JRC JMA-993-SA Instruction Manual page 224

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(2) Scanner Mechanism
(a) Supply OilSeal
When there is not a grease nipple, the replenishment of grease oil is
unnecessary.
Remove the cap of the grease nipple on the front of the S band radiator support
and supply it with a grease gun. Make the oiling every six months. The oil
quantity shall be approximately 100 g that is as much as the grease comes out
of the oil seal. Use the grease of Mobilux 2 or EP2 of Mobil Oil.
(b) Oiling gears
Apply grease evenly to the tooth surfaces of the main shaft drive gear and the
encoder drive gear with a spreader or brush. Greasing in short intervals is
more effective to prevent the gears from wear and tear and extend their service
life, but grease those at least every six months. Use Mobilux2 or EP2 of
Mobile Oil.
(c) Mounting legs
Check the mounting legs and mounting bolts of the scanner unit case on
corosion sometimes and keep them in order not to cause any danger. Apply
paint to them once a half-year because painting is the best measure against
corrosion.
Transm itter-receiver U nit NTG-3037A/3028
Wipe dust on the transmitter and receiver sections with a piece of dry clothe or
feather.
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