Until the early 90s wire was insulated with pvc but it has since been phased out and replaced with tefzel. Cessna propeller aircraft customer care supplies and publications.
Cessna 152 Electrical System Switch Consumer Goods
Cessna split master switch wiring diagram. Wire gauges may vary depending on your electrical loads. 3401 hwy 21 w hangar 500 faribault mn 55021 airport identifier. The cessna split master part number 11 15900 does not include any specific wiring instructions. Purchased a cessna style mastersplit switch from ac spruce in order to eliminate toggle type switches for isolating the battery in the event of an alternator failure. If the master switch is turned on with the wire removed take precautions to prevent the field wire from touching anything that would allow it to short to ground. Edges of pages a little dirty the insides are.
Great people great products great service. The cessna maintenance manual supplies all information needed for this installation. The master switch does not turn on the power directly. The field wire should only be removed from the alternator with the master switch off. Im looking at the undocumented installation of an avionics master switch. The coil in the solenoid is connected to the battery positive cable post with a short jumper wire.
This manual may be found in the applicable model wiring diagram. It operates a solenoid which connects the battery positive cable to the starter and from there to the fuses. The voltage regulator can be ruined if that happens. When you operate the master switch it grounds the other end of the coil to operate. Left rocker normally used for alternator and right half for battery. The positive and negative terminals on the switch are reversible you may wire them in either direction.
The left side of the master switch provides 5 amp power to energize the alternator. Aircraft wiring usually consists of tin coated copper stranded wire covered by insulation. This is a wiring manual on cd for the cessna st aircraft. This versatile split beige master switch has been used in virtually all single engine cessna models since 1970 and can be used in most light aircraft with single alternator systems. Problem is that it did not come with any wiring diagram or have any of the tabs on the back of the swich marked. 22 25 08 in.
Its a simple 35a current protected spst switch in series with smaller breakers that power to all the com nav gps and xpdr gear on the airplane. It does happen to be a 35a switchbreaker installed at the load end of a 12 awg wire from the power bus. Cessna split master switch diagram. The switch is split to separate the two systems.
Gallery of Cessna Split Master Switch Wiring Diagram
