92 SEBU7899-05 Maintenance Section Hoses and Clamps - Inspect/Replace The electronics grounding stud must have a wire ground to the battery. Tighten the electronics grounding stud at every oil change. Ground wires and straps should be combined at engine grounds. All grounds should be tight and free of corrosion. Hoses which exhibit signs of leakage which are not the result of loose couplings or clamps Inspect all clamps for the following conditions. Replace any clamp which exhibits signs of any of the following conditions. Clean the electronics grounding stud and the terminals for the electronics ground strap with a clean cloth.
Cracking Looseness If the connections are corroded, clean the connections with a solution of baking soda and water. Damage Keep the electronics grounding stud and the strap clean and coated with MPGM grease or petroleum jelly. Inspect all couplings for leaks. Replace any coupling which exhibits signs of leaks. Each installation application can be different. The differences depend on the following factors: i04301694 Hoses and Clamps - Inspect/Replace Type of hose Type of fitting material Anticipated expansion and contraction of the hose SMCS Code:
7554-040; 7554-510 Anticipated expansion and contraction of the fittings Hoses and clamps must be inspected periodically in order to ensure safe operation and continuous operation of the engine. Take proper safety precautions before inspecting or replacing hoses and clamps. Due to extreme temperature changes, the hose will heat set. Heat setting causes hose clamps to loosen which can result in leaks. A constant torque hose clamp will help to prevent loose hose clamps. Note: Always use a board or cardboard when the engine components are checked for leaks. Leaking fluid that is under pressure can cause serious injury or possible death. Leaks that are the size of a pin hole are included.
Refer to Operation and Maintenance Manual, “General Hazard Information” for more information. Replace hoses that are cracked or soft. Replace hoses that show signs of leakage. Replace hoses that show signs of damage. Replace hose clamps that are cracked or damaged. Tighten or replace hose clamps which are loose. Replace the Hoses and the Clamps Inspect the Hoses and the Clamps Inspect all hoses for leaks that are caused by the following conditions. Replace any hose which exhibits any of the following conditions. Failure to replace a hose which exhibits any of the following conditions may result in a hazardous situation.
NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, test- ing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any com- ponent containing fluids. Hoses which are cracked Hoses which are soft Refer to Special Publication, NENG2500, “Cat Dealer Service Tool Catalog” or refer to Special Publication, PECJ0003, “Cat Shop Supplies and Tools Catalog” for tools and supplies suitable to collect and contain fluids on Cat products.
Outer covering that is chafed or cut Exposed wire that is used for reinforcement Dispose of all fluids according to local regulations and mandates. Outer covering that is ballooning locally Flexible part of the hose that is kinked or crushed Armoring that is embedded in the outer covering