Makita GA7020R Technical Information page 7

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Large spiral bevel gear, Ball bearing 6203DDW, Ball bearing 6000LLB (cont.)
DISASSEMBLING
(2) Ball bearing 6203DDW can be disassembled as illustrated in Fig. 13A, or Fig. 13B.
Fig. 13A
Bearing box
Remove Ball bearing 6203DDW by striking Bearing box
against Work table.
ASSEMBLING
(1) Assemble Ball bearing 6203DDW and Spindle as illustrated in Fig. 14.
Fig. 14
Assemble new Ball
bearing 6203DDW.
Bearing
retainer 50
(2) Assemble large spiral bevel gear to Spindle as illustrated in Fig.15.
Fig.15
1R165
(3) Assemble Ring spring 11 and Ball bearing 6000LLB. (Fig. 10)
Ball bearing
6203DDW
Assemble Bearing
retainer.
M5x16 Pan head
screw (3pcs.)
Putting Large spiral bevel gear on 1R165, press Spindle into
Arbor hole of Large spiral bevel gear with Arbor press.
Large spiral bevel gear
Fig. 13B
Receive not only the brim portion
but also the cylindrical portion of
Bearing box with Turn table of Arbor
press when assembling Spindle ass'y.
Cylindrical portion of
Bearing box
Brim
If it is difficult to remove as illustrated
in Fig. 13A, remove Ball bearing
6203DDW with the appropriate
diameter round bar and Arbor press.
Round bar
Ball bearing 6203DDW
Assemble Spindle ass'y.
P 7/ 9
Spindle
ass'y