Internal operating parts or the bell mechanism shall be inspected every three months or whenever faulty action of the gong indicates that attention is required.

Remove bell cover casting with gong attached to make this inspection.

Check wearing surfaces of striker hub pawls JH48221 and stationary bel1 tripper JH48222 and replace if badly worn.  Remove gummed oil and dirt and apply Pale semaphore Oil on the pivot pins and a small amount of light grease at the point where the tripper engages the pawls.

Replace rubber buffers JHi48053 if worn or grooved from contact with the striker hub or if distance between the ends of the bell tripper and striker hub pawls is less than 1/8".  When installing new buffers adjust their length to provide a clearance of 3/16” between the ends of the bell tripper and striker hub pawls.

Bearing surfaces of striker hubs, JH48208R and L, are to be kept free of gummed oil and dirt and lubricated with Pale semaphore Oil. Disassemble for cleaning if necessary.

Bell ringer springs, JH48015R and L, are to be re-placed if broken or badly distorted from their original shape.  A properly adjusted spring will appear as shown in Fig. 7.  With the bottom leg of the spring, which engages with the striker hub, held against a flat surface the leg of the spring which engages the spring stop should be at ap-proximately “right angle" to the flat surface.

Bell strikers JH 48016 should strike the gong with equal force to obtain uniform sound.  Strikers are adjustable by means of cap screw JH48028 and they are to be set so that the mechanism in the ver-tical in operating position, gives a clearance of approximately I/8" between the striking edge of each striker and the gong shell.  Tighten cap screws when adjustment is complete.