P 5 / 9
R
epair
[3] -2. Large spiral bevel gear and Ball bearing in Bearing box (cont.)
DISASSEMBLING
GA5020/ GA6020
Fig. 13
Fig. 14
3) Remove Ring spring 7 from Spindle by levering up with slotted screwdriver while expanding the ends of the spring
a little bit with 1R004 or 1R291. (Refer to Fig. 11 on page 4.) Then remove Flat washer 8 and Lock washer.
4)-1. By striking the end surface of Spindle against workbench, Large spiral bevel gear can be removed from Spindle
together with Lock sleeve and Lock spring 16. (Fig. 13)
4)-2. Hold Large spiral bevel gear securely by hand, and pull off Lock sleeve with adjustable wrench while turning it
counterclockwise. Then remove Lock spring 16 the same way as you removed Lock sleeve. (Fig. 14)
Fig. 16
Fig. 17
Ball bearing
in Bearing box
5) After removing Large spiral bevel gear, separate Bearing retainer 39
by removing three M3x6 Pan head screws. (Fig. 15)
6) Remove Ball bearing in Bearing box by hitting Bearing box straight
down against flat surface of work-bench. (Fig. 16)
If cannot be removed, use arbor press and a round bar for arbor of
an appropriate size as illustrated in Fig. 17.
Fig. 15
Pan head screw
M3x6 (3 pcs)
Bearing retainer 39
Round bar for arbor
Bearing box
Spindle
Large spiral
bevel gear
All Models
Large spiral bevel gear
Lock sleeve
Lock spring 16
