TM  10-3930-643-34 ENGINE,  FUEL,  EXHAUST  AND  COOLING  TROUBLESHOOTING  AND  MAINTENANCE. 4-8. Oil Filter Base. (Sheet 4 of 4) CLEANING/INSPECTION 9. Apply test load of 6.12 lb-ft to spring  (9). 10. Measure test length of spring (9). Test length should be 0.927 inches. 11. Replace spring (9) if free or test length  does  not  meet  specifi- cations. 12. Inspect all other parts. Refer to paragraph 2-9. INSTALLATION 13. Using a 5/8”   socket, socket wrench handle and torque wrench, install check  valve  (10),  spring (9),  new gasket (8) and plug (7). Tighten plug (7) to 50 lb-ft. 14. Using a 3/4”   open end wrench, coat threads of elbow (6) with sealant and install elbow (6). NOTE On vehicles S/N 2001 and above, slide gasket and oil filter behind oil sampling valve. 15. Using a 9/16” socket and socket wrench  handle,  install new  gasket (5), oil filter base (4), six washers (3) and bolts (2) on front, left side of engine. 16. Using a 3/4”   open end wrench, connect turbocharger oil line (1). NOTE Return M10A Forklift to original equipment  condition. END OF TASK 4-67

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