PLATE 7G0743 - Caterpillar

Hose replacement prior to failure is cost effective and a good preventive maintenance prectice.Replacing a hose before it fails saves your mony and reduces the chances for unscheduled downtime. By replacing a hose that is cracked, soft or leaking, you will avoid major repairs that could result in a severe engine overheating problem. 1. Inspect all hoses for leaks due to cracking, softness next to clamps and loose clamps.2. Replace hoses that are cracked or soft and tighten loose clamps.Before Replacing Hoses
1. Loosen the filter cap slowly to relieve any pressure and remove the cap.2. Drain the coolant from the cooling system to a level below the hose being replaced.3. Remove the hose clamps, disconnect the old hose and replace with a new hose.Belts
Inspect - Adjust
Your engine can be equipped with water pump, fan drive, alternator, and accessory drive belts. For maximum engine performance and utilization of your engine, inspect the belts for wear and cracking. Check and adjust the belt tension to minimize belt slippage which will decrease belt life and cause poor performance of alternator, water pump, and any driven equipment.To check the belt tension, apply 110 N(25 lbs) of force midway between the pulleys. Correctly adjusted belts will deflect 13 to 19 mm (1/2 to 3/4 inch).If new belt(s) are installed, check belt adjustment again after 30 minutes of operation. For multiple belt drive applications, always replace belts in matched sets. If only one belt of a matched set is replaced, it will carry more of a load than the belts not replaced since the older belts are stretched.The additional load on the new belt could cause it to break.To Adjust Water Pump Belt
1. To adjust the water pump drive belt, loosen mounting bolt (1) and bracket bolt (2).2. Move idler pulley in or out as required to obtain the correct adjustment.3. Tighten bolts (1) and (2).4. If a new belt is installed, check the belt adjustment again after 30 minutes of engine operation at rated speed.To Adjust Alternator/Fan Belts
1. To adjust the alternator/fan belts, loosen mounting bolt (3) and bracket bolt (4) on the alternator bracket.2. Move alternator in or out as required to obtain the correct adjustment.3. Tighten bolts (3) and (4). Alternator shaft nut must be tightened to 50 5 N m (37 4 lb ft).4. Check and adjust the position of the fan shroud to ensure that the fan will not rub on the shroud. Maintain a 9.4 mm (.375 inch) clearance between the fan and shroud.5. If new belts are installed, check the belt adjustment again after 30 minutes of engine operation at rated speed. Replace belts in matched sets only. If only one belt of a matched set is replaced, it will carry more of a load than the belts not replaced since the older belts are stretched. The additional load on the new belt could cause it to break.Cooling System
Add Conditioner
At operating temperature, the engine coolant is hot and under pressure.Steam can cause personal injury.Check