Genie Z-45/22, Service Manual

Page: 172 / 205

Part No. 29487 Genie Z-45/22 7 - 35
Service Manual - First Edition Section 7 - Repair Procedures
no continuity
(infinite
Ω
)
no continuity
no continuity
no continuity
continuity (zero
Ω
)
continuity
160 to 170
Ω
no continuity
(infinite
Ω
)
no continuity
no continuity
no continuity
continuity (zero
Ω
)
continuity
8-1
Control Relays
Relays used for single function switching are
single pole double throw (SPDT) switches. Two
function switching requires a double pole double
throw (DPDT) relay.
How to Test a Double Pole Double
Throw Relay
This procedure covers fundamental relay testing
and does not specifically apply to all varieties of
relays.
1 Turn the keyswitch to the off position and
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 13 and 14 represent the coil and
should not be tested in any other combination.
a terminal no. 5
b terminal no. 1
c relay
d terminal no. 13
e terminal no. 9
f terminal no. 12
g terminal no. 14
h terminal no. 4
i terminal no. 8
Ground Controls
g
f
h
i
b
a
c
d
e
Test Desired result
terminal 13 to 14
terminal 8 to 5,4,1,12 & 9
terminal 5 to 8,4,1,12 & 9
terminal 4 to 8,5,1 & 9
terminal 1 to 8,5,4 & 12
terminal 4 to 12
terminal 1 to 9
4 Connect 12V DC to terminal 14 and a ground
wire to terminal 13, then test the following
terminal combinations.
Test Desired result
terminal 8 to 1,5,9 & 4
terminal 5 to 1,4,8 & 12
terminal 4 to 1,5,9,8 & 12
terminal 1 to 5,9,4,8 & 12
terminal 8 to 12
terminal 5 to 9