Makita BDF441 Manual

ECHNICAL INFORMATION
For Models
Country
Description
T91055
March 2012
(Page 1 of 7)
Addition of Line filter,
Change of Brush holder complete, Switch, Terminal, and Housing set
BDF441, BDF451, BHP441, BHP451, DF451DM
BDF441 for Group 1: Australia, Austria, Cyprus, France, Germany, Italy, Netherlands, New Zealand,
Poland, Reunion, Russia, Spain, Sweden, Switzerland, Tahiti, Turkey, UK
for Group 2: Argentina, Brazil, Chile, China, Hong Kong, Indonesia, Mexico, Thailand
BHP441 for Group 1: Australia, Austria, France, Germany, Italy, Netherlands, New Caledonia,
New Zealand, Reunion, Russia, Spain, Sweden, Switzerland, Tahiti, UK
for Group 2: Argentina, Bhutan, Brazil, Chile, China, Indonesia, Korea, Mexico, Thailand
BDF451 for Group 1: Australia, Austria, Cyprus, France, Germany, Italy, Netherlands, New Caledonia,
New Zealand, Poland, Reunion, Russia, Spain, Sweden, Switzerland, Tahiti,
Turkey, UK
for Group 2: Argentina, Brazil, Canada, Chile, Hong Kong, Indonesia, Kuwait, Mexico,
Panama, Saudi Arabia, South Africa, Thailand, USA
BHP451 for Group 1: Australia, Austria, Cyprus, France, Germany, Italy, Netherlands, New Caledonia,
New Zealand, Poland, Reunion, Russia, Spain, Sweden, Switzerland, Tahiti,
Turkey, UK
for Group 2: Argentina, Bhutan, Brazil, Canada, Chile, Colombia, Guam, Hong Kong,
Indonesia, Iran, Korea, Kuwait, Mexico, Panama, Saudi Arabia, South Africa,
Thailand, USA
DF451DM for Group 1: Australia, Germany, UK
for Group 2: Canada, Hong Kong, USA
Subject
Brush holder complete has been replaced with Brush holder complete with Line filter to comply with
EMC for DC tools for Group 1 countries.
Switch and Terminal have been changed to feature battery protection for Group 1 countries and
Group 2 countries.
Housing set has been changed for Group 1 countries and Group 2 countries.
See below and next pages.
Note: • Use new parts for repair of the model manufactured on or after May 2011 (DF451DM: June 2011)
with using Yellow lead wire between Switch and Terminal.
•Use current parts for repair of the model manufactured before May 2011 (DF451DM: June 2011)
without using Yellow lead wire between Switch and Terminal.
For Group 1
For Group 1 and
Group 2
Current part New part NoteQ'tyI/CQ'ty
Interchangeability(I/C)
Item No.
Implementation
BDF441, BDF451, BHP441, BHP451: From May 2011 production
DF451DM: From June 2011 production
015
(DF451DM: 017)
006
(DF451DM: 024)
1
Brush holder complete
638849-4
Brush holder complete
638431-9 1 No
No
Switch TG553FSB-4
650573-9
Switch TG553FSB-4B
650653-1
No
1 1
025 DF451DM for
Group 1 and
Group 2
DF451DM for Group 1
and Group 2
BDF451 and BHP451 for
Group 1 and Group 2
BDF451 and BHP451 for
Group 1 and Group 2
BDF441 and BHP441 for
Group 1 and Group 2
The current
parts remain
available.
643812-4 1
008 Terminal
643838-6 No1
1
643859-8
1
Terminal
Terminal Terminal
643859-8
BDF451 and BHP451 for
Group 1 and Group 2
002, 023 188241-9 No1 1
187143-6
008 Terminal
643847-5 No1 1
Terminal
643866-1
002, 023
002, 023
Housing set
188036-0
Housing set
Housing set Housing set
Housing set Housing set
Housing set Housing set
BDF441 and BHP441 for
Group 1 and Group 2
002, 023 188240-1 No1 1
187143-6
Housing set Housing set
187142-8 11 No
188031-0 187142-8 11 No
001, 029 188648-9 187145-2 11 No

91055
(Page 2 of 7)
Light
circuit
Light
circuit
Heat sink
Heat sink
Connectors
Line filter: added
Place Line filter here.
Yellow lead wire: added
Brush holder complete
with Line filter
(in the dot line)
Brush holder complete
without Line filter
(in the dot line)
BDF451 and BHP451 for Group 1 countries
LED
LED
LED
black blue
white
yellow
red
orange
Connectors
minus terminal minus terminal
plus terminal plus terminalAS terminal
Switch
Housing L
Housing L is modified
in dot circled area
Housing set (with LXT logo)
188031-0 (Makita blue)
188241-9 (snow white)
Housing set (with LXT logo)
187142-8 (Makita blue)
187143-6 (snow white)
marking “A”marking “8A”
Terminal
Terminal
Switch
Current New
Fix lead wires in
lead wire holders
on Switch.
Light circuit
Connector
Rib
Terminal
Lead wire holders
Insulated terminal
Insulated terminals of Brush holder complete
must be parallel to the rear end of Switch
as drawn below.
Bend the insulated terminal on
M2 terminal side as drawn right.
6438386
PBT
643859 8
PBT
AS
8A
A

91055
(Page 3 of 7)
Light
circuit
Light
circuit
Heat sink
Heat sink
Connectors
Yellow lead wire: added
Brush holder complete
without Line filter
(in the dot line)
Brush holder complete
without Line filter
(in the dot line)
BDF451 and BHP451 for Group 2 countries
LED
LED
LED
black blue
white
yellow
red
orange
Connectors
minus terminal minus terminal
plus terminal plus terminalAS terminal
Switch
Housing L
Housing L is modified
in dot circled area
Housing set (with LXT logo)
188031-0 (Makita blue)
188241-9 (snow white)
Housing set (with LXT logo)
187142-8 (Makita blue)
187143-6 (snow white)
marking “A”marking “8A”
Terminal
Terminal
Switch
Current New
Fix lead wires in
lead wire holders
on Switch.
Light circuit
Connector
Rib
Terminal
Lead wire holders
Insulated terminal
Insulated terminals of Brush holder complete
must be 20
° tilted against a parallel line to
the rear end of Switch as drawn below.
Bend the insulated terminal on Housing R side
to prevent Lead wires from being pinched.
6438386
PBT
643859 8
PBT
AS
8A
A
20 °

6438475
PBT
643866 1
PBT
AS
91055
(Page 4 of 7)
Light
circuit
Light
circuit
Heat sink
Heat sink
Connectors
Line filter: added
Place Line filter here.
Yellow lead wire: added
Brush holder complete
with Line filter
(in the dot line)
Brush holder complete
without Line filter
(in the dot line)
BDF441 and BHP441 for Group 1 countries
LED
LED
LED
black blue
white
yellow
red
orange
Connectors
minus terminal minus terminal
plus terminal plus terminalAS terminal
Switch
Housing L
Housing L is modified
in dot circled area
Housing set (with LXT logo)
188036-0 (Makita blue)
188240-1 (snow white)
Housing set (with LXT logo)
187142-8 (Makita blue)
187143-6 (snow white)
marking “A”marking “4A”
Terminal
Terminal
Switch
Current New
Fix lead wires in
lead wire holders
on Switch.
Light circuit
Connector
Rib
Terminal
Lead wire holders
Insulated terminal
Insulated terminals of Brush holder complete
must be parallel to the rear end of Switch
as drawn below.
Bend the insulated terminal on
M2 terminal side as drawn right.
4A
A

6438475
PBT
643866 1
PBT
AS
91055
(Page 5 of 7)
Light
circuit
Light
circuit
Heat sink
Heat sink
Connectors
Yellow lead wire: added
Brush holder complete
without Line filter
(in the dot line)
Brush holder complete
without Line filter
(in the dot line)
BDF441 and BHP441 for Group 2 countries
LED
LED
LED
black blue
white
yellow
red
orange
Connectors
minus terminal minus terminal
plus terminal plus terminalAS terminal
Switch
Housing L
Housing L is modified
in dot circled area
Housing set (with LXT logo)
188036-0 (Makita blue)
188240-1 (snow white)
Housing set (with LXT logo)
187142-8 (Makita blue)
187143-6 (snow white)
marking “A”marking “4A”
Terminal
Terminal
Switch
Current New
4A
A
Fix lead wires in
lead wire holders
on Switch.
Light circuit
Connector
Rib
Terminal
Lead wire holders
Insulated terminal
Insulated terminals of Brush holder complete
must be 20
° tilted against a parallel line to
the rear end of Switch as drawn below.
Bend the insulated terminal on Housing R side
to prevent Lead wires from being pinched.
20 °

91055
(Page 6 of 7)
Line filter: added
Place Line filter here.
Brush holder complete
with Line filter
(in the dot line) Heat sink
Brush holder complete
without Line filter
(in the dot line)
DF451M for Group 1 countries
black blue
white
yellow
red
minus terminal minus terminal
plus terminal plus terminalAS terminal
Housing L
Housing L is modified
in dot circled area
Housing set
(without LXT logo)
188648-9
Housing set
(without LXT logo)
187145-2
marking “A”marking “8A”
Current New
Fix lead wires in
lead wire holders
on Switch.
Connector
Rib
Terminal
Lead wire holders
Insulated terminal
Insulated terminals of Brush holder complete
must be parallel to the rear end of Switch
as drawn below.
Bend the insulated terminal on
M2 terminal side as drawn right.
8A
A
643859 8
PBT
AS
Switch
6438124
PBT
Terminal
Connectors
Connectors
Yellow lead wire: added
Terminal
Switch

91055
(Page 7 of 7)
Brush holder complete
without Line filter
(in the dot line) Heat sink
Brush holder complete
without Line filter
(in the dot line)
DF451M for Group 2 countries
black blue
white
yellow
red
minus terminal minus terminal
plus terminal plus terminalAS terminal
Housing L
Housing L is modified
in dot circled area
Housing set
(without LXT logo)
188648-9
Housing set
(without LXT logo)
187145-2
marking “A”marking “8A”
Current New
8A
A
643859 8
PBT
AS
SwitchSwitch
6438124
PBT
Terminal
Connectors
Connectors
Yellow lead wire: added
Terminal
Fix lead wires in
lead wire holders
on Switch.
Connector
Rib
Terminal
Lead wire holders
Insulated terminal
Insulated terminals of Brush holder complete
must be 20° tilted against a parallel line to
the rear end of Switch as drawn below.
Bend the insulated terminal on Housing R side
to prevent Lead wires from being pinched.
20 °