1.Position the electric fan against the back of the radiator, and mark the holes for mounting.(
tions may have A/C condensers and/or transmission
coolers on the front of the radiator. Additional adjustments or modifications may be necessary for installation
)
2. Rotate fan blades to make sure they are free of obstructions.
3. With a small phillips screwdriver pass through the
marked holes, carefully spread the fins to allow easy
passage for the nylon bolts (
for the double fan unit
then twist the bolts through the radiator.
4. Slide the rubber washer, then the nylon washer onto the nylon bolt and finger tighten nylon
nuts until snug.
5. Once again, rotate fan blades to insure that they are free of obstruction.
control & A/C relay
Diagram A
Nylon Nut
Some applica-
Nylon
Washer
4 for the single fan unit, 4
). Pass the bolts through the shroud holes
Rubber Disk
Sp acer
Nylon Bolt
OR
Radiator Support Channel Or Frame Installation
(SEE DIAGRAM “B”)
1. Attach frame mounting brackets to fan using
nylon bolts, cut them to 1",
use nylon nuts to secure.
2. Position fan to desired location, mark holes on
radiator channels or frame.
3. Rotate fan blades to insure that they are free
of obstruction.
4. On the marked hole locations drill 13/64" holes.
5. Secure the fan to radiator using the provided
1/4" x 1" self tapping screws.
6. Check fan rotation.
rev . 05-18-05 99876 Page 1 of 3
Fan Wiring Instructions
Step 1: Locate mounting point for control
Locate a mounting point for control near inlet side of radiator. Control needs to be placed within 18"
of radiator inlet hose. You may want to mount next to radiator on fender well. Mount control using
screws provided.
Step 2: Wire the fan motors (refer to Wiring Diagram, below)
Using the bullet connectors provided, attach a length of the large diameter (12 AWG)
white
motor wires at the fan. Once the fan is in place, these will attach to the control module. If mounting
the control somewhere in the engine compartment, leave enough wire to reach the control module,
but do not connect yet.
motor wires at fan. Attach a length of the large diameter (12 AWG)
black
wire to the
red
wire to the
black
Step 3: Connect the motor wires to the control module
(Red wire to the "M+" terminal and black wire to the "M-" terminal).
Step 4: Disconnect the negative battery lead for safety while finishing the wiring. Use the large
diameter red wire to run power directly from the battery positive (+) terminal to the "B" terminal on the
control module. Connect the fuse holder in-line with this wire, as shown, but do not insert the fuse
yet. Use the blue female, ring, and butt connectors provided.
Step 5: Use the large diameter black (12 AWG) wire to run from the negative (-) battery terminal to
the "G" terminal on the control module. Use the blue female connector and ring connector provided.
Step 6: Use the small diameter red wire (14 AWG) to connect the "+" terminal on the control module
to a positive power source.
off the fan when the engine is turned off. Attach this wire to an uninterrupted (always hot)
power source to allow the fan to continue running after the engine is shut off.
female connector and fuse taps (included) if necessary.
Step 7: (Optional) For air conditioning control (if desired) connect the "C" terminal on the control
module to the
AWG) wire. Using a voltmeter, determine which wire coming from the compressor is the
trigger wire. Use the 3-way connector (included) to tap into this wire and send a signal to the fan
control module. The fan will cycle on and off with the A/C clutch when the A/C is turned on.
positive
NOTE: Attaching this wire to an ignition-controlled source will shut
Use the blue
wire that triggers the A/C compressor using the small diameter green (14
positive
rev. 05-18-05 99876 Page 2 of 3
Step 8: (Optional) For manual switch operation, use Flex-a-lite p/n 31148. Connect the switch as
shown on the wiring diagram (previous page). Connect the "M" terminal on the control module to the
"1" terminal on the switch. Connect the "2" terminal on the switch to a positive 12v power source.
Connect terminal "3" on the switch to a good ground (for switch illumination).
NOTE: To prevent
thermostatic activation (if only manual switch operation is desired), omit the lead to the "+"
terminal of the control box. "B", "G", "M+" and "M-" must remain connected. If not using a
Flex-a-lite manual switch, do not connect a ground wire to the switch!
Step 9: Use the zip ties provided to secure the wires and prevent them from interfering with fan
blades, belts, and pulleys in the engine compartment. Reconnect the battery and insert the fuse
provided.
Step 10: Insert the temperature probe into the radiator fins
Install temp. probe near inlet hose...
then replace the insulator cap.
Locate the inlet hose from the engine to the radiator. Remove the black insulator cap and insert the
temp. probe through the radiator fins near the inlet hose. Reinstall the black insulator cap.
Step 11: Adjust the temperature control knob on the control box
If you disconnected any hoses or drained coolant to install the fan, reconnect the hoses and refill the
radiator. Press the control knob (included in wiring kit) onto the control box shaft. Turn the knob
clockwise until it stops. Start the engine and allow it to idle. Using a hand held thermometer (positioned near the inlet hose) or the vehicle's temperature guage, 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.
The Flex-a-lite Limited Warranty
Flex-a-lite Consolidated, 7213-45th St. Ct. E. Fife, W A 98424, T elephone No. 253-922-2700, warrant s to the original purchasing user , that all Flex-a-lite products to be free of defect s 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 limitation of
incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal right s and you may have other rights, which vary from state to st ate.
The Flex-a-lite warranty is in compliance with the Magnuson-Moss Warranty Act of 1975.
rev. 05-18-05 99876 Page 3 of 3
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