ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 003-001   Crankcase Breather (External)

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 and drain tubes. Refer to Procedure 003-018 in Section 3.

Remove the two mounting capscrews.

Remove the breather from the rocker lever cover by pulling straight up on the breather assembly.

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

Use hot soapy water and a soft brush to clean the crankcase breather.

Dry with compressed air.

Inspect the breather for cracks or other damage.

Place a new o-ring on the breather.

Lubricate the o-ring and the valve cover o-ring seat with lubricating oil.

Install the breather into the rocker lever cover.

Tighten the capscrews.

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.

• Install the crankcase breather tube and drain tube. Refer to Procedure 003-018 in Section 3.
• Connect the batteries. Refer to Procedure 013-009 in Section 13.
• Operate the engine and check for leaks.