Makita BBC231U Series Technical Information page 6

R
epair
[3] DISASSEMBLY/ ASSEMBLY
[3]-2. Gear case assembly (for all models) (cont.)
ASSEMBLING
Take the disassembling step in reverse.
Note: Pressfit Cutter shaft with Ball bearing 6001LLU into
Gear case as follows;
1) Receive Gear case on table of Arbor press so that
the shaft installation side faces the U groove of the table.
2) Press down the top of Cutter shaft using 1R028.
[3]-3. Helical gear 33, Spindle hub (for all models)
DISASSEMBLING
1) Remove Gear case assembly from Shaft pipe.
2) Remove four M5x20 Pan head screws and Pipe bracket. (Fig. 22)
3) Remove Helical gear 33 with Spindle hub etc. from Gear box.
Refer to Fig. 23. The assembled section shown in Fig. 23 can be
removed as illustrated in Fig. 24.
Fig. 22
Pipe bracket
M5x20 Pan head
screw (4pcs.)
ASSEMBLING
Take the disassembling step in reverse.
Note: Refer to Figs. 23 and 25 for the positions of the components
of Helical gear 33 section.
Do not fail to set O-ring 6 and two Flat washer 12 in place.
Fig. 23
Flat washer 12
Spindle hub
on both side of
Helical gear 33
O-ring 6
Ball bearing
6001ZZ
Ball bearing
6901ZZ
Helical gear 33
Fig. 21
Gear case
U groove of table of Arbor press
Fig. 24
1R285
Ball bearing
Spindle hub
6901ZZ
Helical
gear 33
1R232 1R036
Fig. 25
To bearing box Helical gear 33
Ball bearing
6901ZZ
Flat washer 12
P 6/ 12
Ram of Arbor press
1R028
Cutter shaft with
Ball bearing 6001LLU
Table of
Arbor press
1R285
Ball bearing
6001ZZ
Spindle
hub
To pipe shaft
O-ring 6
Ball bearing Spindle hub
6001ZZ