CHANNEL 2034250 - Caterpillar

Table 1
Required Tools    
Description    Qty    
Measuring Tape     1    
Stopwatch     1    
Illustration 1 g00479100
Position the machine on level ground. Position the boom and the stick at maximum reach. Position the grapple against the heel. Refer to Illustration 1 for the correct machine position.
Stop the engine.
Illustration 2 g00293972
(A) Upper frame (B) Undercarriage frame (C) Marking
To indicate the relationship of the two positions, put a mark (C) on the inner race and the outer race of the swing bearing. The mark will be used as a target to stop the swing operation. Refer to Illustration 2.
Start the engine.
Place the machine controls at the following settings: Engine speed dial "10" and AEC switch OFF.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Move the swing joystick in either direction until the machine completes a 180 degree swing operation away from the target.
Move the swing joystick in either direction until the machine completes a 180 degree swing operation toward the target. Return the swing joystick to the NEUTRAL position at the target.
Measure the amount of overswing by measuring the distance between the marks on the swing bearing. Refer to Illustration 2.Note: Use a point that is visible from the operator seat as a reference point for the target.
Table 2
Overswing    
Item    Specification    
Right Swing    
1000 mm (39.4 inch) or less    
Left Swing    
Move the swing joystick in each direction and measure the time that is required to complete a 180 degree swing operation.
Table 3
Swing Time    
Item    Specification    
Right Swing     4.4 seconds or less    
Left Swing