Piston Cylinder; Inner Housing - Makita HR2450F Technical Information

R
epair
< 6 > Disassembling armature
1. Disassemble handle cover by unscrewing tapping screw 4 x 25. And disassemble carbon brushes
as illustrated in Fig. 4.
2. Separate gear housing together with armature, from motor housing by unscrewing tapping screws 4 x 45
as illustrated in Fig. 4A.
3. Slightly hitting the edge of gear housing with plastic hammer, remove armature from inner housing assembled in
gear housing. See Fig. 4B.
4. Ball bearings of fan side and commutator side can be disassembled with No.1R269 "Bearing extractor (small)".
See Fig. 4C.
Brush holder
Carbon brush
Handle
cover
< 7> Disassembling tool holder section
1. Disassemble change lever from gear housing as mentioned in < 4 > Disassembling change lever at page 7.
2. Separate gear housing from motor housing as illustrated in Fig. 4 and Fig. 4A. And disassemble armature as
illustrated in Fig. 4B.
3. Disassemble inner housing from gear housing as illustrated in Fig. 5.
4. Separate tool holder section from inner housing as illustrated in Fig. 5A. Pay attention, not to lose flat washer 28,
when separating tool holder section.
Plastic hammer
Swash bearing section
Fig. 5
Brush holder
Carbon brush
Tapping s
crew 4 x 25 : 3 pcs.
Fig. 4
No.1R269 "Bearing extractor (small)"
Tool holder section

Inner housing

Swash bearing section
Tapping s
crew 4 x 45 : 4 pcs.
Gear housing
Motor housing
Fig. 4A
Tool holder section
Flat washer 28
Fig. 5A
Gear housing
Inner housing Inner housing
Plastic hammer Plastic hammer
Fig. 4B Fig. 4B
Ball bearing
Fig. 4C

Piston cylinder

Inner housing
P 8 / 18
Armature