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3-3 3 ASSEMBLING 0733-277 1. Install the circlip into the groove of the fan case. A911 2. Press a bearing into the fan case until it is seated against the circlip. 3. From the opposite side of the fan case, install the spacer and press the remaining bearing into the fan case until it is seated. NOTE: The spacer is positioned between the two fan-case bearings. 4. Insert the fan with shaft through the fan bearings. 5. Install the key into the shaft. 6. Slide the inner pulley half, required shim(s), fan belt, and outer pulley half onto the shaft. A913 7. Using the fan spanner wrench, secure the pulley with a washer, lock washer, and nut. Tighten the nut to 2.5-4 kg-m (18-29 ft-lb). INSTALLING FAN 1. Place the fan case assembly on the engine; then secure with flange nuts and cap screws. Tighten the flange nuts to 1.8-2.2 kg-m (13-16 ft-lb). Tighten the cap screws to 0.4-0.7 kg-m (3-5 ft-lb). 2. Place the new fan belt into position on the upper pulley. 3. Place the fan drive pulley onto the fan belt and align one of its holes with one of the mounting holes in the flywheel; then start a cap screw into the aligned holes and finger-tighten. 4. Rotate the fan drive pulley clockwise while observing the other two holes in the pulley. When they align with the two holes in the flywheel, start the remaining two mounting cap screws. 5. Tighten the three cap screws only to position the fan drive pulley on the flywheel; then remove the three cap screws and install the recoil starter pulley. Apply red Loctite #271 to the threads of the three cap screws and install them into the flywheel. Tighten the three cap screws evenly to 0.8-1.2 kg-m (6-9 ft-lb). 6. Check the fan belt tension. Adjust as necessary. 7. Install the fan cover and secure with six screws. Tighten the screws to 1.1 kg-m (8 ft-lb). 8. Install the recoil starter. Secure with four cap screws. Tighten to 1.1 kg-m (8 ft-lb). REPLACING FAN BELT 1. Remove the fan cover and the recoil starter. 2. Remove the three cap screws securing the recoil starter pulley and the fan drive pulley to the flywheel. 3. Remove the fan drive pulley and fan belt from the engine. 4. Place the new fan belt into position on the upper pulley. KEY 1. Drive Pulley 10. Washer |