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T T o o o o l l
Tester
Tester
M M e e g g g g e e r r
3-22
3-22
Inspection of force of spring
Inspection of force of spring
Hook a spring scale to the brush SPRING and check if both
Hook a spring scale to the brush SPRING and check if both
springs have the same tension. Then make sure of equal
springs have the same tension. Then make sure of equal
force on 2 springs.
force on 2 springs.
3 W
3 W
Force of
Force of
spring
spring
4 4 W W
If the SPRING and/or the brush
If the SPRING and/or the brush holder were rusted, replace them.
15
15.2 .2 In Insp
spec ecti ting
Inspect with the
Inspect with the following procedure after assembling.
Abnormal noise and spark
Abnormal noise and spark
Operate the motor. Then make sure that abnormal noise is not heard and sparks of brushes are
Operate the motor. Then make sure that abnormal noise is not
If the motor is tested by itself, fix the motor on a
If the motor is tested by itself, fix the motor on a work bench securely. The motor may move suddenly when starting. Test the
motor with the slow speed.
motor with the slow speed.
(1)
(1) Be sur
Be sure to se
e to secure E
(2) Apply 1/
(2)
Apply 1/4 voltag
4 voltage of the batt
(3)
(3) Con
Connec
nect wi
t wires
S S p p e e c c i i f f i i c c R R e e s s i i s s t t a a n n c c e e
Infinite at x 1k range e
Infinite at x 1k rang
0 0 . . 5 5 M M o o r r g g r r e e a a t t e e r r ( ( D D C C 5 5 0 0 0 0 V V ) )
I I t t e e m m
1 1 . . 3 3 t t o o 1 1 . . 6 6 t t o o n n m m o o d d e e l l
1 1 . . 8 8 t t o o 2 2 . . 0 0 t t o o n n m m o o d d e e l l
holder were rusted, replace them.
ng Mo
Moto tor r
following procedure after assembling.
cure EPS mo
PS motor as
tor ass'y on a w
s'y on a work be
ork bench.
e of the battery (abo
ery (about 12V) to ca
ut 12V) to carry out te
res as f
as foll
ollows
ows. .
1 1 . . P P o o s s i i t t i i v v e e
1 1 . S
. Sp p r r i i n n g g s s c c a a l l e e
S S t t a a n n d d a a r r d d
7 7 N N
5 5 N N
5 5 N N
CAUTION
CAUTION
heard and sparks of brushes are not seen.
CAUTION
CAUTION
work bench securely. The motor may move suddenly when starting. Test the
nch.
rry out testing
sting. .
2 2 . . N N e e g g a a t t i i v v e e
CHAPTER 3 MOTOR
CHAPTER 3 MOTOR
2
2
1
1
2 2 . S
. Sp p r r i i n n g g
not seen.
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