Water Temperature Regulator - Test - Perkins 1106A-70T Operation Manual

40
Cooling System
2. Refer to Disassembly and Assembly, "Engine Oil
Cooler - Remove" for removal of the engine oil
cooler.
3. Thoroughly clean the oil cooler (1) and the cylinder
block.
Personal injury can result from air pressure.
Personal injury can result without following prop-
er procedure. When using pressure air, wear a
protective face shield and protective clothing.
Maximum air pressure at the nozzle must be less
than 205 kPa (30 psi) for cleaning purposes.
4. Inspect the oil cooler (1) for cracks and dents.
Replace the oil cooler (1) if cracks or dents exist.
Ensure that no restrictions for the flow of
lubricating oil exist in the oil cooler (1).
Dry the oil cooler (1) with low pressure air. Flush
the inside of the oil cooler (1) with clean lubricating
oil.
5. Refer to Disassembly and Assembly, "Engine Oil
Cooler - Install" for installation of the engine oil
cooler.
6. Ensure that the cooling system of the engine is
filled to the correct level. Operate the engine.
Note: Refer to Operation And Maintenance Manual,
"Refill Capacities" for additional information.
Check for oil or coolant leakage.
Water Temperature Regulator -
Test
Personal injury can result from escaping fluid
under pressure.
If a pressure indication is shown on the indicator,
push the release valve in order to relieve pressure
before removing any hose from the radiator.
1. Remove the water temperature regulator from the
engine. Refer to Disassembly and Assembly
Manual, "Water Temperature Regulator - Remove
and Install".
This document has been printed from SPI2. NOT FOR RESALE.
2. Heat water in a pan until the temperature of the
water is equal to the fully open temperature of the
water temperature regulator. Refer to
Specifications, "Water Temperature Regulator" for
the fully open temperature of the water
temperature regulator. Stir the water in the pan.
This will distribute the temperature throughout the
pan.
3. Hang the water temperature regulator in the pan of
water. The water temperature regulator must be
below the surface of the water. The water
temperature regulator must be away from the sides
and the bottom of the pan.
4. Keep the water at the correct temperature for ten
minutes.
5. After ten minutes, remove the water temperature
regulator. Immediately measure the opening of the
water temperature regulator. Refer to
Specifications, "Water Temperature Regulator" for
the minimum opening distance of the water
temperature regulator at the fully open
temperature.
If the distance is less than the amount listed in the
manual, replace the water temperature regulator.
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