ELECTRICAL
4222983 Second Edition 4-129
4
Key Switch Test
See Figure 4-82.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Remove key switch. (See “Key Switch” on
page 4-153.)
Figure 4-82
3. Move key switch to the ON position.
4. Set the meter to read ohms.
5. Touch meter leads to each other and confirm a
resistance value of 0.0 ohms.
6. Measure the resistance between terminals (2 and 3).
Is the resistance value 0.02 ohms or less?
YES Proceed to step 7.
NO Key switch is faulty; replace key switch.
7. Move key switch to the START position and measure
the resistance between terminals (1 and 2, 1 and 3,
and 2 and 3).
Are the resistance values 0.02 ohms or less?
YES Key switch is good.
NO Key switch is faulty; replace key switch.
Mow Switch Test
See Figure 4-83.
NOTE
Test the component utilizing the LCD switch status menu
before performing the component bench test. (See
“Switch Test” on page 4-85.)
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Remove mow switch. (See “Rocker Switches” on
page 4-153.)
Figure 4-83
3. Pull mow switch knob to the ON position.
4. Set the meter to read ohms.
5. Touch meter leads to each other and confirm a
resistance value of 0.0 ohms.
6. Measure the resistance between terminals (1 and 2).
Is the resistance value 0.02 ohms or less?
YES Proceed to step 7.
NO Mow switch is faulty; replace mow switch.
7. Push mow switch knob to the OFF position.
8. Measure the resistance between terminals (1 and 2).
Is the resistance value 0.02 ohms or less?
YES Mow switch is faulty; replace mow switch.
NO Mow switch is good.
Required Tools or Equipment
Digital Multimeter or Ohmmeter
TN0676
1
2
3
Required Tools or Equipment
Digital Multimeter or Ohmmeter
TN2737
1
2
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