NMWR-9-2815-220 Overhaul Manual for M60 M88 Engine AVDS-1790-2CA, AVDS-1790-2DA, AVDS-1790-2DR Download
Page 572 of 1014
NMWR 9-2815-220 INDUCTION HEATER SYSTEM OVERHAUL—Continued 0027 00 CLEANING 1. Refer to WP 0005 00 for general cleaning instructions. CAUTION The valves contain rubbing parts and should not be immersed in cleaning compound solvent. 2. Solenoid Valve. Plug inlet and outlet openings to prevent entrance of foreign material. Clean solenoid valves with a wiping rag moistened with cleaning compound solvent. 3. Filter, Fluid, Pressure. Clean the filter (25, Figure 1) by reverse flowing with clean cleaning compound solvent. INSPECTION 1. Inspect components not covered by an OIP in accordance with WP 0005 00. 2. Refer to WP 0005 00 and the OIPs in Table 1 for specific inspection criteria for selected items. 3. Discard all mandatory replacement parts. Refer to Figures 1 and 2. 4. Inspect solenoid valves for cracks and dents. Install suitable fittings, actuate the solenoid valve with 24 volt dc current, and pump fuel through the valve. Free fuel flow through the valve indicates the valve is functioning normally. Restricted fuel flow indicates a faulty electrical circuit or improper torque setting of acorn nut. Loosen acorn nut and torque nut to 50 pound inches. Recheck solenoid operation. If valve is still inoperative, replace valve. Test valve for leakage. Pump fuel through valve and close valve by turning off 24 volt dc current, valve must not leak at 100 psi. Table 1. Components Requiring Overhaul Inspection. COMPONENT OIP Right and left bank manifold air heater housing (item 14, 11642092-1 (Left) and Figure 1) and (item 2, Figure 2) 11642092-2 (Right) (Table 2) Right and left bank manifold ignition unit (item 22, 7060198 (Left) and Figure 1) and (item 21, Figure 2) 305001 (Right) (Table 3) Damper end right bank solenoid valve angle bracket 11684100 (Table 5) (item 28, Figure 1) Flywheel end left bank solenoid to shroud solenoid 11684101 (Table 4) bracket (item 34, Figure 2) REPAIR ASSEMBLY 1. Refer to WP 0005 00 for general assembly procedures. 2. Assemble induction heater system in accordance with TM 9-2815-220-34. 0027 00-2 Change 1 Refer to WP 0005 00 for general repair instructions.