MANIFOLDS - CONT - TM-5-3820-256-24-5

MANIFOLDS - CONT - TM-5-3820-256-24-5_178

MANIFOLDS - CONT - TM-5-3820-256-24-5_180

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 MANIFOLDS Section 2 CLEANING, INSPECTION & REPAIR Clean Manifolds as Follows: 1. Steam clean intake or intercooler and exhaust manifolds (after removal and disassembly) to dislodge dirt and carbon deposites. Inspect and Repair Manifolds as Follows: 1. Inspect the Intercooler or Intake manifold and exhaust manifold bodies and flanges for CRACKS and DISTORTIONS. Replace damaged parts. 2. Replace old gaskets with new gaskets at all mating surfaces. 3. DTI ENGINE ONLY: After disassembly, pressure check intercooler core for leaks at 380 kPa (55 psi) core leak check pressure. 4. Inspect exhaust manifold gasket flange for warpage as follows: a. Install all cleaned exhaust manifold sections (as a unit) to the cylinder head without gaskets. Tighten with washers and nuts. Torque to 81 N•m (60 Ibf-ft). b. Measure gap between cylinder head and exhaust manifold gasket flange face with a 6 mm (1/4") wide feeler gauge. If 0.38 mm (0.015") feeler gauge will pass gap in region shown in Figure 6, resurfacing of exhaust manifold gasket flanges must be performed with all sections of manifold assembly together. A maximum of 0.84 mm (0.025") material can be removed. Figure 6. - Exhaust Manifold Warpage Resurface Exhaust Manifold Gasket Flanges as Follows: 1. Assemble ALL exhaust manifold sections. 2. Grind a maximum of 0.64 mm (0.025 in) material from gasket flanges. 3. After grinding, wash all mating surfaces with solvent to remove loose material. CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 6

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