Section 05: COOLING SYSTEM
PA1553
8
CAUTION
Always test the solution before adding water
or antifreeze.
8. If cooling system is not at the proper
protection level. Mix coolant/water solution to
the proper concentration before adding to the
cooling system
9. Use only non-chromate inhibitors.
10. Distilled water is recommended.
4.7.1 Coolant Not Recommended
o All antifreeze and coolant containing
phosphorous;
o Automotive type coolants;
o Methoxy propanol-base antifreeze;
o Methyl alcohol-base antifreeze;
o Sealer additives or antifreezes containing
sealer additives.
4.7.2 Additives Not Recommended
o Soluble Oils;
o Chromates.
WARNING
Never remove filler cap while coolant is hot.
When coolant is at ambient temperature,
release pressure from system by turning the
pressure cap counterclockwise 1/4 turn; then
remove filler cap slowly. A sudden release of
pressure from the heated cooling system can
result in severe burns from the expulsion of
hot coolant fluid.
4.7.3 Vehicles Without Coolant Filters
Refer to Nalcool 3000 with Stabil-Aid bulletin
annexed to the end of this section for preventive
maintenance (at each oil change) and initial
treatment instructions (each time the cooling
system is drained and flushed).
4.7.4 Vehicles With Coolant Filters
Change the coolant precharge element filter for
a maintenance element filter at initial oil changes
(see Specifications at the end of this section)
and replace existing maintenance element filter
with a new one as per "COOLANT FILTER" in
this section. A precharge element filter must be
installed each time the cooling system is drained
and flushed before installing a maintenance
element filter.
NOTE
The coolant filter contains inhibitors.
5. DRAINING COOLING SYSTEM
Use the following procedures to drain the
cooling system partially or completely.
5.1 VEHICLES EQUIPPED WITH CENTRAL
HVAC SYSTEM
FIGURE 5: HEATER LINE SHUTOFF VALVES (W5)
FIGURE 6: HEATER LINE SHUTOFF VALVES (W0 & WE)
To Next Page
Loading...
Need help?
General
