Finish Thompson CQC-HD - Manual (Page 10)

Connecting the CQC-HD to the Vehicle
CAUTION:
Prior to connecting the CQC-HD to the vehicle, check for proper operation of the fill pump.
With the three-way valve on the side of the CQC-HD cabinet set to “quick change” and the
valve on the end of the green fill hose closed, turn on the CQC-HD fill pump (switch located
on the front left side of the cabinet). Check to see that the pump is pumping liquid through
the bypass loop (clear hose) into the fill container. If so, proceed with attachment to the
vehicle. If not, see the maintenance section for maintenance to pump and/or check valve.
1. Loosen the hose clamp that holds the upper radiator hose to the neck of the radiator. Use a nut-
driver, screwdriver, or hose clamp pliers (depending on the type of clamp)
to loosen the clamp.
2. Remove the upper radiator hose from the neck of the vehicle’s radiator
(Figure 3). Be careful not to damage the radiator inlet or hose while
removing.
3. Determine the proper flex-hose size for the vehicle’s radiator. Choose the
correct quick disconnect/step adapter (hard gray plastic) and couple the
flex hose to the step adapter. Attach the black drain hose from the CQC-
HD to the removed, open end of the upper radiator hose by inserting its
hard plastic step adapter into the upper radiator hose. With a hose
clamp, seal the upper radiator hose tightly to the best fit step on the
step adapter.
HINT: In some cases, the size difference between the upper radiator hose and the step adapter
may seem too large. It is okay to tighten down the hose clamp to seal up to a 1/4 inch gap.
A worm gear-type clamp tightened with a nut driver works best.
4. Attach the “best fit” flexible hose adapter to the neck of the radiator’s inlet and secure it tightly
using the supplied hose clamp. Be careful not to damage the radiator’s inlet.
5. Determine the proper flex-hose size for the vehicle’s radiator. Choose the correct quick disconnect/
step adapter (hard gray plastic) and couple the flex hose to the step adapter. Attach the green fill
hose from the CQC-HD by inserting its hard plastic 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
hard plastic step adapter. Connections should look similar to figure 4.
!
CAUTION:
Check and assure that all hoses, rags, tools, or other objects will be clear from moving parts of
the vehicle.
!
8.
Figure 4
Figure 3
HINT: It may save time on the coolant exchange process if you attach the CQC-HD drain and fill
hose connections to the vehicle’s radiator while the engine is cold. Keep both valves on the hoses
closed at this point.