ENGINE AR-PRIMARY 3050489 - Caterpillar

Table 1
Required Tools    
Description    Qty    
Stopwatch     1    
Illustration 1 g01347691
Start the engine.
Position the machine on level ground.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Raise a track off the ground. Refer to Illustration 1.
Put a mark on a shoe of the raised track.
Place the engine speed dial in the HIGH IDLE position.
Place the travel speed control switch in HIGH position.
Move the travel lever of the raised track to full travel position.
Measure the time that is required for the raised track to make three complete revolutions. Measure the time that is required in each direction.
Place the travel speed control switch in the LOW position and repeat Steps 8 through 9.
Table 2
Time For Three Revolutions (time in seconds)
Standard Undercarriage
   
Travel Mode (Forward and Reverse)     303C CR     303.5C CR    
Rubber Track     HIGH     10.5 - 12.5     9.6 - 11.6    
LOW 17.2 - 20.4     16.1 - 19.1    
Steel Track     HIGH     10.6 - 12.6     10.3 - 12.3    
LOW 17.6 - 20.6     17.6 - 20.6