TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Remove 1. Remove pan head screw (A) and self-locking nut attaching two cushioned clamps to fuel return hose and turbosupercharger oil inlet hose. 2. Disconnect fuel return hose (B) from fuel return check valve (C) and remove hose. 3. Remove fuel return check valve (C) from fuel in- jection pump. Install 1. Install fuel return check valve (C) in fuel injection pump. 2. Install fuel return hose (B) and connect to fuel return check valve (C). 3. Position one cushioned clamp on fuel return hose and one cushioned clamp on turbosupercharger oil inlet hose at position shown. Install pan head screw (A) and self-locking nut securing clamps. Figure 5-73. Removing or installing fuel return hose-engines with rerouted Remove 1. Loosen two breather tube hose clamps (A). 2. Remove two bolts (B) and lock washers attaching crankcase breather tube tee to rear fan drive housing. 3. Remove tube tee. Remote and discard tube tee gasket (C). Install 1. Position a new tube tee gasket (C) on rear fan drive housing. Position crankcase breather tube tee on housing. 2. Install two bolts (B) and lock washers securing tube tee to drive housing. 3. Tighten two breather tube hose clamps (A). Figure 5-74. Removing or installing crankcase breather tube tee-engines with rerouted crankcase breather tube. fuel return hose. 5-44