Checking Air Restriction Indicator (Optional Equipment) 1. STOP engine. 2. Raise hood. NOTE: Indicator will not signal correctly if indicator case has a break. M71510 3. Check air restriction indicator: When yellow plunger (B) inside indicator reaches red line (A), air cleaner requires immediate service. 4. Lower hood. NOTE: Under normal operating conditions, it is not unusual to operate tractor for several hundred hours before indicator will show any restriction. Cleaning Radiator Screen and Fins 1. Raise hood. M71495 2. Remove screen (A). 71