TP-5393 9/933-2 Scheduled Maintenance
Lubrication System
Your engine has a positive pressure lubrication system
and low oil pressure shutdown.
Low Oil Pressure Shutdown
The low oil pressure shutdown feature protects the
engine against internal damage if the oil pressure drops
below31/2psi± 11/2psi(24.1kPa)duetooilpumpfault
orothermalfunction. Itdoesnotprotectagainstdamage
due to operating with the oil level below the safe
range—it is not a low oil level shutdown. The only
protection against running out of oilis to check the level
regularly and to add oil as needed. Location of the low
oil pressure (LOP) switch is shown in Figure 3-1.
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1
1. Low Oil Pressure Switch
Figure 3-1. Low Oil Pressure Switch
Oil Check
Check crankcase oil level daily or before each start. To
check oil level, remove oil cap/dipstick assembly and
wipe dipstick clean (see Figure 3-3). Reposition
dipstick in crankcase and push it all the way down into
thetube. Remove dipstickand checkthe level. Oillevel
should read between max and min marks on dipstick.
Do not operate set if oil level exceeds the max mark or
registers below the min mark on dipstick. Figure 3-2.
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2
1. Max Mark
2. Min Mark
Figure 3-2. Lube Oil Level
NOTE
Do not check oil level when the set is in operation. The
engine must be stopped and on a level surface when
checking oil. Most accurate oil reading is obtained by
shutting down the generator and waiting several
minutes before checking oil.
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Figure 3-3. Oil Check
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