22
Electrical Systems
Pressure Switches
Sensors
Description:
Pressure switch
Temperature
Senders
Pressure operated switches that control current flow
for lights and gauges.
Types:
Engine oil pressure
Hydraulic oil pressure
Filter restriction senders
Testing
Pressure switches are tested with an Ohmmeter.
Look for continuity when closed, infinity when open.
They can be normally open and close at a certain
pressure, or normally closed and open at a certain
pressure.
Temperature Senders and Switches
Description:
Temperature controlled switches and senders.
Types:
Engine coolant temperature switch and sender
Hydraulic system temperature switch and sender
Testing Temperature Switches
Temperature Senders
Temperature switches are tested with an Ohmmeter.
With the ohmmeter check if the switch is open or
closed. Submerse the sensing bulb in hot water and
watch for switch change. (Note: The switch actuation
temperature is usually noted on the switch).
Temperature senders are tested with an Ohmmeter.
Measure the resistance of the sender, then
submerse the sensing bulb in hot water and watch
for resistance change.
Toro University Technical Training
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 09170SL |
| Download File |
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| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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