Cleaning Debris From Cooling System

1. CAUTION: Touching hot surfaces can burn skin. The engine, components, and fluids will be hot if the engine has been running. Allow the engine to cool before servicing or working near the engine and components.

   NOTE: Checking and cleaning cooling fins should be performed every 100 hours.

   Park machine safely on a level surface. (See Parking Safely in the SAFETY section.)

2. IMPORTANT: To avoid damage from overheating, clean all debris from cylinder head cooling fins and engine area as directed by the machine service intervals.

   • The interval for cleaning debris from the engine compartment area is daily.

   • The interval for removing the clean-out panels and cleaning all debris from cylinder head cooling fins is every 100 hours, or more frequently depending on operating conditions.

   • The interval for removing the cooling shrouds and cleaning debris from complete cooling system is every 500 hours, or more frequently depending on operating conditions.

   NOTE: After inspection, If all debris cannot be cleaned out after performing 100 Hour Interval, the Every 500 Hours interval needs to be performed.

   Remove covers:

   • 
     TCAL43512-UN-21MAR13

     Z915B, Z925M EFI and Z930M EFI: Remove four screws (A) and two covers (B).

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     TCAL43513-UN-21MAR13

     All other models: Remove two screws (A) and two covers (B).

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3. Remove spark plug wires.

4. CAUTION: Compressed air can cause debris to fly a long distance.

   • Clear work area of bystanders.

   • Wear eye protection when using compressed air for cleaning purposes.

   • Reduce compressed air pressure to 210 kPa (30 psi).

   With compressed air, thoroughly clean debris buildup.

5. Install spark plug wires.

6. Install two covers on shroud.

7. Raise seat.

8. Check and clean engine oil cooler (C) (if equipped) and blow out debris with compressed air.

9. Lower seat.