TM 10-3930-675-20-1
0042 00-1
TOPHANDLER SLEWING TROUBLESHOOTING
0042 00
THIS WORK PACKAGE COVERS
Error Code 128 - Joystick-to-ECU (790) Failure
Error Code 130 - Overload Protection System Failure
Error Code 255 - Tophandler Clockwise Slewing, Wir-
ing Circuit Failure
Error Code 256 - Tophandler Clockwise Slewing, Com-
ponent Failure
Error Code 258 - Tophandler Counterclockwise Slew-
ing, Wiring Circuit Failure
Error Code 259 - Tophandler Counterclockwise Slew-
ing, Component Failure
INITIAL SETUP
References
TM 10-3930-675-10
Current Supply (A34738.0200) (WP 0199 00-31)
ECS Electrical Servo (A34648.0200) (WP 0199 00-5)
ECS Attachment (A34652.0200) (WP 0199 00-23)
NOTE
•
Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrations
that locate critical components.
•
Refer also to illustrations at end of work package for component location.
Table 1. Error Code 128 - Joystick-to-ECU (790) Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 128 - Joystick-to-ECU (790) Failure
1. Enter “DIAG SERVO 6 (13)”
menu and check SLEW CW/
CCW voltage. If voltage is
out of range, perform the
following steps:
a. Remove ECU (790) cover
from operator’s seat base
and slide ECU mounting
tray out (WP 0079 00).
