7
2. Turn fan plate assembly (20) over and install spacer
(12)concentric with inner race of previously installed
bearing. Pack grease (Chevron SR1 #2) around spacer.
Press in second bearing (13) seal side up until inner
race contacts spacer. Pressing fixture must contact both
inner and outer racer.
3. Install snap ring (14) flat side towards bearing.
FINAL ASSEMBLY
1. Support bracket, shaft, pulley assembly with the shaft
pointing up.
2. Install spring pack (8) onto pulley assembly and retain
with two 1/4 x 20 Phillips screws. Torque to 50-75 inch
pounds.
3. Install anti-rotational spring (17) making sure one end
of spring is engaged in notch of shaft (see Figure 12).
4. Install pressure plate (7) making sure end of anti-
rotational spring (17) is engaged in notch of spring collar.
Holes in pressure plate must slide over drive pins (9).
5. Press special washer (5) on hub of piston assembly
(16).
6. Lubricate I.D. of piston housing (15) and three o-rings
(3, 4, 6) with BW-655-M.
7. Install o-rings (6 & 4) onto piston (16) and install
o-ring (3) onto shaft.
8. Install piston (16) into piston housing (15) and install
unit onto shaft.
9. Install fan plate assembly (20) onto shaft and retain with
lock nut (3). Torque to 75 foot pounds.
10. Install and bend cotter pin (2) and replace cap (1).
INSTALLATION
1. Attach fan clutch unit to vehicle by installing cap nuts
and lockwashers through mounting bracket holes into
mating holes in engine bracket.
2. Reconnect air line to unit.
3. Adjust fan belts per vehicle manufacturer ’s
recommendation.
4. Replace fan on pressure plate with six cap screws and
lockwashers. Torque to 300-360 inch pounds. (Be sure
to install any spacers that were removed during
Disassembly.)
5. Perform service checks as previously outlined.
TEST
1. With no air pressure applied, the torque required to
rotate the clutch must not exceed 150 inch ounces.
2. With 70-75 psi applied, the fan plate must rotate freely,
separate from the pulley.
3. Perform the leakage checks outlined in the manual.
RETROFIT INSTALLATION INFORMATION
To determine which fan clutch piece number should be
purchased when retrofitting existing equipment, consult the
nearest authorized Bendix distributor for assistance.
Complete installation instructions and piping diagrams are
packed with each FD-2
™
fan clutch.
It is recommended that only cooling fans approved by the
vehicle or fan manufacturer be installed on the FD-2
™
fan
clutch.
•
Maximum weight of fan blade assembly is 30 lbs.
•
Maximum R.P.M. of 28 inch fan is 2700.
•
Maximum R.P.M. of 34 inch fan is 2100.
•
Maximum thickness of spacers between fan and hub
plate is 1-1/2".
