Makita BTP131 Technical Information page 6

R
epair
[3]-1 Impact Assembly, Anvil
DISASSEMBLING
(4) Disassemble Impact assembly (Fig. 5).
Fig. 5
1. Shift the stick of Speed change lever
assembly toward Motor bracket side.
3. Disassemble Impact assembly and Anvil section as below.
Gear case Compression
assembly spring 5
Anvil
Steel ball 5.6
(5) Disassemble Hammer change plate, Hammer change ring, Compression spring 2 (2 pcs), Sleeve 24 and
Change case from Gear case assembly (Fig. 6).
Fig. 6
1. Remove Pin guide and Pin 1.2-3.5
from the both side of Gear case
assembly. And remove Change
sleeve.
Change sleeve
Pin 1.2-3.5
Pin 1.2-3.5
Pin guide
Pin guide
4. Remove Hammer change ring, Compression
spring 2 (2 pcs) and Sleeve 24.
And then, remove Change case form Gear
case assembly.
Spur gear 41
Pin 1.2 (4 pcs)
Hammer section
Steel ball 3
Spur gear 14B
(6 pcs.)
(5 pcs.)
2. Pull up Hammer change plate
while pressing down
Hammer change down.
Hammer
change plate
Hammer
change ring
Sleeve 24
2. Turn Motor bracket assembly
counterclockwise and pull it off.
Motor bracket assembly
Spur gear 14A
Internal gear 41
Spur gear 21 (3 pcs.)
3. Pull out Hammer change plate
downward direction indicated
by black arrows below.
Hammer
change plate
Hammer
change ring
Compression
Change case
spring 2
Hammer change ring
P 6/ 18
Motor bracket assembly
Hammer
change plate
Gear case assembly