Makita BBO140 Technical Information page 3

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Fan 88, DC motor and Pulleys (cont.)
DISASSEMBLING
(2) Fan 88, Synchro belt 6-174, Pulley 7.5-40.3, Retaining ring S-7 and two Ball bearings are disassembled from
Spindle as drawn in Fig. 2.
Fig. 2
1. Remove Fan 88, Synchro belt 6-174 and
Pulley 7.5-40.3 from Spindle.
Pulley 7.5-40.3
Spindle
Synchro belt 6-174
3. Remove Retaining ring S-7
with 1R291.
1R291
Retaining
Spindle
ring S-7
(3) Separate DC motor from Motor bracket as drawn in Fig. 3.
Fig. 3
1. While holding flat portion of DC motor shaft with Wrench 10,
unscrew M6 Hex nut counterclockwise with Socket wrench 10.
Pulley 7.5-24.1 is now removed from DC motor.
Socket wrench 10
Wrench 10
2. Remove Spindle section (including Ball bearings
Fan 88
4. Remove Ball bearing 607ZZ and
Ball bearing 629DDW from Spindle.
Ball bearing
629DDW
M6 Hex nut
Pulley
7.5-24.1
607ZZ & 629DDW and Retaining ring S-7) with
1R045 from Motor bracket.
1R045
Motor bracket
Ball bearing
607ZZ
Spindle
2. Remove Motor bracket from DC motor
by unscrewing two M3x8 Pan head
screws.
M3x8 Pan head
screw (2pcs.)
Motor bracket
DC Motor
P 3/ 8
Retaining ring S-7
Ball bearing 607ZZ
Spindle
Ball bearing 629DDW