SCREEN GP-HYDRAULIC 2254610 - Caterpillar

DEPTH="2" @@@-->Cylinder Liner Projection
(1) Bolt. (2) Washer. (3) Washer. 1. Install clean liners or cylinder packs (without the filler band or the rubber seals), spacer plate gasket and clean spacer plate. 2. Install bolts and washers, in the holes indicated with an X. Install all bolts or the six bolts around the liner. Tighten the bolts to a torque of ... 95 N m (70 lb ft) Install the plastic washer next to the spacer plate.3. Use the 8T0455 Liner Projection Tool Group to measure liner projection at positions indicated with A,B,C and D. Record measurements for each cylinder. Add the four readings for each cylinder and divide by four to find the average.4. The cylinder liner specifications are as follows: Liner projection ... 0.033 to 0.175 mm (0.0013 to 0.0069 in)Maximum variation in each cylinder ... 0.051 mm (.0020 in)Maximum average variation between adjacent cylinders ... 0.051 mm (.0020 in)Maximum variation between all cylinders ... 0.102 mm (.0040 in)5. If the liner projections are out of specification, try rotating the liner or install the liner in another bore to see if the measurements improve. Do not exceed the maximum liner projection of 0.152 mm (.0060 in). Excessive liner projection will contribute to liner flange cracking.6. With the proper liner projection, mark the liners in the proper position and set them aside.7. When the engine is ready for final assembly, the O-ring seals, cylinder block, and upper filler band must be lubricated before installation.If the lower O-rings are black in color, apply liquid soap on the lower O-ring seals and the cylinder block. Use clean engine oil on the upper filler band.If the lower O-rings are brown in color, apply engine oil on the lower O-ring seals, the cylinder block, and the upper filler band. Apply liquid soap and/or clean engine oil immediately before assembly. If applied too early, the filler bands may swell and be pinched under the liners during installation.Cylinder Block
The bore in the block for main bearings can be checked with the main bearing caps installed without bearings. Tighten the nuts holding the caps to the torque shown in the Specifications Section of this service manual. Alignment error in the bores must not be more than 0.08 mm (.003 in). Special Instruction, SMHS7606 gives instructions for checking alignment of the main bearing bores. 1P3537 Dial Bore Gauge Group can be used to check the size of the bores. Special Instruction, GMG00981 is with the group.
1P3537 Dial Bore Gauge GroupFlywheel And Flywheel Housing
Installing Ring Gear
Heat the ring gear to install it. Do not heat to more than 315°C (600°F). Install the ring gear so the chamfer on the gear teeth are next to the starter pinion when the flywheel is installed.Face Run Out (Axial Eccentricity) of the Flywheel Housing
If any method other than given here is used, always remember bearing clearance must be removed to get correct measurements.
8T5096 Dial Indicator Group Installed (Typical Example)
Checking Face Runout Of The Flywheel Housing1. Fasten a dial indicator to the