VALVE 5439304 - Caterpillar

Table 1
Required Tools    
Description    Qty    
Measuring Tape     1    
Stopwatch     1    
Illustration 1 g00298078
Swing Speed (Empty Bucket)
Empty the bucket.
Position the machine on a slope of 12 degrees. Refer to Illustration 1.
Position the implements at maximum reach and close the bucket. Position the bucket above the ground so that the bucket will not come in contact with any obstacles.
Illustration 2 g00298079
Position the upper structure at position (A) . The upper structure should be at a 90 degree angle to the lower structure. Refer to Illustration 2.
Measure the time that is required to swing the upper structure from position (A) to position (B) .
Position the upper structure at position (C) . The upper structure should be at a 90 degree angle to the lower structure.
Measure the time that is required to swing the upper structure from position (C) to position (B) .
Table 2
Swing Time (seconds)    
Item    New    Rebuild    Service Limit    
Right Swing     5.2 or less     5.7 or less     6.5 or less    
Left Swing    Swing Drift (Loaded Bucket)
Load the bucket.Weight of bucket load Standard Undercarriage ... 1050 kg (2310 lb) Long Undercarriage ... 1200 kg (2640 lb)
Position the machine on a slope of 12 degrees. Refer to Illustration 1.
Position the implements at maximum reach and close the bucket. Position the bucket above the ground so that the bucket will not come in contact with any obstacles.
Illustration 3 g00298079
Position the upper structure at position (A) . The upper structure should be at a 90 degree angle to the lower structure. Refer to Illustration 3.
Illustration 4 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. Refer to Illustration 4.
Stop the engine.
Leave the machine in this position for three minutes. Measure the swing drift on the circumference of the swing bearing.
Start the engine.
Position the upper structure at position (C) . The upper structure should be at a 90 degree angle to the lower structure. Refer to Illustration 3.
Repeat Steps 5 through 7.
Table 3
Swing Drift mm (inch)    
Item    New    Rebuild    Service Limit    
Right Swing     0     0     0    
Left Swing