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P 4 / 6
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Helical Gear 37 and Ball Bearing 6202DDW
DISASSEMBLY
ASSEMBLY
1) Remove Gear housing. Refer to page 3.
2) Remove Pin 4 and Steel ball 3.5 from Spindle to prevent
missing and breaking. (Fig. 6)
3) Hook awl to inner periphery of Ring spring 12 and remove
Ring spring 12. (Fig. 7)
4) Put Gear housing section on 1R037 and fit 1R026 to Spindle.
And then press Spindle slightly with arbor press. (Fig. 8)
5) Put 1R283 on Spindle and push out Spindle from Helical
gear 37 with arbor press. (Fig. 9)
Note: When Helical Gear 37 is removed from Spindle,
a heavy load arises in Ball bearing 6202DDW in Gear
housing section. Therefore, be sure to replace Ball bearing
6202DDW.
6) Remove Retaining ring R-35 in Bearing room, and remove
Ring 12 and Ring 19.
7) Remove Compression spring 16 from Spindle and insert
Compression spring in Ball bearing 6202DDW.
Strike Spindle top with plastic hammer, and Ball bearing
6202DDW can be removed from Gear housing.
1) Complete assembling work to installation of Retaining ring
R-35 in the reverse order of the disassembling steps.
2) Mount Compression spring 16 on Spindle and put a little
amount of Molybdenum disulfide lubricant to Compression
spring 16, and then install them to Ball bearing 6202DDW.
3) Put Spindle on 1R035 and set 1R028 on Helical gear 37, and
then Press-fit Helical gear 37. (Fig. 10)
Fig. 6 Fig. 7
Fig. 8
Fig. 9
Fig. 10
Spindle
1R026
Spindle end
is put in
1R283.
1R037
Spindle
Awl
Ring spring 12
Steel ball
3.5
Pin 4
1R283
1R035
1R028
Helical gear 37
Helical gear 37
Gear
housing
section