Quantcast c.  Inspection and Repair (Contd) - TM-9-2815-225-34P_155

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TM 9-2815-225-34&P 3-35.  CYLINDER HEAD AND VALVE REPAIR (Contd) LOCATION/ITEM ACTION REMARKS c.  Inspection and Repair (Contd) 16. Four valve crosshead a.  Inspect each for straightness Replace valve crosshead guides (8) guides (8) and for being at a right angle to that are not straight or square to surface of cylinder head (9). cylinder head (9).  (Refer to step 16d for replacement.) b.  Measure outside diameter. Use suitable micrometer.  Replace if less than wear limit shown below.  (Refer to step 16d for replacement.) Wear Limit ................................................................. .0.4320 in. (10.973 mm) New Minimum ............................................................. 0.4330 in. (10.998 mm) New Maximum ............................................................ 0.4335 in. (11.011 mm) c.  Using suitable micrometer, Replace if not within 1.860- measure protrusion. 1.880 in. (4.724-4.775 cm).  (Refer to step 16d for replacement.) d.  Replace valve crosshead Do not replace unless bent or not guides (8) as follows: within wear limits. (1)  Remove guide (8) from cylinder Use dowel pin extractor (ST-1134) head (9). (41).  Discard valve crosshead guide (8). (2)  Clean crosshead guide (8) holes thoroughly. (3)  Install new valve crosshead Use arbor press and crosshead guide (8) on cylinder head (9). guide spacer (ST-633) (42).  Ensure height of valve crosshead guide (8) is between 1.860-1.880 in. (4.724- 4.775 cm) after installation. 17. Two dowels (11) Inspect for cracks, breaks, Replace if damaged or loose. bending, or looseness. 3-124


 


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