Jeppesen Oral- Chapter 8 (Electrical, Starting and Ignition Systems) Flashcards
By visually inspecting the amount of wear groove remaining on the brushes.
Commutator and brushes should be checked for wear
both
GPU, APU, bleed air from running engine
A specific number of degrees before TDC on the compression stroke
It produces a high voltage that forces a spark to arc across the electrodes at the sparkplug end
Permanent magnet, soft iron core, laminated pole shoes, primary and secondary windings, coondensor, contact breakers, on/off switch, primary and ground leads, distributor,
- Magnetic circuit 2. Primary circuit 3. Secondary circuit
A point a few degrees past the neutral position of rotating magnet where maximum magnetic stress exist
condenser
When the magneto is in E-gap, the contact breakers open which abruptly interupts the current flow in the primary circuit, causing high flux change rate, inducing high voltage in secondary coil
connects the ignition switch to the primary circuit. When ignition switch is turned off, both leads are grounded. When the ignition switch is turned to the left, the right is grounded and vice-versa
Use for both internal and engine timing, indicates exact position of E-gap
High energy sparks clean off any deposits
Allows operation of the ignition system for given amount of time followed by minimum cooling down period
