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5

FIGURE 10

27/32” DRILL THRU

(2 HOLES FOR 3/4" BAR)

MATERIAL O.H.T.S. TUBING

HDN & DRAW RC 40-45

.235 + .002 CENTERED

(4 LUGS)

2.125 + .010

2-3/4”

1/32” FLAT

4-7/8”

5-1/8”

6”

6.

Never exceed manufacturer’s recommended
pressures.

7.

Never connect or disconnect a hose or line
containing pressure; it may whip. Never remove a
component or plug unless you are certain all
system pressure has been depleted.

8.

Use only genuine Bendix

®

 replacement parts,

components and kits. Replacement hardware,
tubing, hose, fittings, etc. must be of equivalent
size, type and strength as original equipment and
be designed specifically for such applications and
systems.

9.

Components with stripped threads or damaged
parts should be replaced rather than repaired.  Do
not attempt repairs requiring machining or welding
unless specifically stated and approved by the
vehicle and component manufacturer.

10. Prior to returning the vehicle to service, make

certain all components and systems are restored
to their proper operating condition.

REMOVAL

1. Remove the six cap screws and lockwashers that attach

the fan to the fan hub.

2. Remove fan. NOTE: Pay particular attention to any

spacers that may be installed between fan and pressure
plate.

3. Loosen fan belts.

4. Disconnect air line to fan clutch.

5. Remove cap nuts and lockwashers from mounting

bracket and remove unit from vehicle.

DISASSEMBLY (see Figure 9)

1. Remove dust cap (1) from end of fan hub.

2. Remove cotter pin (2) and nut (10) from end of shaft.

3. Remove fan plate (20) assembly and set aside.

4. Remove piston housing (15), remove piston (16) from

housing, remove two o-rings (4 & 6) from piston and one
o-ring (3) from shaft.

5. Remove pressure plate (7).

6. Remove anti-rotational spring (17) from shaft.

7. Remove two 1/4 x 20 Phillips screws and lift off spring

pack (8).

8. Disengage lock tab on lockwasher (19) and remove

lock nut (18), using a spanner tool (as shown in Figure
10). 
Remove lockwasher(19).

9. Support the backside of the pulley so that the shaft

bracket assembly can be pressed down far enough to
remove the pulley assembly. Since the bearings are
originally installed with Locktite between shaft and
bearings, a force as high as 5,000 lbs. may be required
to remove the pulley assembly.

PULLEY DISASSEMBLY (see Figure 11)

1. Support pulley on front end. Displace spacer (1)

eccentrically as far as possible. With a round pressing
tool which fits loosely through the I.D. of the top bearing,
press the bottom bearing out (3) pressing on the
eccentrically positioned spacer.

FIGURE 9

19

5

8

4

3

14

2

10

1

12

11

9

6

7

18

17

16

15

13

Summary of Contents for FD-2 CLUTCH TYPE FAN DRIVE

Page 1: ...t of air loss for any cause OPERATION GENERAL The FD 2 fan clutch replaces the standard fan hubs on the engine and interchanges with other Bendix and competitive fan clutches It is controlled by a tem...

Page 2: ...in the bracket of the fan clutch and travels through the drilled passage in the shaft to fill the piston cavity When air in the piston cavity reaches a pressure of 70 75 psi the piston slides on the...

Page 3: ...conditioning compressor discharge line as shown in Figure 7 When this pressure switch senses a higher than normal pressure in the air conditioning system approximately 250 psi it closes an electrical...

Page 4: ...lutch control should always be 10 F higher than the highest setting B If the fan clutch installation has successfully passed this test before but does not do so now the thermostatic control valve is d...

Page 5: ...lled between fan and pressure plate 3 Loosen fan belts 4 Disconnect air line to fan clutch 5 Remove cap nuts and lockwashers from mounting bracket and remove unit from vehicle DISASSEMBLY see Figure 9...

Page 6: ...s tool 6500 4 Invert pulley drive pin end up Position spacer 1 concentric with inner race of previously installed bearing Pack grease Chevron SR1 2 around spacer Press in second bearing 3 seal side up...

Page 7: ...ot 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...

Page 8: ...8 BW1598 2004 Bendix Commercial Vehicle Systems LLC All rights reserved 4 2004 Printed in U S A...

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