TABLE OF CONTENTS
1 INTRODUCTION.................................................................................................... 1
2 OPERATOR SAFETY ............................................................................................ 2
3 BASIC UC4 OPERATION ..................................................................................... 3
3.1 NORMAL OPERATING SCREEN ............................................................... 3
3.2 C
HANGING TO AUTOMATIC OR MANUAL MODE .................................... 4
3.3 A
DJUSTING THE TARGET HEIGHT (SETPOINT) ....................................... 5
3.4 V
IEWING THE ACTUAL BOOM HEIGHT .................................................. 5
3.5 C
HANGE THE SYSTEM SENSITIVITY (SENSI) ........................................ 6
3.6 C
HANGING BETWEEN SOIL AND CROP MODE ...................................... 6
3.7 P
ERFORMING A RETUNE ........................................................................ 7
4 COMMON SYMPTOMS AND SOLUTIONS ...................................................... 8
4.1 GENERAL OPERATION ........................................................................... 8
4.2 S
ENSOR RELATED ISSUES .................................................................... 10
4.3 H
YDRAULIC RELATED ISSUES ............................................................. 14
4.4 B
OOM INSTABILITY AND MAIN LIFT .................................................... 18
4.5 A
CTIVE AND PASSIVE ROLL ................................................................ 19
5 UC4 ERROR MESSAGES .................................................................................... 21
5.1 SYSTEM SETUP ERROR MESSAGES ...................................................... 21
5.2 O
PERATIONAL ERROR MESSAGES ....................................................... 23
6 SENSOR AND ROD ALIGNMENT .................................................................... 25
6.1 WING SENSORS.................................................................................... 25
6.2 P
ASSIVE ROLL SYSTEMS ...................................................................... 26
6.3 A
CTIVE ROLL SYSTEMS ....................................................................... 28
7 QUICK REFERENCE .......................................................................................... 30
8 STATEMENT OF LIMITED WARRANTY ....................................................... 33