ENGINE MAINTENANCE. (cont) - TM-5-3805-261-34

ENGINE MAINTENANCE. (cont) - TM-5-3805-261-34_870

ENGINE MAINTENANCE. (cont) - TM-5-3805-261-34_872

TM-5-3805-261-34 Grader Heavy Road Motorized (Caterpillar Model 130 G) Manual
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TM 5-3805-261-34 ENGINE MAINTENANCE. (cont) 13-8. Piston and Connecting Rod. (Sheet 6 of 12) REMOVAL (cont) NOTE Perform the following step only if piston pin bearing needs replacement. 13. Using press and rod to press out bearing, remove bearing (9), if necessary. CLEANING Clean all parts. Refer to Chapter 2. INSPECTION NOTE Sets of bearings, connecting rods and caps must be installed in the same cylinder from which they were removed. Keep each set separate. Inspect one at a time. 1. Inspect cap (2) and connecting rod (11, Figure 13-44). Replace as an assembly if cracked, pitted, scored or excessively worn. 2. Inspect piston (8). Replace if cracked, scored, grooves damaged or signs of overheating. 3. Measure bore diameter of piston pin bearing (9). Use bore gage and measure in two places, 90 degrees apart. The correct dimension is 1.7012 inches. Replace piston pin bearing (9) if dimension is not correct. 4. Measure bore diameter in piston (8) for pin (7). Use bore gage and measure in two places, 90 degrees apart. The correct dimension is 1.07006 inches. Replace piston (8) if dimension is not correct. Go to Sheet 7 13-45 Figure 13-44.

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