Makita HR3200C Technical Information page 15

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -6. Gear Section in Crank Housing Complete
DISASSEMBLY
1) Disassemble Handle Section (Fig. 5)
2) HR3200C, HR3210C: Disassemble Chuck Section (Fig. 6)
HR3210FCT: Disassemble Tool holder assembly. (Fig. 7)
3) Remove Crank housing cover and Barrel complete together with Cylinder section. (left illustration in Fig. 13)
4) Set Change lever to Rotary hammer mode as illustrated in Fig. 31. Remove Crank cap cover. (Fig. 21)
5) HR3210C, HR3210FCT: Disassemble Active Dynamic Vibration Absorber. (Fig. 22)
6) Disassemble Rear cover from Motor housing. (Fig. 25)
7) Disconnect the contact between Carbon brush and Commutator. (Fig. 27)
8) Separate Crank housing complete from Motor housing. (Fig. 28)
9) If it is omitted to set Change lever to Rotary Hammer Mode when removing Crank cap cover, set Change lever as
illustrated in Fig. 31A.
10) Disassemble the remaining parts as illustrated in Figs 32 and 33.
Fig. 31
Set Change lever to Rotary hammer mode.
Fig. 32
M4x16 Pan head screw: 5 pcs.
Crank cap
Seal ring B
Remove Crank cap by unscrewing
M4x16 Pan head screws. And then,
remove Link plate.
< Caution >
When disassembling Crank cap, do not
move Change lever from the position
illustrated in Fig. 31A.
Fig. 33
Piston and Crank at the dead
point on Striker side
Crank Connecting rod of Piston
Set Crank and Piston to the
dead point on Striker side.
Change lever
Rotary hammer
mode mark on
Crank cap cover
Torque limiter
section
Link plate
Spiral bevel gear 37
Striker
side
Because Cylinder 25 has been already
removed, Connecting rod can be easily
disassembled from Pin of Crank shaft.
Now pull out Piston from Crank
housing complete.
Fig. 31A
If Crank cap is already removed, align the triangle mark
on Change lever with that on Crank cap.
If
Torque Limiter Section
housing complete in the step of Fig. 28,
disassemble it.
Otherwise, it is impossible to remove
Spiral bevel gear 37.
Spiral bevel gear 37 and Link arm
can be removed.
Connecting rod
Piston
P 15 / 24
Triangle mark
on Change lever
Triangle mark
on Crank cap
is left in Crank
Link arm
Air pipe
Remove Air pipe.