793B Off-Highway Truck Caterpillar


Hoist Screens - Clean

Usage:

793B 1HL
Clean the screens whenever there is a failure of the brakes, torque converter, hoist cylinders, or hoist pumps.


Illustration 1g00288810


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.

Dispose of all fluids according to local regulations and mandates.


  1. Loosen the bolts on the hoses and drain the oil from the lines into a suitable container.

  2. Remove the lower hoses and cover them. Make sure that no debris enters the hoist valve.

  3. Remove upper hoses and both screens. Clean the screens in a clean nonflammable solvent.

  4. Install the clean screens and hoses. Use new seals. Tighten the bolts.

  5. Check for leaks and make any necessary repairs.

Caterpillar Information System:

740 Articulated Truck, 768C, 769C, 769D, 772B, 773B, 773D, 773E, 773F, 776, 776B, 776C, 776D, 777, 777B, 777C, 777D, 777F, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793, 793B, 793C and 793D Off-Highway Trucks and 771C, 771D, 775B, 775 Lamp Checks
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740 Articulated Truck, 768C, 769C, 769D, 772B, 773B, 773D, 773E, 773F, 776, 776B, 776C, 776D, 777, 777B, 777C, 777D, 777F, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793, 793B, 793C and 793D Off-Highway Trucks and 771C, 771D, 775B, 775 Troubleshooting Methods
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789C Off-Highway Truck Air/Hydraulic Cylinder Breather - Clean
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