New Leader L3020G4, General Manual

Page: 45 / 111

P l e a s e G i v e P a r t N o . , D e s c r i p t i o n a n d U n i t S e r i a l N o .
HIGHWAY EQUIPMENT COMPANY
41
97372-B
Page Rev. A
TROUBLESHOOTING
Symptom : Spinner motors do not turn when spinner control valve is in running position or conveyor
does not run when function knob is pulled out and manually rotated. See reasons 1, 2, 3, 4,
5, 7, 8 & 9.
Symptom : Spinners turn but conveyor does not run in manual mode. See reasons 6, 8, 9, 10 & 11.
Symptom : Console in operation mode, but the conveyor does not move when the machine moves.
See reasons 6, 8, 9, 10 & 11.
Symptom : Spinner speed does not stay constant. See reasons 4, 5, 12, 13 & 14.
Symptom : Spinners run with cab control in “Off” position. See reason 15.
Symptom : Hydraulic oil overheats (200
°
F. or hotter). See reasons 1, 4, 6, 16, 17, 18 & 19.
Symptom : Light flashes and buzzer sounds intermittently. Conveyor runs in jerks. See reasons 20,
21, 22 & 27.
Symptom : Conveyor does not run with cab control “On”, PTO engaged and vehicle driving forward.
See reasons 23, 24 & 25.
Symptom : Conveyor runs when control switch in cab is in “Off” position. See reasons 16 & 26.
Symptom : Conveyor starts to run when PTO is engaged. See reasons 16, 23, 26 & 27.
Symptom : Controller application or programming. Refer to the control manual’s Troubleshooting
section.