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Page Title: ASSEMBLY
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TM5-4210-229-14&P 5-7.   RESCUE SAW REPAIR (Continued). (3) Check  carburetor  valves  and  seats  for  wear, scoring, or other damage. (4) Check   carburetor   body   for   cracks,   clogged passage and worn bushings. (5) Check   throttle   shaft   (210)   and   choke   shaft (212)  for  wear  on  bearing  surfaces,  distortion or other damage. (6) Inspect     fuel     pump     diaphragm     (192)     for damage on the flaps and for signs of leakage. Inspect    main    diaphragm    (178)    for    leaks, looseness and wrinkles. (7) Using a tachometer, check that engine speed is    6500    rpm    while    throttle    in    full    speed position   and   that   clutch   engages   belt   and blade   at   approximately   3200   rpm.      Warm engine     thoroughly     and     adjust     full-throttle speed and idle speed which should be a little faster than necessary to rotate blade cutter. ASSEMBLY a. Rescue Saw Carburetor Assembly. (1) Insert     spring     (213)     with     ball     (214)     into carburetor   body.      Insert   choke   shaft   (212) through carburetor body and attach choke flap (211) into shaft with screw (210). (2) Assemble    spring    (209)    with    two    bushings (207) and seal (206) onto shaft (210).  Install shaft  (210)  into  carburetor  body  and  secure with  seal  (205),  washer  (204)  and  lock  ring (203).      Install   throttle   flap   (202)   onto   shaft (210) with screw (201). (3) Install niple (194) and idle screw (195)with nylon ball (196). Do  not  screw  down  the  jet  adjustment  screws hard since this can damage the seats. (4) Install   high   speed   adjust   screw   (197)   with spring (198) and low speed adjust screw (199) with spring (200). (5) Install strainer (193), diaphragm (192), gasket (191), fuel pump cover (196) and secure with four screws (189). (6) Install seal (188) and governor (187). (7) Install   washer   (185),   valve   (186),   and   inlet needle valve (184). (8) Install  spring  (183),  lever  spindle  (182),  lever (181) and screw (180). (9) Install   gasket   (179),   diaphragm   (178),   and cover (177) and secure with four screws (176). b. Rescue Saw Assembly. (1) Warm both halves of the crankcase.  Grease the main bearings (171) using grease (Appendix D, Item 22) and install on crankshaft  assembly  (167).    Install  seals  (99 and  173)  and  hub  (100).    Install  crankshaft (167)  and  cylinder  pin  (170)  in  left  hand  half crankcase.  Apply adhesive (Appendix D, Item 48)  to  both  sides  of  crankcase  gasket  (169) which is held in position by cylinder pin (170). Assemble the two crankcase halves (175 and 172)   together   and   secure   with   screws   (166 and   174).      Install   needle   bearing   (98)   on clutch  end  of  crankshaft  and  needle  bearing (168) in connecting rod. (2) Assemble    fuel    hose    (164),    sleeve    (163), nipple  (162),  hose  (161),  strainer  (160),  vent kit (159) and filter (158) onto tank (165). (3) Install    tank    into    crankcase    and    complete assembly  by  installing  O-ring  (157)  and  cap (156). (4) Install  piston  (154)  onto  connecting  rod  with pin (153) and two lock rings (152).  Install two rings  (155)  onto  piston  (154).    Thoroughly  oil piston    (Appendix    D,    Item    37)    and    rings. Compress rings with a suitable ring compressor    and    install    gasket    (151)    and cylinder (150) with four screws (148) and four nuts (149). (5) Install contact spring (146) with screw (145). (6) Install  stop  button  (143)  in  left  bracket  (137) and  choke  button  (142)  in  right  bracket  (134) and  secure  with  pins  (144).    Connect  choke rod (67) to choke button (142). 5-18

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