TM5-6115-593-34NAVFAC P-8-631-34TO-35C2-3-463-2(b) Secure plunger in housing with snapring (5).(c) Install cover (4) with lockwashers (3)and screws (2).(24) ThrottleShaftReplacement.(a) Lubricate new O-ring (24, figure 13-20)and slide on fuel adjusting screw (23).(b) Insert fuel adjusting screw (23) intothrottle shaft (27) about six turns. Donot restrict throttle shaft fuel port.(c) Lubricate new O-ring (26) and slide onthrottle shaft (27).(d) Insert throttle shaft (27) in housing (50)with throttle stop up.(e) Replace ball (21), cover (20), screws(19), lever (18), screw (17), washer (16),lockwasher (15), and nut (14).(25) FilterScreenReplacement.(a) Install fuel filter screen assembly (13,figure 13-20) in housing (50).(b) Install filter spring (12), cap seal ring(11), and filter screen cap (10).(26) Remove filter screen cap (9, figure 13-21),cap seal ring (11), filter spring (10), andfuel filter screen assembly (13).(27) Remove spring (25), shim (26), plunger(27) and plunger assembly (28).(28) Heat housing in oven to 300°F (149C) andpress out governor sleeve and barrel (35,36).(29) Remove three screws (2), fuel controlcover (3), snap ring (5), and barrel plug (8).(30) Remove and discard O-rings (5 and 6).(31) Remove two screws (37), and throttle shaftcover (38).CAUTIONUse extreme care when removing throttleshaft cover (38) to avoid dropping ball(39).(32) Remove ball (39), unscrew fuel adjustingscrew (44), and remove and discard O-ring(45).(33) Remove snap ring (47), throttle shaft (43),and discard O-ring (46).(34) Visually inspect throttle shaft (43) and fueladjusting screw (44) for signs of wear ordamage; replace if necessary.NOTEDo not attempt to remove the throttleshaft sleeve; it is honed to size afterassembly to housing and due to closetolerances, the housing and sleeve mustbe replaced if damaged or wornexcessively.(35) Visually inspect filter screen assembly (13)for holes or imbedded metal particles inmesh. Replace if damaged, otherwise,clean in fuel oil and dry with compressedair.(36) Check drive shaft bushing (23) for signs ofseizure or burrs. Replace if damaged.(37) Check drive shaft bushing (23), ID withinside micrometers; if worn beyond 0.7525inch (19.11 mm) replace bushing asfollows:(a) Remove worn bushing using a gougechisel or half inch pipe tap. Aftertapping bushing, screw a half inch pipe13-49
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