COVER-HYDRAULIC TANK 1924607 - Caterpillar

Table 1
Required Tools    
Description    Qty    
Measuring Tape     1    
Stopwatch     1    
Illustration 1 g00298378
Position the machine on level ground. Empty the bucket. Refer to Illustration 1.Boom Cylinder Head End, Stick Cylinder Rod End, and Bucket Cylinder Head End
Fully extend the bucket cylinder.
Fully retract the stick cylinder.
Extend the stick cylinder rod 70 mm (2.8 inch) from the fully retracted position.
Illustration 2 g01402004
Raise the boom until the stick to bucket pin is the same height as the boom foot pin. Refer to Illustration 2.
Measure each cylinder's length from cylinder pin to cylinder pin.
Stop the engine.
Leave the machine in this position for five minutes. Measure each cylinder's length from cylinder pin to cylinder pin for drift.
Table 2
Cylinder Drift (Empty Bucket)    
Item    New    Rebuild    Service Limit    
Boom Cylinder    
6.0 mm (0.24 inch) or less    
12.0 mm (0.47 inch) or less    
24.0 mm (0.94 inch) or less    
Stick Cylinder    
10.0 mm (0.39 inch) or less    
15.0 mm (0.59 inch) or less    
25.0 mm (0.98 inch) or less    
Bucket Cylinder    
10.0 mm (0.39 inch) or less    
15.0 mm (0.59 inch) or less    
25.0 mm (0.98 inch) or less    Stick Cylinder Head End
Start the engine.
Fully extend the bucket cylinder.
Fully extend the stick cylinder.
Retract the stick cylinder rod 60 mm (2.4 inch) from the fully extended position.
Illustration 3 g01401745
Raise the boom until the stick to bucket pin is 600.0 mm (23.6 inch) high from ground level. Refer to Illustration 3.
Measure the stick cylinder's length from cylinder pin to cylinder pin.
Stop the engine.
Leave the machine in this position for five minutes. Measure the stick cylinder's length from cylinder pin to cylinder pin for drift.
Table 3
Cylinder Drift (Empty Bucket)    
Item    New    Rebuild    Service Limit    
Stick Cylinder    
25.0 mm (0.98 inch) or less    
30.0 mm (1.18 inch) or less    
40.0 mm (1.57 inch) or less    Bucket Cylinder Rod End
Start the engine.
Fully retract the bucket cylinder.
Fully retract the stick cylinder.
Illustration 4 g01401747
Raise the boom until the stick to bucket pin is 600.0 mm (23.6 inch) high from ground level. Refer to Illustration 4.
Measure the bucket cylinder's length from cylinder pin to cylinder pin.
Stop the engine.
Leave the machine in this position for five minutes. Measure the bucket cylinder's length from cylinder pin to cylinder pin for drift.
Table 4
Cylinder Drift (Empty Bucket)    
Item    New    Rebuild    Service Limit    
Bucket Cylinder    
20.0 mm (0.79 inch) or less    
25.0 mm (0.98 inch) or less    
25 mm (0.98 inch) or less