7. engine prestart checks – Miller Electric Big Blue 502P User Manual
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4-7. Engine Prestart Checks
.
Check all engine fluids daily.
Engine must be cold and on a level surface.
Unit is shipped with 20W break-in oil.
Automatic shutdown system stops engine if
fuel level or oil pressure is too low, or coolant
temperature is too high.
Follow run-in procedure in engine manual.
If unburned fuel and oil collect in exhaust
pipe during run-in, see Section 9.
Fuel
Y Do not use gasoline. Gasoline will
damage engine.
The unit is shipped with enough fuel to pre-
vent air from entering fuel system but not
enough fuel to prevent low fuel shutdown.
Add fresh diesel fuel before starting to pre-
vent low fuel shutdown (see engine mainte-
nance label for fuel specifications).
Do not run out of fuel or air will enter fuel sys-
tem and cause starting problems. See en-
gine manual to bleed air from fuel system.
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).
Coolant
Check coolant level in radiator before start-
ing unit the first time. If necessary, add cool-
ant to radiator until coolant level is at bottom
of filler neck.
Check coolant level in recovery tank daily.
If necessary, add coolant to recovery tank
until coolant level is between Cold Full and
Hot Full levels. If recovery tank coolant level
was low, also check coolant level in radiator.
Add coolant if level is below bottom of radia-
tor filler neck.
Engine coolant is a mixture of water and
ethylene glycol base antifreeze. Add anti-
freeze to mixture if using the unit in tempera-
tures below −34
°
F (−37
°
C).
Keep radiator and air intake clean and free
of dirt.
Y Incorrect engine temperature can
damage engine. Do not run engine
without a properly working thermo-
stat and radiator cap.
.
To improve cold weather starting:
Use Starting Aid switch (see Section
Keep battery in good condition. Store
battery in warm area off concrete sur-
face.
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
Full
Ref. 802 168
Full
Capacity: w/Overflow
Tank 12 qt (11.4L)
Diesel
Full
Hot Full
Cold Full
Check radiator coolant level when
fluid is low in recovery tank.
Coolant Recovery Tank