Jacobsen AR3, Technical/Repair Manual

Page: 127 / 342

4-70 4181384 First Edition
ELECTRICAL
4
Engine Oil Pressure Switch Test
See Figure 4-45.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-7.)
2. Check the engine oil level. Add oil as needed. (Refer
to “Safety, Operation & Maintenance Manual” for oil
specification.)
Figure 4-45
3. Turn the key switch (2) to the run position.
Does the engine oil pressure warning light (1)
come on?
YES Proceed to step 4.
NO Check the instrumentation circuit. (See
“Instrumentation Circuit Schematic” on
page 4-48.)
4. Start the engine. (Refer to “Safety, Operation &
Maintenance Manual”.)
Does the engine oil pressure warning light (1) go
out when the engine is running?
YES The warning light is good.
NO Stop the engine immediately and check the
engine. (Refer to the engine manufacturer’s
manual.)
TN1066
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