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OM-4409 Page 27
5-7. Engine/Compressor Prestart Checks
. Check all engine/compressor fluids
daily.
Engine must be cold and on a level surface.
Unit is shipped with 20W break-in oil. The
automatic shutdown system stops engine if
oil pressure is too low or coolant tempera-
ture is too high.
. This unit has a low oil pressure shut-
down switch. However, some condi-
tions may cause engine damage before
the engine shuts down. Check oil level
often and do not use the oil pressure
shutdown system to monitor oil level.
Follow run-in procedure in engine manual.
If unburned fuel and oil collect in exhaust
pipe during run-in, see Section 14.
Fuel
NOTICE − Do not use gasoline. Gasoline
will damage engine.
Add fresh diesel fuel before starting to pre-
vent air from entering the fuel system (see
engine maintenance label for fuel specifica-
tions). Leave filler neck empty to allow room
for expansion.
Engine stops if fuel level is low on units with
low fuel shutdown option. Do not run out of
fuel or air may enter fuel system and cause
starting problems. See engine manual to
bleed air from fuel system.
Engine Oil
After fueling, check oil with unit on level sur-
face. If oil is not up to full mark on dipstick,
add oil (see maintenance label for engine oil
specifications).
Compressor Oil
1 Compressor Oil Level Indicator (On
Tank)
Check oil with unit on level surface. Add oil
if oil is not up to full mark on indicator (see
maintenance label for oil specifications).
Cold Weather Starting
. To improve cold weather starting:
Use Starting Aid switch (see Section
6-1).
Keep battery in good condition. Store
battery in warm area.
Use fuel formulated for cold weather
(diesel fuel can gel in cold weather).
Contact local fuel supplier for fuel in-
formation.
Use correct grade oil for cold weather
(see Section 9-1).
Full
803 228
Diesel
Full
Full
1
Too
Low
Too
High
Engine Oil
Compressor
Oil