8
WARNING: FAILURE TO PROPERLY MATCH THE FLATS
OF THE PISTON TO THE FLAT OF THE SHAFT WILL
RESULT IN SEVERE DAMAGE TO THE UNIT.
6. Place the fan plate assembly onto the shaft, the washer
(9) and retain with locknut (12). Torque to 90-100 ft.
lbs.
7. Install cotter pin (1) and bend to hold in place. Install
dust cap (5). NOTE: Never back torque off to align the
cotter pin. If necessary increase torque slightly until
slots in locknut and hole in shaft are in line.
TEST
1. With no air pressure applied, the torque required to rotate
the clutch must not exceed 150 in. oz.
2. With 75-80 psi applied, the fan plate must separate from
the pulley and rotate freely.
3. Perform the leakage checks outlined in the manual.
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 fan 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.
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 instruction and piping diagrams are
packed with each FD-L
™
fan clutch.
It is recommended that only cooling fans approved by the
vehicle or fan manufacturer be installed on the FD-L
™
fan
clutch.
Maximum weight of fan blade assembly is 15 lbs.
Maximum thickness of spacers between fan and hub plate
is 1-1/2”.
BW1603 © 2004 Bendix Commercial Vehicle Systems LLC All rights reserved. 4/2004 Printed in U.S.A.
