Great Plains PFH-20 Operator Manual - Manual (Page 14)

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Section 1 Assembly and Setup
PH-15, PH-20, PFH-15 and PFH-20 Coulter Command System 148-384M 6/21/2004
Great Plains Mfg., Inc.
Control Box
1.
Mount the control box, Figure 1-9, at a convenient lo-
cation in the tractor cab. Connect the 12’ extension ca-
ble to the 9-pin connector on the back of the control
box and route the cable back toward the tractor draw-
bar area making sure it will not get kinked or pinched.
2. Connect the power cord to a good uninterrupted 12
volt power source on the tractor. Connecting directly to
the battery is recommended. Plug the cord into the
lead with the 2-Pin connector on the back of the con-
trol box. The polarity of the power supply is very im-
portant to prevent circuit damage. The white wire of
the power cord must be connected to the "+" positive
battery terminal and the black wire to the "-" negative
battery terminal.
Figure 1-9
Control Box
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