TM    9-2815-202-34 (2)  Protection  of  Unserviceable Assemblies. The following methods should be used  in  protecting  any  unserviceable engine  assembly. (a) Loosen clamp (42) securing hose (43) to left rocker arm cover breather  (44).  Remove  hose. NOTE For  models  7083-7396  and  7083- 7399, removal of left rocker arm cover  requires  removing turbocharger  air  outlet  tube. (b) (c) (d) (e) For  model  7083-7396  only, loosen  four  clamps  (49) connecting air outlet tube (50) to turbocharger and air inlet. Slides hoses (51 ), and clamps onto outlet tube and remove tube. For  model  7083-7399  only, disconnect  hose  assembly  (52), at air inlet housing (54). Loosen two  clamps  (53)  connecting  air inlet  housing  to  turbocharger. Slide hose (59) and clamps onto housing.  Remove  three  bolts  (55 and 56), six Iockwashers (57) and six  flat  washers  (58)  securing  air inlet  housing.  Remove  housing. Remove two left rocker arm cover bolts (45), two flat washers (46), and two rubber isolators (47). Remove left rocker arm cover(48). Slowly pour one-half gallon of engine  oil  over  valves  and  valve train  components  of  cylinder head. 3-21