Makita BKP140 Technical Information page 6

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Drum
DISASSEMBLING
(1) Disassemble Bracket (with Armature, Drum). (Refer to Figs. 2 and 5)
(2) Set Phillips bit and Bit adapter to Impact driver in order to remove V-pulley 4-33.5. (Refer to Fig. 6)
(3) Disassemble Drum from Bracket. And remove Ball bearing 6000DDW. (Fig. 9)
Fig. 9
1. Hold Drum by hand, engage Bit adapter
to Square portion of V-pulley 4-33.5
and Remove V-pulley by turning it
counterclockwise.
Bit adapter
V-pulley 4-33.5
Drum
Note in Disassemble: When holding Drum,
cover it with cloth, or grip it with gloved hand.
(4) Remove Ball bearing 608ZZ with 1R269. (Fig. 10)
Fig. 10
4. The clearance between Ball bearing 608ZZ
and Drum is too small to insert the jaws of
1R269. Therefore, sharpen the jaws.
ASSEMBLING
Take the disassembling step in reverse. (Refer to Figs. 10, 9 and 5)
Note in Assembling
1. Tighten V-pulley 4-33.5 to Drum shaft by turning it clockwise.
2. It is not necessary to tighten V-pulley 4-33.5 to very high torque.
Reaction torque caused by stopping the rotation prevents V-pulley 4-33.5 from being loose.
2. Remove Drum from Bracket
by tapping Drum shaft with
Plastic hammer.
Drum
Ball bearing
608ZZ
Drum
3. Remove Ball bearing 6000DDW
(V-pulley side) with 1R269.
Ball bearing
6000DDW
5. Insert the jaws of 1R269 into the clearance between
Ball bearing 608ZZ and Drum, and fix the jaws of
1R269 in Vise.
And then, remove Ball bearing 608ZZ from Drum.
P 6/ 10
1R269
Ball bearing 608ZZ