Makita BPB180 Manual

Model No.
Description
PRODUCT
CONCEPT AND MAIN APPLICATIONS
P 1 / 10
Specification
Dimensions: mm (")
Width (W)
Height (H)
Length (L) 523 (20-5/8)
231 (9-1/8)
313 (12-3/8)
BPB180
Cordless Portable Band Saw
Model BPB180 has been developed as a cordless portable band saw
powered by 18V/ 3.0Ah Li-ion battery.
Features extremely lightweight design, yet still ensures high performance
that is backed by the same technology as applied to Model 2107F,
Makita AC portable band saw.
Standard equipment
Optional accessories
Note: The standard equipment for the tool shown above may differ from country to country.
HSS bimetal band saw blade
(18 teeth per inch) .................................. 1
Battery BL1830 ..................................... 2
Battery charger DC18SC ....................... 1
Plastic carrying case .............................. 1
Hex wrench 4 ......................................... 1
Charger DC18SC
Charger DC24SA
Charger DC24SC
Li-ion battery BL1830
Carbon steel band saw blade (14, 18, 24 teeth per inch)
HSS bimetal band saw blade (14, 18, 24 teeth per inch)
Cutting wax
Battery
Variable speed control dial
Blade speed: m/s (ft/min)
Type
Voltage: V
Capacity: Ah
Li-ion
18
3.0
Yes
Net weight [with blade]: kg (lbs) 6.4 (14.1)
Overload protector Yes
1.4 -2.7 (275 - 530)
Max output (W) 330
L
W
H
Square pipe (width x height)
Length
Width
Height
Cutting capacity:
mm (")
Blade size:
mm (")
Round pipe (diameter)
120 x 120 (4-3/4 x 4-3/4)
13 (1/2)
0.5 (0.02)
1,140 (44-7/8)
120 (4-3/4)
TECHNICAL INFORMATION
This new product is available in the following variations.
BPB180SFE
BPB180 BL1830
(Li-ion 3.0Ah) DC18SC
Model No. type quantity Charger Country
2Other countries
USA, Canada, Mexico, Panama
Battery

P 2 / 10
Repair
[2] LUBRICATION
Apply Makita grease N. No.1 to the following portions designated with the black triangle to protect
parts and product from unusual abrasion.
[1] NECESSARY REPAIRING TOOLS
CAUTION: Remove the band saw blade and battery from the machine for safety
before repair/ maintenance !
Item No. Description Purpose
1R005 Retaining Ring R Pliers ST-2 Disassembling / Assembling Retaining Ring R-47
1R139 Drill Chuck Extractor Supporting helical gear 45, when removing spiral bevel gear 11
1R217 Ring 22 Disassembling tension plate from slide plate
1R269 Bearing Extractor Removing ball bearing 608LLB
1R282 Round Bar for Arbor 8-50 Disassembling spiral bevel gear 11 from helical gear 45
1R291 Retaining Ring S and R Pliers Removing retaining ring S-15 from spiral bevel gear 11
52 Rubber Tire
54 Gear Complete
Its inside where wheel cover contacts
Slide Plate Whole surface on which tension plate slides.
Its teeth portion for smooth engaging with spur gear 12
Apply grease approx. 15g.
79 Spiral Bevel Gear 29 Its teeth portion for smooth engaging with spiral bevel gear 11
Apply grease approx. 10g.
Its teeth portion for smooth engaging with armature's gear
Apply grease approx. 5g.
85
20
20
Helical Gear 45
Position
No. Parts item Portion to be lubricated
Rear Wheel Cover
Front Wheel Cover
Armature
Tension Plate
Compression Spring 11
Armature's
Gear
85
Spiral Bevel Gear 11
79
54
52
Spur Gear 12
Fig. 1

Tapping Screw
Bind CT4x20 :4 pcs.
Saw Guard Holder
Saw Guard
Saw Guard Holder
P 3 / 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Armature
Fig. 2
Fig. 3 Fig. 4
Brush Holder Cap
Gear Housing
Rear Wheel Cover
1. Remove brush holder cap and carbon brush. (Fig. 2)
2. Disassemble saw guard and saw guard holder by unscrewing four bind CT4x20 tapping screws. (Fig. 2)
3. Disassemble rear wheel cover together with gear housing by unscrewing the following screws. (Fig. 2)
* Tapping Screw 5x25: 2 pcs. for securing handle to rear wheel cover
4. Striking gear housing with plastic hammer, disassemble gear housing and rear wheel cover. Armature can be
removed from motor section. (Fig. 3)
5. Striking gear housing with plastic hammer, remove armature from it. (Fig. 4)
Carbon Brush
Tapping Screw
4x40: 2 pcs.
Tapping Screw
5x25: 2 pcs.
Tapping Screw
4x55: 2 pcs.
Do not remove this tapping
screw 4x40 in this step.
for securing rear wheel cover and gear housing to motor section
* Tapping Screw 4x40: 2 pcs.
* Tapping Screw 4x55: 2 pcs.
Gear Housing
Armature
Rear Wheel Cover
Gear Housing
DISASSEMBLING
ASSEMBLING
Do the reverse step of disassembling.
Armature

P 4 / 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Assembled Unit of Spiral Bevel Gear 29
DISASSEMBLING
1. Disassemble wheel with rubber tire from rear wheel cover (wheel cover of drive end) by unscrewing hex socket head
bolt M6x12. (Fig. 5)
2. When replacing spiral bevel gear 29 only, remove retaining ring R-47 in this step using Retaining Ring R Pliers
(1R005). (Fig. 6)
3. Remove the assembled unit of spiral bevel gear 29 and spur gear 12 by striking around the rear wheel cover shaft
evenly with plastic hammer. (Fig. 7)
4. Separate spur gear 8 from ball bearing and spiral bevel gear 29 using arbor press. (Fig. 8)
ASSEMBLING
Fig. 6
Fig. 7 Fig. 8
Fig. 5
Retaining ring R-47
Gear Complete
Wheel with
Rubber Tire
Flat Washer 6
Flat Washer 16
Hex Socket Head Bolt M6x12
No.1R005
Rear Wheel Cover Shaft
Rear Wheel Cover
Spiral Bevel Gear 29
Spiral Bevel
Gear 29 Ball Bearing 6204LLB
Spur Gear 12
Spur Gear 12
Ball Bearing
6204LLB
Ball Bearing
608LLB
Key 4
Do the reverse step of disassembling.

P 5 / 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Assembled Unit of Helical Gear 45
Fig. 9
Fig. 10 Fig. 11
DISASSEMBLING
1. Disassemble gear housing complete and rear wheel cover from motor section. (Fig. 2, Fig. 3)
2. Remove armature from gear housing complete. (Fig. 4)
3. Unscrew one 4x40 tapping screw with which gear housing complete is secured to rear wheel cover. (Left Fig. 9)
4. Disassemble gear housing complete with helical gear 45 by striking the edge of rear wheel cover
with plastic hammer. (Center Fig. 9)
5. Remove the assembled unit of helical gear 45 by striking gear housing complete with plastic hammer.
(Right Fig. 9)
6. Setting the assembled unit of helical gear 45 on Drill Chuck Extractor (1R139), remove spiral bevel gear 11
together with ball bearing 6202LLB using arbor press. (Fig. 10)
7. Remove retaining ring S-15 from spiral bevel gear 11 with Retaining Ring S and R Pliers (1R291). (Fig. 11)
8. Ball bearing 6202LLB can be removed from spiral bevel gear 11 with 1R269 "Bearing Extractor".
ASSEMBLING
Tapping Screw
4x40
1R282
1R291
Ball Bearing
608LLB
Ball Bearing
6202LLB
Helical Gear 45
Spiral Bevel Gear 11 Spiral Bevel Gear 11
1R139
Retaining Ring S-15
Ball Bearing
6202LLB
Gear Housing
Complete
Gear Housing
Complete
Assembled Unit
of Helical Gear 45
1. After assembling ball bearing 6202LLB and retaining ring S-15 to spiral bevel gear 11, mount helical gear 45 as
illustrated in Fig.12.
Ball Bearing
6202LLB
Ball Bearing
6202LLB
Ball Bearing 608LLB
Spiral Bevel
Gear 11
Retaining
Ring S-15 Helical Gear 45
Assemble helical gear 45,
facing the grooved side
to ball bearing 6202LLB.
Fig.12

P 6 / 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -4. Lower Shaft
Fig. 13
Fig. 15
DISASSEMBLING
ASSEMBLING
1. Disassemble wheel with rubber tire from rear wheel cover (wheel cover of drive end) by unscrewing
hex socket head bolt M6x12. (Fig. 5)
2. Loosen hex socket head bolt M6x16, but stop to unscrew it at the position where it can be removed only by a few
turns. (Fig. 13)
3. Strike the hex socket head bolt with plastic hammer. Now lower shaft is pushed out of accepting hole, and it can be
removed only by a few turns from hex socket head bolt. (Fig. 14)
Rear Wheel Cover
Rear Wheel Cover
Turn hex socket head bolt clockwise. So lower
shaft is hoisted into the accepting hole.
You can only turn hex socket head bolt M6x16 clockwise for assembling lower shaft into the accepting hole.
(Fig. 15)
Lower Shaft
Lower Shaft Lower Shaft, assembled into
the accepting hole
Lower Shaft, pushed out
from accepting hole
Hex Socket
Head Bolt M6x16
Hex Socket
Head Bolt M6x16
Fig. 14
Hex Socket
Head Bolt M6x16

P 7 / 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -5. tension Plate and Slide Plate
DISASSEMBLING
Fig. 18
1) Remove the wheel on the front side.
2) From slide plate, remove the three tapping screws that fasten slide plate and the pan head screw that fixes lever 60.
(Fig. 16)
At this time, lever 60 is removed from front wheel cover. Be careful with fall of the lever.
Note: Be careful not to confuse the two kinds of screws when assembling.
3) Put tension plate section on Ring 22 (1R217), and disassemble by striking it with slotted screwdriver as illustrated in
Fig. 17.
Note: You may feel a small shock when the compressed springs 11 are released.
1) Set two compression springs 11 to tension plate, and then align the hole of slide plate with the hole of tension plate.
2) See Fig. 18. While pushing tension plate against slide plate, compress compression springs 11 by pulling tension plate
in the direction of the black arrow using water pump pliers till tension plate is set in place.
ASSEMBLING
Slide plate
Tension plate
Compression spring 11
Slide plate
Insert two Tension plate ends
into two holes each in Slide
plate
Protrusions of Tension plate
Protrusions of Slide plate
Hook the protrusions of Tension plate
to the protrusions of Slide plate as
illustrated below.
Fig. 17Fig. 16
Pan head screw for fixing lever 60
Tapping screws
1R217

P 8 / 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -5. Grip
Fig. 19
DISASSEMBLING
ASSEMBLING
Correct Wrong
Front Wheel
Cover Complete
Grip
Stairs-formed
side
Grip
Front Wheel
Cover Complete
Impossible to pull down grip enough,
to easy remove and attach battery.
Battery
Hex Socket
Head Bolt M8x35
Hex Socket
Head Bolt M8x35
1. Grip can be disassembled by removing two M8x35 hex socket head bolts. (Fig. 19)
1. When assembling grip to front wheel cover complete, face the stairs-formed side of grip to the upper side. (Fig. 19R)
If the grip is assembled as illustrated in Fig.19F, it is difficult to remove or attach battery.
Flat Washer 8 Fig. 19R Fig. 19F

Circuit diagram
P 9 / 10
Color index of lead wires' sheath
Black
White
Red
Orange
Handle Motor Housing
Speed
Preset Dial
Endbell Complete
Terminal
LED
Job Light
Controller
Switch
Fig.D-1

Wiring diagram
P 10 / 10
Handle R
Endbell's Lead
Wire (red)
Controller's Lead
Wire (red)
Controller's Lead
Wire (orange)
Switch
Pin Lead Wire Holder
Fix the controller's lead wire (orange)
with lead wire holder.
Lead Wire Holder
Rib
Rib
Handle (Handle R)
Housing (Housing L)
Route the lead wires
for connecting to
switch between pin
and rib.
Dial
Housing L,
viewing from carbon brush
assembling side
Fig.D-2
The illustration of housing L in Fig.D-3 shows the view from housing R assembling side.
LED
Job Light
Rib of
Housing L
Boss
Yoke Unit
Notch Mount yoke unit to
housing L, while fitting
its notch with boss.
Controller
Yoke Unit
Dial Terminal
Endbell Complete
Endbell Complete
Mount endbell complete to housing L, facing its lead wire
(red) connecting to dial to terminal side. Route its lead
wire (black) by the rib.
Endbell's Lead Wire
(red)
Endbell's
Lead Wire
(black)
Rib
Pin
Lead Wire Holder
Route the lead wires for
connecting to dial and
switch inside the pins.
Fix the lead wires
with lead wire
holder.
Expand the lead wires
between LED job light
and the lead wire holder.
Fig.D-3
Fix the lead wires for connecting
to switch with lead wire holder.