Makita AR410HR Power Screwdriver User Manual


 
P 9/20
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-5. Air Motor Section
Fig. 16
Fig. 17
Remove Outer separator, Inner separator
and Spur gear 21 from Air motor section.
Remove O rings from Outer
separator and Inner separator.
Remove Rotor by tapping
the drive-end of Rotor shaft.
4) Disassemble Air motor section and remove Rotor and Upper drum cap as described in Fig. 16.
5) Rotor can be disassembled as described in Fig. 17.
Outer separator
Inner separator
Air motor
section
Drum
Upper
drum cap
Lower
drum cap
Spur gear 21
Outer separator
Inner separator
O Ring 45
O Ring 17
O Ring 16
In this step, Ball bearing 689ZZ
still remains in Lower drum cap.
Rotor
O Ring 31.5
Lower drum cap
Drum
Upper drum cap
Damaged or worn Blades can be replaced
in this step.
Note: Five Blades have to be replaced
simultaneously.
Blade
Upper drum cap
Rotor
Remove Rotor from Upper drum cap using 1R045
and 1R346.
In this step, Ball bearing 689ZZ still remains in
Upper drum cap.
Ball bearing 689 ZZ can be removed from Upper drum cap
using Rotor as illustrated below.
1R045
1R346
Ball bearing
689 ZZ
O Ring 9
O Ring 9 can be removed
from the opposite side of
Ball bearing 689ZZ.
DISASSEMBLING
Upper drum cap
Rotor
Hexagonal end
of Rotor shaft
Round end
of Rotor shaft