Flex-a-Lite 67100 Cherokee XJ Radiator Only Kit Fits 1987-2001 Jeep Cherokee XJ - Manual (Page 4)

Initial Start-up and Adjustment Procedure:
Turn ignition on. After 6 seconds, LED #L4 should light up (Refer to wiring connections diagram). If not, 1.
check to make sure that there is 12 Volts at terminal #9 on VSC. The delay is to allow starter to start the
vehicle without the fans drawing any power.
With your engine running, engage the A/C. The fans should come on and cycle with the A/C compressor. 2.
LED’s #L1, L3 and L4 should be lit when fans are running. If they do not turn on, verify that the A/C clutch
is engaged and make sure you have a positive signal when the clutch is engaged at terminal #8 on the
VSC. Shut off A/C and let engine continue to idle, or drive the vehicle a short distance to bring the engine to
operating temperature (IMPORTANT: You must monitor the vehicles temperature gauge).
Verify that operating temperature has been reached by feeling the upper radiator hose. Hot water should 3.
be flowing through hose into the radiator. If the fans have not cycled on yet, slowly adjust the screw counter
clockwise on the VSC until the fans cycle on. Turning the screw further in this direction will keep the engine
at a lower temperature, and turning clockwise will keep the engine at a higher temperature. (See VSC Dia-
gram) NOTE: THE TOTAL MOVEMENT OF THE ADJUSTMENT SCREW IS ABOUT ¾ OF A TURN. TURN-
ING THE SCREW BEYOND THE LIMITS WILL DAMAGE THE UNIT! Once desired temperature is set, let
the engine continue to idle and make sure the fans will cycle to maintain desired temperature. When fans
are running, LED.s #L1 and L4 should be lit.
WIRING DIAGRAM - MODEL #67108
Rev. 06-12-13 98108 Page 4 of 6
More Variable Speed Control features:
At the set temperature, the fans will come on at 60%; this reduces the load on your charging system. If
the temperature rises, the fan speed will increase. If your set temperature is 195°F, then between 195°
and 205° the fan speed will increase from 60% to 100%. So after a 10-degree rise from the set point,
the fans will be running at 100%.
thick red
thick black