BONNET 2M4315 - Caterpillar

Table 1
Required Tools    
Part Number    Description    Qty    
5P-3277     Measuring Tape     1    
    Stopwatch     1    
Illustration 1 g00298378
Position the machine on level ground. Refer to Illustration 1.
Load the bucket.Weight of bucket load 320B ... 1050 kg (2310 lb) 320B L ... 1200 kg (2630 lb)
Raise the boom until the top stick pin is the same height as the boom foot pin.
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.
Measure each cylinder's length from cylinder pin to cylinder pin.
Stop the engine.
Leave the machine in this position for three minutes. Measure each cylinder's length from cylinder pin to cylinder pin for drift.
Table 2
Cylinder Drift (Loaded 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    
12.0 mm ( 0.47 inch) or less    
18.0 mm ( 0.71 inch) or less    
30.0 mm ( 1.18 inch) or less    
Bucket Cylinder    
18.0 mm ( 0.71 inch) or less    
27.0 mm ( 1.06 inch) or less    
45.0 mm ( 1.77 inch) or less