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

ENGINE MAINTENANCE. (cont) - TM-5-3805-261-34_871

ENGINE MAINTENANCE. (cont) - TM-5-3805-261-34_873

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 7 of 12) INSPECTION (cont) 5. Using feeler gage, measure clearance between pin (7) and bearing (9). Clearance between new parts should be .0003 to .0013 inch. Maximum clearance permissible for worn parts should not exceed .002 inch. 6. Inspect top ring and second ring piston grooves for burrs and wear. Oil holes should be open. 7. Using piston ring groove gage (Figure 13-45), measure side clearances. Put pin end of number 2 gage in ring groove at four places around the piston. Check both grooves. Piston is reusable if there is clearance between flat edge of gage and piston. Both grooves must be good to reuse piston. Replace piston if flat edge of groove gage is in contact with piston at any test point. 8. Using a micrometer, measure outside diameter of pin (7, Figure 13-44). Correct dimension is 1.6998 inches. Replace if reading is not correct. 9. Inspect retaining rings (6). Replace if damaged or if resiliency is lost. 10. Remove and inspect nuts (1) and bolts (10). Replace if cracked, broken, distorted or threads damaged. Go to Sheet 8 13-46 Figure 13-44. Figure 13-45.

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