TM 5-2420-231-23-1
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OIL PRESSURE CHECK
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WARNING
Lubricating oil is very slippery. Immediately wipe up any spills. Failure to follow this
warning may result in injury or death to personnel.
CAUTION
Do not operate engine with oil pressure switch passage open (no oil pressure switch or
gauge installed). Failure to follow this caution will cause damage to machine.
1. Disconnect main chassis wiring harness connector (Figure 2, Item 4) from oil pressure sending unit
(Figure 2, Item 2).
2. Remove oil pressure sending unit (Figure 2, Item 2) and O-ring (Figure 2, Item 3) from engine (Figure 2,
Item 1). Discard O-ring.
Figure 2. Oil Pressure Sending Unit.
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