KEY 2589054 - Caterpillar

Note: The following procedure does not require the use of an "H" bar to hold the liners while the liner projection measurements are taken.The 8T-0455 Liner Projection Tool Group can be used to check the liner projection. Refer to Special Instruction, "Use of the 8T-0455 Liner Projection Tool Group " for more information on the use of the tool.
Illustration 1 g01388332
Liner Projection Components (1) Bolt (2) Washer (3) Washer (4) Spacer plate (5) Block (6) Cylinder liner
Table 1
Needed Components    
Item     Part Number     Description     Quantity For One Cylinder    
1     7H-3598     Track Bolt     6    
2     8F-1484 C27
or
7X-0564 C32     Washer
or
Hard Washer     6    
3     7K-1977 C27
or
126-1454 C32     Washer
or
Washer     6    Note: The 7K-1977 Washer and the 126-1454 Washer are fabric washers. These washers are a disposable item. You may wish to order more washers than the amount that is indicated.
Illustration 2 g01086418
Install a new spacer plate gasket and a clean spacer plate.
Install the cylinder liners in the cylinder block without seals or bands.
Install the washers.
Install all bolts or the six bolts around the liner.Torque for bolts ... 95 N m (70 lb ft)
Use the 8T-0455 Liner Projection Tool Group to measure the liner projection at "A", "B", "C" and "D".
Record measurements for each cylinder.
Add the four readings for each cylinder. Divide the sum by four in order to find the average.
Table 2
Specifications    
Liner Projection    
0.025 to 0.152 mm (0.0010 to 0.0060 inch)    
Maximum Variation In Each Liner    
0.051 mm (0.0020 inch)    
Maximum Average Variation Between Adjacent Liners    
0.051 mm (0.0020 inch)    
Maximum Variation Between All Liners    
0.102 mm (0.0040 inch)    Note: If the liner projection changes around the liner, turn the liner to a new position within the bore. If the liner projection is not within specifications, move the liner to a different bore. Inspect the top face of the cylinder block.A thinner spacer plate should be installed if the liner projection measurements are below the specifications. The spacer plate should also be installed if the liner projection measurements are low within a range. These plates are 0.076 mm (0.0030 inch) thinner than the regular plate. The plates will increase the liner projection. This will increase the crush of the fire ring. Use these spacer plates to compensate for low liner projections that are less than the 0.076 mm (0.0030 inch). Use these spacer plates if the inspection of the top deck reveals no measurable damage directly under the liner flanges but the average liner projection is less than 0.076 mm (0.0030 inch).Do not exceed the maximum liner projection of 0.152 mm (0.0060 inch). The excessive liner projection will contribute to cracking of the liner flange.When the liner projection is correct, put a temporary mark on the liner and the spacer plate. Set the liners aside.Note: Refer to Disassembly and Assembly, "Cylinder Liner - Install" for the correct final