HORN ASSEM. 5D3570 - Caterpillar

Battery gases must be vented out of the area. Keep open flames away from batteries.
Use multi-viscosity or synthetic oil to prevent bearing damage on cold start and raise cranking speed. Do not use oil heaters that are put directly into the oil. Oil must be able to drip from the dipstick before a start.
Wax in the fuel and water freezing are two common causes of difficult engine starts. Change the fuel filter and thoroughly prime the system to correct the wax problem. Keep water and air out of the fuel lines to prevent water freezing. Fuel heaters will keep fuel temperatures warm enough to start the engine.
The names and addresses of suppliers for fuel heaters, water heaters, and oil heaters are available in Special Instruction, Recommendations For Cold Weather Starting Of Engines Equipped To Operate Air Compressors and Drills, Form Number SEHS7659.