Yard force Y0LTX18TB00 User manual

Model: Y0LTX18TB00
OPERATOR’S MANUAL
Merotec Inc. 3655 Kennesaw North Industrial Parkway,
Kennesaw, GA 30144
Made in China at a SUMEC manufacturing facility.
READ & UNDERSTAND INSTRUCTION MANUAL.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE
REFERENCE.
18" Cordless Line Trimmer
120v
LITHIUM-ION
TM

120v
LITHIUM-ION
TM
2 3
1
2
3
4
5
7
8
TABLE OF CONTENTS
Description of Product Parts ....................................................................................................................6
Intended use………………………………...................................................................................................6
Technical Specications……………........................................................................................………….....6
Safety Information………...................................................................................................………………....6
Assembly …………...........................................................................................…………………………...11
Adjustment ………............................................................................................…………………………….11
Operation……………………………...........................................................................................…………12
Maintenance and Storage ...............................………………..........................................................……14
Troubleshooting ..................................................................................................…………………………15
Warranty ................................................................................................................................................16
WARNING
1. To reduce the risk of electric shock- Do not expose to water.
2. Do not use in rain. Store indoors only. Replace damaged battery pack immediately.
3. Disconnect battery pack before cleaning or servicing. Use proper eye protection. Keep away
from rotating line.
4. Do not operate without guard in place.
5. Use only SUMEC 120V Li-ion battery Y0L120BAT2.5 and SUMEC battery charger
Y0L120CGR.
Fig. 1
Fig. 2

120v
LITHIUM-ION
TM
4 5
12
2
3
1
2
Fig. 3 Fig. 4
Fig. 5
Fig. 11
Fig. 13
Fig. 15
Fig. 7
Fig. 9
Fig. 8
A
B
C
Fig. 10
Fig. 6
Fig. 12
Fig. 14
Fig. 16
6.3 Ft.
6.3 Ft.
Fig. 17
120v
LITHIUM-ION
TM
120VBattery Pack
Max. 113 F
120VBattery Pack Model:YF120BAT2.5
Merotec Inc. 3655 Kennesaw North Industrial
Use and store indoors only.
WARNING
Made in China at a SUMEC manufacturing facility.
Voltage:120 V D.C. Battery Capacity: 2.5 Ah
E331782
GARDENINGAPPLIANCE
Use only for SUMEC 120V charger YF120CGR.
Parkway, Kennesaw, GA30144
120v
LITHIUM-ION
TM
120v
LITHIUM-ION
TM
120v
LITHIUM-ION
TM
120v
LITHIUM-ION
TM
120v
LITHIUM-ION
TM
120v
LITHIUM-ION
TM
Fig. 18

120v
LITHIUM-ION
TM
6 7
DESCRIPTION OF PRODUCT PARTS
Parts list (See Fig. 1)
1. Power head
2. Harness hook
3. Auxiliary handle
4. Shaft connector
5. Safety guard
6. Cutting head
7. Speed adjustment button
8. Power ON/OFF button
Parts included (See Fig. 2)
A. Power head assy x 1
B. Line trimmer attachment shaft x 1
C. Auxiliary handle x 1
D. Manual x 1
E. Shoulder harness x 1
Carefully remove the machine and parts from its
packaging. Identify all the parts
packaged in the carton against the parts list.
Please contact our customer service center
(Monday - Friday 8:30AM - 5:00PM ET) at (866)
902-9690 if anything is missing.
WARNING! If any parts are damaged or
missing, do not operate this tool until the missing
parts are replaced. Failure to heed this warning
could result in serious personal injury.
NOTE! Always recycle the packaging in
accordance with local recycling laws.
WARNING! This item might require two
people to remove from the package. Please be
sure to have another person available to help you
if needed.
TECHNICAL SPECIFICATIONS
Item No. Y0LTX18TB00
Voltage/Capacity 120 V DC / 2.5 Ah Li-ion
Cutting Width 18"
Cutting Line Dia. 0.095"(0.080" Compatible)
Line Feed Dual Line, Tap-Feed
Running Speed 3 Speeds, 4000/5000/
6000 RPM
Motor Brushless
Charger Input: 100~120 V, 50/60 Hz,
Output: 120 V DC, 4 A
Charging Time 40 minutes
Weight 19.6 Lbs
Battery Pack Type Y0L120BAT2.5 (not included)
Adapter Type Y0L120CGR (not included)
INTENDED USE
The product is intended for cutting grass, weeds
or similar soft vegetation in areas that are hard to
reach, e.g. under bushes, on slopes and edges. It
may not be used to work on unusual thick, dry or
wet grass, e.g. pasture grass, or to shred leaves.
For safety reasons it is essential to read the
entire instruction manual before rst operation
and to observe all the instructions therein.
SAFETY SYMBOLS
The purpose of safety symbols is to attract your
attention to possible dangers. The safety symbols
and the explanations with Vthem deserve your
careful attention and understanding. The symbol
warnings do not, by themselves, eliminate any
danger. The instructions and warnings they give
are no substitutes for proper accident prevention
measures.
WARNING: Be sure to read and understand
all safety instructions in this Operator’s Manual,
including all safety alert symbols such as
“DANGER,” “WARNING,” and “CAUTION” before
using this tool. Failure to follow all instructions
listed below may result in electric shock, re, and/
or serious personal injury.
SAFETY INSTRUCTIONS
This page depicts and describes safety symbols
that may appear on this product. Read,
understand, and follow all instructions on the
machine before attempting to assemble and
operate.
This symbol, before a safety comment,
indicates a precaution, a warning or
a danger. Ignoring this warning can
lead to an accident for yourself or
for others. To limit the risk of injury,
re, or electrocution always apply the
recommendations indicated.
Wear ear protection
Wear eye protection
Wear protective gloves
Protect against rain and wet.
Do not expose and operate the tool in
rain.
Beware of thrown or ying
objects to bystanders.
Keep by standers a safe
distance away from the
machine.
Objects thrown by the product could
hit the user or other by standers.
Always ensure that other people
and pets remain at a safe distance
from the product when it is in
operation.
In general, children must not come
near the are a where the product is.
0
6
3
o
Do not expose and operate the tool
in rain.
Wait until all machine components
have completely stopped before
touching them. The blades continue
to rotate after the machine is
switched o󰀨, a rotating blade can
cause injury.
Warning symbols on the battery pack
Batteries contain Li-ion. Waste
batteries should be recycled
according to local laws. Do not
dispose of waste batteries as
unsorted municipal waste.
Do not throw into water
Do not litter to re.
Do not subject the battery to strong
sunlight over long periods and do
not leave it on a heater
(max 113° F).
Warning symbols on the charger
+-
The charger is for indoor use only.
Double insulation
Pole orientation
Protective 6.3A limited
Do not expose and operate the tool in
rain.
T6.3A
max. 113 ˚F

120v
LITHIUM-ION
TM
8 9
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE
USING TRIMMER
WARNING - To reduce the risk of re,
electric shock, or injury:
1. Replacement Parts - When servicing use only
identical replacement parts.
2. Avoid Dangerous Environment - Don't use
appliances in damp or wet locations.
3. Don't Use In Rain.
4. Keep Children Away - All visitors should be
kept at a distance from work area.
5. Dress Properly - Do not wear loose clothing
or jewelry. They can be caught in moving
parts. Use of rubber gloves and substantial
footwear is recommended when working
outdoors. Wear protective hair covering to
contain long hair.
6. Use Safety Glasses - Always use face or dust
mask if operation is dusty.
7. Use Right Appliance - Do not use appliance
for any job except that for which it is intended.
8. Don't Force Appliance - It will do the job
better and with less likelihood of a risk of
injury at the rate for which it was designed.
9. Don't Overreach - Keep proper footing and
balance at all times.
10. Stay Alert - Watch what you are doing. Use
common sense. Do not operate appliance
when you are tired.
11. Maintain Appliance With Care - Keep cutting
edge sharp and clean for best performance
and to reduce the risk of injury. Follow
instructions for lubricating and changing
accessories. Keep handles dry, clean, and
free from oil and grease.
12. Check Damaged Parts - Before further use
of the appliance, a guard or other part that
is damaged should be carefully checked to
determine that it will operate properly and
perform its intended function. Check for
alignment of moving parts, binding of moving
parts, breakage of parts, mounting, and any
other condition that may a󰀨ect its operation.
A guard or other part that is damaged should
be properly repaired or replaced by an
authorized service center unless indicated
elsewhere in this manual.
SAVE THESE INSTRUCTIONS
GENERAL POWER TOOL SAFETY WARNINGS
WARNING: Read all safety warnings and
instructions. Failure to follow the warnings and
instructions may result in electric shock, re and/
or serious injury.
Save all warnings and instructions for future
reference.
Work area safety
1. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
ammable liquids, gases or dust. Power tools
create sparks which may ignite the dust or
fumes.
3. Keep children and bystanders away while
operating a power tool. Distractions can
cause you to lose control.
Electrical safety
1. Power tool plugs must match the outlet.
Never modify the plug in any way. Do not use
any adapter plugs with earthed (grounded)
power tools. Unmodied plugs and matching
outlets will reduce risk of electric shock.
2. Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges
and refrigerators. There is an increased risk
of electric shock if your body is earthed or
grounded.
3. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
4. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled
cords increase the risk of electric shock.
5. When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor use
reduces the risk of electric shock.
6. If operating a power tool in a damp location
is unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD
reduces the risk of electric shock.
NOTE: The term “residual current
device(RCD)” may be replaced by the term
“ground fault circuit interrupter (GFCI)” or
“earth leakage circuit breaker (ELCB)"
Personal safety
1. Stay alert, watch what you are doing and
use common sense when operating a power
tool. Do not use a power tool while you are
tired or under the inuence of drugs, alcohol
or medication. A moment of inattention while
operating power tools may result in serious
personal injury.
2. Use personal protective equipment. Always
wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes,
hard hat, or hearing protection used for
appropriate conditions will reduce personal
injuries.
3. Prevent unintentional starting. Ensure the
switch is in the o󰀨-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools
with your finger on the switch or energizing
power tools that have the switch on invites
accidents.
4. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key
left attached to a rotating part of the power
tool may result in personal injury.
5. Do not overreach. Keep proper footing and
balance at all times. This enables better
control of the power tool in unexpected
situations.
6. Dress properly. Do not wear loose clothing
or jewellery. Keep your hair, clothing and
gloves away from moving parts. Loose
clothes, jewellery or long hair can be caught
in moving parts. Dress proper footwear.
7. If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used. Use of dust collection can reduce dust-
related hazards.
Power tool use and care
1. Do not force the power tool. Use the correct
power tool for your application.
The correct power tool will do the job
better and safer at the rate for which it was
designed.
2. Do not use the power tool if the switch
does not turn it on and off. Any power tool
that cannot be controlled with the switch is
dangerous and must be repaired.
3. Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
4. Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions
to operate the power tool. Power tools are
dangerous in the hands of untrained users.
5. Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tool’s operation. If damaged, have
the power tool repaired before use. Many
accidents are caused by poorly maintained
power tools.
6. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to
control.
7. Use the power tool, accessories and tool bits
etc. in accordance with these instructions,
taking into account the working conditions
and the work to be performed. Use of the
power tool for operations different from
those intended could result in a hazardous
situation.
Battery tool use and care
1. Recharge only with the charger specied by
the manufacturer. A charger that is suitable
for one type of battery pack may create a risk
of re when used with another battery pack.
2. Use power tools only with specifically
designated battery packs. Use of any other
battery packs may create a risk of injury and
re.
3. When battery pack is not in use, keep it away
from other metal objects, like paper clips,
coins, keys, nails, screws or other small
metal objects, that can make a connection
from one terminal to another. Shorting the
battery terminals together may cause burns
or a re.
4. Under abusive conditions, liquid may be
ejected from the battery; avoid contact. If
contact accidentally occurs, ush with water.
If liquid contacts eyes, additionally seek
medical help. Liquid ejected from the battery
may cause irritation or burns.
5. Use only with the battery packs and chargers
listed below:
Battery pack Charger
Y0L120BAT2.5 Y0L120CGR

120v
LITHIUM-ION
TM
10 11
Service
a) Have your power tool serviced by a
qualified repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
CORDLESS GRASS TRIMMER SAFETY
WARNINGS
1. Read the instructions carefully
2. Be familiar with the controls and proper use
of the equipment
3. Wear protective glassed or goggles
4. Never allow children or people unfamiliar with
the instructions to use the machine .
5. Stop using the tool while people, especially
children, or pets are nearby.
6. Only use the machine in daylight or good
articial light. Never use when visibility is bad.
7. Before using the machine and after any
impact, check for the signs of wear or
damage and repair as necessary
8. Never operate the machine with damaged
guards or without the guards in place.
9. Keep hands and feet away from the cutting
means at all times and especially when
switching on the motor.
10. Take care against injury from any device
tted for trimming the cutting line length.
After extending new cutter line always return
the machine to its normal operating position
before switching on
11. Only use .808" or .095" nylon cutting line.
12. Never use replacement parts or accessories
not provided or recommended by the
manufacturer.
13. Ensure that the battery pack has been
removed before checking, cleaning or
working on the machine and when it is not in
use.
14. Always ensure that ventilation openings are
kept clear of debris.
15. During assembly take great care when tting
the guard as this has a very sharp cutting
edge on one side for cutting the nylon line.
16. Never hold the cutter head above foot height
or point it towards people or animals when in
use.
17. If the trimmer starts to vibrate excessively
switch o󰀨 immediately and have it checked
by a qualied service engineer.
CAUTION: The cutting head continues to
rotate for a few seconds after switching o󰀨.
18. Always remove any sticks and stones etc.
before using the trimmer.
19. Do not cross roads or gravel paths while
operating trimmer.
20. On steep slopes cut across the slope, never
in an up and down direction. Never run while
using the trimmer.
21. Never use the trimmer while it is raining or in
damp weather.
22. Do not overreach, keep proper footing and
balance at all times.
23. Use only genuine spare parts. Only these
spare parts are designed and suitable for
the product. The use of other spare parts not
only voids the warranty, but also endangers
yourself and your environment.
Special Operation safety for the charger
1. Recharge only with the charger specied by
the manufacturer. Do not use the original
charger on other li-ion batteries or on any
other type of battery—re or explosion may
occur.
2. Check the battery charger, cable and plug
each time before using. Do not use the
battery charger when defects are detected.
Do not open the battery charger yourself and
have it repaired only by qualied personnel
using original spare parts.
3. The charger is designed to use standard
household 100~120 V, 50/60 Hz power
source. The charger’s plug must match the
outlet. Never modify the plug in any way.
Unmodied plugs and matching outlets will
reduce risk of electric shock.
4. Do not abuse the cord of charger. Never use
the cord for carrying, pulling or unplugging
the charger. Keep cord away from heat, oil,
sharp edges or moving parts. Damaged or
entangled cords increase the risk of electric
shock.
5. Make sure the charger cord is located so
that it will not be stepped on, tripped over, or
otherwise subjected to damage or stress.
6. Keep the battery charger clean.
Contamination may cause the danger of
electric shock.
7. Protect the battery charger from rain and
moisture. The penetration of water in a
battery charger increases the risk of electric
shock.
8. Do not operate the battery charger on easily
inammable surfaces (e.g. paper, textiles,
etc.) or in combustible environments. There
is danger of re due to the heating of the
battery charger during charging.
9. The temperature range over which the
battery pack can be charged is typically 41° F
to 113° F. Therefore, charging e󰀨orts outside
the prescribed temperature range may
automatically be blocked by the protection
circuitry of the battery pack. Longest life and
best performance can be obtained if the
battery pack is charged in the normal room
condition.
10. Disconnect charger from the power supply
when not in use. This will reduce the risk of
electric shock or damage to the charger if
metal items should fall into the opening.
11. The charger is for indoor use only.
Special Operation safety for the battery pack
1. If using a battery for the rst time, it is not
fully charged form the factory. Before using it,
the battery should be fully charged rst.
2. The battery pack should be recharged when
it fails to produce su󰀩cient power on jobs
which were easily done previously. DO NOT
CONTINUE using product with its battery in a
depleted condition.
3. Do not charge the battery in an air
temperature below 41° F or above 113° F.
This is important and will prevent serious
damage to the battery. Longest life and best
performance can be obtained if the battery is
charged when air temperature is about 68° F.
4. When the machine continues to be used and
the battery temperature is above 113° F, the
battery can not be charged, even you put on
the charger. Let the machine cool for some
times and wait the temperature reduced, it
can be charged again .
5. Protect the battery pack against heat, e.g.
including against continuous sun irradiation
and re. There is a danger of explosion.
6. Do not carry individual battery packs in your
pockets or bags, as they could short-circuit
against other metal items.
7. If an exposed li-ion battery pack dose start a
re, it wll burn even more violently if it comes
into contact with water or even the moisture
in the air. DO NOT throw water on a burning
li-ion battery! A re extinguisher must be
used.
8. If the battery pack becomes too hot to the
touch during charging, disconnect and switch
o󰀨 immediately. Contact Service Centre
directly.
9. Do not open the battery yourself. There is
danger of a short circuit.
10. When battery pack is not in use, keep it away
from other metal objects, lie paperclips,
coins, keys, nails, screws or other small
metal objects, that can make a connection
from one terminal to another. Shorting the
battery terminals together may cause burns
or a re.
ASSEMBLY
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 trimmer. Any such alteration
or modication 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.
WARNING:Read the Instruction Manual
for the attachment used on this power head and
follow all warnings and instructions. Failure to
follow all instructions may result in electric shock,
re and/or serious personal injury.
WARNING:Never install, remove, or
adjust the attachment while power head is
running. Failure to stop the motor can cause
serious personal injury. Never operate power
head without the attachment.
Note: Remove the battery if tted before making
any adjustments.

120v
LITHIUM-ION
TM
12 13
Installing the line trimmer attachment shaft.
(See Fig. 3 )
1. Loosen the coupling connector knob by
rotating counterclockwise on the power head
assy.
2. Align the line trimmer attachment shaft arrow
to the coupler connector position hole until
release pin locks in position.
Note: You may have to rotate the shaft to nd
the right position for the pin to lock.
3. Re-tighten the connector knob and make
sure the shaft is fully secured in place
Removal of the line trimmer attachment shaft
(See Fig. 4)
1. Stop the line trimmer and remove the battery
pack from the machine.
2. Loosen the connector knob.
3. Pull the release pin and twist the shaft then
you can pull out the line trimmer attachment
shaft.
Installing auxiliary handle (See Fig. 5)
1. Uninstall the bolts on the auxiliary handle.
2. Install the auxiliary handle on the shaft and
then tighten the bolts with nut and make sure
the auxiliary handle is rmly secured in place.
Attaching the Shoulder Harness (See Fig. 6)
- Depress the harness clip and t to the
harness hook.
OPERATION
Inserting and removing the battery pack
To insert the battery pack
1 Align the groove on the battery pack with the
corresponding mounting ribs and press the
battery pack down until you hear a “click”.
2. Check to make sure the battery pack is rmly
secured into position- and make sure the
handle is closed on top of battery.
Battery Pack Y0L120BAT2.5 (See Fig. 17)
① Lift handle
② Main housing
③ Indicator button
④ Green LED lamps
⑤ Red LED lamp
Battery Pack Operation (See Fig. 18)
1. When you push the power indicator button,
the green LED lights will show the power
remaining. (see Fig. 28① )
2. When the battery pack over discharges or
remains very low power, the red LED light will
ash. (see Fig. 28② )
3. When the battery pack temperature is
exceeded, the red LED light will ash. Cool it
down for 10~20 minutes. (see Fig. 28② )
4. When there is fault with the battery pack, the
red LED light will ash. (see Fig. 28② )
5. Once the battery pack is correctly located
in the charger, the 4 green LED lights of the
battery pack will ash LED lights to indicate
the charging process. At the same time the
green LED light of the charger will ash
continuously during normal charging, while
the red LED light is still on. (see Fig. 28③ )
To remove the battery pack from the tool (See
Fig. 7)
1. Depress the battery releasing/locking button
on the housing.
2. The battery pack will pop up automatically.
Then lift/rotate the battery handle and remove
the battery .
Switching On/O󰀨
WARNING!
Before operating the unit, remove stones, loose
pieces of wood and other objects from the cutting
area.
To switch ON (See Fig. 8)
1. Press the Start button A until green LED light
lights up.
2. Depress the safety lock button-B and
squeeze the switch trigger-C at the same
time.
3. Select your required speed setting by
depressing the speed adjustment button.
4. Move your thumb away from the safety
button.
To switch OFF
- Release the on/o󰀨 trigger switch. (ON/OFF
button)
NOTE: Always switch o󰀨 line trimmer before
placing it down.
Speed adjustment (See Fig. 9)
This machine has 3 speed settings which can be
changed with a press of a button.
1. Ensure the line trimmer is switched ON, the
LED light will be illuminated.
2. Press the speed adjustment button and set to
your desired cutting speed.
3. If the speed is set to Max., press the speed
adjust button again and this will reduce the
speed.
NOTE: This trimmer also has the speed
memory function, with the battery pack was
kept in position. The speed setting of next
use can be kept the same as previous use.
To Increase Line Length
1. The line trimmer comes with a full line pool.
2. The line will wear in use and you will need to
feed out new line .
3. The cutting bump head allows the operator to
release more line without stopping the motor.
As line becomes frayed or worn, additional
line can be released by tapping the bump
knob on the ground while operating the
line trimmer.
NOTE: For a good cutting performance. Cut high
grass in stages. Starting from the top.
Special notice for line trimmer use
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 trimming next to
trees and bushes. The cutting head could
damage sensitive bark, and damage fence
posts.
Removing/replacing the cutting bump head
WARNING: Before performing any
assembly, always ensure that the battery pack
has been removed.
If the nylon cutting line is broken and the nylon
spool needs replacing.
WARNING: Wear work gloves when
performing maintenance.
Note! Alway use Yard Force branded service
replacement parts - to prevent voiding your
warranty.
1. Line up the spacer hole up with the hole on
the side of guard. (See Fig. 10)
2. Place a small screw driver or metal rod in the
spacer hole. (See Fig. 11)
3. Rotate the head clockwise to loosen and
remove.
4. Reverse steps 1 - 3 to reinstall the same
cutting bump head.
5. Make sure that the cutting head is securely
located.
Removing /replacing old trimmer line
1. Press the two release tabs on the cutting
bump head and pull the spool retainer out.
(See Fig. 12)
2. Remove any excess trimmer line or
obstructions from the spool. (See Fig. 13)
3. Use a clean cloth to wipe away any debris
from the spool, spool cover, or spool housing.
4. Re-install the cutting bump head without
new line. Make sure that the two holes on
the each side on the retainer are in the right
position. (See Fig. 14)
5. Then align the tabs of the cutting bump cover
with the posts on the spool housing. Push
the cover until the tabs securely snap into the
posts.
6. Take an approximately 16 Ft. of 0.095"
diameter cutting line through the cutting
bump head, and then place the cutting bump
head in the middle of the new cutting line.
(See Fig. 15)
7. Use the top cutting bump head cover to
clockwise wind the new cutting line in the
cutting bump head. (See Fig. 16)

120v
LITHIUM-ION
TM
14 15
TROUBLE SHOOTING
WARNING ！
Before performing any repair work, always ensure that the battery pack/safety key has been removed
and wait until the cutting head has stopped completely and the tool has cooled down.
WARNING ！
Always wear heavy duty gloves when adjusting or cleaning, especially when handling sharp objects.
Fault/malfunction Cause Remedy
Product does not start Battery is discharged. Remove and recharge the battery.
The battery is not correctly located. Remove the battery and re-install into
the product, check that it is securely
locked in place.
The tool needs repair. Contact service partner.
Safety lock not depressed prior to
starting.
Restart machine by rstly depressing
the lock button and then depressing the
switch trigger.
Motor overload protection activated. Wait 10 mins and then restart the ma-
chine.
The tool is vibrating The guard is not tted -resulting in
too much line be extended.
Remove the battery pack and t the
guard.
Bigger diameter cutting line being
used.
Use correct cutting line dia --0.095"
(0.080" Compatible).
The cutting head is bound up with
grass.
Remove the battery pack and clean
grass from the cutting head.
The trimmer will not ad-
vance line
The spool is empty or there is NOT
enough line on the spool.
STOP the trimmer – remove the battery
pack and reload the spool with correct
size /length of line.
The line on the cutting head spool is
twisted /tangled on the spool.
STOP the trimmer -remove the battery
pack and check the spool line.
Trimmer head is dirty. STOP the trimmer -remove the battery
pack and clean the cutting head.
Grass wrapped around
cutting head
Cutting too tall grass in one pass. Recommend to cut smaller amounts of
grass height -starting from the top and
working downwards.
Line is not cutting Trimmer guard blade is worn. Sharpen blade OR replace with New
blade.
STORING AND MAINTENANCE
WARNING ！
Before performing any repair work, always
remove the battery pack and wait until the cutting
line has come to a standstill!
1. Do not spray the line trimmer with water.
Exposure to water may destroy the battery
pack and the electric motor.
2. Clean the unit with a cloth, hand brush, etc.
3. Keep all nuts, bolts and screws tight to
be sure the equipment is in safe working
condition;
4. Replace worn or damaged parts for safety.
Storage:
Clean the exterior of the tool thoroughly using a
soft brush or cloth, do not expose or immerse in
water, solvents or polishes.
Store the machine in a dry place. Do not place
other objects on top of the machine.
Transport
Use the original packaging to ship whenever
possible.

16
WARRANTY
Product Warranty
Please keep your original purchase receipt in a safe place as proof of purchase.
Warranty coverage for this product must be veried by the original purchase receipt.
The warranty period begins on the day that the product was purchased from an authorized retailer of
Yard Force products. Warranty coverage only applies to the original purchaser and is not transferrable.
Warranty coverage is only provided on products purchased from authorized Yard Force retailers.
Warranty only applies to products purchased and operated in the USA. Any product purchased or operat-
ed outside of the USA is not covered by any warranty.
(1) Five-Year Warranty on Yard Force Outdoor Power Equipment and
Three- Year Warranty on 120vRX Battery Pack and Charger
FOR FIVE YEARS from the date of original retail purchase, this Yard Force product is warranted against
defects in material or workmanship. Defective products will be repaired at no-charge (excluding ship-
ping).
FOR THREE YEARS from the date of original retail purchase, the Yard Force 120vRX battery pack and
charger are warranted against defects in material workmanship. Defective products will be repaired at
no-charge (excluding shipping).
Commercial use voids the warranty. This warranty does not cover accidental damage, unreasonable use,
normal wear and tear, neglect or non-compliance with the Operating, Safety and Maintenance Instruc-
tions. All service, outside of normal maintenance as described in this manual, must be done by an autho-
rized service technician. Any unauthorized service or changes to the original conguration of this product
will void the warranty. All parts and accessories used on and with this product must be manufactured
and/or authorized by Merotec Inc., a SUMEC company.
(2) Ninety-Day Warranty – Accessories
The accessories included with the Y0LTX18TB00 including cutting head, shoulder harness and safety
guard, and other similar parts are warranted against manufacturer defects for residential use only for a
period of 90 days from date of purchase.
Warranty does not cover loss of use or other consequential damages arising from any of the above, nor
does it cover repairs made or attempted by unauthorized persons.
This warranty is void if the product is used for commercial, rental or industrial purposes.
Certain parts, attachments and accessories are subject to normal wear and tear and are excluded from
the warranty.
Service and Warranty Claims Process
Contact the Yard Force Support Center toll-free at [phone] Monday-Friday between 8:30 AM
and 5:00 PM Eastern Time for service and warranty support.
Yard Force Service Support agents can help you troubleshoot problems over the phone to get you back
up and running as quickly as possible. In the situation where service or warranty inspection is needed,
please follow these steps:
1. Call Yard Force at [phone] Monday-Friday between 8:30 AM and 5:00 PM Eastern Time.
2. Send in proof-of-purchase and serial number (if applicable) to conrm warranty Coverage as directed
by Yard Force.
3. If service or a warranty evaluation is requested, Yard Force will provide an RGA number that should be
used in all communications with Yard Force and is required to be indicated on the product itself and on
the outside of the box.
4. All shipments to Yard Force must have an RGA number. Any shipment received that does not have an
RGA number clearly marked on the outside of the box will be refused.
5. All shipments must be sent pre-paid, Yard Force does not pay for any shipping costs for service or
warranty evaluation. Yard Force is not responsible for any packages that are lost by carrier. We recom-
mend that shipments are made by a carrier that provides tracking and delivery conrmation.
For more information or to ask questions, please call toll-free [phone] Monday-Friday between
8:30 AM and 5:00 PM Eastern Time.
SAVE THESE INSTRUCTIONS
Merotec Inc.
3655 Kennesaw North Industrial Parkway, Kennesaw, GA 30144
Copyright © 2017 Merotec Inc.
Made in China at a SUMEC manufacturing facility
MADE IN CHINA