ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 003-018   Crankcase Breather Tube

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

• Disconnect the batteries. Refer to Procedure 013-009 in Section 13.

Remove the crankcase breather tube from the crankcase breather assembly.

Remove the crankcase drain tube form the crankcase breather assembly.

Remove the crankcase breather tube from the crankcase breather assembly.

Remove the crankcase drain line from the crankcase breather assembly.

Remove the breather drain line, breather drain line cover and gasket from the cylinder block.

WARNING  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

Check the tube and lines internally for obstructions or sludge buildup.

Clean the tube and lines with hot, soapy water and a soft brush.

Use compressed air to dry the tube and lines after rinsing in clean water.

Inspect the breather drain line check valve for correct operation. A small amount of air can be blown through the line (less than 34 kPa [5 psi]) to check the check valve operation.

Install the crankcase breather tube to the crankcase breather assembly.

Install the crankcase drain line to the crankcase breather assembly.

NOTE: Make sure the crankcase breather tube or drain line does not contact any high pressure fuel lines.

Install the crankcase breather tube to the crankcase breather assembly.

Install the crankcase drain line to the crankcase breather assembly.

Install the breather drain line cover, gasket and tube to the cylinder block.

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

• Connect the batteries. Refer to Procedure 013-009 in Section 13.
• Operate the engine and check for leaks.