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ARM A 2H9365 - Caterpillar



2H9365 ARM A Caterpillar parts ARM
Rating:
26
Alternative (cross code) number:
CA2H9365
2H-9365
2H9365
Caterpillar 2H9365 ARM A
Weight: 0.42 pounds 0 kg.

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Two-Piece Articulated Piston
Illustration 1 g01525270
Illustration 2 g01093113
(1) Crown assembly
(2) Connecting rod Note: Install the rod and piston group in the engine with the part number of the forging for the rod assembly to the rear of the engine. The rear of the engine is the flywheel end of the engine. Lubricate the rod and piston group with clean engine oil before you insert the rod and piston group into the block.Top Ring and Intermediate Ring
(3) The top ring has the mark "UP-1". Install the piston ring with the side marked "UP-1" toward the top of the piston. The colored stripe faces to the right of the ring end gap.Piston ring end gap ... 0.40 0.10 mm (0.016 0.004 inch)Minimum depth of the groove in new piston for the top ring ... 4.947 mm (0.1948 inch)Thickness of new top piston ring ... 3.453 mm (0.1359 inch) (4) The intermediate ring has the mark "UP-2". Install the piston ring with the side marked "UP-2" toward the top of the piston. The colored stripe faces to the right of the piston ring end gap.Piston ring end gap ... 1.50 0.10 mm (0.059 0.004 inch)Width of groove in new piston for intermediate piston ring ... 3.060 0.010 mm (0.1205 0.0004 inch)Minimum depth of the groove in new piston for the intermediate ring ... 4.948 mm (0.1948 inch)Thickness of new intermediate piston ring ... 2.980 0.010 mm (0.1173 0.0004 inch)Oil Control Ring
(5) The oil control piston ring has a spring that is installed with the ring. The gap in the spring should be a distance of 180 degrees from the ring end gap when the oil control piston ring is assembled. The colored portion can be to the right or to the left of the ring end gap. Piston ring end gap ... 0.45 0.15 mm (0.018 0.006 inch)Width of groove in new piston for oil control piston ring ... 4.030 0.010 mm (0.1587 0.0004 inch)Minimum depth of groove in new piston for oil control piston ring ... 4.725 mm (0.1860 inch)Thickness of new oil control piston ring ... 3.980 0.010 mm (0.1567 0.0004 inch)After the piston rings have been installed, rotate the piston rings so that the end gaps are 120 degrees from each other. (6) Piston skirt Lubricate the entire piston in zone (A) prior to assembly into the cylinder block. Use clean engine oil.Piston Pin
(7) Piston pin Piston pin diameter ... 46.000 0.005 mm (1.8110 0.0002 inch)Length of piston pin ... 91.50 0.15 mm (3.602 0.006 inch)Thoroughly lubricate the piston pin with clean engine oil prior to assembly.


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