Rotec AEROSPORT R2800, Руководство по эксплуатации, Страница: 52 / 87

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The 12volt starter is also of the automotive type and has an in built solenoid which once energised engages the drive
pinion whilst simultaneously connecting battery positive to the motor section and thus cranks the engine.
• During operation the starter motor draws a large amount of current from the battery so therefore the main earth
strap should be substantial and have a 250 amp capability, the length of the earth cable will determine the diame-
ter of cable required. The main earth cable should be connected directly from the negative battery to the ground
base of one of the starter motor mounting nuts. Or alternatively the (steel) airframe may act as the interface
between the negative battery terminal and the starter motor. In this case it should be noted that the airframe is no
longer isolated or “double insulated” and any battery positive contact will result in a “short” and possible fuse or
wiring damage may result.
• The starter motor has only two electrical connections they are both found on the starter solenoid. The large M8
stud is the main positive battery terminal and should be connected to the battery via the battery isolator or mas-
ter switch, again large battery cable in the order of 250amp is required for good cranking performance. The sec-
ond terminal on the solenoid is the switch or energise terminal this is a spade terminal and is connected to battery
positive on the cold or switched side of the master switch via a normally open spring return starter button switch,
4mm cable for this connection with a current draw of around 20 amps.
STARTER MOTOR
STARTER MOTOR WIRING REQUIREMENTS
WARNING:
TO AVOID HYDRAULIC LOCK, IT IS MOST IMPORTANT THAT IN YOUR WIRING DURING CONSTRUCTION THAT THE
STARTER MOTOR IS SEPARATED FROM THE IGNITION/MAG CIRCUIT. PLEASE CHECK THAT THIS IS SO BEFORE
STARTING THE ENGINE.
Unlike the self-energised magneto, the second ignition system requires external power to operate. It is to be used full
time as the alternator keeps everything charged. It is a solid-state unit and does not require adjustment.
• A factory made wiring harness is supplied with the Hall Effect electronic ignition system so wiring is kept to a min -
imum. The positive (+) terminal of the ignition coil requires a 5mm ignition positive supply this should be supplied
via a 25amp ignition switch. At the coil this will be terminated by a 5mm eye terminal placed under the positive
side of the coil which it will also share with the factory fitted eye terminal which supplies power to the ignition
module (pre wired).
• Connect the pre wired female three pin “Deans” plug to the male three pin “Deans” plug on the left hand distribu-
tor cap (rear perspective) Note the groove in the plugs signifying correct alignment.
• The small seven-pin black box ignition module should be mounted to a flat piece of alloy plate with the special
heat transfer cream applied to the metallic back of the module. The module should be earthed along with the
earth eye terminal protruding back from the supplied ignition harness plug boot.
• The auto style ignition coil should be mounted with the high-tension post vertical. It is for this reason that push on
coil terminals are not permitted as they are fighting gravity.
ELECTRICAL IGNITION
ELECTRICAL IGNITION WIRING REQUIREMENTS
NOTE:
Both the magneto and Electronic ignition timing are factory set prior to shipping.
ELECTRICAL
SYSTEMS