Makita BO5040 Technical Information page 4

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Armature (cont.)
DISASSEMBLING
(5) It is difficult to remove the Ball bearings singly with 1R269, because of very tight space between Ball bearings
and other parts (Washer 9, Insulation washer). Gripping the legs of 1R269 with Water pump pliers, remove
Ball bearings as illustrated in Fig. 6, Fig. 7.
Fig. 6
Remove Ball bearing 607DDW.
ASSEMBLING
(1) Assemble Armature by doing reverse step of Figs. 7, 6 and 5. Be careful to the matters shown in Figs. 8 and 9.
Fig. 8
Armature
Stepped side
Fig. 9
1. Pass Fan 88 through
Armature shaft.
(2) Put Ball Bearing 6202DDW into Bearing box, and assemble Bearing box, Bearing box cover and Flat washer 4 to
Fan 88.
Refer to Figs. 4, 3 and 2.
Fig. 7
Water pump
pliers
1R269
Insulation washer
Ball bearing
607DDW
Washer 9
Set Washer 9 in place so as to face the stepped side
to the Ball bearing side. Otherwise, it is quite difficult
to replace Ball bearing 629DDW.
Because there is no slit for inserting the jaws of 1R269.
Fan 88
1. The screw hole on Armature shaft may be damaged by 1R269
when removing Ball bearing 629DDW.
Drive M4x16 Pan head screw to Armature shaft as a protector
for the screw hole.
2. Remove Ball bearing 629DDW
with 1R269 and Water pump
pliers.
2. Mount Skirt set to the same
angle set by the user,
taking their convenience
into consideration.
4x18 Tapping
screw (2pcs.)
Skirt set
P 4/ 9
Ball bearing
629DDW
Washer 9