JRC JMA-2343, Instruction Manual

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2. Rotary drive block (JMA 2. Rotary drive block (JMA 2. 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