Test procedure for motor, Figure-1 figure-2 – Ramsey Winch DC-7/DC-7B User Manual

Page 22

The Ramsey Winch motor is a (4 pole-4 coil) series wound 12 volt or 24 volt DC motor. The 4
pole, 4 coil feature provides high torque at low speeds. To test the motor to determine if it is
functioning properly, fi rst securely fasten the motor to a bench or work surface so it will not jump
or move around during test procedure (the starting torque of motor is high).

1. Connect a jumper wire (at least a number 6 wire) from F-1 to “A” motor terminals

(See Figure 1).

2. Attach a wire (at least a number 6 wire) from positive ( + ) battery terminal to F-2

motor terminal. Ground negative(-) battery terminal to motor isolated ground terminal.

(See Figure 1). Motor should now run.

To reverse the direction of rotation:

1. Attach jumper wire from F-2 to•• motor terminals (See Figure 2).
2. Attach wire from positive (+)battery terminal to F-1 motor terminal. Ground negative(-)
battery terminal to motor isolated ground terminal (See Figure 2).

NOTE: Always attach battery wire solidly to motor terminals. Make and break the connection of
negative (-) battery terminal at the motor isolated ground terminal. This avoids burning the mo-
tor terminals.
CAUTION: Do not run the motor for a long period of time in fashion mentioned above, because
the motor could become damaged.

The motor running idle on the bench will draw 55 amperes and must run free and easy. If the
ampere draw is more than 60 amps and the motor runs rough or has a strange sound, it should
be replaced. With the motor attached in place on a winch (less cable on arum) the ampere draw
should be approximately 65 to 70 amps.

If after following the procedure outlined, the test on the winch signifi cantly exceeds 70 amperes
refer to your Owners Manual for trouble shooting suggestions on the mechanical portion of the
winch. See Figure 3 for the solenoids connection to the motor and the battery

TEST PROCEDURE FOR MOTOR

ISOLATED

GROUND

BATTERY

MOTOR-CLOCKWISE ROTATION

MOTOR-COUNTER CLOCKWISE ROTATION

CCW

BATTERY

ISOLATED

GROUND

FIGURE-1

FIGURE-2

ISOLATED GROUND

TERMINAL

BATTERY

THE DASHED LINES ARE CURRENT'S PATH IN FORWARD ROTATION.

SOLID LINES ARE CURRENT'S PATH AT ALL TIMES.

NOTE: DIRECTION OF MOTOR ROTATION DEPENDS ON WHICH SMALL

TERMINAL OF EITHER SOLENOID IS CONNECTED TO BATTERY'S

POSITVE TERMINAL.

BATTERY

ISOLATED GROUND

TERMINAL

THE DASHED LINES ARE CURRENT'S PATH IN REVERSE

ROTATION. SOLID LINES ARE CURRENT'S PATH AT ALL TIMES.

SOLENOIDS TO MOTOR CONNECTIONS

FIGURE-3