COVER 3844247 - Caterpillar

start by: a) remove pistons1. Remove the coolant from the cylinder block.2. Put a cover on the crankshaft journals to keep foreign material off journals. 3. Pull the cylinder liner (1) from its seat in the cylinder block with tooling (A).4. Remove tooling (A) and remove cylinder liner.Install Cylinder Liners
1. Clean the cylinder liners and block.2. Install the liners in the block without the O-ring seals. 3. Install tooling (A) and two 5/8"-11 NC bolts 4 1/2 in. long. Tighten the bolts evenly to 50 lb.ft. (6.9 mkg).4. Check the liner projection with tool group (B) at four locations around the liner. The difference between the four measurements must not be more than .001 in. (0.03 mm).5. The liner projection must be .0020 to .0056 in. (0.051 to 0.142 mm). The measurement between liners next to each other, must not be more than .001 in. (0.03 mm) difference. Turning the liner in the bore can make a difference in the liner projection. 6. If the liner projection is not .0020 to .0056 in. (0.051 to 0.142 mm), check the thickness of the liner flange (1) and depth of the liner bore (2) in the block (3). The thickness of the liner flange must be .4048 .0008 in. (10.282 0.020 mm). The depth of the liner bore in block must be .401 .001 in. (10.19 0.03 mm). If the liner bore in the block is worn and the measurement is not correct, the liner bore can be corrected with a cylinder block counterboring tool. See SPECIAL INSTRUCTIONS, FORM FM055228-01.7. Put a mark on the liner and block so the liner can be installed in the same position from which it was removed. 8. Remove liner and install new O-ring seals. Put liquid soap on the seals and install the liners in the cylinder block. Push liners down with tool group (C).end by: a) install pistons