ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 008-011   Coolant Heater

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.

WARNING  Do not remove the pressure cap from a hot engine. Wait until the coolant temperature is below 50°C [120°F] before removing the pressure cap. Heated coolant spray or steam can cause personal injury.

WARNING  Coolant is toxic. Keep away from children and pets. If not reused, dispose of in accordance with local environmental regulations.

CAUTION  Use caution when draining coolant that coolant is not spilled or drained into the bilge area. Do not pump the coolant overboard. If the coolant is not reused, it must be discarded in accordance with local environmental regulations.

• Disconnect the battery. Refer to Procedure 013-009 in Section 13.
• Drain at least 19 liters [5 U.S. gal] of coolant. Refer to Procedure 008-018 in Section 8.

Disconnect the coolant heater electrical cord.

Loosen the coolant heater, and remove it from the cylinder block.

Clean the coolant heater and block threads thoroughly.

Lubricate the new coolant heater threads with clean engine oil.

Install the coolant heater.

Attach the coolant heater electrical cord.

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.

• Fill the cooling system. Refer to Procedure 008-018 in Section 8.
• Connect the battery. Refer to Procedure 013-009 in Section 13.
• Operate the engine and check for leaks.