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T ECHNICAL INFORMATION
Models No. UH4050, UH4850, UH5550, UH6350
PRODUCT
P1/7
Description 400mm, 480mm, 550mm, 630mm Hedge Trimmer W
CONCEPTION AND MAIN APPLICATIONS L
These new Hedge Trimmers are optimum for tough trimming works
thanks to the more precise engagement of shear blade assembly H
with crank section.
And the shear blades can be changed quickly without disassembling
the machine.
Model No. UH4050 UH4850 UH5550 UH6350
mm 780 850 928 995
Length (L)
( " ) 30-3/4 33-1/2 36-1/2 39-1/8
mm 200
Height (H)
(") 7-7/8
mm 215
Width (W) ( " )
8-1/2
Specification
Continuous Rating (W)
Voltage (V) Current (A) Cycle (Hz) Max. Output(W)
Input Output
120 4.6 50 / 60 500 230 400
220 2.4 50 / 60 500 230 400
230 2.3 50 / 60 500 230 400
240 2.2 50 / 60 500 230 400
Model No. UH4050 UH4850 UH5550 UH6350
No load speed :spm. (min-1) 1,500
Blade length Other countries 400 (15-3/4) 480 (18-7/8) 550 (21-5/8) 630 (24-3/4)
: mm ( " ) U.S.A. / Canada
450 (17-3/4) 520 (20-1/2)
Electric brake Yes
Clutch Yes
Cord length : m ( ft ) 0.3 (0.98)
Net weight :Kg (lbs ) 3.3 (7.3) 3.4 (7.5) 3.5 (7.7) 3.6 (7.9)
Standard equipment
* Blade cover ................... 1 pc.
< Note > The standard equipment for the tool shown may differ from country to country.
Features and benefits P2/7
Two-hand Operation Switch
and Electric Brake Feature
for Absolute Safety
Double-sided, The blades start moving only when
Double Reciprocating Blades both of the two switches are pressed.
for Sharp Trimming And, as soon as one of them is
released, the blades stop quickly.
(within 0.5 sec.just after switched off.)
Strain Reliever
for Extension Cord
Prevents extension cord from
accidentally falling out of the
plug of power supply cord.
Easy-to-Replace Shear Blades
The blades can be changed only by
loosening the screws on the bottom
of the machine. Clutch for Safety
Protects the gears and the blades
The Spacer for Precise Engagement when the blades are blocked by
of Shear Blades with Crank Section foreign bodies such as thick
The spacer prevents the blades from being branches, stones, etc.
deformed and getting out of position.
Comparison of products
Model No. Makita Competitor A Competitor B
UH4050 UH4850 A-1 A-2 B-1 B-2
Specifications UH5550 UH6350 A-3 B-3 B-4
Rated power Input ( W ) 500 500 420
Rated Amps on 120V ( A ) 4.6
Strokes per min. : spm. = min.-1 1,500 1,600 1,500
Length of stroke : mm ( " ) 18 (11/16) 18 (11/16) 18 (11/16)
400 (15-3/4) 480 (18-7/8)
other countries
Effective cutting 550 (21-5/8) 630 (24-3/4) 450 (17-3/4) 550 (21-5/8) 400 (15-3/4) 480 (18-7/8)
length : mm ( " ) 650 (25-1/2) 550 (21-5/8) 600 (23-5/8)
U.S.A. / Canada
450 (17-3/4) 520 (20-1/2)
Space between
teeth: mm (") 21 (13/16) 20 (13/16) 22 (7/8)
Clutch Yes Yes Yes
Protection from electric shock by double insulation by double insulation by double insulation
Cord length : m ( ft ) 0.3 ( 0.98 ) 0.2 ( 0.7 ) 0.3 ( 1.0 )
3.2 (7.1) 3.3 (7.3) 3.3 (7.3) 3.5 (7.7) 3.1 (6.8) 3.2 (7.1)
Net weight : Kg (lbs)
3.4 (7.5) 3.5 (7.7) 3.7 (8.2) 3.3 (7.3) 3.3 (7.3)
Standard equipment Blade cover Blade cover Blade cover
Repair P3/7
< 1 > Lubrication
Apply the MAKITA grease N.No.1 to the following parts, when repairing or maintaining.
1 The gear installing portion of motor housing : approx. 6g
2 The teeth of helical gear : approx. 3g
3 Crank : approx. 1g
4 Pin 8 : approx. 1g
2
1
3
Fig. 1
4
< 2 > Disassembling shear blade assembly
1. Unscrew pan head screw M5 x 18, and disassemble under cover by sliding it in the direction of arrow.
as illustrated in Fig. 2.
(Only for the machine for USA. and Canada)
Under cover
Pan head screw M5 x 18
Fig. 2
2. Unscrew 6 pan head screws marked with arrow, and disassemble shear blade assembly from motor housing
as illustrated in Fig. 3.
< Note > In case may be, gear assembly 65 can be disassembled together with shear blade assembly in this process.
Be careful, not to give damage on gear assembly 65 by falling it down.
Shear blade assembly
6 arrows are carved also
on the bottom side.
Pan head screws
Fig. 3
Repair P4/7
< 3 > Assembling shear blade assembly
Shear blade A
Shear blade B
Guide plate
Spacer
Fig. 4
1 Align the holes of shear blade A and B with the same
of guide plate.
2 Insert spacer between shear blade A and B with aligning its holes with
the same of guide plate.
For easily assembling spacer, it is recommended to insert pan head screws into
the screw holes of guide plate in advance.
3 Turn crank until its position comes to right angle against the joint line of housing R and L, as illustrated in Fig.5.
Otherwise the crank can not engage with the elliptic holes of shear blade A and B.
90