VALVE-SOLENOID 1743223 - Caterpillar

Extension Test
Start with the end of the stick on the ground. Measure the time that is required for the boom cylinders to reach full extension.Retraction Test
Start with the boom cylinders at full extension. Measure the time that is required for the end of the stick to come in contact with the ground.Test (Stick Cylinder)
Illustration 2 g02034953
(A) Extension test (B) Retraction test
Table 3
Stick Cylinder Speed (Seconds)    
Item    New    Rebuild    Service Limit    
    Retraction                
Stick     Extension     6.0 0.5     6.5 (1)     6.5 (1)    
Retraction
( 1 ) Maximum
Position the upper surface of the boom parallel to the ground.Extension Test
Start with the stick cylinder in the full retracted position. The end of the stick should be approximately 1 m (3 ft 3 inch) from the ground. Measure the time that is required for full extension of the stick cylinder.Retraction Test
Start with the stick cylinder in the full extended position. Measure the time that is required to retract the stick cylinder.Test (Bucket Cylinder)(If Equipped)
Table 4
Bucket Cylinder Speed (Seconds)    
Item    New    Rebuild    Service Limit    
    Retraction                
Bucket     Extension     3.9 0.5     4.5 (1)     5.1 (1)    
Retraction 2.3 0.5     2.8 (1)     3.0 (1)    
( 1 ) Maximum
Position the upper surface of the boom parallel to the ground.Extension Test
Start with the bucket cylinder in the full retracted position. The end of the bucket should be approximately 1 m (3 ft 3 inch) from the ground. Measure the time that is required for full extension of the bucket cylinder.Retraction Test
Start with the bucket cylinder in the full extended position. Measure the time that is required to retract the bucket cylinder.Test (Stabilizer Cylinder)
Illustration 3 g01931457
Table 5
Cylinder Speed (Seconds)    
Item    New    
Stabilizer     Extension     18 3    
Retraction Extension Test
Start with the stabilizer cylinders in the full retracted position. Measure the time that is required for the stabilizers to contact with the ground.Retraction Test
Start with the stabilizer cylinders in the extended position with the stabilizer on the ground. Measure the time that is required to retract the stabilizer cylinders.Test (Hydraulic Cab Riser Cylinder)
Table 6
HCR Cylinder Speed (Seconds)    
Item    New    
    Retraction        
HCR     Extension     20 3    
Retraction Extension Test
Start with the HCR cylinder in the full retracted position. Measure the time that is required for the HCR cylinder to reach full extension.Retraction Test
Start with the HCR cylinder in the full extended position. Measure the time that is required for the HCR cylinder to reach full extension.