TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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clamp (2) and remove clamps from hoses. Discon- nect and remove fuel retu hose (3) and remove fuel return check valve (4) from elbow in the injec- tion pump. Remove self-locking nut and flat washer securing breather tube cushioned clamp (5) to rear fan drive housing and remove cushioned clamp from breather tube. Remove self-locking nut secu1·ing turbosupercharger oil hose cushioned clamp (6) and fil'e extinguisher tube cushioned clamp (7) to fan drive housing and remove clamps from hose and tube. l Cushioned clamp 2 Cushioned clamp 3 Fuel retu hose Fuel retu check valve 5 Cushioned clamp G Cushioned clamp 7 Cushioned damp 8 Fire extinguisher tube 9 Breather tube 10 Turbosupcrcharger oil inlet hose Figure ·61. Remwinq or itistolli11qf1ul ret11m liose, murfe/ AVDS-1790-C a1t<I AVDS-1790-20 Mqines. . TM 9-2815-220-34 a.I. Remove machine screw and self-locking nut attaching turbosupercharger oil hose cushioned clamp (1, fig. 3-51.1) fuel return hose cushioned clamp (2) and remove clamps from hoses. Discon- nect fuel return hose (3) from elbow in fuel return check valve (4). Remove self-lking nut and ma- chine screw and remove fuel return hose cush- ioned clamp (5) and breather tube dushioned clamp (6). Remove self-locking nut and remove cushioned clamp (7) from fire extinguisher tube. Remove self-locking nut and Oat washer securing breather tube cushioned clamp (5, fig. 3-51) and remove clamp from breather tube. b. Remove three screws and self-lking nuts attaching crankcase breather tubes, fuel inlet hose and fuel injection pun3p electrical lead cushioned clamps (1, fig. 3-52). Remove three small cushioned clamps from electrical lead (2), three large cush- ioned clamps from crankcase breather tube (3) and the remaining two cushioned clamps from the fuel inlet hose (4). Disconnect and remove electrical lead and fuel inlet hose at the fuel injection pump. Loosen two hose clamps (5) and remove crankcase breather tube clamps and hose. Remove two self. locking nuts and remove crankcase breather tube assembly (6). Remove and discard gasket. b.l. Remove machine !crew and self-locking nut - and remove two cushioned clamps (1, fig. 3-52.1) secul'ing the fuel retu hose to the breather tube. Remove two self-locking nuts and machine screws and remove six cushioned clamps (2) securing the electrical lead (3) and fuel injection pump fuel inlet hose (4) to the breather tube. Remove self-locking nut and machine bolt and remove two cushioned �· l Cushioned clamp 3 Fuel retu hose 5 Cushioned clamp 2 Cushioned clamp •I Fuel retu check valve G Cushioned clamp 7 Cushioned clamp Figure 3-51. I. Disco1111ecti11g or cu1111ecti11g fuel ret1u·11 liose, model AVDS-1790-DR e11gi11e. Change 1 3·29