Instruction Manual

Control and Harness Diagram

Model # SP-7550

Key Part No. Description Qty

1 D5524 Spreader Harness | 87-1/4” 1

2 D5525 Spreader Control | SP-7550 1

3 D6118 Dust Cover | Standard 1

4 D6170 Connector Adapter | 6” Anderson 1

5 D6237 Power Switch | 5 Terminal 1

6 D6322 Vehicle Harness | 311” 1

7 D6341 Control Power Cable | 156” Pro 1

8 D6343 Dust Cover | Pro 2

9 D6354 Vibrator Switch | 3 Terminal Red 1

10 D6784 Utility Work Light 1

11 D6785 Spreader Auxiliary Harness | 56” 1

12 D6786 Vehicle Auxiliary Harness | 310” 1

IMPORTANT: In the off season remove control

and put in a cool dry place. The interior summer

temperatures could damage circuit board and

void warranty.

IMPORTANT: Do Not modify harness length. Any modications

will void warranty.

Special Notes:

1) All external connections must have dielectric grease.

2) Read lead labels before attaching to power source or ground.

3) No other devices may be spliced into wiring harness.

4) Any repairs to wiring harness must be done with heat shrink butt

connectors.

See CHMSL page 15