7 - 4
DPL-25S • DPL-30S • DPL-35S Super Series
Part No. 40462
September 2016
Section 7 - Repair Procedures
2-2
How to Test the AC Contactor
- AC Models
1 Fully lower the platform, turn the key switch off
and disconnect the power supply.
2 Open the ground control box and locate the AC
contactor.
3 Label and then disconnect all wiring from the
contactor.
4 Connect the leads from an ohmmeter to the
following terminal combinations and check the
continuity/resistance.
Test
Desired result
terminal 0 to 1
80 to 85
Ω
all other terminal combinations
no continuity
(infinite
Ω
)
2
1
8
6
4
0
Ground Control Box
2-1
How to Test the Transformer
- AC Models
1 Fully lower the platform, turn the key switch off
and disconnect the power supply.
2 Open the ground control box and locate the
transformer.
3 Label and then disconnect all wiring from the
transformer.
4 Connect the leads from an ohmmeter to the
following terminal combinations and check the
resistance.
a
yellow wire
b
black wire
c
white wire
d
brown wire
e
blue wire
f
red wire no. 1
g
red/yellow wire
h
red wire no. 2
d
c
b
a
h
g
f
Test
Desired result
brown wire to blue wire
20 to 22
Ω
black wire to white wire
16 to 19
Ω
yellow wire to white wire
16 to 19
Ω
red/yellow wire to red wire no. 1
0.5 to 1.5
Ω
red/yellow wire to red wire no. 2
0.5 to 1.5
Ω
red wire no. 1 to red wire no. 2
0.5 to 1.5
Ω
yellow wire to black wire
0.5 to 1.5
Ω
all other wire combinations
no continuity
(infinite
Ω
)
e
