Makita UH7580 Technical Information page 4

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Motor, Switch and Power supply cord (cont.)
DISASSEMBLING
5) Remove Switch lever A with Compression spring 5, Switch lever C with Rod and Link, and Switch from Housing L.
(Fig. 12) (The position of Switch interferes with disassembly of Lifter section.)
6) Remove Lifter section from Housing L. (Fig. 13)
Note: Lifter section of UH5580, UH6580 and UH7580 is different from that of UH4570, UH5570 and UH6570.
Enlarge the distance between Pin holder and Cap holder using 1R003 with 1R212, and keep Compression spring 5
compress to separate the bottom end of Pin 5 from the hole of Gear housing. See Fig. 14 for the detail.
7) After removing Brush holders, separate Armature ass'y, Field ass'y, Lever and Gear housing as a assembled part from
Housing L. (Fig. 15)
Fig. 12
Compression Pins of
spring 5 Housing L
Switch lever A
Fig. 14
Compression spring 5
The bottom end
of Pin 5
When the bottom end of Pin 5 penetrates the hole of Gear
housing, Lifter section can not be removed without difficulty.
Because a part of Lifter section often interferes with ribs of
Housing L.
Fig. 15
Armature ass'y
Field ass'y
Lever
Gear housing
Fig. 13
Housing L
Switch
Link
Rod
Switch lever C
Lifter
section
Gear housing
Enlarge the distance between Pin holder and Cap holder
using 1R003 with 1R212, and keep Compression spring 5
compress, and Lifter section will be pulled out from the
hole of Gear housing as illustrated by black arrow.
Brush holders
Cap holder
Lifter
section
Pin holder Compression spring 5
Cap holder
Pin holder
Pin 5
P 4/ 7
1R212
1R003
1R212
1R003
Gear housing