Makita HP1640F Quick Start Manual page 5

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Armature (cont.)
ASSEMBLING
4) Pivot Cam holder complete on Armature shaft and install Spindle section
into Housing L while revolving Spindle clockwise in order to engage their
gear teeth. (Fig. 15)
5) Install Carbon brushes into Carbon brush holder.
6) Shift Change lever to Drill mode (Fig. 15). Then fix Housing R to Housing L
by tightening 4x18 Tapping screws (7pcs.)
[3]-4. Field ass'y, Brush holder complete
DISASSEMBLING
1) Separate Housing R and remove Carbon brushes.
2) Remove Armature ass'y and Spindle section from Field ass'y
and Housing L. (Fig. 16)
3) Disconnect receptacles of Lead wire ends from Brush holder
unit. (Fig. 17)
4) Remove the jaws of Brush holder unit from the protrusions of
Field ass'y. (Fig. 18)
5) Lever up Brush holder unit from Field ass'y with slotted
screwdriver as illustrated in Fig. 19.
Note: Joints are in the reverse side of Field ass'y, too.
Take the steps 4) and 5) in the same way.
Fig. 17
Field
Brush holder unit
Fig. 19
Connector of
Field ass'y
ASSEMBLING
Take the disassembling step in reverse.
Note: Brush holder unit has to be mounted to Housing L so that the recess portions are faced to Switch. Refer to Fig.
D-2A and D-2B of Wiring diagram.
Receptacle
slotted screwdriver
Connector of
Brush holder
unit
Fig. 15
Refer to 4).
Fig. 16
Spindle section
Housing L
Fig. 18
jaw of Brush holder unit
Field ass'y
P 5/ 7
Housing L Refer to 6).
Armature ass'y
Field ass'y
protrusion of
Field ass'y
Brush holder unit