PROBLEM ANALYSIS GUIDE

PROBLEM ANALYSIS GUIDE - CONT - TM-5-3820-256-24-5_153

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
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SERVICE MANUAL INTRODUCTION Introduction PROBLEM ANALYSIS GUIDE PROBLEM: LOW INTAKE MANIFOLD PRESSURE (POWER COMPLAINT) REASON OR CAUSE: 1. Operator error... a. gauge inaccurate b. engine not properly loaded 2. External leakage... a. on intake or exhaust manifolds at gasket b. at air compressor and turbocharger mounting and housing clamps c. at the diaphragm or pressure feed line of the aneroid 3. Excessive... a. air cleaner restriction b. exhaust back pressure after turbocharger. 4. Incorrect... a. engine valve timing b. injection pump timing c. high idle adjustment (too low) d. linkage adjustment e. valve adjustment (too tight) f. injection pump on engine g. turbine housing A/R ratio or nozzle ring h. lift to port closure (start of injection) 5. Plugged... a. or defective injection nozzles b. or restricted fuel filters c. or loose fuel bleed valve CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 38

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