CONNECTOR 3L1231 - Caterpillar

1. Loosen four bolts (2), and turn adjustment rod (1) to remove the tension on the vee belts. Remove the vee belts from the belt tightener.2. Remove four bolts (2), and remove belt tightener (3) from the engine. 3. Remove the bolts, and remove bracket (4) from the engine.Install Belt Tightener
1. Put bracket (1) in position on the engine, and install the bolts to hold it. 2. Put belt tightener (3) in position on bracket (1), and install the bolts to hold it but do not tighten the bolts.3. Put the vee belts in position on the pulleys, and turn rod (2) to make an adjustment of the belt tension. Measure the belt nearest the radiator with a belt tension gauge such as Borroughs Tool Company Part No. BT-33-72C or an equivalent. Tighten new belts until the gauge indication is 534 22 N (120 5 lb.). For belts with more than 30 minutes of operation at rated speed a gauge indication of 400 44 N (90 10 lb.) is used.4. Tighten the bolts that hold the belt tightener, and fill the belt tightener with clean grease.Disassemble Belt Tightener
START BY:a. remove belt tightener 1. Remove adjustment rod (2) from the slide assembly.2. Remove the bolts to remove cover (1) and the gasket from the pulley. 3. Remove the bolts and remove washer (3) from the end of the shafts. 4. Remove bearing (4) from the pulley and shaft. 5. Remove spacer (5) from the shaft. 6. Remove pulley (6) from the shaft. 7. Remove seal (7) from the pulley. 8. Remove bearing (8) from the pulley. 9. Remove spacer (10) and the O-ring seal under it from the shaft.10. Remove fittings (11) and (12) from slide assembly (9). 11. If necessary, remove dowel (14) from slide assembly (9). Use a press to remove shaft (13) from slide assembly (9).Assemble Belt Tightener
1. If the shaft was removed, put shaft (2) in position in slide assembly (1). Make sure the hole in the shaft is in alignment with the hole in slide assembly (1). Use a press to install shaft (2) in slide assembly (1). Install the dowel in slide assembly (1) to hold the shaft in position. 2. Install O-ring seal (5) and spacer (3) over the shaft.3. Install fittings (4) and (6) in slide assembly (1). 4. Install bearing (7) in pulley (8). 5. Use tool group (A) to install the seal in pulley (8). Make sure the lip of the seal is toward the inside as shown. Put clean grease on the lip of the seal. 6. Install pulley (8) on the shaft. 7. Install spacer (9) on the shaft. 8. Install bearing (10) over the shaft and in pulley (8). 9. Put washer (11) in position, and install the bolts to hold it to the end of the shaft. 10. Put the gasket and cover (12) in position, and install the bolts to hold these to the pulley.11. Install adjustment rod (13) in