PUMP GP-FUEL INJECTION 3580781 - Caterpillar

Conditioner contains alkali. Avoid contact with skin and eyes.
To check for the amount of pressure that opens the filler cap, use the following procedure:
After the engine cools, carefully loosen the filler cap. Slowly release the pressure from the cooling system. Then, remove the filler cap.Carefully inspect the filler cap. Look for any damage to the seals and to the sealing surface. Inspect the following components for any foreign substances:
filler cap
seal
surface for sealRemove any deposits that are found on these items, and remove any material that is found on these items.
Install the filler cap on the 9S-8140 Pressurizing Pump .
Look at the gauge for the exact pressure that opens the filler cap.
Compare the gauge reading with the opening pressure that is listed on the filler cap.
If the filler cap is damaged, replace the filler cap.Testing the Water Temperature Gauge
Table 3
Required Tools    
Part Number    Part Name    Quantity    
4C-6500
or
2F-7112     Digital Thermometer
or
Thermometer     (1)    
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.
Making contact with a running engine can cause burns from hot parts and can cause injury from rotating parts.When working on an engine that is running, avoid contact with hot parts and rotating parts.
Check the accuracy of the water temperature indicator or water temperature sensor if you find either of the following conditions:
The engine runs at a temperature that is too hot, but a normal temperature is indicated. A loss of coolant is found.
The engine runs at a normal temperature, but a hot temperature is indicated. No loss of coolant is found.Coolant temperature can also be read on the display screens of the Electronic Service Tool.
Illustration 6 g00331990
The back of the left cylinder head (Sending unit for the water temperature gauge.) Remove the plug (1). Install one of the following thermometers in the open port:
The 4C-6500 Digital Thermometer
The 2F-7112 Thermometer A temperature indicator of known accuracy can also be used to make this check.Start the engine. Run the engine until the temperature reaches the desired range according to the test thermometer. If necessary, place a cover over part of the radiator in order to cause a restriction of the air