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Component Testing and Adjustment 7-13TP-5648 8/93

P1 ground P1-9 and ground Ohmmeter on R x 1 If good--zero ohms

connection scale. (continuity). Any other

reading indicates a poor

ground connection.

Low oil P1-15 and engine Ohmmeter on R x 1 If good--zero ohms

pressure block (ground) scale. (continuity). Then,

(LOP) safety NOTE: J4 and P4 must This test is not disconnect LOP switch lead

shutdown be connected to conclusive until the and isolate terminal. Meter

switch perform this test. temperature shutdown reading reading should

switches are checked. show an open circuit.

High water P1-15 and engine Ohmmeter on R x 1 If good--open circuit.

temperature block (ground) scale. Any continuity suggests

(HWT) safety NOTE: LOP switch that temperature switch(es)

shutdown lead should be removed are defective. Disconnect

switch and isolated. individual leads to determine

NOTE: J4 and P4 must which switch is defective.

be connected to

perform this test.

Rotor See separate paragraph See separate paragraph See separate paragraph