CATALYST AS 3750964 - Caterpillar

Table 17
Cylinder Drift    
Item    New    Rebuild    Service Limit    
Boom Cylinder    
4.0 mm (0.16 inch) or less    
8.0 mm (0.31 inch) or less    
16.0 mm (0.63 inch) or less    
Stick Cylinder    
5.0 mm (0.20 inch) or less    
8.0 mm (0.31 inch) or less    
13.0 mm (0.51 inch) or less    
Heel 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    Cylinder Operating Speed
Table 18
Required Tools    
Part Number    Description    Qty    
  Stopwatch     1    Preparation
Reference: Make reference to "Preparation For Operational Checks" .
Place the machine on level ground.
Lift up the heel and the grapple.Test (Boom Cylinders)
Fully extend the heel and the stick cylinders.Extension Test
Start with the grapple on the ground. Measure the time that is required for the boom cylinders to reach full extension.
Illustration 13 g00479303
(A) Extension test (B) Retraction testRetraction Test
Start with the boom cylinders at full extension. Measure the time that is required for the grapple to come in contact with the ground.Test (Stick Cylinder)
Fully retract the heel cylinder and position the boom so that the heel end is 1 m (3.3 ft) minimum height above the ground.Extension Test
Start with the stick cylinder in the full retracted position. Measure the time that is required for full extension of the stick cylinder.
Illustration 14 g00479989
(A) Extension test (B) Retraction testRetraction Test
Start with the stick cylinder in the full extended position. Measure the time that is required to retract the stick cylinder.Test (Heel Cylinder)
Fully retract the heel cylinder and position the boom so that the heel end is 1 m (3.3 ft) minimum height of the ground.Extension Test
Start with the heel cylinder in the full retracted position. Measure the time that is required for full extension of the heel cylinder.
Illustration 15 g00480044
(A) Extension test (B) Retraction testRetraction Test
Start with the heel cylinder in the full extended position. Measure the time that is required to retract the heel cylinder.
Table 19
Cylinder Operating Speed (seconds)    
Item    New    Rebuild    Service Limit    
Boom     Extension     6.8 0.5     7.8 max.     8.9 max.    
Retraction 5.1 0.5     5.9 max.     6.7 max.    
Stick     Extension     5.4 0.5     6.2 max.     7.1 max.    
Retraction 3.1 0.5     3.6 max.     4.1 max.    
Heel     Extension     4.9 0.5     5.7 max.     6.4 max.    
Retraction 5.6 0.5     6.5 max.     7.3 max.    
Grapple     Extension     1.2 0.5     1.4 or less     1.6 or less    
Extension