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T
ECHNICAL INFORMATION
Model No.
Description
C
ONCEPT AND MAIN APPLICATIONS
The subject models are the successors of UCxx30A series*
The chain oil pump is improved to realize more efficient oiling.
UCxx51A series*
have an improved toolless tension adjustment for easier
2
handling.
UCxx50A series*
have newly designed nut-fix style sprocket cover.
3
Other main features of the subject models are as follows;
• Adjustable automatic chain oiling
• Soft start for reducing start-up reaction
• Current limiter protects motor from heat damage
• Large separate-type metal spike bumper
*
the predecessors of UC3030A, UC3530A, UC4030A, UC4530A
1
*
UC3051A, UC3551A, UC4051A, UC4551A
2
*
UC3050A, UC3550A, UC4050A, UC4550A
3
S
pecification
Voltage (V)
110
120
220
230
240
Model No.
Chain speed per sec.:
m/s (m/min.)[ft/min.]
length: mm (")
Guide bar
Type
Max. cutting capacity: mm (")
Type
Saw chain
Gauge
Pitch
Chain brake
Soft start
Torque limiter
Chain oil tank capacity: mL (US oz)
Automatic chain oiling
Protection from electric shock
Power supply cord: m (ft)
Weight according to
EPTA-Procedure 01/2003*
*
: with 91PX Saw chain and Guide bar
5
S
tandard equipment
Saw chain (300mm: 91PX-46E,
350mm: 91PX-52E,
400mm: 91PX-56E,
450mm: 91PX-62E)
Guide bar (300mm: Double guard 12",
350mm: Double guard 14",
400mm: Double guard 16",
450mm: Double guard 18")
Note: The standard equipment may vary by country or model variation.
UC3050A, UC3550A, UC4050A, UC4550A
UC3051A, UC3551A, UC4051A, UC4551A
Chain saw
Current (A)
Cycle (Hz)
15
50-60
14.5
50-60
8.6
50-60
9.2
50-60
8.8
50-60
UC3050A/ UC3051A UC3550A/ UC3551A UC4050A/ UC4051A UC4550A/ UC4551A
300 (12)
260 (10-1/4)
91PX-46E
UK: 10 (32.8)/ Germany, Sweden, Reunion, China, Taiwan, Vietnam: 5 (16.4)/
5.4 (11.9)
: kg
5
Chain cover
Hook complete
Wrench*
6
Round file*
,*
7
*
: for UC3050A only
6
*
: for UC4050AKX only
7
*
: for UC3551AK only
8
.
1
Continuous Rating (W)
Input
1,570
1,800
2,000
2,000
14.5 (870) [2,900]
350 (14)
Double guard
320 (12-5/8)
91PX-52E
91PX: 1.3mm (0.050")
Electric brake
200 (6.8)
Double insulation
Singapore, India: 2.5 (8.2)/ Other countries: 0.3 (0.98)
5.5 (12.1)
O
Gloves*
Saw chain (91PX) (300/ 350/ 400/ 450mm)
7
Goggles*
Guide bar (Double guard) (300/ 350/ 400/ 450mm)
7
Chain oil set*
*
Chain cover
7,
8
Steel case*
*
Chain oil
8
7,
8
for ASC & Sales Shop
W
L
Illustration above is UC3051A.
Dimensions*
Length (L)
UCxx50A
Width (W)
UCxx51A
Height (H)
*
: with Spike bumper, without
4
Guide bar
Max. Output (W)
Output
800
900
1,000
1,100
1,100
400 (16)
355 (14)
91PX-56E
3/8"
Yes
Yes
Yes
5.6/ 5.6
(12.2/ 12.3)
ptional accessories
OFFICIAL USE
PRODUCT
P 1/ 13
H
: mm (")
4
505 (19-7/8)
196 (7-3/4)
200 (7-7/8)
220 (8-5/8)
1,500
1,800
2,200
2,200
2,200
450 (18)
415 (16-3/8)
91PX-62E
5.7/ 5.7
(12.4/ 12.5)
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Related Manuals for Makita UC3050A
Summary of Contents for Makita UC3050A
- Page 1 50-60 2,000 1,100 2,200 50-60 2,000 1,100 2,200 Model No. UC3050A/ UC3051A UC3550A/ UC3551A UC4050A/ UC4051A UC4550A/ UC4551A Chain speed per sec.: 14.5 (870) [2,900] m/s (m/min.)[ft/min.] length: mm (") 300 (12) 350 (14) 400 (16) 450 (18) Guide bar...
-
Page 2: Necessary Repairing Tools
P 2/ 13 epair CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”. [1] NECESSARY REPAIRING TOOLS Use for Code No. Description 1R003 Retaining ring pliers ST-2N making Link plate free when disassembling Brake section 1R269 Bearing extractor removing Ball bearings 1R291 Retaining ring S &... - Page 3 P 3/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3]-1. Oil pump complete, Front hand guard complete DISASSEMBLING Note: Unplug the machine from the power source. Remove Saw chain and Guide bar from the machine for safety before repair/ maintenance. Remove Chain oil from Oil tank in advance. (1) Disassemble Gear housing cover side after removing Sprocket cover, Front handle and Spike bumper as drawn in Fig.
- Page 4 P 4/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3]-1. Oil pump, Front guard (cont.) DISASSEMBLING (2) Remove Oil pump complete as drawn in Fig. 3. Fig. 3 1. Remove Brush holder caps and Carbon brushes 2. Separate Motor housing from Gear housing. from the machine.
- Page 5 P 5/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3]-1. Oil pump complete, Front hand guard complete (cont.) ASSEMBLING (1) Assemble Oil pump to Gear housing as drawn in Fig. 4. Fig. 4 Fit two pins of Oil pump complete into the cavities of Gear housing. Then, tighten Oil pump complete with 4x18 Tapping screw.
- Page 6 P 6/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature, Spiral bevel gear 12, Spiral bevel gear 37 DISASSEMBLING (1) Disassemble Sprocket cover, Front handle and Spike bumper as drawn in Fig. 2. (2) Disassemble Armature and Spiral bevel gear 12 as drawn in Fig. 7. Fig.
- Page 7 P 7/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3]-2. Armature, Spiral bevel gear 12, Spiral bevel gear 37 (cont.) DISASSEMBLING (5) Disassemble Spiral bevel gear 37 as drawn in Fig. 9. Fig. 9 Ball bearing 606ZZ 1. Remove Ball bearing 606ZZ with 1R269. Retaining ring S-10 2.
-
Page 8: Brake Mechanism
P 8/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Brake mechanism DISASSEMBLING (1) If Front hand guard is damaged, replace it with a new one as drawn in Fig. 2. Note: Be careful not to lose Compression spring 6. (2) Disassemble Brake mechanism as drawn in Fig. 10. Fig. - Page 9 P 9/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3]-3. Brake mechanism (cont.) DISASSEMBLING (5) Disassemble Brake mechanism as drawn in Fig. 11. Fig. 11 Link plate complete “Chain brake activated” position 1. Remove Bearing housing from Gear housing. Note: Be sure that Link plate complete is in “Saw chain brake activated”...
- Page 10 P 10/ 13 epair [3] DISASSEMBLY/ASSEMBLY [3]-3. Brake mechanism (cont.) ASSEMBLING (1) Assemble Brake band to Bearing housing. (Refer to the bottom right illustration in Fig. 11 of page 9). (2) Pass Compression spring 9 through Link plate complete, and mount the plate to Bearing housing as drawn in Fig. 12. Fig.
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Page 11: Circuit Diagram
P 11/ 13 ircuit diagram Fig. D-1 Field view from Handle set (Rear side) Gear housing Sprocket cover side cover side white Noise suppressor* black Switch Field white white orange white brown* yellow Power supply Choke coil* cord orange blue* white orange orange... -
Page 12: Wiring Diagram
P 12/ 13 iring diagram Fig. D-2 Wiring of Field’s lead wires in Motor housing 1. Assemble Field to Motor housing while facing 2. Pull out Field’s lead wires (yellow, white, orange) the following lead wires to Switch for Kickback through the holes of Motor housing as shown below. - Page 13 P 13/ 13 Fig. D-3 Wiring in Handle set Lead wire holder B Lead wire holder A Main switch Rib I Rib H Put Field’s Lead wire Without piling on the other (yellow) into this lead wires, fix Lead wires Lead wire holder in Lead wire holder A between Lead wire...