Checking Air Restriction Indicator

IMPORTANT: Never check air cleaner until restriction indicator is red or at 6.2 kPa (25 in. H2O) vacuum. This keeps contamination of the intake system to a minimum.

Check air restriction indicator more frequently if operating in dusty conditions.

1. Lock park brake.

2. Place transmission in N (neutral).

3. Start the engine.

4. 
   MXAL44551-UN-28MAR13

   Check, the color at sight window (A) and vacuum reading at scale (B).

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5. Stop the engine and wait for all moving parts to stop.

6. Service air cleaner element if sight window shows red or reading is at vacuum specification.

   Item	Measurement	Specification
   Air Filter Restriction	Vacuum	6.2 kPa (25 in. H2O)