ELEMENT (SEM) 5675242 - Caterpillar

Table 1
Required Tools    
Description    Qty    
Tape Measure     1    
Stopwatch     1    
Illustration 1 g00816368
Position the machine on level ground. Refer to Illustration 1.
Fully retract the stick cylinder and fully extend the bucket cylinder.
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 engine speed dial in the HIGH IDLE position.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Load the bucket.Weight of bucket load ... 150 kg (331 lb)
Move the swing joystick in either direction until the machine completes a 90 degree swing operation away from the target.
Move the swing joystick in the opposite direction until the machine completes a 90 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    
303.5D CR 304D CR    
Right Swing    
180 mm (7.1 inch) or less    
180 mm (7.1 inch) or less    
Left Swing    
Empty the bucket and reposition the machine according to Illustration 1.
Move the swing joystick in each direction and measure the time that is required to complete a 90 degree swing operation.Move the swing joystick in each direction and measure the time that is required to complete three revolutions.
Table 3
Swing Time (1)    
Item    Specification    
303.5D CR 304D CR    
Right Swing (90°)     2.5 sec or less     2.5 sec or less    
Left Swing (90°)    
Continuous swing right (three revolutions) (2)     19.2 - 22.9 sec or less     18.3 - 20.0 sec or less    
Continuous swing left (three revolutions) (2)    
( 1 ) Empty bucket
( 2 ) Start the measurement after the machine has rotated one full revolution.