Figure 3-33. Radio interference suppression components.
Figure 3-34. Valve (rocker arm) adjustment, model 687C-18-ES engine.
personnel in maintaining the crane-shovel.
valve cover, and inspect gasket.
adjustable ball-ended screw in the rocker arm.
cylinder as it moves upward in the exhaust stroke.
covered in the applicable maintenance paragraphs.
adjusted cold, final adjustment must be made while hot.
engine (water temperature between 160F and 180F).
(1) Remove valve cover (para 3-55).
remove valve cover from cylinder head.
cylinder head (or cover) and discard.
clockwise until they are tight.
(cold) is obtained with thickness gauge.