TM  10-3930-643-34 ENGINE,  FUEL,  EXHAUST  AND  COOLING  TROUBLESHOOTING  AND  MAINTENANCE. 4-10. Oil Pressure Regulator Valve. (Sheet 3 of 3) 4. Using a 1-3/4” socket and torque wrench, install valve (4), new gasket  (3),  new  preformed  packing (2) and valve cap (1) in front, left side of engine. Tighten valve cap (1) to 170 lb-ft. NOTE Return  M10A  Forklift  to original equipment  condition. END OF TASK 4-75

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