Harley Davidson Panhead. Service manual (1948-1957 Rigid) - page 14
REMOVING CIRCUIT BREAKER (Fig. 5F-2)
Thoroughly clean area around circuit breaker and blow all loose dirt
from crankcase with compressed air, and proceed as follows: On manual
advance types, disconnect spark control wire from circuit breaker
adjusting stud (17). Remove circuit breaker cover (1) and unlatch cover
retainer (2) from holes in base (10 or 10A). On automatic advance type,
remove screw and lockwasher (2A) to remove circuit breaker cover (IB).
GLIDE MODEL
