TM 5-1940-277-34INJECTOR TEST AND REPAIR INSTRUCTIONS(Continued)LOCATIONITEMACTIONREMARKSe.SpringScrew into top ofadjustingholder until pres-screw (4)sure on spring isfelt.f.CopperFit over top ofwasher (3)adjusting screw.g.Injector capScrew on springMake sure coppernut (2)adjusting screw.washer (3) re-Do not tighten.mains positioned.13.Injectora.NozzleConnect toUse screwdriver.testerholder (1)tester. Pumptester pressureand rotate springadjusting screwclockwise at sametime. Adjustuntil injectoropens (sprays) at2,999 psig (205atm).b.Injector capTorque to 37 -Use 1 in socketnut (2)43 ft-lb.and torquewrench.14.Injector testerNozzle holderRetest needleSteps 1d, 1e, 1f.(1)valve back leak-If injector failsage, needle seattest replaceleakage andinjector.atomization.2-275(2-276 Blank)
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