VALVE AS 6E6638 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 4C-8568 Liner Puller Group 1
9U-6600 Hand Hydraulic Pump 1
8T-3035 Hydraulic Line 1
8T-0820 Hydraulic Pressure Gauge 1
3S-6224 Electric Hydraulic Pump
(115 Volt 50/50 Hz) 1
8S-8033 Electric Hydraulic Pump
(230 Volt 50/60 Hz) 1
B 4C-9041 Cylinder Installation Tool 1 Start By:
Remove the piston and connecting rod.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Drain the coolant completely from the cylinder block.
Put a protective cover over the crankshaft in order to prevent dirt and debris from falling on the crankshaft.
Illustration 1 g00575535
Install Tool (A) into the cylinder liner. Put the legs into position in order to engage with the bottom of the cylinder liner.
Fasten two hydraulic hoses from the pump group to the hydraulic cylinder on Tool (A).
Use Tool (A) in order to pull the cylinder liner from the cylinder block. This should be done until the lower O-ring seals are free in the bore of the cylinder block.
Illustration 2 g00575536
Fasten a nylon strap and a suitable lifting device to Tool (A). Lift the cylinder liner (1) out of the cylinder block. The combined weight of the cylinder liner and Tool (A) is approximately 127 kg (280 lb).
Illustration 3 g00575537
Remove the O-ring seal (2) and the O-ring seal (3) from the cylinder liner.
Lower the cylinder liner on the blocks. Remove Tool (A).