Assembling Switch, F/R Change Lever And Switch Plate Complete; Disassembling Bit Holder Section - Makita BTD146 Technical Information

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epair
[3] DISASSEMBLY/ASSEMBLY

[3]-3. Assembling Switch, F/R change lever and Switch plate complete

(1) Fit the projection of Switch to the notch of F/R change lever and
assemble them to Housing set (L). (Fig. 15)
(2) Insert Switch plate complete to Housing set (L). (Fig. 16)
(3) Fit Sponge A into Seal and set them to Housing set (L). (Fig. 17)
Note: Align the end of Sponge A with the side end of Seal to be flat.
(4) Set Sponge B on the rib of Housing set (R). (Fig. 18)
Note: Use new Sponge A and Sponge B to assure the drip-proof construction.
Fig. 16
Housing set (L)
Switch plate complete
(used for BTD134 and
BTD146 only)

[3]-4. Disassembling Bit holder section

(1) Remove Hammer section by steps drawn in Fig.2 to Fig. 7.
(2) Remove the following parts from Hammer section. (Figs. 8, 9 and 10)
Hammering mechanism, Internal gear 51, O ring 40 and Bearing box complete
(3) Put Hammer case complete on 1R232 to disassemble Bit holder section easily. (Fig. 19)
(4) Expand the open end of Ring spring 11 with 1R291 and raise the opposite of Ring spring 11
by index finger while pressing the top of Sleeve by thumb. (Fig. 20)
The components are removed from Anvil as drawn in Figs. 21 and 22.
Fig. 19
Fig. 21
Flat washer12 Compression
spring 13
Ring spring 11
Fig. 17
Sponge A
Seal
Ring spring 11
Sleeve
Anvil
Hammer case
complete
1R232
Steel ball 3.5 (2pcs.)
Bit sleeve
Fig. 15
Notch of
F/R change
lever
Fig. 18
Housing set (L)
Sponge B
Rib of Housing set (R)
Fig. 20
Ring spring 11
Fig. 22
Hammer case
complete
P 6/ 11
Projection of Switch
1R291
Anvil
Nylon washer 19