Install temp. probe near inlet hose...
then replace the insulator cap.
rev. 04-20-09 part no. 99678 Page 4 of 4
7.
Use the zip ties provided to secure the wires and prevent them from interfering with fan
blades, belts, and pulleys in the engine compartment. Insert the fuse provided.
8.
Locate the inlet hose from the engine to the radiator. Remove the black insulator cap
from the temperature probe then insert the temp. probe through the radiator fins near
the inlet hose. Reinstall the black insulator cap.
7.
Press the control knob (included in wiring kit) onto the control box shaft. Turn the knob
clockwise until it stops.
8.
Reconnect negative (-) battery cable to battery. Start the engine and allow it to idle.
Using a hand held thermometer (positioned near the inlet hose) or the vehicle’s tem-
perature gauge, monitor the temperature. When the coolant temp is slightly above
normal (or desired temp.), turn the knob counter-clockwise just until the fan turns on.
From now on, the fan should activate at this temperature setting. Adjust as necessary to
maintain desired temperature.
After the engine has been at normal operating temperature for ~45 minutes, adjust over-
flow tank coolant level to be at ~50% capacity.
W
W
W
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Wiring Instr
iring Instr
iring Instr
iring Instr
iring Instructions – Model #688 ONL
uctions – Model #688 ONL
uctions – Model #688 ONL
uctions – Model #688 ONL
uctions – Model #688 ONLY!
Y!
Y!
Y!
Y!
Wire the fan motor to power source (control unit or switch and relay if desired).
1.
Connect the colored wire from the fan motor to a 12 volt positive (+) source. Be sure to
connect an inline fuse holder with a 30 amp fuse to the positive (+) power wire to pro-
tect the fan motor and your vehicle’s electrical system from damage.
2.
Connect the black motor wire to a ground (-) source.
NOTE: failure to do this will result in incorrect operation and damage to the fan motor!
After the engine has been at normal operating temperature for ~45 minutes, adjust over-
flow tank coolant level to be at ~50% capacity.
The Flex-a-lite Limited Warranty
Flex-a-lite Consolidated, 7213-45th St. Ct. E. Fife, WA 98424, Telephone No. 253-922-2700, warrants to the original purchasing user, that all Flex-a-lite products to be free of defects
in material and workmanship for a period of 365 days
(1 year)
from date of purchase. Flex-a-lite products failing within 365 days
(1 year)
from date of purchase may be returned to
the factory through the point of purchase, transportation charges prepaid. If, on inspection, cause of failure is determined to be defective material or workmanship and not by misuse,
accidental or improper installation, Flex-a-lite will replace the fan free of charge, transportation prepaid.
Flex-a-lite will not be liable for incidental, progressive or consequential
damages.
Some states do not allow the exclusion or limitaion of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives
you specific legal rights and you may have other rights, which vary from state to state. The Flex-a-lite warranty is in compliance with the Magnuson-Moss Warranty Act of 1975.
