Makita UH520D Technical Information page 7

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Spur Gear 93
DISASSEMBLING
(1) Disassemble Shear blade complete, and then, remove Spur gear section as drawn in Fig. 2.
(2) Disassemble Spur gear 93 as drawn in Fig. 11.
Fig. 11
1. Put Spur gear section on 1R035,
remove Spindle with Arbor press.
ASSEMBLING
(1) Assemble Spindle to Spur gear 93 as drawn in Fig. 12.
Fig. 12
CORRECT
Press-fit Spindle from the depressed side of
Spur gear 93 so that Shear blade complete is
assembled to Spur gear 93 precisely.
Depressed side
of Spur gear 93
Spindle
Shear blade complete
(2) Face its grooved side of Spur gear 93 to Bearing box complete and assemble Spur gear sesction to Bearing box
complete.
Note: Be sure to set two Flat washers 8 on both Spindle ends, two Nylon sleeves into holes of Shear blade complete
as drawn in Fig. 3.
Spur gear 93
Spindle
1R035
Crank pin
2. Spindle is removed
from Spur gear 93.
Spindle
WRONG
Do not insert Spindle from the projected side of
Spur gear 93 because Crank pin can not be fit to
Spur gear 93 precisely.
Projected side
of Spur gear 93
Spindle
P 7/ 13
Crank pin
Shear blade
complete
Shear blade complete