Rotation Driving Section - JRC JMA-5104 Instruction Manual

Marine radar equipment
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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.
Scanner unit
model name
JMA-5104
JMA-5106
JMA-5110
* 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.
Spring
List of replacement carbon brushes
Item name
Carbon brush
54531-01
Carbon brush
54583-01
Carbon brush
Model name
BRXP05247
BRSW00101
197
Communicator contact side
Replacement
JRC code
Cannot be replaced
2
2
quantity

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