Eagle EG6088K, Руководство по эксплуатации, Страница: 15 / 24

- 12
press spring.
Trouble-Shooting for Motor:
▼
▼
▼
W
W
W
a
a
a
r
r
r
n
n
n
i
i
i
n
n
n
g
g
g
:
:
:
Only Qualified Electrician Can Change and Adjust The carbon Brush and Commutator.
Item Symptoms Possible Causes
1 All copper plates turn black. The pressure of brush is incorrect.
2 The commutator turns black
in a certain order and in
groups.
Short circuit in the commutator or armature coil; poor
welding or disconnection between the commutators
and the armature coil.
3 The commutator turns black
in disorder.
The central line of the commutator deviates or its
surface is not round and not smooth.
4 The brush wears out, turns
colors and become broken.
The motor vibrates; the clearance between the brush
and its holder is too big; the clearance between the
brush and commutators is too big; the mica between
different commutators extrudes; the brush is made by
wrong materials; the brush is wrong in type.
5 Big sparkles The motor is over-loaded; the commutators are not
clean, not round or not smooth; mica or some
commutators extrude; the brush is not ground
properly; the brush is big in pressure; the brush is
wrong in type; the brush is jammed in the brush
holder; the brush holder become loose or vibrating;
the polarity and sequence of magnetic poles become
wrong.
6 The brush and its wires get
hot.
Big sparkles of the brush; poor contact between brush
and soft wires; small section area of soft wires.
7 The brush is noisy The surface of the commutators is not smooth.
7.4 Maintenance of the Speed Controller
The speed controller of the vehicle is wholly imported, which adopts high frequency MOS technology to realize
the control of speed, torque and brake with smoothness, silence, high efficiency and energy-save.
·
Prevent the vehicle runs way when starts. When the vehicle starts, the controller will inspect signal from the
accelerator, if signal exceeds 20%, the HPD (protection unit in the controller) will prohibit the output of
controller.