Gravely Promaster 300 Service Manual page 46

Promaster 300 - Kohler Engine
Key Switch
Red (B)
Purple (A)
Red / Violet (S2)
Brown (S1)
Contact resistance is 0.1 - 0.3 ohms when correct.
Relay, Seat
Pink (85)
Purple (86)
Yellow / Red (87)
Purple (30)
Open (87A)
Pin 85-86 Coil resistance 87-100 ohms.
Pin 30-87 Normally open. Pin 30-87A Normally closed.
Contact resistance is 0.1 - 0.3 ohms when correct.
Coil activated when operator is in seat.
Relay Start
Black (85) To Ground
Yellow / Red (86)
Open (87)
White / Black (87A)
Black (30) To Ground
Pins 85-86 Coil resistance 87-100 ohms.
Pin 30-87 Normally open. Pin 30-87A Normally closed.
Contact resistance is 0.1 - 0.3 ohms when correct.
Time Delay Module
Pink
Black
Green / White
Time delay used on Models 990015 S/N 000234 & up. See Service Letter 1071.
Module can not be tested for correct operation.
Off
12.00 Vdc 12.00 Vdc
12.00 Vdc
12.00 Vdc
Off
12.00 Vdc
12.00 Vdc
12.00 Vdc
12.00 Vdc
Off
12.00 Vdc
Engine Coil
Off
12.00 Vdc
12.00 Vdc
12.00 Vdc
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Run Start
12.00 Vdc
12.00 Vdc
12.00 Vdc
12.00 Vdc
Run Start
12.00 Vdc
12.00 Vdc
12.00 Vdc
12.00 Vdc
Run Start
12.00 Vdc
Run Start
12.00 Vdc
12.00 Vdc
12.00 Vdc