BUCKET GP-MATERIAL HANDLING 1547363 - Caterpillar

The 4C-6500 Digital Thermometer is used in the diagnosis of problems that cause overheating or overcooling in the engine. This tool can be used to check the temperature in several areas of the cooling system. The testing procedure is in Tool Operating Manual, NEHS0554.
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8T-2700 Blowby/Air Flow Indicator
The 8T-2700 Blowby/Air Flow Indicator is used to check the air flow through the radiator core. Refer to Special Instruction, SEHS8712, "Using the 8T-2700 Blowby/Air Flow Indicator" for the test procedure for checking blowby and air flow.
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9U-7400 Multitach Tool Group
The 9U-7400 Multitach Tool Group is used to measure the fan speed. Refer to Operating Manual, NEHS0605, " 9U-7400 Multitach Tool Group" for the testing procedure.
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9S-8140 Pressurizing Pump
The 9S-8140 Pressurizing Pump is used to test the filler caps. This pressurizing pump is also used to pressure test the cooling system for leaks.Checking the Filler Cap
Table 2
Required Tools
Part Number Part Name Qty
9S-8140 Pressurizing Pump 1 One cause for a pressure loss in the cooling system can be a faulty seal on the radiator pressure cap.
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Typical schematic of filler cap
(1) Sealing surface between the pressure cap and the radiator
Personal injury can result from hot coolant, steam and alkali.At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch