Makita UH7580 Technical Information page 3

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Shear blade ass'y and Gear ass'y (cont.)
DISASSEMBLING
5) Loosen two M5x25 Pan head screws (threadlocker type) and separate Shear blade ass'y from the machine. (Fig. 6)
Note: 1. Leave the two M5x25 Pan head screws in their holes of Shear blade ass'y when setting Shear blade ass'y in place
without disassembly.
Removing two M5x25 Pan head screws may cause misalignment between two sleeves and holes of Shear blade ass'y.
2. Leave Dust guard in the groove of Gear housing.
6) Pull out Gear ass'y from Gear housing using two 1R263 or slotted screwdrivers. (Fig. 7)
Fig. 6
Blade cover
Sleeve (2pcs.)
in the holes of
Shear blade ass'y
Dust guard
ASSEMBLING
Take the disassembling step in reverse.
Note: Regarding the new Shear blade ass'y;
- make sure that the routes for the two M5x25 Pan head screws are secured.
- pass two M5x25 Pan head screws through the holes for Shear blade ass'y in advance.
The flat shape of Dust guard has to be inserted into the groove of Gear housing before putting Shear blade ass'y on
Gear housing. (Fig. 8)
Pass the two M5x25 Pan head screws through Shear blade ass'y to align the holes of Shear blade ass'y with
Sleeves, and tighten the two M5x25 Pan head screws. (Refer to Fig. 6.)
When reusing two M5x25 Pan head screws, apply adhesive to the threads.
When the holes and Sleeves for two M5x25 Pan head screws are not aligned, slide only Guide plate back and forth.
(Fig. 9)
After tightening M5x25 Pan head screws, make sure that Shear blades reciprocates smoothly with turning Crank
with slotted screwdriver. (Fig. 6)
Fig. 8
Guide plate
Dust guard
Flat shape
[3] -3. Motor, Switch and Power supply cord
DISASSEMBLING
1) Remove Shear blade ass'y. (Refer to Fig. 6.)
2) Remove Top cover and Carbon brushes. (Figs. 1 and 2)
3) Remove two M5x30 Pan head screws, and then slide
the following parts together the forward direction. (Fig. 10)
*Switch lever B *Front grip *Protector complete
The above parts can be pulled out from Housing set.
4) Remove ten 4x18 Tapping screws and separate Housing R
from Housing L. (Fig. 11)
M5x25 Pan head screw (2pcs.)
Shear blade ass'y
Gear ass'y
Gear housing
Gear housing complete
Fig. 7
1R263 or slotted screwdriver (2pcs.)
Gear ass'y
Fig. 9
Shear blades
Fig. 10
Front grip
Switch lever B
M5x30 Pan head
screw (2pcs.)
Fig. 11
4x18 Tapping screw
(10pcs.)
Housing R
P 3/ 7
Gear room
slotted screwdriver
Protector
complete