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
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