Control Relays - Genie Z-25/8 Service Manual

First Edition • Third Printing
Test
Left position
terminal 1 to 2, 3, 4, 5 & 6
terminal 2 to 3
terminal 2 to 4, 5 & 6
terminal 3 to 4, 5 & 6
terminal 4 to 5 & 6
terminal 5 to 6
Center position
Right position
terminal 1 to 2
terminal 1 to 3, 4, 5 & 6
terminal 2 to 3, 4, 5 & 6
terminal 3 to 4, 5 & 6
terminal 4 to 5
terminal 4 to 6
terminal 5 to 6
Part No. 41314
Desired result
no continuity
(infinite W)
continuity
(zero W)
no continuity
(infinite W)
no continuity
(infinite W)
no continuity
(infinite W)
continuity
(zero W)
There are no terminal
combinations that will
produce continuity
(infinite W)
continuity
(zero W)
no continuity
(infinite W)
no continuity
(infinite W)
no continuity
(infinite W)
continuity
(zero W)
no continuity
(infinite W)
no continuity
(infinite W)
Genie Z-20/8N & Genie Z-20/8 & Genie Z-25/8
Section 7 • Repair Procedures
1-4

Control Relays

How to Test a Double Pole Double
Throw Relay
Relays used for dual function switching are double
pole double throw (DPDT) relays.
Electrocution hazard. Contact with
electrically charged circuits could
cause death or serious injury.
Remove all rings, watches and
other jewelry.
This procedure covers fundamental relay testing
and does not specifically apply to all varieties
of relays.
1 Turn the key switch to the
remove the key.
2 Label and then disconnect all the wiring from
the relay to be tested.
3 Connect the leads from an ohmmeter to each
terminal combination and check for continuity.
Terminals 7 and 8 represent the coil and
should not be tested in any other combination.
4
6
8
Bubble number represents the terminal number
PLATFORM CONTROLS
position and
OFF
2
1
3
5
7
7 - 7