool product; transportation prepaid, to Power
Smart Include a legible copyof the original receipt, which lists the date of purchase (month and year) and the name
of the company purchased from.
THIS LIMITED WARRANTY DOES NOT APPLY TO ANY ACCESSORY ITEMS INCLUDED WITH THE
TOOL SUCH AS CIRCULAR SAW BLADES OTHER RELATED ITEMS OR TO ANY REPLACEMENT
PARTS LISTED UNDER MAINTENANCE.
ANY IMPLIED WARRANTIES SHALL BE LIMITED IN DURATION TO TWO (2) YEARS FROM DATE OF
PURCHASE. SOME STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY
NOT APPLY TO YOU.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
(INCLUDING BUT NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE
OR USE OF THIS PRODUCT. SOME STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT
ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO
THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH VARY FROM STATE TO STATE IN THE U.S., PROVINCE TO PROVINCE IN
CANADA AND FROM COUNTRY TO COUNTRY.
For questions / comments, technical assistance or repair parts –
Please call toll free at: 1-800-791-9458 (M-F 9am – 5pm EST)
Email: [e-mail]
SAVE YOUR RECEIPTS. THIS WARRANTY IS VOID WITHOUT THEM.