2623742 ENGINE AR-COMPLETE Caterpillar parts
775F
Rating:
Alternative (cross code) number:
CA2623742
262-3742
2623742
CA2623742
262-3742
2623742
Weight: 7062 pounds 3203 kg.
TRUCK,
Related part:
2623742
SHORT BLOCK
10R9377
R
2623742
LONG BLOCK M
20R7051
R
Compatible equipment models: 2623742:
For full view, you need register
Information:
Testing the Injection Nozzles
Remove the injection line and the injection nozzle.
Illustration 1 g02481897
Nozzle tester
Connect the injection nozzle to the high-pressure line of the nozzle tester.
Slowly increase the pressure until the nozzle ejects fuel. Use the pressure gauge to determine the pressure.
If the injection pressure is lower than 118 - 128 bar (1711 - 1856 psi), then replace the spacer in the nozzle with a thicker spacer. If the injection pressure is higher than 118 - 128 bar (1711 - 1856 psi), then replace the spacers in the nozzle with a thinner spacer.Spacer thickness of 0.1 mm (0.004 inch) corresponds to a modification of 6.9 - 9.8 bar (100 -142 psi).
Check the injection nozzle for drips after fuel has been injected.
Create a pressure of approximately 20 bar (290. psi) below the recommended injection pressure range. Check for fuel escaping the nozzle.Checking the Nozzle Jet
Remove the injection lines and the injection nozzles.
Connect the injection nozzle to the high-pressure line of the nozzle tester.
Quickly increase pressure until the nozzle ejects fuels 3 or 4 times.
Illustration 2 g02481998
Correct shape of nozzle jet spray.
Illustration 3 g02482438
Incorrect shapes of nozzle jet spray.
Hold a white sheet of paper approximately 30 cm (12 inch) away form the nozzle. Eject fuel and observe the shape of the spray.
Remove the injection line and the injection nozzle.
Illustration 1 g02481897
Nozzle tester
Connect the injection nozzle to the high-pressure line of the nozzle tester.
Slowly increase the pressure until the nozzle ejects fuel. Use the pressure gauge to determine the pressure.
If the injection pressure is lower than 118 - 128 bar (1711 - 1856 psi), then replace the spacer in the nozzle with a thicker spacer. If the injection pressure is higher than 118 - 128 bar (1711 - 1856 psi), then replace the spacers in the nozzle with a thinner spacer.Spacer thickness of 0.1 mm (0.004 inch) corresponds to a modification of 6.9 - 9.8 bar (100 -142 psi).
Check the injection nozzle for drips after fuel has been injected.
Create a pressure of approximately 20 bar (290. psi) below the recommended injection pressure range. Check for fuel escaping the nozzle.Checking the Nozzle Jet
Remove the injection lines and the injection nozzles.
Connect the injection nozzle to the high-pressure line of the nozzle tester.
Quickly increase pressure until the nozzle ejects fuels 3 or 4 times.
Illustration 2 g02481998
Correct shape of nozzle jet spray.
Illustration 3 g02482438
Incorrect shapes of nozzle jet spray.
Hold a white sheet of paper approximately 30 cm (12 inch) away form the nozzle. Eject fuel and observe the shape of the spray.