CYLINDER HEAD & VALVES - CONT - TM-5-3820-256-24-5

CYLINDER HEAD & VALVES - CONT - TM-5-3820-256-24-5_206

CYLINDER HEAD & VALVES - CONT - TM-5-3820-256-24-5_208

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 CYLINDER HEAD & VALVES Section 3 Figure 36. - Valve Lever and Shaft Assembly 1. Rocker arm 2. Support bracket 3. Spring 4. Shaft 5. Snap ring Valve Lash Adjustment NOTE: DO NOT adjust valves with the engine running. Severe damage can result from inserting feeler gauge between valve and valve lever due to close clearance of valve to piston. NOTE: Valve lash may be adjusted as a separate operation without cylinder head and valve lever removal, disassembly, cleaning, inspection or repair as previously described. All valves are adjusted by cranking the engine only twice. Perform valve lash adjustment with the engine "warm" which means any temperature above freezing. -IMPORTANT- The Valve Lash Adjustment Chart reflects specification changes which result from the revised intake ramp height of the 400 Series Camshaft. The intake valve lash specification has been increased from .51 mm (0.020 in.) to .64 mm (0.025 in.). A common valve lash setting of 0.025 in. now exists for both intake and exhaust valves on 400 Series Engines (see Valve Lash Adjustment Chart). CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 27

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