P/No:0950 2
D. INSTALLATION OF FANS
There are four stages involved in the installation of
your Davies, Craig Fan(s).
(i) Mounting the fan assembly.
(ii) Installation of the Thermatic Switch.
(Radiator Cooling)
(iii) Wiring.
(iv) Setting the Thermatic Switch.
(Radiator Cooling)
MOUNTING OF FAN ASSEMBLY
CONDENSER COOLING ONLY
1. If you’ve purchased the Thermatic Fan to cool
the A/C condenser, it should be mounted
upstream
. GO TO PARAGRAPH 4 (Radiator
Cooling).
RADIATOR COOLING
2. Remove the original belt driven fan and shroud.
After removing fan from the pulley, replace the
bolts in the water pump hub. You may need
washers (not provided) to replace the thickness of
the belt driven fan.
3. Decide which surface of the radiator you wish to
mount the fan(s). If you are fitting two fans it may
be necessary to fit the larger of the two upstream
and the smaller downstream, with as little overlap
as possible.
4. Pay particular attention to the markings/arrows
on the fan hub regarding the direction the fan
should face. These instructions must be followed
closely, whether you choose upstream or
downstream mounting.
Please note;
the direction
of rotation is indicated by the arrow on the fan
hub. Once the fan has been installed the arrow
may not be visible.
5. Position the fan(s) directly on the surface of the
radiator/condenser. Take care that the fan and
shroud does not foul any struts, engine pulleys,
bonnet latches etc., including when the bonnet is
closed.
6. For 8”, 9”, 10” and 12” fans, check that the wires
exit the motor downwards (i.e.: at 6 o’clock), to
ensure any condensation formed in the motor can
drain.
7. Depending on the space available and the
presence of a condenser core, you may prefer at
this point to remove the radiator from the vehicle
to ease the fitting procedure.
8. Separate the condenser/radiator fins at the four
points where the mounting bolts are to be passed
through the radiator between the tubes. Use a
pencil or ‘’Phillips head’’ screw-driver to separate
the fins, being careful not to damage the tubes.
9. Fix the fans(s) to the radiator/condenser using the
long bolts and nuts provided, together with the
fibre and steel washers as per above diagram.
NOTE:
Long bolts are supplied to accommodate
thick cores. Ensure that the protruding bolts do not
foul any other radiator cores or engine parts. Trim
with bolt cutters if necessary.
11. Before wiring, spin the fan by hand to ensure
free and unobstructed rotation.
THERMATIC SWITCHES
Davies Craig offers four Thermatic Switches to suit
various Thermatic Fan applications;
The Digital Electronic Thermatic Switch, Part #0444.
This Switch will operate two Thermatic Fans, either
twin fans for the radiator core or one on the radiator
and one on the condenser core. (12 Volt Only)
The Mechanical Thermatic Switch, Part #0401 –
suit 12v & 24v
