Case I. Drive Housing fails to steer left or right.
Step 1.
Check for proper voltage and polarity. Visually check to see that all wires are attached to proper control boardterminals. Consult appropriate wiring diagram for the model and board being tested. Check for any corrodedconnections. Clean / rewire, if necessary.
Step 2.
Check motor with known good test foot pedal or test the original foot pedal by performing Foot Pedal PCB TestProcedure (see page 3-4).
A.
If test pedal properly steers motor or if the original pedal tests bad as outlined on page 3-4, thenoriginal foot pedal is faulty. Disassemble faulty pedal to inspect if actuators are properly makingcontact on foot pedal board. Visually inspect foot pedal control board for collapsed / burnt domeswitches. Replace foot pedal board, if necessary.
A-1
. If dome switches are burnt, check drive housing for short between either of the drive housingwires and the metal portion of the drive housing itself. To do this, use a V.O.M. to check forcontinuity between the drive housing lead and a screw on the underside of the drive housing.
A-2.
If a short is found, disassemble the drive housing and insulate the wire terminals at the drivehousing’s servo motor to correct the shorted condition.
A-3.
Reassemble the drive housing and again check for shorts.
B.
If test pedal does not properly steer motor or if original pedal tests okay as outlined on page 3-4, thencheck the drive housing.
B-1.
Connect 12-volt power source directly to drive housing leads. If drive housing does not steer,open drive housing. Inspect servo motor and drive gears for binding/lack of lubrication.Service drive housing to correct malfunction, as needed. If necessary, re-lubricate thebushing and sleeve contact surfaces with Schaeffer’s #238 Moly Ultra Supreme grease or a
similar lubricant.