P 4 / 9
R
epair
[3] -2. Large spiral bevel gear*
3
and Ball bearing in Bearing box*
4
DISASSEMBLING
GA5010/ GA6010
All Models
Fig. 11
Fig. 12
Fig. 9
Fig. 10
3) Remove Ring spring 11 from Spindle by levering up with slotted screwdriver while expanding the ends of the spring
a little bit with 1R004 or 1R291. (Fig. 11)
4) As illustrated in Fig. 12, put 1R258 (2 pcs) on the table of arbor press, then fix Bearing box in 1R258; at this time,
make sure that 1R258 is securely supporting all of the three raised portions on the flanged end of Bearing retainer.
Remove Large spiral bevel gear by pressing down the end surface of Spindle using arbor press.
1) Separate Bearing box from Gear housing first by unscrewing four M5x18 Pan head screws then by tapping the end of
Gear housing with plastic hammer as illustrated in Fig. 9. It is not necessary to remove Carbon brushes.
2) Remove Ball bearing 6000ZZ using 1R269. (Fig. 10)
[Regarding steps 3) and 4), do the alternative steps depending on the models as described below.]
Note: The gear and the ball bearing can be replaced without disassembling the Motor section.
1R269
Ball bearing 696ZZ
Bearing box
Large spiral bevel gear
*3: Different spiral bevel gears are used by different models as follows:
GA5010/ Spiral bevel gear 34A, GA5020/ Spiral bevel gear 34B
GA6010/ Spiral bevel gear 35A, GA6020/ Spiral bevel gear 35B
*4: Different ball bearings are used by different models as follows:
GA5010 and GA6010/ Ball bearing 6202DDW
GA5020 and GA6020/ Ball bearing 6002DDW
Gear housing
Bearing box
1R004
Ring spring 11
Spindle
Slotted screwdriver
Bearing box,
viewed from bottom
raised portion
on the flanged end
1R258
Bearing box
Spindle
Large spiral bevel gear
