Troubleshooting & repair, Oil pressure - temperature switch test (continued) – Lincoln Electric PIPELINER 200 User Manual

Page 101

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TROUBLESHOOTING & REPAIR

F-31

F-31

PIPELINER® 200

OIL PRESSURE - TEMPERATURE SWITCH TEST (CONTINUED)

PROCEDURE
1. With the engine not running, and at room

temperature, locate the Temperature

Switch/Sender.

2. Remove the two leads from the switch.
3. Using the ohmmeter check the resistance from

terminal WK to case ground. This is a normal-

ly open switch and should read a very high

resistance.

4. This switch should close at approximately

230F. This over temperature condition would

shut off the engine.

5. Using the ohmmeter check the resistance from

terminal G to case ground. At room tempera-

ture this resistance should be approximately

520 ohms.

6. With engine running the resistance from termi-

nal G to case ground should be as follows.

• 140F equals approximately 134 ohms
• 194F equals approximately 51 ohms
• 212F equals approximately 39 ohms
7. Replace the two leads previously removed.

Temperature Switch/Sender Resistance Test. S25162 (Kubota and Perkins Only)

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