User manual BENDIX FD-L FAN CLUTCH

[. . . ] ® Bendix® FD-LTM Fan Clutch FAN HUB BRACKET DUST CAP ISOLATOR PRESSURE PLATE PULLEY PISTON COMPLETE SPRING HEX NUT BEARINGS LOCKWASHER BEARINGS WASHER SPACER PISTON HOUSING HEX NUT COTTER PIN CAP SPACER O-RING O-RING O-RING FIGURE 1 1 SD-09-8505 The FD-LTM fan clutch is designed for mid-range diesel engine applications and can withstand maximum fan torque of 750 inch pounds and a fan weight not to exceed 15 pounds. It cannot be used to replace heavy duty clutches or hubs that do not meet the above stated specifications. FAN ENGAGED DESCRIPTION The Bendix ® FD-L TM fan clutch is an air operated thermostatically controlled clutch for the engine cooling fan. Its purpose is to maintain engine temperature by engaging or disengaging the cooling fan, thereby, providing better fuel economy, greater engine efficiency, faster warm-ups and a quieter vehicle. The FD-LTM fan clutch is produced in several different models to accommodate the variety of installation requirements resulting from the many engine, vehicle and accessory combinations. [. . . ] 9. 10. contact with moving, rotating, leaking, heated or electrically charged components. Do not attempt to install, remove, disassemble or assemble a component until you have read and thoroughly understand the recommended procedures. Use only the proper tools and observe all precautions pertaining to use of those tools. If the work is being performed on the vehicle's air brake system, or any auxiliary pressurized air systems, make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle. If the vehicle is equipped with an AD-ISTM air dryer system or a dryer reservoir module, be sure to drain the purge reservoir. Following the vehicle manufacturer's recommended procedures, deactivate the electrical system in a manner that safely removes all electrical power from the vehicle. Never exceed manufacturer's recommended pressures. 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. 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. 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. NOTE: To fabricate a tool to remove the 1-9/16" hex nut, take two deep sockets and cut the end out of one and weld the remaining length onto the bottom of the other socket to make it approximately double the original length. DISASSEMBLY (REFER TO FIGURE 9) 1. Remove the cotter pin (1) from the locknut (12). Remove the fan plate assembly and set aside. Slide the piston housing (13) and piston (14) off the shaft. Separate the piston (14) from the piston housing (13) and remove the o-ring (3). Remove the o-rings (2 & 4) from the shaft. Remove the pressure plate (6) and the six springs (7). 6 PULLEY DISASSEMBLY 1. Support the backside of the pulley so that the shaft bracket assembly can be pressed down far enough to remove the pulley assembly. [. . . ] Install o-ring (2 & 4) onto the shaft and o-ring (3) into the groove of the piston (14). Install the pressure plate (6) on the pulley assembly making sure the bosses on the underside of the plate mate with the O. D. of the six springs (7) previously installed on the pulley assembly. of the piston housing (13) with the same lubricant used on the o-rings in Step 3. [. . . ]