Makita UH4510A User manual

n
Effective cutting
blade length
MODEL
450 mm (17-314") MODEL UH4510A
630 mm (24-3/4") MODEL UH6310A
Equipped with electric brake
Strokes Dimensions Net
per minute IL x W x HJ weight
INSTRUCTION MANUAL
UH4510A
____
UH6310A
SPECIFICATIONS
825 mm x 180 mm x 170 mm
(32-112" x 7-118" x 6-518")
1,000 mm x 180 mm x 170 mm
(39-318'' x 7.118" x 6-518")
3.2
kg
(7.0 Ibs)
3.4 kg
(7.5 IbsJ
1.800
1,800
450 mm
[ 17.314")
630 mm
(24-314")
* Manufacturer reserves the right to change specifications without notice.
* Note: Specifications may differ from country to country.

IM PO RTANT
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.
IO.
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 onhandles when power is on.
Do not attempt to remove cut material nor hold material to be cut when
blades are moving. Make sure trimmer is switchedoff and unplugged when
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 lessthan rating of trimmer. Do not use damaged extension
cords. Inspect cords periodicallyandreplace if damaged. Do notabusecord.
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 switchis off. Don‘t carry trimmer with finger on
switch.
AVOID LOCKING TRIMMER SWITCH ON
- Never attempt totape, wire or
fasten the switches so as to stay in the ON position.
DISCONNECT(UNPLUG)TRIMMER FROMPOWER SUPPLY
- When not in
use. Before servicing, cleaning, and the like.

Total Length of Cord in Feet 25
50 100
AWG Size of Cord
18 1 16 16
-
I
Contact Makita Authorized or Factory Service Center if a proper extension
cord cannot be found.
15. Inspect blades periodically and replace before operation if damaged.
16. Hold the tool firmly with both hands.
17. Do not leave the tool running. Operate the tool only when hand-held.
18. Attention! Do not expose this tool to rain.
19. Be cautious not to cut through the supply cable while trimming. Pull plug
20. When not in use, be sure to cover the blades with the blade guard.
The tool must not be left outdoors and
it must not be used when wet.
immediately if the supply cable be damaged or cut.
150
14
VOLTAGE WARNING: Beforeconnectingthe tool toa 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

Installinggrip
Attach the grip onto the grooves in the
tool side and secure with the two screws.
WARN
I NG :
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-offbutton
in and pull the trigger.
Release the trigger
to stop.
Power cord
I
1 I Cord connector
1
Extension cord
CAUTION :
Before plugging in the tool, always check to see that the trigger switch actuates properly
and returns tothe
“OFF” position when 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.
I
Sturdy gloves
5

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

MAINTENANCE
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 inthe proper and intended manner.
0 Blade cover
Part No. 414247-4
Part No. 414248-2
(For model UH4510A)
(For model UH6310A)
Hook
Part No. 158024- 1
Shear blade assembly
Part No. 125008-4
Part
No. 125009-2
(For model UH4510A)
(For model UH6310A)
8

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

MODEL UH4510A. UH6310A
I;,'," AtD DESCRIPTION
Mar -13-'8Y US
"",M DESCRIPTION
MACHINE
~
1
2
3
4
5
6
7
8
Y
11
13
14
15
16
17
18
19
20
21
1
1
1
1
1
1
2
1
1
1
1
1
1
1
I
1
1
1
1
-
Housing Sel (With Item 261
Switch
Cord Guard
Cord
Strain Relief
Pan Head Screw M4x18 (With Washerl
Switch Lever
Lock Off Button
Compression Spring 3
P," 10
Flat Washer 10
Gear 68
Crank
Ball Bearing 608L8
Terminal
Base
Fdd
ARMATURE ASSEMBLY
(With
Item 18 & 21 231
Sponge Seal
Sponge Seal
MACHINE
~
22
23
24
25
26
27
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
Bail Bearing 6OYLB
Receptacle Sleeve
Carbon Brush
Housing Sei fWith lfem 11
Tapping Screw 4x20
Name
Plate
Pan Head Screw M5x55 [With Washerl
Grip 27
Pan Head Screw M5x20 lWith Washerl
SHEAR BLADE ASSEMBLY
Pan Head Screw M5x16 IWNth Washerl
Pan Head Screw M4xl2
Guard
Hex
Nut M4- 10
Bottom Cover
Tappmg
Screw 4x14
Note The Switch and other
part specifications may differ from countrv to countrv
10

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 ServiceCenters. 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:
0 repairs are required because of normal wear and tear:
0 The tool has been abused, misused or improperly maintained;
0 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 THETERM OFTHIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,
AFTER THE ONE-YEARTERM
OF THISWARRANTY.
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 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.
P
-€hutaK - wan&b.Ltd.
11-8,3-chome, Sumiyoshi-cho. Anjo, Aichi 446, Japan
PRINTED IN JAPAN
1990 - 3 - N
883664-065