TM10-3930-660-20 8-12. CIRCUIT  BREAKERS   - REPLACE This task covers: a. Removal b. Installation Initial Setup Tools Materials/Parts Tool Kit, Automotive Mechanics Lockwashers  (5) Lockwashers  (11) Equipment  Condition Loctite 242 (App. C, Item 39) Vehicle parked on level ground. Negative battery cable disconnected, para.  8-44. The circuit breakers are reached through the access hole at the base of the operator’s console. All ten circuit breakers are installed and removed in the same manner. The circuit breakers protect the entire electrical system except for the power circuit to the emergency steer pump. The circuit breakers will trip if there is a shorted or grounded wire. The circuit breakers will automatically reset after cooling. They cannot be reset  manually. Under normal operating conditions, circuit breakers should never require replacement. However, if a circuit breaker does not reset after it has cooled, the circuit breaker is defective and must be replaced. REMOVAL 1. REMOVE FOUR CAPSCREWS (1) AND ACCESS COVER (2) AT BASE OF OPERATOR’S CONSOLE  (3) 8-27