CYLINDER BLOCK GP 2388195 - Caterpillar

Illustration 1 g00727786
(A) Extension test (B) Retraction test
Position the upper surface of the boom parallel to the ground.
Position the stick so that the stick is perpendicular to the ground.
Fully extend the bucket cylinder.
Fully retract the blade cylinder.
With a stopwatch, measure the time that is required to fully extend the blade cylinder.
Position the blade cylinder at full extension. With a stopwatch, measure the time that is required to fully retract the bucket cylinder.
Refer to the specifications in Table 1 for the operating speed of the blade cylinder.
Table 1
Cylinder Operating Speed (seconds)    
Item    New    Rebuild    Service Limit    
Blade     Extension     1.9 0.3     2.5 (1)     2.9 (1)    
Retraction
( 1 ) Maximum