Norton Abrasives C3120, C6120, C3126, C3130, C6136, C6130, C6126 G. Motor Start Solenoid Switches

2.Use a circuit "test light" to test switch. (See Test Equipment Section)

3.Remove the wires from the switch and "touch" them together in the proper order to operate system.

NOTE: All switch control stations subjected to the weather should be mounted so that the cord exits the bottom to prevent water from entering the box.

G.Motor Start Solenoid Switches

The three post solenoid switch is wired and constructed as follows:

1.The large post marked "Bat' must be attached to he cable leading from the battery.

2.The small post connects to the control circuit. (Contact finger, push button, toggle switch, etc.) The remaining large post attaches to cable leading from motor.

NOTE: Do not attach motor cable to post marked "Bat" as solenoid will not operate properly.

4.Internally, the coil is constructed with one end connected to the post marked "Bat" and the other end to the small center post. With the battery cable connected to the post marked "Bat," the solenoid switch is energized by grounding the small post: which in turn closes the main contacts and starts the motor.

NOTE: When testing, use an OHM meter, continuity light or test light, and check all functions as described above. (See Test Equipment Section)

H. Shorts, "Ground Faults" and "Open" Circuits

In control wiring, shorts can only occur when "hot" lines (lines connected directly to the battery) come in contact with ground. A short will either cause a fuse to blow, if there is one, or bum the wire off at its weakest point. Likely spots for shorts are switches, electrical strain relief, electrical junction boxes and control cord that has been pinched or cut. Grounding faults are much like shorts except they occur on the opposite side of the electrical component. (Valve solenoid or motor solenoid start switch.) A "ground fault" will cause the coil in the motor solenoid switch or valve to remain energized. This type of failure can happen because switching is done in

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