JRC JMA-2343 - Rotary Drive Block (JMA-2344)

267
2. Rotary drive block (JMA
2. Rotary drive block (JMA2. Rotary drive block (JMA
2. Rotary drive block (JMA-
--
-2344)
2344)2344)
2344)
(a) Lubricating gears
Apply grease to gears evenly using a knife or brush. This lubrication needs to be per-
formed at least semiannually. The shorter the lubrication period, the longer the gears will
endure.
Use Mobilux 2 from Mobile Oil Co., Ltd. or equivalent.
(b) Drive motor (JMA-2344)
(α) Reduction gears
The reduction gears need no lubrication unless it is subject to oil leakage. If
they are disassembled for overhaul, replenish lubricant "Beacon 325" from Esso
Standard.
(β) Motor
The life time of the brush unit is 2,000 hours. The brush needs to be replaced if
1/2 of the overall length is worn.
The commuter needs to be kept clean. If any carbon power fixed on the com-
muter cannot be removed with a dry cloth, burnish it with a sand paper # 150 to
#400.
The carbon brush can be removed by removing the caps located on both sides of
the bottom portion of the motor.
Description Type JRC code Quantity
Carbon Brush 54531-01 BRXP05247 2
(c) Pedestal
Check the scanner unit mounting molts occasionally and apply paint semiannually to
protect them from corrosion.
Carbon brush
Contact with the commuter
Spring