Finish Thompson CQC2 - Manual (Page 8)

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HINT: In some cases, the size difference between the UPPER radiator hose and the step adapter may seem too
large. It is OK to tighten down the hose clamp to seal up to a 1/4" gap. A “worm-gear” type clamp tightened with a
nut driver works best.
4. Attach the “best fit” flexible hose adapter to the thermostat housing’s inlet and secure it tightly using the sup
plied hose clamp.
5. Attach the BLACK drain hose from the CQC2 by inserting its step adapter into the open end of the flexible
hose adapter. With a hose clamp, seal the flexible hose adapter tightly to the “best fit” step on the step adapter.
CAUTION: Check and assure that all hoses, rags, tools, or other objects will be clear from moving parts of the
PERFORMING THE QUICK CHANGE:
WARNING: Keep clothing, hair, hands, etc. away from all moving parts of the vehicle.
CAUTION: Continuous monitoring of the quick change process is required.
Leaving the vehicle unattended while operating this equipment can result in
damage to the engine, vehicle, and/or equipment.
1. OPEN the Fill Valve on the GREEN fill hose. The level in the fill bucket
will begin to drop, then stop. Keep the drain valve on the black drain hose
closed at this time.
2. Start the engine of the vehicle.
3. OPEN the drain valve on the black drain hose. Watch the level in the fill bucket. If the level does not drop, or
stops dropping, CLOSE the drain valve. After approximately 30 to 60 seconds, RE-OPEN the drain valve.
HINT: The coolant change can occur only if the vehicle’s thermostat is open.
To help get the vehicle up to normal operating temperature, it may be neces
sary to raise the RPM’s of the engine to warm it up before the level in the Fill
Bucket will continue to drop.
4. CLOSE the fill valve on the green fill hose.
5. Allow the engine to run for 10 seconds after closing the fill valve, then TURN THE
ENGINE OFF. This lowers the coolant level in the radiator to help prevent coolant
spilling when reattaching the UPPER radiator hose.
CAUTION: Failure to turn vehicles engine off ten seconds after closing Fill Valve
can result in damage to the vehicle.
6. CLOSE the Drain Valve on the BLACK Drain Hose.
7. Remove the CQC2 from the vehicle. Reconnect the UPPER radiator hose to the radiator (or the thermostat
housing for “Special” cooling systems) and clamp securely.
8. Remove the vehicle’s radiator cap and top off the radiator using the remaining coolant in the fill bucket. While
holding the GREEN fill hose over the radiator’s opening, SLOWLY open the fill valve to allow the top off coolant
to flow. Also, open the vehicle’s coolant overflow bottle and fill to the proper level. Return both caps and
secure.
9. Start the engine of the vehicle and check for leaks.
Repeat this procedure until two quarts remain in the fill bucket.
NOTE: Opening and closing the drain valve as described will protect vehicles
with the thermostat located ahead of the water pump (“reverse flow” cooling
systems). This procedure prevents the old coolant from being pumped out of the
engine block prematurely when the new coolant is restricted by a closed thermostat.