Makita Caulking Gun BCG180 User Manual

ECHNICAL INFORMATION  
PRODUCT  
P 1/ 11  
T
Models No.  
Description  
BCG140 / BCG180 (LXGC01*1)  
L
Cordless Caulking Gun  
*1 Model number for North and Central American countries  
H
W
CONCEPT AND MAIN APPLICATIONS  
Model BCG140 and BCG180 are Cordless Caulking Guns  
powered by 14.4V/18V Li-ion battery.  
(The image above is BCG180  
with 300ml size holder and Battery BL1815.)  
They are compatible with the following sealants by changing  
Holder and Piston:  
300ml/ 600ml cartridge  
Sausage pack  
Bulk sealant  
Their other main features are:  
Compact and lightweight design  
High work efficiency  
Variable speed control by dial and trigger switch  
for constant bead of sealant  
Dimensions: mm (")  
Model No.  
Length (L) 404 (15-7/8)*2, 538 (21-1/4)*3  
Width (W) 108 (4-1/4)  
BCG140  
BCG180  
Height (H) 264 (10-3/8)*4/ 281 (11-1/8)*5  
*2 with 300ml size holder  
*3 with 600ml size holder  
*4 with 1.3Ah Li-ion battery of BL1415 or BL1815  
*5 with 3.0Ah Li-ion battery of BL1430 or BL1830  
Anti-drip function that stops excess sealant from oozing out  
just upon release of the switch trigger  
Specification  
Specification  
Standard equipment  
Holder for 300ml type model  
Model  
BCG140  
BCG180  
Holder for 600ml type model  
Holder joint for 300ml type model  
Holder joint for 600ml type model  
Piston for cartridge  
Piston for sausage pack  
Piston for bulk sealant  
Rubber ring for sausage pack  
Rubber ring for bulk sealant  
Nozzle for sausage pack  
Cell  
Li-ion  
Voltage: V  
14.4  
18  
Battery Capacity: Ah  
1.3/ 3.0  
19/ 44  
1.3 (1.5*5)/ 3.0  
24 (27*5)/ 54  
Energy capacity: Wh  
Charging time: min.  
Max output: W  
15, 22 with DC18RC  
130 150  
Max pushing force: N (lbs)  
5,000 (1,100)  
No load speed: mm/sec. (in/min.)  
0 - 28 (0 - 66)  
Nozzle for bulk sealant  
Plastic carrying case or Tool bag  
(for some countries only)  
300ml holder model  
600ml holder model  
300ml holder model  
600ml holder model  
by trigger  
214 (8-3/4)  
Stroke length:  
mm (")  
350 (13-3/4)  
Note: The standard equipment  
for the tool shown above  
may vary by country.  
Cartridge  
Compatible  
sealant size  
Cartridge, Sausage pack, Bulk sealant  
Yes  
Yes  
Variable speed control  
by dial  
Optional accessories  
Li-ion battery BL1415 (for BCG140)  
Li-ion battery BL1430 (for BCG140)  
Li-ion battery BL1815 (for BCG180)  
Li-ion battery BL1830 (for BCG180)  
Fast charger DC18RC  
Charger DC18SD  
Charger DC24SC  
Automotive charger DC18SE  
Holder sets  
Continuous run time (approx.) on  
a single full battery charge with  
300ml cartridge: cartridge quantity  
180/ 410  
210/ 500  
Anti-drip function  
Overload protection function  
Rubberized soft grip  
Trigger lock  
Yes  
Yes  
Yes  
Yes  
Yes  
LED job light  
Weight according to  
2.1/ 2.2 (4.6/ 4.9)*6, 2.1/ 2.3 (4.7/ 5.1)*6,  
Pistons  
EPTA-Procedure 01/2003: kg (lbs)  
2.5/ 2.6 (5.4/ 5.8)*7 2.5/ 2.7 (5.5/ 6.0)*7  
Rubber rings  
Nozzles  
Rubber seal  
*5 for some countries only  
*6 with 300ml size holder  
*7 with 600ml size holder  
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P 2/ 11  
Repair  
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.  
[1] NECESSARY REPAIRING TOOLS  
Code No.  
1R026  
1R027  
1R029  
1R031  
1R258  
Description  
Bearing Setting Pipe 16-8.2  
Bearing Setting Pipe 18-10.2  
Bearing Setting Pipe 23-15.2  
Bearing Setting Pipe 28-20.2  
V Block  
Use for  
removing Spur gear 10  
holding Carrier A complete when mounting 9 pcs. of Pin 3  
removing Ball bearing 6803LLU  
separating Spur gear 10 from Ball bearing 6806LLU  
setting Ball bearing 6806LLU when removing Spur gear 10  
[2] LUBRICATION  
Apply Seal lubricant No.101 to the following portions designated with the black triangle to protect  
parts and product from unusual abrasion.  
Item No.  
Description  
Portion to lubricate  
Amount  
approx. 1.5 g  
a little  
Internal gear 48  
Teeth portion  
28  
32  
39  
41  
Carrier A complete  
Spur gear 9C complete  
Spur gear 19A  
Pin (shaft) portion for accepting Spur gear 19B  
Drum portion where Spur gear 10 contacts  
Teeth portion  
a little  
a little  
a: Pin (shaft) portion for accepting Spur gear 19A  
b: Drum portion  
approx. 1.0 g  
approx. 1.0 g  
approx. 1.0 g  
Spur gear 9B complete  
Spur gear 19A  
42  
43  
Teeth portion  
Fig. 1  
Gear Assembly  
Gear housing cover  
43  
42  
41  
39  
a
b
Flat washer 12  
Gear housing  
Spur gear 10  
Internal gear 48  
Spacer  
Plate 23  
28  
32  
Spur gear 19B  
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P 3/ 11  
Repair  
[3] DISASSEMBLY/ASSEMBLY  
[3] -1. Rack Complete  
DISASSEMBLING  
Disassemble Rack complete as drawn in Fig. 2.  
Fig. 2  
1. Disassemble Holder complete  
by turning counterclockwise.  
2. Disassemble Piston complete by  
unscrewing M3x18 Pan head screw.  
3. Pull out Rack complete.  
M3x18 Pan head screw  
Holder A or B complete  
ASSEMBLING  
Piston A, B or C complete  
Rack 42 or 64 complete  
Assemble by reversing the disassembly procedure. (Refer to Fig. 2)  
[3] -2. Motor Complete, Gear Assembly  
(1) Disassemble the drive section (Gear assembly, Motor complete) as drawn in Fig. 3.  
Fig. 3  
1. Loosen M5x16 Pan head screws, and remove Plate  
and Holder joint.  
2. Loosen 9 pcs. of 3x16 Tapping screw, and  
remove Housing (R) complete.  
M5x16  
Plate  
Pan head  
screw (4 pcs.)  
Housing (R)  
complete  
Gear assembly  
Motor  
Holder joint A or B complete  
complete  
Compression  
spring 6  
6. Separate drive section (Motor complete and  
Gear assembly) from Housing (L) complete.  
And disconnect receptacles from DC motor.  
Housing (L) complete  
Receptacles  
Note: Hold Compression spring 6 with your finger,  
or it will come off.  
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P 4/ 11  
Repair  
[3] DISASSEMBLY/ASSEMBLY  
[3] -2. Motor Complete, Gear Assembly (cont.)  
DISASSEMBLING  
(2) Remove Motor complete from Gear assembly as drawn in Fig. 4.  
Fig. 4  
3. Remove Motor complete from  
Gear assembly by loosening  
three 3x16 Tapping screws.  
1. Remove Synchro belt  
4-176.  
2. Remove Spur gear 9A complete from  
Gear assembly by levering up with  
Slotted screwdrivers.  
Note: Spur gear 9A complete is assembled  
at the factory, so do not disassemble it.  
Synchro belt 4-176  
Spur gear 9A complete  
Motor complete  
Gear assembly  
Slotted screwdrivers  
(3) Disassemble component parts of Gear assembly from Gear housing as drawn in Fig. 5.  
Fig. 5  
1. Remove Flat washer 12, Spur gear 19A (6 pcs.),  
Spur gear 9B complete and Internal gear 48 from  
Gear housing as shown below.  
2. Remove Stop ring E-4 from  
Spur gear 9C complete.  
Internal gear 48  
Spur gear 19A (6 pcs.)  
Flat washer 12  
Gear housing  
Flat  
washer 5  
Flat washer 5  
Spur gear 9C  
complete  
Stop ring E-4  
Spur gear 9B complete  
3. Remove the following pars as shown below.  
Spacer with  
Oil seal 30  
Flat washer 5  
Carrier A complete  
Pin 3 ( 9 pcs.)  
Gear housing  
Spur gear 9C  
complete  
Carrier B  
Internal gear 48  
Plate 23  
Spur gear 19B ( 3 pcs.)  
Note: Pin 3 comes off easily,  
so be careful not to lose them.  
Note: Spur gear 10 and Ball bearings  
still remain in Gear case  
in this step.  
4. Remove Oil seal 30 from the groove  
on Spacer with a slotted screwdriver.  
Oil seal 30  
Spacer  
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P 5/ 11  
Repair  
[3] DISASSEMBLY/ASSEMBLY  
[3] -2. Motor Complete, Gear Assembly (cont.)  
DISASSEMBLING  
(4) Remove Spur gear 10 and Ball bearings from Gear housing as drawn in Fig. 6.  
Fig. 6  
2. Spur gear 10 is removed together with  
Ball bearing 6806LLU.  
1. Set 1R026 on Spur gear 10 and press 1R026 with  
arbor press to remove Spur gear 10.  
Spur gear 10  
Ball bearing 6806LLU  
Arbor press  
Spur gear 10  
1R026  
Magnet  
Note: Be sure to prevent foreign materials  
from sticking to Magnet because it has  
strong magnetic force.  
3. Set Ball bearing 6806LLU  
with Spur gear 10 into 1R258.  
4. Set 1R031 onto Spur gear 10 and  
press the gear with Arbor press.  
5. Spur gear 10 is removed  
from Ball bearing 6806LLU.  
Ball bearing 6806LLU  
with Spur gear 10  
Ball bearing 6806LLU  
1R031  
1R258  
Spur gear 10  
(5) Ball bearing 6803LLU still remains in Gear housing in the step of Fig. 6. This ball bearing can be removed  
as drawn in Fig. 7.  
Fig. 7  
1. Set 1R029 on Ball bearing 6803LLU and  
press the bearing with Arbor press to remove it.  
2. The component parts of Spur gear 10 section  
are removed as shown below.  
Ball bearing 6803LLU,  
removed in the left  
Ball bearing  
6803LLU  
1R029  
Ball bearing 6806LLU,  
removed in Fig. 6  
Spur gear 10,  
removed in Fig. 6  
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P 6/ 11  
Repair  
[3] DISASSEMBLY/ASSEMBLY  
[3] -2. Motor Complete, Gear Assembly (cont.)  
ASSEMBLING  
(1) Assemble Ball bearing 6803LLU to Gear housing. Refer to the drawing on the left in Fig. 7.  
(2) Mount Ball bearing 6806LLU to Spur gear 10. Refer to the drawing on the bottom in Fig. 6.  
(3) Assemble the Spur gear 10 section to Gear housing. Refer to the drawing on the upper right in Fig. 6.  
(4) Mount Oil seal 30 to Spacer. Refer to the drawing on the bottom in Fig. 5.  
(5) Assemble Plate 23, Spacer, Internal gear 48 and Spur gear 9C complete to Gear housing as drawn in Fig. 8.  
Fig. 8  
Note: Assemble Spacer with the convex side  
of it facing to Internal gear 48.  
Gear housing  
Spacer  
Oil seal 30  
Spur gear 9C  
complete  
Internal gear 48  
Plate 23  
(6) Assemble the parts on the Flat washer 5 side to Gear housing as drawn in Fig. 9.  
Fig. 9  
2. While holding Internal gear 48  
with your fingers, assemble Gear housing  
to Carrier A complete section.  
1. Set Carrier A complete on 1R027, and  
assemble Carrier B and 9 pcs. of Pin 3.  
Pin 3 (9 pcs.)  
Carrier B  
Carrier A complete  
1R027  
Gear housing  
< Note for Assembling of Pin 3 >  
Do not lubricate on Pin 3.  
And, be careful that Pin 3 easily falls off.  
3. Assemble Spur gear 19B to the Pins of Carrier A complete.  
And then, mount Flat washer 5 to Gear housing.  
4. Assemble Stop ring E-4 to the shaft  
on Spur gear 9C complete.  
Spur gear 9C complete  
Flat washer 5  
Spur gear 19B  
( 3 pcs.)  
Stop ring E-4  
Pins of Carrier  
A complete  
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P 7/ 11  
Repair  
[3] DISASSEMBLY/ASSEMBLY  
[3] -2. Motor Complete, Gear Assembly (cont.)  
ASSEMBLING  
(7) Assemble the parts on the Flat washer 12 side to Gear housing as drawn in Fig. 10.  
Fig. 10  
1. Assemble the other Internal  
gear 48. And then, mount 3 pcs.  
of Spur gear 19A to the three  
pins of Spur gear 9C complete.  
2. Assemble Spur gear 9B complete.  
And then, mount the other 3 pcs. of  
Spur gear 19A to the pins of Spur  
gear 9B complete.  
3. Assemble Flat washer 12  
to Gear housing.  
And make sure that it fits  
to Gear housing.  
Spur gear 9B  
complete  
Flat washer 12  
Spur gear 19A  
Internal gear 48  
Spur gear 19A  
Spur gear 9C  
complete  
4. Assemble Motor complete with  
three 3x16 Tapping screws.  
5. Assemble Spur gear 9A complete and Synchro  
belt 4-176.  
Synchro belt 4-176  
Spur gear 9A  
complete  
Motor complete  
Gear assembly  
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P 8/ 11  
Repair  
[3] DISASSEMBLY/ASSEMBLY  
[3] -2. Motor Complete, Gear Assembly (cont.)  
ASSEMBLING  
(8) Assemble the driving section (Gear assembly and Motor complete) to Housing (L) complete as drawn in Fig. 11.  
Fig. 11  
2. Fit Compression spring 6 to the rib on  
Housing (L) complete with pressing  
it toward Magnet.  
1. Mount Compression spring 6 to Magnet  
in Gear housing.  
Compression spring 6  
Compression spring 6  
Rib  
Magnet  
Magnet  
3. Gear assembly is pushed by Compression spring 6  
toward Sub controller, and it may not be fitted  
4. Make sure that Compression spring 6  
fits inside the space.  
within the rib on Housing (L) complete at the motor  
portion. So, push Gear assembly toward the direction  
of the black arrow shown below to set it within the rib.  
Compression  
spring 6  
Rib  
Sub controller  
(9) When replacing the whole Gear assembly, use new Gear assembly as drawn in Fig. 12.  
Fig. 12  
1. Remove three 3x16 Tapping screws and Gear housing cover from Gear assembly.  
2. Assemble Motor complete with Gear housing cover to new Gear assembly  
with three 3x16 Tapping screws.  
Note: Scrap Removed Gear housing cover and three 3x16 Tapping screws.  
Gear housing cover  
(the component of Motor complete)  
3x16 Tapping screw (3 pcs.)  
Main body of  
Gear assembly  
Motor complete  
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P 9/ 11  
Circuit diagram  
Fig. D-1  
Color index of lead wires' sheath  
Blue  
Black  
Gray  
Red  
White  
Yellow  
Sub controller  
Warning lamp  
Dial  
Red point mark  
DC Motor  
Switch  
DC motor has to be mounted so  
that its Red point mark is located  
to Sub controller side.  
LED Job light  
Controller  
Terminal  
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P 10/ 11  
Wiring diagram  
Fig. D-2  
Wiring of DC motor’s Lead wires  
(Viewed from Housing (L) side)  
Wire connecting  
portions  
Flag terminal  
Gear assembly  
Red point mark  
Flag terminals have to be connected so that  
their wire connecting portions are faced  
toward Gear assembly side.  
DC motor  
Lead wires have to be  
fixed within Lead wire  
holder.  
Flag terminal  
Fig. D-3  
Wiring of Lead wires of Sub Controller  
(Viewed from Housing (R) side)  
Sub controller  
Inner wall  
Rib  
Lead wires of Sub controller have to be  
routed between Ribs and the inner wall of  
Housing (L) complete.  
Housing set (L)  
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P 11/ 11  
Wiring diagram  
Fig. D-4  
Wiring in Housing set (L)  
(Viewed from Housing (R) side)  
Sub controller  
Line filter  
Put Line filter in this place.  
(when using Line filter)  
Route Sub controller’s lead  
wires (black, white, red, blue)  
and Controller’s lead wires to  
DC Motor (black, red)  
between Ribs A and B.  
Rib A  
Rib B  
Switch  
Route Sub controller’s lead wires  
(black, white, red, blue) through  
this Lead wire holder.  
Lead wire holder  
Route Controller’s lead wires to  
DC Motor (black, red) through  
this Lead wire holder.  
Connector  
Route Sub controller’s lead wires  
(black, white, red, blue) through  
this Lead wire holder.  
Rib C  
Do not route Connector’s  
lead wires on Rib C.  
Controller  
Terminal  
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