MOTOR AND CONTROL SYSTEM
37
DCS-1600
6-1 Inspecting motor and control board
1. Separate motor cover. (Refer to section 4-5)
2. Remove battery connection terminal (C) of con-
trol board from motor cover.
3. Determine whether control board is short-cir-
cuited between positive terminal (c1) and negative
terminal (c2).
Connect one probe of multimeter to terminal (c1).
Connect the other probe to terminal (c2). Multi-
meter should indicate infinite resistance. If not,
replace control board with new one.
4. Determine whether motor is short-circuited
between terminal “4” and “5” of motor’s 5-pole ter-
minal (D).
Connect one probe of multimeter to terminal “4”.
Connect the other probe to terminal “5”. Multimeter
should indicate infinite resistance. If not, replace
motor with new one.
5. Remove control board (B) from motor cover.
6. Inspect the following:
- Conductive substances (water, metal pieces, etc.)
on the surface of control board (B)
→ Remove debris, clean and dry components
- Burnout and/or damage of control board (B)
→ Replace
- Damage of each terminal on control board (B)
→ Replace
7. Remove motor (A) from motor cover.
8. Inspect the following:
- Damage to terminals on motor → Replace
- Burnout of motor windings → Replace
- Hard rotation and damage → Replace
C
c1
c2
4 5
D
B
A
