Great Plains 4000-3S Assembly Instructions - Manual (Page 7)

2/17/2005 195-252M
Great Plains Mfg., Inc.
7 Installation Instructions
Mount Control Box
Figure 11
18987
Refer to Figure 11
1. Mount control box (1) in a convenient location
in tractor cab. Plug harness extension (2) into
control box. Connect control box to a 12-volt
power source such as your tractor battery.
NOTE: Connect red wire to positive terminal and
black wire to negative terminal.
2. Route wiring harness (3) through drill tongue.
3. Plug two-pin connectors (4) from wiring har-
ness into coils on block. Look for letters L, C
and R on leads to identify left, center and
right.
4. Plug wiring-harness lead into control-box
lead (5).
5. Secure wiring harness so it will not be dam-
aged during lifting, folding, transporting or
field turns.
6. Install solenoid (6).
On drills serial number YY1019 and earlier
with bypass valve at tractor:
Install solenoid (6) into front port in bypass
valve. Plug two-pin connector on harness ex-
tension (7) into solenoid.
On drills serial number YY1020 and later
with bypass valve on drill:
Install solenoid (6) into top port on bypass
valve (8).Plug two-pin connector from monitor
lead(s) marked with letter "S" into solenoid.