Northern Lights and NL1066H3, Руководство оператора

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ONL2-2 7/13
29
Servicing
EGC: ETHYLENE GLYCOL CONCENTRATE
(ANTIFREEZE) continued
IMPORTANT
1. DO NOT use methyl alcohol or methoxy propanol base
EGC. These concentrates are not compatible with chemi-
cals used in supplemental coolant
additives. Damage can occur to rubber seals on
cylinder liners which are in contact with coolant.
2. DO NOT use an EGC containing sealer or stop-leak
additives.
3. DO NOT use EGC containing more than 0.1% anhy-
drous metasilicate. This type of concentrate, which is
intended for use in aluminum engines, may cause a gel-
like deposit to form that reduces heat transfer and coolant
fl ow. Check container label or consult with supplier.
SUPPLEMENTAL COOLANT ADDITIVE (SCA)
Supplemental coolant additive contains alkali. Avoid
contact with eyes. Avoid contact with skin. Do not
take internally. In case of contact immediately wash
skin with soap and water. For eyes, fl ush with large
amounts of water for at least 15 minutes. Call a physi-
cian. KEEP OUT OF REACH OF CHILDREN. Follow
all warnings on the container.
1. Additional SCA's should NOT be added to the
mixture of EGC/H
2
0 on initial fi ll up of engines
with a coolant conditioner-fi lter. A high SCA
concentration will result and can cause
silicate-dropout. When this happens, a gel-type deposit is
created in the cooling system which retards heat transfer
and coolant fl ow.
2. If additional SCA's are needed, prepare a mixture
of 50% quality water and 50%EGC (antifreeze).
Add liquid SCA at a rate of 3%, by volume.
Example: 30 mL of SCA per liter of H
2
O/EGC
mixture (1.0 fl oz of SCA per qt of H
2
O/EGC).
Add the resulting mixture to the cooling system in quart
increments. Run the engine for 2 hours and retest the
coolant. Continue process until SCA concentration meets
recommended levels.
3. SCA is available from your Northern Lights dealer in the
following sizes.
Pint - Part Number...............20-00002
1/2 gallon - Part Number.....20-00003
4. DO NOT use any coolant system additives
containing soluble oil .
COOLANT TESTING
1. Coolant test kits are available to allow on-site
evaluation of the coolant condition.
2. The kits use small strips of paper which are dipped into
the coolant. The paper changes color and
indicates the SCA concentration. It also indicates the
amount of EGC (antifreeze).
3. Test kits are available through your Northern Lights or
Lugger Dealer.
4 Pack - Part Number.......................20-00005
50 Pack - Part Number.....................20-00010
(Test strips have expiration dates - check container.)
SP15. CHECKING COOLANT LEVEL
The cooling water in the engine reaches extremely
high temperatures. You must use extreme caution
when working on hot engines to avoid burns. Allow the
engine to cool before working on the cooling system.
Open the fi ller cap carefully, using protective clothing
when the engine is warm.
1. Check the coolant level each day before starting the
engine.
2. Remove the pressure cap from the expansion tank and
check water level. In order to give the coolant
an opportunity to expand, the level should be about
1 3/4 in. (4-5 cm) below the fi ller cap sealing surface
when the engine is cold. When fi lling with
coolant, the venting cock on top of the turbocharger (for
engines fi tted with turbocharger) should be opened to
ensure that no air pockets form in the cooling system.
2. The pressure valve in the fi ller cap releases when the
pressure is approximately 7 PSI (0.5 bar). Use a cap
pressure tester to check cap if you suspect it is faulty.
4. The makeup coolant, added to compensate for loss or
leaks, must meet engine coolant requirements outlined in
previous section.
SP16. FLUSHING THE COOLING SYSTEM
The cooling water in the engine reaches extremely
high temperatures. You must use extreme caution
when working on hot engines to avoid burns. Allow
the engine to cool before working on the cooling
system. Open the fi ller cap carefully, using protective
clothing when the engine is warm.
revised 2-24-12