Makita HR4002 Technical Information page 8

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -4. Crank Section
DISASSEMBLE
1) Disassemble Tool holder and Barrel section. (Fig. 10)
2) Disassemble Cylinder section. (Fig. 20 and Fig. 21)
3) Take out Link plate and Link plate guide from Crank housing complete. (Fig. 24)
4) Disassemble Link plate and Compression spring 7 from Link plate guide. (Fig. 25)
5) Take out Lock sleeve with Lock sleeve guide and Straight bevel gear 25. (Fig. 26)
Fig. 24
Set Change lever
to Hammer mode.
Hammer mode
Change
lever
Fig. 25
Link plate
Bottom View
(View from
Eye mark side)
This Plate portion is fitted to the Rail portion
of Link plate guide.
Fig. 26
Tail of Lock sleeve
Push out the tail
of Lock sleeve.
Tail of Lock sleeve
Crank cap
cover compete
Link plate guide
Link plate guide
Link plate
Rail portion
By expanding the Rail portion, de-fit the Plate
portion from the Rail of Link plate guide.
Top View of Crank Housing
Crank housing
Crank housing
Pan head
screw M5x20: 4 pcs.
Seal ring comes with Crank
cap cover complete, which is
fitted to the Bottom of Crank
cap cover complete.
Compression
spring 7: 2 pcs.
Now Link plate and
Compression spring 7
can be removed from
Link plate guide.
Lock sleeve
Straight bevel gear 25
P 8 / 20
Link plate guide
Link plate
Link plate
Link plate guide
Lock sleeve
guide