P
3
/ 1
2
R
epair
[3] DISASSEMBLY/ ASSEMBLY
[3]-1. Shaft pipe complete (for BBC231U and AT-3623)
Fig. 2
Fig. 4
Fig. 3
Fig. 5
Fig. 7
Fig. 6
Fig. 8
Fig. 10
Fig. 11
Fig. 9
M6x30 Hex
socket head
bolt (2pcs.)
O ring 11
(2pcs.)
Protector
Protector
clamp
Shaft pipe
M5x25 Hex socket
head bolt
M5x25 Hex socket
head bolt (2pcs.)
1) Loosen two M6x30 Hex socket head bolts, and then remove Protector. (Fig. 2)
2) Enlarge the clamp pitch of Protector cover carefully and slide two holes of Protector cover from the bolts-heads of two
M5x14 Hex socket head bolts. (Fig. 3) Protector cover can be removed.
3) Remove two M5x14 Hex socket head bolts and separate Protector clamp from Gear case assembly.
Then loosen M5x25 Hex socket head bolt as the clamp of Gear case assembly. (Fig. 4)
Gear case assembly can be pulled out from Shaft pipe.
4) Remove two M5x25 Hex socket head bolts and Pipe clamp as the clamps for Handle 19.
Handle 19 section can be separated from Shaft pipe. (Fig. 5)
5) Remove M5x20 Pan head screw and M5x20 Hex socket head bolt. And then separate
Pipe bracket cover from Pipe bracket by sliding Pipe bracket cover itself in the direction
designated as illustrated in Fig. 6
6) Pull out Shaft pipe and Shaft from Pipe bracket by hand. Refer to Fig. 7.
Note: When removing Shaft is difficult, pull out Shaft with water pump pliers. (Fig. 8)
7) Remove four M4x12 screws and Battery guard. (Fig. 9)
8) Remove two 5x25 Tapping screws that fastens Gear box and Housing R, and remove
five 4x18 Tapping screws. (Fig. 10) Housing R can be removed.
9) Disconnect Power supply cord unit and Controller complete by removing their
connectors.
Then remove 4x18 Tapping screw and Strain relief from Housing L. (Fig. 11)
DISASSEMBLING
Clamp pitch of
Protector cover
Hole of Protector cover
for M5x14 Hex socket
head bolt-head
Bolt-head of M5x14
Hex socket head bolt
(2pcs.)
Gear case
assembly
M5x14 Hex socket head bolt (2pcs.)
Pipe clamp
Pipe
bracket cover
To
Cushion
side
Pipe bracket
cover
Pipe rubber
Handle 19
M5x20 Pan head screw
Battery guard
4x18 Tapping screw (5pcs.)
Strain relief for
Power supply cord unit
Housing R
5x25 Tapping
screw (2pcs.)
4x18 Tapping screw
Connector of Controller
M4x12 screw (4pcs.)
M5x20 Hex
socket head screw
Pipe bracket Shaft
Shaft
Shaft pipe
Shaft pipe
Cushion
Water pump pliers
Connector of
Power supply
cord unit
Power
supply
cord unit
