
4 Center Pivot 7000, 8000, 8120 Series
TABLE OF CONTENTS
MAINTENANCE............................................................................................................................................... 63
Safety.................................................................................................................................................................................63
Wheel Gearbox 7000 Series..............................................................................................................................................64
Center Drive Gearmotor 7000 Series ................................................................................................................................65
Wheel Gearbox 8000/8120 Series.....................................................................................................................................66
Center Drive Gearmotors 8000/8120 Series .....................................................................................................................67
Helical Gearmotor...........................................................................................................................................................67
Worm Gearmotor ............................................................................................................................................................67
Tire and Wheel ..................................................................................................................................................................68
Towable Hub Lubrication.................................................................................................................................................68
Wheel Lug Nut Torque ....................................................................................................................................................68
Tire Pressures ................................................................................................................................................................68
Barricade ..........................................................................................................................................................................69
Wheel Tracks .....................................................................................................................................................................69
Engine/Generator ..............................................................................................................................................................69
Miscellaneous....................................................................................................................................................................70
Flex Hose Replacement..................................................................................................................................................70
Bonding Ground Wire .....................................................................................................................................................70
Electrical and Grounding Conductors .............................................................................................................................70
Pivot Swivel Lubrication..................................................................................................................................................70
2 Wheel E-Z Tow Pivot Swivel Bearing Lubrication.........................................................................................................71
Standard and 4 Wheel E-Z Tow Pivot .............................................................................................................................72
Pivot Mounted Auto Reverse Adjustment.....................................................................................................................72
Mechanical Stop In Slot Adjustment ............................................................................................................................73
Pivot Mounted Auto Reverse Adjustment.....................................................................................................................74
2 Wheel E-Z Tow Pivot....................................................................................................................................................75
Mechanical End Gun Ramp Adjustment......................................................................................................................75
Mechanical Stop In Slot Adjustment ............................................................................................................................76
Pivot Mounted Auto Reverse Adjustment.....................................................................................................................77
Actuator Bolt Adjustment .............................................................................................................................................77
Pivot Mounted Auto Reverse Example Settings...........................................................................................................78
End Gun Arc Setting Example ........................................................................................................................................79
Machine Alignment ............................................................................................................................................................80
Tower Alignment - Three Tower Method..........................................................................................................................81
Standard Alignment Adjustment .....................................................................................................................................82
Modified Alignment Adjustment ......................................................................................................................................83
Pivot Floating Alignment Adjustment ..............................................................................................................................84
Setting Alignment Cable Tension.......................................................................................................................................85
2 Wheel E-Z Tow Power Supply Installation Example........................................................................................................87
Span Flushing Procedure ..................................................................................................................................................88
Winterization......................................................................................................................................................................91
Off Season Storage of Hose...........................................................................................................................................91
Off Season Storage of Electric Cord...............................................................................................................................91
Regular Maintenance ........................................................................................................................................................92
Pivot................................................................................................................................................................................92
Span ...............................................................................................................................................................................92
Sprinkler..........................................................................................................................................................................93
Alignment........................................................................................................................................................................93
Drive Unit ........................................................................................................................................................................94
Critical Torque Applications.............................................................................................................................................95
Hardware Identification ...................................................................................................................................................95
Torque Chart...................................................................................................................................................................95
Annual Maintenance Logs .................................................................................................................................................96
TROUBLESHOOTING ................................................................................................................................... 103
Safety...............................................................................................................................................................................103
In-Line Shut Down ...........................................................................................................................................................104
Tower Ahead Shut Down .................................................................................................................................................105
Tower Behind Shut Down ................................................................................................................................................106