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10. Maintenance
Item Model
Name
A007T03877( MITSUBISHI)
Nominal output
( V-A )
12-40
Polarity Negative ground
Weight
( kg)
Approx.3.7( 8.2 lb)
Rotational direction( Viewed from the pulley)
Clockwise
Load characteristics
( cold)
Terminal voltage (V )
13.5
Current (A )
Min. 30
Revolution number (rpm)
2500
Brush length
Original
( mm)
18.5( 0.728”)
Limit
( mm)
5.0( 0.2”)
Brush spring tension
Original
( g )
470~ 590( 1.036~ 1.300 lb)
Limit
( g )
270( 0.60 lb)
Bearing
Rear side ECSC8
Front side 6303DDG
Slip ring diameter
eccentric wear
To be repaired (mm) 0.05( .002”)
Allowable limit
( mm)
0.2( 0.08”)
Slip rings surface condition
If dirty or damaged correct
with emery clothe.
Rotor shaft bending
To be repaired (mm) 0.07( .0028”)
Field coil resistance (Ω/at 5000rpm)
2.8
Adjusting voltage (V )( at 5000rpm) 14.4~ 15.0