4-7.
CHECKING ROTOR
1) Remove the brush holder and measure
resistance between the slip rings.
Check here the table (Fig 5-1)
:
If the circuit tester is not sufficiently accurate, it may not show the values given and may give
erroneous readings.
Erroneous reading will also occur when there is a wide variation of resistance among coil
windings or when measurement is performed at ambient temperatures different from 20°C
(68°F).
2) Cleaning Slip rings the slip ring surfaces
must be uniformly bright.
Slip rings showing black spots, excessive
wear, or uneven wear must be repaired.
A stained slip ring lowers generator
efficiency and output voltage.
Polish the slip rings with fine sandpaper
while turning the rotor until rough spots
disappear.
Care should be taken not to touch the rotor
coils with the sandpaper.
CIRCUIT TESTER
(Resistance)
SLIP RING
SAND PAPER
47
Summary of Contents for EZ6500CXS
Page 1: ......
Page 10: ...L LB Type AC EXTERNAL CHARACTERISTIC CURVES S SB Type AC EXTERNAL CHARACTERISTIC CURVES 10 ...
Page 11: ...LS Type AC EXTERNAL CHARACTERISTIC CURVES 11 ...
Page 44: ...4 4 ALTERNATING CURRENT VOLTAGE IS OV 44 ...
Page 51: ...4 11 WIRING DIAGRAM R S K Type 51 ...
Page 52: ...RK LS MK Type 52 ...
Page 53: ...REH CL Type 53 ...
Page 54: ...M Type 54 ...
Page 55: ...SB LB Type 55 ...
Page 56: ...L Type 56 ...
Page 57: ...62EAB00 2019 Sep ...