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BENDIX FD-3 TORQUEMASTER F-C Manual

Torquemaster fan clutch
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®
®
™
Bendix
FD-3
BRACKET
PULLEY
SHAFT
AIR INLET
FIGURE 1
DESCRIPTION
®
™
The Bendix
FD-3
TorqueMaster fan clutch is an air operated
thermostat controlled clutch for the engine cooling fan. Its
purpose is to maintain engine temperature by engaging or
TorqueMaster Fan Clutch
FAN PLATE
DUST
CAP
BRACKET
PULLEY
PRESSURE PLATE
BEARINGS
O-RINGS
disengaging the cooling fan, thereby providing better fuel
economy, greater engine efficiency, faster warm-ups and a
quieter vehicle.
™
The FD-3
to accommodate the variety of installation requirements
BEARINGS
PILOT DIAMETER
RETURN SPRINGS (8)
FAN HUB
PISTON
PISTON HOUSING
BEARINGS
STANDARD PILOT
DIAMETER 1.998
DRIVE PIN (2)
fan clutch is produced in several different models
LOCK NUT
DUST
CAP
2.560
LOCK
NUT
DUST
CAP
1

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Summary of Contents for BENDIX FD-3 TORQUEMASTER F-C

  • Page 1 DESCRIPTION economy, greater engine efficiency, faster warm-ups and a quieter vehicle. ® ™ The Bendix FD-3 TorqueMaster fan clutch is an air operated thermostat controlled clutch for the engine cooling fan. Its ™ The FD-3...

  • Page 2: Operation

    ™ The FD-3 TorqueMaster fan clutch replaces the standard fan hubs on the engine and interchanges with other Bendix and competitive fan clutches. It is controlled by a temperature sensitive air valve. (See Figure 4). The same valves used to control radiator shutters are used to control ™...

  • Page 3: Preventive Maintenance

    and low road speed or idling. If the condenser is inadequately CONDITIONING cooled, the air conditioning system will start to build up a SIGNAL CONDITIONER OVERRIDE higher than normal pressure. Therefore, a pressure switch OVERRIDE SOLENOID VALVES SWITCH is connected into the air conditioning compressor discharge SWITCH (NORMALLY OPEN) line, as shown in Figure 6.

  • Page 4: Checking Procedure

    lateral movement of the fan plate relative to the edge of the pulley or a scribed line in the dust shield. CHECKING PROCEDURE 1. Park the vehicle on a level surface and block the wheels. 2. Shut off the engine and apply a minimum of 85 p.s.i. to the fan clutch to disengage it.

  • Page 5: Leakage Checks

    Check for leakage by connecting a 90 cu. in. reservoir (Bendix REMOVAL part number 225000) with a gauge installed to the control port of the fan clutch.
  • Page 6 15 14 12 11 10 1 PILOT DIAMETER 1.998 15 14 PILOT DIAMETER 2.560 PILOT DIAMETER 1.998 PILOT DIAMETER 2.560 Qty. Description Qty. Description Qty. Description Flange Nut Flange Nut Cotter Pin Ball Bearing Ball Bearing O-ring Spacer Spacer O-ring Ball Bearing Ball Bearing O-ring...
  • Page 7 REASSEMBLY MATERIAL O.H.T.S. TUBING 27/32” DRILL THRU HDN. & DRAW. RC 40-45 (2 HOLES FOR 3/4” ASSEMBLY OF PULLEY (Refer to Figure 11) BAR” 1. Install snap ring(21) using Waldes tool #6500 or equivalent. 2. Support the pulley on the drive pin end and press one of the bearings(19) (seal side up) into the pulley until it contacts the snap ring(21).

  • Page 8: Installation

    Maximum thickness of spacers between fan and hub plate the shaft. is 1-1/2". 7. Install piston(16) into the piston housing(15) and install unit onto the shaft. BW1452 © 2004 Bendix Commercial Vehicle Systems LLC All rights reserved. 4/2004 Printed in U.S.A.

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