Makita UH4510A User manual

450 mm (17-3/4
630 mm (24-3/4
Effectivecutting
blade length
450 mm
(17-314”)
630
mm
(24-314”)
MODEL
UH4510A
UH6310A
’) MODEL UH4510A
’) MODEL UH6310A
Equipped with electric brake
Strokes Dimensions Net
per minute
(L x W x H) weight
825 mm x 180 mm x 170 mm 3 2 kg
(32-112”
x 7 118” x 6 518”) (7 0 Ibs)
1,000 mm x 180 mm x 170 mm 3 4 kg
(39-318”
x 7-118” x 6-518”) (7 5 Ibs)
1,800
1,800
INSTRUCTION MANUAL
DOUBLE
INSULATION
SPEC IF I CAT IONS
* Manufacturer reserves the right to change specifications without notice.
* Note: Specifications may differ from country to country.

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING - TO REDUCE THE RISK OF INJURY, BASIC
SAFETY PRECAUTIONSSHOULD BE OBSERVED. INCLUDING
THE FOLLOWING:
READ AND FOLLOW ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
2
DRESS PROPERLY - Do not wear loose clothing or jewelry. They can be
caught
in moving parts. Use safety glasses and nonskid footwear. Use of
sturdy gloves is recommended.
STAY ALERT
- Watch what you are doing - use common sense. Do not
operate trimmer when fatigued.
DANGER - RISK OF CUT - KEEP HANDSAWAY
FROM BLADES - Keep both hands on handles when power is on.
Do not attempt to remove cut material nor hold material to be cut when
blades are moving. Makesure trimmer is switchedoff and unpluggedwhen
clearing jammed material from blades. Do not grasp the exposed cutting
blades or cutting edges of trimmer.
CAUTION
- Blades coast after turn off.
WARNING
- TO REDUCE THE RISK OF ELECTRIC SHOCK - Don't use
trimmer in rain,
in wet locations, or on wet hedges of shrubbery. Use only
extension cords marked "for use with outdoor appliances" having elec-
trical rating not less than rating of trimmer. Do not use damaged extension
cords. Inspect cords periodically and replace
if damaged. Donotabuse cord.
Never carry trimmer by cord. Do not yank cord to disconnect from re-
ceptacles. Keep cord away from heat, oil, and sharp edges.
KEEP CHILDREN AWAY
- Do not permit children to contact trimmer or
extension cord. Keep children a safe distance from work area.
USE TRIMMER PROPERLY
- Use only for trimming the type of shrub,
growth, and the like, described
in the operating instructions. Do not abuse
trimmer. Do not cut grass and weeds
with this trimmer.
DON'T OVERREACH
OR STAND ON UNSTABLESUPPORT - Keepgoodfoot-
ing and balance at all times.
AVOID UNINTENTIONAL STARTING OF TRIMMER
- Before plugging in
trimmer, be sure trimmer switch is off. Don't carry trimmer with finger on
switch.
AVOID LOCKINGTRIMMER SWITCH ON
- Never attempt totape, wire or
fasten the switches
so as to stay in the ON position.
DISCONNECT (UNPLUG)TRIMMER FROM POWER SUPPLY
- When not in
use. Before servicing, cleaning, and the like.

11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
MAINTAINTRIMMER WITH CARE
- Followmaintenance instructionsgiven
in manual.
STORE TRIMMER INDOORS
- When not in use store trimmer indoors in
a dry place where not accessible to children.
DO NOT ATTEMPT TO REPAIR TRIMMER - Have repairs made by qualified
dealer or repairman. See that only identical replacement parts are used.
The cord set you use with trimmer shall be marked with the suffix W-A
following the cord type designation, for example -SJTW-A, to indicate it is
acceptable for outdoor use.
Make sure your cord set is
in good condition. When using a cord set, be
sure to use one heavy enough to carry the current your product
will draw.
For lengths less than
25 feet, No. 18 AWG cord set should be used. An
undersized cord will cause a drop in line voltage resulting in loss of power
and overheating. (NOTE: Table 1 shows the correct size to use depending
oncordlength. If indoubt, use the next heavier gage. The smaller the gage
number the heavier the cord.) To reduce the likelihood
of disconnection of
hedge trimmer cord from the cord set during operating, use the hook
described in this manual. Table
1
MINIMUM GAGE FOR CORDS SETS
CORD SETS --
16 14
Total Length of Cord in Feet 50 1
18 I 16 I
t- AWG Size of Cord
Contact MakitaAuthorized or Factory Service Center if a proper extension
cord cannot be found.
Inspect blades periodically and replace before operation if damaged.
Hold the tool firmly
with both hands.
Do not leave the tool running. Operate the tool only when hand-held.
Attention!
Do not expose this tool to rain.
The tool must not be left outdoors and it must not be used when wet.
Be cautious not to cut through the supply cable while trimming. Pull plug
immediately if the supply cable be damaged
or cut.
When not
in use, be sure to cover the blades with the blade guard.
VOLTAGE WARNING: Beforeconnectingthe tooltoa power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same as that specified on the
nameplateof the
tool. A power source with voltage greater than that specified
for the tool can result
in SERIOUS INJURY tothe user - as well as damage to
the tool. If in doubt, DO NOT PLUG IN THE TOOL. Using a power source with
voltage less than the nameplate rating is harmful to the motor.
SAVE THESE INSTRUCTIONS.
3

Installing grip
Attach the grip onto the grooves in the
tool side and secure with the two screws.
WARNING:
DO NOT USEWITHOUT GRIP.
Hook
When using an extension cord, secure it
to the tool's cord with the hook provided.
Attach the hook about 100-200 mm (4" -
8") from the extension cord connector.
This will help prevent unintentional discon-
nection.
Switch action
To prevent the trigger from being acciden-
tally pulled, a lock-off button is provided
as a safety feature.
To start the tool, press the lock-off button
in and pull the trigger. Release the trigger
to stop.
Power cord
Cord connector
Extension cord
1
CAUTION :
Before plugging in the tool, always check to see that the trigger switch actuates properly
and returns tothe "OFF" positionwhen released.
4

Operation
Refer to the ImportantSafety Instructions
before operation.
Do not attempt to cut branches thicker
than 12 mm (15/32”) diameter with this
trimmer. These should first be cut with
shears down
to the hedge trimming level.
Hold the trimmer with both hands and
move itin front of your body.
When operating the trimmer, keep exten-
sion cord behind trimmer. Never drape
it
over hedge beingtrimmed.
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.
Safety glasses
~~~~ ~~~
Sturdy gloves
5

To cut a
from the hedge side evenly,
bottom upwards.
it helps to cut
Trim boxwood or rhododendron from the
base toward the top for
a nice appearance
and goodjob.
CAUTION
:
Be careful not to accidentally contact a metal fence or other hard objects while trim-
ming. The blade will break and may cause serious injury.
0 Do notattempt totrim too much at a time, or malfunction of the tool may result.
Overreaching with a hedge trimmer, par-
ticularly from
a ladder, is extremely dan-
gerous. Don't work from anything wob-
bly or unfirm.
6

MA1NTENANCE
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore attempting to perform
inspection and maintenance.
Blade maintenance
After operation, clean off the blades (both
sides) with
a stiff brush. Then wipe the
blades with a cloth and coat them with
light machineoil.
After use
When storing the tool, use the convenient
hole in the bottom of the tool handle to
hang the toolon
a wall from a nailor hook.
The tool will stop when the carbon brushes wear to
a certain length. When this occurs,
both carbon brushes should be replaced.
To maintain product SAFETY and RELlABlLITY, repairs, carbon brush inspection and
replacement, any other maintenance or adjustment should be performed by Makita
Authorized or Factory Service Centers, always using Makita replacementparts.
7

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 used only in the proper and intended manner.
0 Bladecover
Part No. 414247-4
Part No. 414248-2
(For model UH4510A)
(For model UH6310A)
0 Hook
Part No. 158024-1
Shear bladeassembly
Part No. 125008-4
Part
No. 125009-2
(For model UH4510A)
(For model UH6310A)
8

Mar 13 89 US
HEDGE TRIMMER
@TlmKita 450 mm (17-3/4") Model UH4510A
630
mm (24-3/4"1 Model UH6310A
Note: The switch and other part configurattons
may differ from country to country.
9

MODEL UH451OA. UH6310A
IitM $FD DESCRIPTION
Mar 13
89 US
'itM $!, DESCRIPTION
MACHINE
__
1
2
3
4
5
6
7
8
9
11
13
14
15
16
17
18
19
20
21
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
Housing Set IWith Item 261
Switch
Cord Guard
Cord
Strain Relief
Pan Head Screw M4x18 [With Washer]
Switch Lever
Lock Of1 Button
Compression Spring 3
P," 10
Flat Washer 10
Gear 68
Crank
Ball Bearing 608LB
Terminal Bare
Field
ARMATURE ASSEMBLY
IWith
Item 18 & 21
sponge Seal
Sponge Sea1
231
MACHINE
__
22
23
24
25
26
21
28
29
30
31
32
33
34
35
36
37
38
1
1
2
2
1
5
1
3
1
2
1
4
1
1
1
1
2
-
Fan 70
Ball Bearing 609LB
Receptacle Sleeve
Carbon Brush
Housing Set IWith llem 11
Tapping Screw 4x20
Name Plate
Pan Head Screw M5x55 IWith Washerl
Grip
21
Pan Head Screw M5x20 IWith Waaherl
SHEAR BLADE ASSEMBLY
Pan Head Screw M5x16 [With Washerl
Pan Head Screw M4x12
Guard
Hex Nut M4 10
Bottom Cover
Tapping Screw 4x14
Note
The Switch and other part specifications may differ from country to country
10

MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leavingthe 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 caused by defective workmanship or material, Makita will repair (or at our option,
replace) without charge.
This Warranty does not apply where:
0 repairs have been made or attempted by others:
re~airsare reaulred because of normal wear and tear.
0 T6e tool has Geen abused, misused or improperly maintained;
alterationshave been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALEOR USE OFTHE PRODUCT. THIS DISCLAIMER
APPLIESBOTH DURING AND AFTER THE TERM OF THISWARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF “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 incidentalor consequential
damages,
so the above limitation or exclusion may not apply to you. Some states do not allow
limitation on how long an implied warranty lasts,
so the above limitation may not apply to you.
€Lu&&icwu.nh%,Ltd.
11-8,3-chome, Sumiyorhi-cho,Anjo, Aichi 446, Japan
883664-065
PRINTED INJAPAN
1990 - 3 - N