Panasonic EY7880 Service Manual page 11

Procedure 2A → 2B
Ref. No. 2B Assembly of gear case assembly.
1. Assemble the chuck spring and the chuck spring plate.
2. Insert a ball pushing down the chuck spring.
3. Inject an adhesive such as Cemedine SX720WH and wipe off to
bury the gap between the gear case A and B in order to prevent the
leakage of grease inside of gear box.
NOTE:
Make sure an adhesive is completely dried before assembling
the driving block into the houshing.
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