1

Did you review the ALC System Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Automatic Level Control

1. Disconnect the air tube from the air dryer.
2. Connect the air tube to the J 22124-B pressure gage on the side opposite the toggle valve.
3. Close the toggle valve.
4. Apply service air pressure to J 22124-B service valve until the gage reads 550 kPa (80 psi).
5. Monitor the J 22124-B gage pressure for 1 minute.

Does the system maintain pressure?

System OK

Go to Step 3

Inspect the shock absorber air sleeves for air leakage using soapy water.

Did you find an air leak?

Go to Step 5

Go to Step 4

Inspect the air tubes and connections for air leakage using soapy water.

Did you find and correct the condition?

Go to Step 6

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Replace the shock absorbers. Refer to Shock Absorber Replacement .

Did you complete the replacement?

Go to Step 6

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2