OIL PUMP AND OIL PRESSURE REGULATING VALVE (cont)

OIL PUMP AND OIL PRESSURE REGULATING VALVE (cont) - TM-5-3825-229-14P_277

TM-5-3825-229-14P Distributor Water Self-Propelled 2500 Gallon Capacity Sectionalized and Non-Sectionalized Models 613BWDNS Manual
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TM 5-3825-229-14&P 5-12. OIL PUMP AND OIL PRESSURE REGULATING VALVE (cont) d. Oil Pressure Requlatinq Valve (cont). (2) Cleaning, Inspection and Repair (cont). (a) Clean all regulating valve parts in cleaning solvent (PD-680) and dry thoroughly. (b) Inspect piston for nicks, scoring and wear. Replace piston if it shows indication of nicks, scoring or wear. (c) Check free length of spring. Minimum free length of spring is 3.37 inch (85.6 mm). (d) Use a valve spring tester (5) to test spring tension of spring (3). Compress the spring to a height of 2.08 inch (52.9 mm). (e) Minimum spring tension at this height is 12 Ib-ft (54 Nm). Maximum spring tension is 14 Ib-ft (62 Nm). (f) Replace spring if spring is cracked or damaged and if it does not comply with free length and tension specifications listed above. (3) Installation. (a) Apply a light coat of lubricant (OE/HDO) to piston (4), spring (3) and washer (2). (b) Install piston (4) in bore of crankcase. Piston should slide smoothly into crankcase bore. (c) Install spring (3) and washer (2) in bore. Use a suitable drift and compress spring to move washer above spring pin hole. (d) Drive the spring pin (1) into crankcase until pin is flush with surface of crankcase. (e) Refer to para. 5-11 and install oil pan. 5-36

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