Test Net Wrap Actuator Current (Channel 018)

NOTE: Channel 018 allows operator use of EXTEND and RETRACT keys to position net actuator for service.

E52520-UN-26JUN03

A - COUNTER Key

B - EXTEND Key

C - RETRACT Key

To test actuator (motor and linkage):

1. Turn tractor key to ON position. Do not start tractor engine.

2. With monitor-controller in NET mode, press and hold COUNTER key (A) while turning monitor-controller ON.

3. Continue to hold COUNTER key and press PLUS key until CH 018 appears in digital display.

4. Release COUNTER key; digital display will change to show actuator static current flow reading of 0—1.

5. Use EXTEND and RETRACT keys (B) and (C) to operate actuator in both directions. Display must show a current flow reading between 1—8 while actuator motor is operating during mid stroke (no load).

   • Below normal readings indicate low tractor voltage, or poor or corroded harness connections
   • Above normal readings indicate binding linkage or partially shorted motor windings
   • Current spike reading indicates mechanical obstruction to linkage
   
   

6. NOTE: Net wrap actuator is at full stroke position when actuator is fully extended.

   Continue to operate actuator to full stroke position. Display must show stall (load) current reading between 22—30.

   • Below normal reading indicates bad or corroded harness connections
   • Above normal reading indicates partially shorted motor windings or actuator binding
   
   

7. Press EXTEND or RETRACT keys to move counterknife to home position.

8. Turn monitor-controller OFF. Turn tractor key to OFF position. Remove key.