Use correct viscosity oil to minimize warm-up period. (See Group 9000-04.)

CAUTION: Prevent possible injury from unexpected machine movement. If hydraulic oil is cold, hydraulic functions move slowly. DO NOT attempt normal machine operation until hydraulic functions move at close-to-normal cycle times.

IMPORTANT: Prevent propel motor damage. Do not actuate both propel pedals simultaneously until propel warm-up procedure is completed.

In cold conditions, an extended warm-up period will be necessary. For faster warm-up, cover radiator and oil cooler during warming period. The hydraulic filter restriction indicator may flicker during warm-up.

Operate functions slowly until engine and hydraulic oils are thoroughly warmed. Avoid sudden operations of all functions until the engine and hydraulic oil are thoroughly warmed up.

2. Raise head off ground to height where head can be fully dumped and rolled back.

CAUTION: To prevent possible injury, clear the area of all persons before running your machine through the warm-up procedure.

3. Make sure that area is clear to allow for movement. Cycle head from stop to stop 10 times to warm up hydraulic oil in the head function valve. The warmed up oil will allow the other head functions to be cycled.

4. Cycle grab arms and accumulator or other similar attachment function 10 times.

5. Exercise swing function 5 times.

6. Swing upperstructure so boom is perpendicular to track being tested.

CAUTION: Prevent possible injury from machine sliding backwards. Keep angle between boom and arm 90-110°.

7. Keeping the angle between boom and arm 90-110°, use boom, arm, and head to raise track off ground.

8. With engine at 1/2 speed and propel switch in LOW position, rotate raised track 2-3 minutes each direction. Lower track.

9. Swing upperstructure 180° and raise other track. Repeat step 8.

10. If hydraulic functions still move slowly, repeat steps 7-9.

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