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Ryobi Homelite RY48ZTR75/100 Manual page 18

Electrical components troubleshooting and testing

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Testing PTO (Power Take Off) Switch
1. Mower Power OFF
2. DMM set to measure
3. Insert DMM probes where indicated.
When red button is PULLED OUT, the
switch is CLOSED (very LOW resistance or
continuity)
4. When red button is PUSHED IN, the
switch is OPEN (very HIGH resistance or
no continuity)
typical 12K Ohms when in circuit or open
when removed from circuit.
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Resistance
typically 0 Ohms
Note: Make sure
spade lugs are
secure. They should
5V
be locked in place
and should not come
loose if the wires are
pulled on.
Note: 3 terminals are not connected
18

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