TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 NOTE Make sure that identification markings on major assemblies correspond to those entered in weapon record book. 2-4.1 General Inspection Guidelines a. Inspect Cast Parts Ensure there are no fractures and inspect interiors for scores and burrs. b. Inspect Pistons, Spools, and Sleeves NOTE Inspection of sleeves is to be accomplished without removing sleeves from valve bodies. Instead, use a small mirror and pencil-type flashlight. Spools and sleeves are non-interchangeable. If one part is rejected, also reject its mating part. Ensure bores and parts are clean and free of foreign matter and burrs. c. Inspect Bail Bearings 1 Inspect all bearings in accordance with TM 9-214, Inspection and Care of Bearings. This reference also pro vides information on cleaning, lubrication, and evaluation of life of bearings. 2 Inspect ball check valves for cracks, fractures, signs of galling, pitting, or corrosion. Take several measure- ments of the diameter of each ball to check for roundness and proper diameter. Replace ball if damaged. 3 Perform maintenance functions on bearings in accordance with TM 9-214. d. Inspect Bushing-Type Bearings Never scribe-mark bearing surfaces as it may cause permanent damage to parts. NOTE Observe position of defective bearing within housing in order to replace new bearing in a similar manner. Inspection of bearings is to be accomplished without removal of bearings. Instead, use a small mirror and pencil-type flashlight. 1 Inspect bearing for cracks, fractures, and signs of galling, pitting, scoring, or corrosion. 2 Replace bearing if damaged, e. Do Not Inspect Seals, Gaskets, and Preformed Packings Replace all seals, gaskets, and preformed packings. f. Inspect Gears 1 Inspect gears for wear, nicks, flaking, scoring, and burring. Check gears that have been shrunk or pressed with component parts. 2-3