7. engine prestart checks – Miller Electric Big Blue 502P User Manual

Page 21

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OM-491 Page 17

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

5-1).

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

(see Section 7-2).

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

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