Makita BPT350 Technical Information page 4

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Replacing Switch, LED circuit and Terminal
1) Do the steps 1), 2), 3) and 4) of page 3.
2) Replace the Switch, LED circuit and Terminal under
the condition that Compression spring 17 remains
compressed.
3) Separate housing R by removing Tapping screws and Pan
head screws illustrated in Fig. 9 while holding trigger
section so as not to spring out of housing L.
4) Switch, LED circuit and Terminal are now removed.
[3] -3. Replacing Motor
Note: when Motor or Switch is out of order, Hammer of Spring section often stops in the halfway position and
Compression spring 17 is still in compression. It is impossible to remove Motor from Housing L in this
condition.
Therefore, take the following steps.
1) Remove Front cover and Housing R as illustrated in Fig. 2 and Fig. 9.
2) Remove M4x6 Hex socket head bolt. Pull out Upper rail complete, and then separate Magazine ass'y from Housing L
by removing two M4x10 Hex socket head bolts. (Fig. 10)
3) Spring section is secured to Housing R with two 3x16 Tapping screws bind PT. Disconnect Spring section by removing
these screws. (Fig. 11)
4) Insert slotted screwdriver into the gap between Housing L and Rail of Spring section, and then lever up Spring section
with the slotted screwdriver as illustrated in Fig. 12.
Note: 1) Cover Spring section with cloth in order not to pinch your finger.
2) Hold Spring section by hand to prevent Compression spring 17 from jumping out.
5) Remove Motor from Housing L.
Fig. 10
Housing R
Fig. 11
Spring section
Cushion Hammer
Holder
Guide bolt
Tapping screw bind PT3x16
Hex socket head
bolt M4x10
Hex socket head bolt M4x6
Hammer stops in
the halfway position
Compression
spring 17
Rail
Housing L
Fig. 9
Tapping screw
bind PT3x16 for
Housing L and R: 8 pcs.
Housing R
Pan head screw M4x14
Fig. 12
Cover Spring section with cloth and hold them by hand.
Holder
Slotted screwdriver
P 4 / 13
Hold trigger section so
as not to spring out.
Housing L
(The reverse of
Housing R)
Pan head screw
M4x35
Housing L
Upper rail complete
Compression spring 17
Rail