User Manual

Systems and Equipment - 148 JT20 Operator’s Manual
Diagnostic Codes
CMW
®
65 no continuity to thrust/right track
neutral valve
cruise control is blocked essential
71 no continuity to drive selector valve drive is blocked essential
111 no continuity to left track reverse
solenoid
drive is blocked essential
112 no continuity to right track forward
solenoid
drive is blocked essential
113 no continuity to right track reverse
solenoid
drive is blocked essential
114 no continuity to drilling fluid pump
solenoid
code is stored essential
131 no continuity to thrust rear home
switch
add pipe and remove pipe are
blocked
non-
essential
132 no continuity to thrust front home
switch
add pipe and remove pipe are
blocked
non-
essential
133 no continuity to shuttle home switch add pipe and remove pipe are
blocked
non-
essential
134 no continuity to front wrench switch add pipe and remove pipe are
blocked
non-
essential
144 drive joystick left/right out of range drive is blocked essential
145 drive joystick forward/backward out of
range
drive is blocked essential
151 drill joystick left/right out of range rotation and cruise control are blocked essential
152 drill joystick forward/backward out of
range
rotation and cruise control are blocked essential
154 drilling fluid potentiometer out of
range
code is stored essential
161 no continuity to front pipe box switch code is stored non-
essential
162 no continuity to rear pipe box switch code is stored non-
essential
163 no continuity to pipe up switch pipe box movement is blocked and
code is stored
non-
essential
164 no continuity to tracker control input code is stored non-
essential
166 no continuity to thrust rear stop switch code is stored non-
essential
Code Condition Result Severity