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2. Rotation driving section
(a) Greasing gears
Apply grease on the faces of the teeth of each gear using a spatula or brush. The more
frequently greasing is applied, the longer the life span becomes, preventing the abrasion.
Greasing is necessary at least once in six months.
Use "Mobilux 2" of Mobile Oil or equipment product for the grease.
(b) Driving motor
i) Attenuator
Greasing is not necessary unless there is oil leakage.
ii) Motor
The life span of the brush itself is 2000 hours. When the brush is worn out to a half of
the entire length, replace it.
The communicator must be kept clean all the time. If carbon dust is stuck and cannot
be removed with a dry cloth, polish the section with sand paper of No.150 to 400.
The carbon brush can be removed by removing the caps on both sides of the bottom of
the motor.
List of replacement carbon brushes
Scanner unit
model name
Item name Model name JRC code
Replacement
quantity
JMA-5104 − − −
Cannot be replaced
JMA-5106 Carbon brush 54531-01 BRXP05247 2
JMA-5110 Carbon brush 54583-01 BRSW00101 2
* Since the brush of JMA-5104 cannot be replaced, it must be replaced by motor ASSY.
(c) Mounting stand
Check the scanner unit mounting volts occasionally and paint them every six months to
prevent corrosion.
Carbon brush
Communicator contact side
Spring
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