Makita HM1810 Manual page 4

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[3] DISASSEMBLY/ASSEMBLY
[3] -1. Disassembling/Assembling Motor Section
REMOVING FIELD
1) Remove Motor housing cover set. Fan 100 secured with Hex nut M8 will be now visible.
2) Remove the assembly of Rear cover and Handle (switch side), then Brush holder caps and Carbon brushes.
Important:
When unscrewing Brush holder caps, be careful not to break the screwdriver insertion slot because the adhesive-applied
Brush holder caps are secured tight.
3) Remove hex nut M8 by turning counterclockwise with Socket bit 13-55 (No.784408-3) and Impact driver.
Now Fan 100 can be separated from Armature shaft. (Fig. 3)
4) After unscrewing four M6x22 Hex socket had bolts, remove Bearing box from Crank housing using
Gear extractor, large (No.1R045). (Fig. 4)
Fig. 3
5) Pull off Motor housing B from Crank housing. Then remove Motor housing A from Crank housing by tapping the
edge of Crank housing with plastic hammer. (Fig. 5) Sometimes, when tapping Crank housing, Armature may be
removed from Crank housing before Motor housing A.
6) After unscrewing two M5x85 Hex bolts, remove Field by tapping the edge of Motor housing A with plastic hammer.
(Fig. 6)
Fig. 5
Crank housing
Fig. 4
Socket Bit 13-55
(No.784408-3)
Fan 100
Bearing box
Motor housing A
Motor housing B
Armature
Gear extractor, large
(No.1R045)
Hex socket head bolt
M6x22 (4pcs)
Bearing box
Crank housing
Fig. 6
Field
Motor housing A
P 4 / 20
Hex bolt M5x85