Makita UH303D User manual

Battery-Powered Hedge TLimmer
Equippedwith Electric Brake
300 mm (11=3/4") MODEL UH303D
300 mm (11-3/4") MODEL UH303DST
With Battery & Charger
Effective cutting blade length
300 mm (11-314")
INSTRUCTION MANUAL
Strokes per min.
1,200
Dimensions (L x W x HI
669 mm x 140mm x 137 mm
(26-318" x 5-1/2" x 5-318")
Net weight
1,3 kg (2,9 Ibs)
SPECIFICATIONS
Battery 122
Voltage
12v
Model DC122 Charger
Input output Charging time
A.C. 115V 60Hz D.C. 12V Approx.
1 Hr.
* Note: Specifications may differ from country to country.
I
Makita battery 122is a lead-acidbattery. Be sure to follow thefollowing instructionsto charge it.
1)Always charge
it immediately after purchase.
iA 2)Always recharge it after use.
1 0 \
CAUTION 31
Be sure to charge it for approx. one week every six months, when not using it for long periods.
If left uncharged,
it may become unchargeable.
WARNING
Read the important safety instructions.
*For your personal safety, READ and UNDERSTAND before using
Use only the Makita battery 121 or 122.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

IMPORTANT
SAFETY INSTRUCTIONS
(For Hedge Trimmers)
.
WARNING: WHEN USING ELECTRICTOOLS, BASIC SAFETY
PRECAUTIONSSHOULD ALWAYS BE FOLLOWEDTO REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, AND PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1. Avoid Dangerous Environment - Don't use hedge trimmers in damp or wet
2. Don't Use In Rain.
3. Keep Children Away - All visitors should be kept at a distance from work area.
4. Dress Properly - Don't wear loose clothing or jewelry. They can be caught
in moving parts. Use
of rubber gloves and substantial footwear is recom-
mended when working outdoors. Wear protective hair covering to contain
long hair.
5. Use Safety Glasses - Always use face or dust mask if operation is dusty.
6. Use Right Appliance - Do not useappliance for anyjob exceptthat for which
it is intended.
7. Avoid Unintentional Starting - Don't carry plugged-in hedge trimmer with
finger on switch. Be sure switch is off when plugging
in.
8. Danger - Risk of Cut - Keep Hands Away From Blades - Keep both hands
on handles when power is on. Do not attempt to remove cut material nor
hold materialtobe cut when blades are moving. Make sure tirmmer switch
is off when clearing jamed material from blades.
Do not grasp the exposed
cuttingbladesor cuttingedges when picking upor holdingthe hedgetrimmer.
Caution
- blades coast after turn off.
9. Don't Force HedgeTrimmer - It willdo thejob betterand with less likelihood
of a risk of injury at the rate for which
it was designed.
locations.
IO. Don't Overreach - Keep proper footing and balance at all times.
11. Stay Alert - Watch what you are doing. Usecommon sense. Do notoperate
hedge trimmer when you are tired.
12. Store Idle HedgeTrimmer Indoors - When not in use, hedgetrimmer should
bestored indoors
in dry, and high or locked-upplace - outof reachof children.
13. MaintainHedgeTrimmer With Care
- Keep cutting edge sharp and cleanfor
best performance and to reduce the risk of injury. Follow instructions for
lubricating and changing accessories. Inspect adapter cord periodically,
and if damaged, have
it repaired by an authorized service facility. Inspect
2

extension cords periodicallyand replace if damaged. Keep handlesdry, clean,
and free from oil and grease.
14. Check Damaged Parts
- Before further use of the hedge trimmer, a guard
or other partthat isdamaged should be carefully checked todetermine that
it will operate properly and perform itsintended function. Check for align-
ment of moving parts, binding of moving parts, breakage of parts, mount-
ing, and any other condition that may affect itsoperation.
A guard or other
part that is damaged should be properly repaired or replaced by an autho-
rized service center unless indicated elsewhere in this manual.
15.
WARNING- DO NOT USE WITHOUT HANDLE AND GUARD.
16. Hold the hedge trimmer firmly with both hands.
17.
Do not charge battery in rain, or in wet locations.
18. Removeor disconnect battery beforeservicing, cleaningor removing material
from the hedge trimmer
19.
Do notdispose of the battery(ies1inafire. The cellmay explode. Check with
local codes for possible special disposal instructions.
20.
Do not open or multilate the battery(ies). Released electrolyte is corrosive
and may cause damage to the eyes or skin.
It may be toxic if swallowed.
21. Exercise care
in handling batteries in order not to short the battery with
conducting materials such as rings, bracelets, and keys. The battery or
conductor may overheat and cause burns.
22. USE TRIMMER
PROPERLY - Useonly for trimming the type of shrub, growth,
and the like, described inthe operating instructions.
Do not use hedge trim-
mer to cut grass or weeds.
23.
Do not point blades to anyone in the vicinity.
24. It is extremely dangerous to grasp branches while cutting. If the bladesjam,
because of
a piece of wire or impacted branch, switch off immediately and
remove the material stuck in the blades.
25. Be careful not to cut the adapter cord with the blades.
26. When stopping operation or before carrying hedge trimmer, always switch
if off and wait until the blades come to a complete stop. Carry the hedge
trimmer with the blades in front and away from
you.
27. Stop operation immediately if you notice anything abnormal. Switchoff the
hedge trimmer and disconnect the battery from the hedge trimmer. Then
inspect
it.
28. When not in use, always disconnect the battery fromthe hedgetrimmer and
cover the blades with the blade guard (blade cover).
3

IMPORTANT SAFETY INSTRUCTIONS
FOR BATTERY
& CHARGER
I. SAVE THESE INSTRUCTIONS - This manual
contains important safety and operating instructions for battery charger.
2. Before using batterycharger, read all instructions and cautionary markings
on
(1) battery charger, (2) battery, and (3) product using battery.
3. CAUTION - To reduce risk of injury, charge only MAKITA battery 121 or
122. Other types of batteriesmay burst causing personalinjury and damage.
Non-rechargeable batteries can not be charged with this battery charger.
4. Do not expose charger to rain or snow.
5. Use of an attachment not recommended or sold by the battery charger
manufacturer mayresult
in a risk of fire, electric shock, or injurytopersons.
6. To reduce risk of damage toelectric plug and cord, pull by plug rather than
cord when disconnecting charger.
7. Make sure cord is located so that it will not be stepped on, tripped over,
or otherwise subjected to damage or stress.
8. An extension cord should not be used unless absolutely necessary. Use of
improper extension cord could result
in a risk of fire and electric shock. If
extension cord must be used, make sure:
a. That pins on plugof extension cord are the same number, size, and shape
b. That extensioncord is properly wired and
in good electricalcondition; and
c. That wire size is at least as large as the one specified
in the table below.
TABLE
1
RECOMMENDED MINIMUM AWG SIZE FOR
EXTENSION CORDS FOR BATTERY CHARGERS
as those of plug on charger;
I Length of Cord (Feet) I 25 1 50 I 100 I 150 I
AWG Size of Cord I 18 I 18 I 18 I 16 I
9. Do not operate charger with damaged cord or plug - replace them im-
mediately.
IO. Do not operate charger if it has received a sharp blow, been dropped, or
otherwise damaged in any way; take
it to a qualified serviceman.
11. Donotdisassemblecharger or battery; take it toa qualified servicemanwhen
service or repair is required. Incorrect reassembly may result in a risk of
electric shock or fire.
12. To reduce risk of electric shock, unplug charger from outlet beforeattempt-
ingany maintenanceor cleaning.Turningoff controls
will notreducethis risk.
4

ADDITIONAL SAFETY RULES FOR BATTERY
1. Always charge the Makita battery 122 immediately after purchase.
2. Always recharge the Makita battery 122 after use.
3. Be sure to charge the Makita battery 122 for approx. one week every six
months, when notusing
it for longperiods. Ifleft uncharged, it may become
unchargeable.
4. Use only the Makita charger Model DC122 or DC121 specified to charge
the Makita battery 122.
5. Do not charge inside a box or container of any kind.
6. Do not short the battery:
1) Do not touch the terminals with any conductive material.
2) Avoidstoringbattery in acontainer with other metalobjects suchas nails,
3) Do not expose battery to water or rain.
4) Do not cut the adaptor cord.
A battery short can cause a large current flow, overheating, possible burns
and even a breakdown.
7. Do notleave the battery exposed todirect sunlight. Do notstorethe battery
in locations where the temperature may reach or exceed 4OoC (104°F).
8. The Makita battery 122 contains a strong electrolyte (dilute sulfuric acid).
Do not apply undue force to the battery, drop or strike it. Do not attempt
to disassemble or make modifications to the battery.
9. Ifthe battery breaks open and electrolyte (dilutesulfuric acid)contacts skin
or clothing, wash immediately with running water. If electrolyte gets into
your eyes, rinsethem out
with clear water and seek medical attention right
away.
IO. As the battery service life ends, its capacity and operation time decrease.
Replace
it with a new one.
11. Never exposethe battery toflames, fire or great heat. Breakage may cause
release of injurious material.
coins, etc.
5

ADDITIONAL SAFETY RULES FOR CHARGER
1. The Makita charger Model DC122 is specifically designed to charge only
the Makita battery 121 or
122. Donot attempt to charge any other battery
with this charger.
2. Handle the charger carefully. Do not drop or strike it.
3. Never carry the charger by cord or yank it to disconnect from receptacle.
4. Keep cord from heat, oil, chemicals, and sharp edges.
5. Use only a power source of the same voltage as indicated onthe nameplate
6. Do not attempt to use a step-up transformer, an engine generator or DC
7. Charge the battery at a roomtemperature of 10°C (5OOF) - 4OoC (104OF).
8. Do not charge in place exposed to direct sunlight.
9. Do not allow the charger to get wet.
IO. Do not charge inside a box or container of any kind.
11. Do notcharge near volatile, flammable materialsuchas gasoline, paint, gas,
12. Do not charge on top of paper, carpet, vinyl sheeting, cloth materials, etc.
13. Do not allow anything to cover or clog the charger vents. Do not attempt
14. Do not charge in dusty place.
15. Stop charging immediately if you notice anything abnormal. Ship or take the
charger and the battery toyour nearest MakitaService Center or Distributor
for checking them.
of the charger when charging.
power receptacle.
adhesive, etc.
to insert anything into the vents.
16. Do not attempt to disassemble or make modifications to the charger.
17. Do not putany metalobjects
or foreign matter intothe inlet of the charger.
Short-circuit
will occur, causing a burn injury and charger breakdown.
SAVE THESE INSTRUCTIONS.
6

Charging
Connect the battery tothe charger usingthe adaptor cord. Then plug the charger into the
power source. The charging light will illuminate and chargingwill begin. When the charg-
ing light goes out
at a certaintime, the charging is complete. Unplugthe charger.
(Note: Referto the table below for the chargingtime.)
DC122
122
Approx. 1 hour
DC121
Approx. 2 hours
I 121 I Approx. 2 hours I Approx. 4 hours I
Battery-, i- Ou tiet
I
CAUTION:
Always charge the Makita battery 122 immediately after purchase.
0 Always recharge the Makita battery 122after use.
If the Makita battery 122 has not been used for long periods,charge
it for more than the
time specified in the table above. (Example: If
it has not been used for six months,
charge
it for approx. one week.) Chargingcontinues even after the charginglight goes out.
If the battery
is left uncharged for more than six months, it may becomeunchargeable. If
the light does not come on within five minutes after you start the charging, the battery
may be unchargeable. Ship or take the charger and the battery to your nearest Makita
Service Center or Distributor for checking.
Installingthegrip
Attach the grip onto the groove in both
sides of the tool and secure with the two
screws.
ScrewdriverScrewdriver

Switchaction
To prevent the trigger from being acciden-
tally pulled,
a lock-off lever is provided.
To start the tool, slide the lock-off lever
in the direction of the arrow and pull the
trigger.
Release the trigger tostop.
- Lock-off lever
Switch trigger
CAUTION:
Before connecting the battery to the tool, always check to see that the switch trigger
0 Do not switch on the tool when someone is nearby or when the blades are contacting
actuates properly and returns tothe
"OFF" position when released.
something.
Connectingthe battery tothe tool
Connect the battery
to the tool usingthe adaptor cord. To preventthe adaptor cord from
beingaccidentally disconnected, hook the cord to both strain relief hooks on the tool and
the battery.
\
\
-Strain relief hook
.Adaptor cord
/ Strain relief hook
8

Carrying the battery
Hook the battery to your waist belt. Ifthe
adaptor cord
is too longfor your work, use
the band provided to hold
it when you coil
it shorter.
Operation
Do not attempt to cut branches thicker
than
8 mm (5/16") diameter with this
trimmer. These should first the cut with
shears downto the hedge trimming
level.
Hold the tool firmly with both hands.
Switch on the tool without the blades
making any contact. Movethe tool in front
of your body while cutting.
To cut a hedge top evenly, it helps to tie
a string or cord at the desired hedge height
and to trim along
it, using it as a reference
line.
n
ing or cord
9

To cut a hedge side evenly, it helps to cut
from the bottom upwards.
Trim boxwood or rhododendronfrom the
base toward the top for
a nice appearance
and good job.
CAUTION:
0 Keep hands away from blades.
Be careful not to accidentally contact a metal fence or other hard objects while trim-
*When not in use, be sure to cover the blades with the blade guard (blade cover). Ex-
ming. The bladewill break and may cause serious injury.
posed blades may cause serious injury
if someone trips over the tool.
10

MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and the battery is disconnected from the tool
before attempting to perform inspection or maintenance.
Blade maintenance
After use, clean off the blades (bothsides)
with
a stiff brush. Then wipe the blades
with
a cloth and coat them with light
machineoil.
CAUTION:
Dirt and corrosion cause excessive blade
friction and shorten the operating time per
battery charge.
Storage
Do not clean the tool, charger and/or battery with benzine, thinner or cleaningchemi-
cals. Cracks and discoloration may be caused.
Do not store the tool, charger and/or battery in locations where the temperature may
reach or exceed 40°C (104OF).
When storing the tool, use the convenient hole in the bottom of the tool handleto hang
the tool on
a wall from a nail or hook.
*The blade guard (blade cover) can be used
as an oil reservoir as well as a convenient
storage device for the tool while not in use. Secure the blade guard tothe wall (outof
the reach of children) using nails or screws. Fill the blade guard with mixed oil (motor
oil
: kerosene = 1 : 2) up to the line marked v . By storing your hedge trimmer with
the shear blades inserted in the oil-filled blade guard, rust on the shear blades can be
effectively prevented.
To maintain product SAFETY and RELlABlLITY, repairs, maintenance or adjustment
should be performed by Makita Authorized or Factory Service Centers, always using
Makita replacementparts.
11

ACCESSORIES
CAUTION :
These accessories or attachments are recommended for use with your Makita tool specified in this
manual. The use of any other accessories or attachments might present
a risk of injury to persons. The
accessories or attachments should be usedonly in the proper and intended manner.
Charger
Model DC122
Blade
0 Battery 122
0 Extension cord
12

Dec -19-'94 US
300 mm (11-3/4")
Model UH303D
BATTERY-POWERED HEDGE TRIMMER
Note: The switch and other part configurations
may differ from country to country.
13

MODEL UH303D
';"OM GfD DESCRIPTION
Dec.-19-'94 US
'LLM AtD DESCRIPTION
MACHINE
~
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
1
1
1
1
1
1
2
1
1
1
1
1
1
Name
Plate
Housing Set (With Item 201
Shaft
Helical
Gear 52
Plate
Crank
Urethan Sleeve 4
Guard
Hex NutM4-10
Gear 14-34
Flat Washer
6
Shaft
Motor
ID C 12 V 1
sponge Sea1
MACHINE
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15
16
17
18
19
20
21
22
23
24
25
26
21
28
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1
1
1
1
1
1
5
1
1
2
1
1
4
1
-
Note: The s.wtch and other part speclflcatmns may dlffer from country to co~niry.
Switch
Switch Lever
Lock Off Lever
Compression Spring 3
Inlet
tiouslng Set lwlth Item 21
Tapping Screw 4x20
Makita
Label
Grip Set IWith Item 241
Pan Head Screw M5xl8IWithWashed
SHEAR BLADE ASSEMBLY
Pan Head Screw M4x15
Pan Head Screw M4x10 IWiIhWasher1
Spacer
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15

Recycling the battery
The only way to dispose of a Makita battery is
to recycle it. The law prohibitsany other
method
of disposal.
To recycle the battery:
1) Remove belt from the battery
2) Ship or take battery to your nearest Makita Factory Service Center or Distributor that
sells Makita lead batteries.
(Call your nearest Makita Service Center or Distributor to determine the location that
provides Makita lead battery recycling. See your local Yellow pages under
”Tools -
Electric”. Pleasenotethat insomestates abatterythat hasreachedthe end of life needs
to be provided at the time you purchase a new lead battery or else a deposit will be
charged on the purchase
of the new lead battery.)
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MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to
be free of defects from workmanship and materials for the period of ONE YEAR from the date of
original purchase. Should any trouble develop during this one-year period, return the COMPLETE
tool, freight prepaid, to one of Makita’s Factory or Authorized Service Centers. If inspection shows
the trouble
IS causedby defectiveworkmanshipor material,Makitawill repair(or at our option, replace)
without charge.
This Warranty does not apply where:
repairs have been made or attempted by others:
repairs are required because of normal wear and tear:
*The tool has been abused, misused or improperly maintained;
alterations have been made to the tool.
*The battery has not been charged immediately after purchase.
INNOEVENTSHALL MAKITA BE LIABLEFOR ANY INDIRECT,INCIDENTAL
OR CONSEQUENTIAL
DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH
DURING AND AFTER THE TERM OF THIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED WAR-
RANTIESOF “MERCHANTABILITY” AND “FITNESS
FOR A SPECIFIC PURPOSE,” AFTER THE
ONE-YEAR TERM OF THIS WARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary from
state to state. Some states do not allow the exclusion or limitation of incidental or consequential
damages,
so theabove limitation or exclusion maynot apply toyou. Some states do not allow limita-
tion on how long an implied warranty lasts,
so the above limitation may not apply to you.
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Makita Corporation
3-11 -8, Sumiyoshi-cho,
Anjo, Aichi
446 Japan
883993 - 989
PRINTED IN JAPAN
1995 - 5 - N