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Contents
How to Contact Us:............................................................................................................. 2
External Parts Detail Model L1-M ..................................................................................... 3
External Parts Detail Model L1-S....................................................................................... 4
Internal Parts Detail Model L1-M....................................................................................... 5
Internal Parts Detail Model L1-S........................................................................................ 6
Housing & Lighthouse Model L1-S ................................................................................... 7
Motor Problems Model L1-M Only.................................................................................... 8
Motor Problems Model L1-S Only..................................................................................... 9
Power Problems ................................................................................................................ 10
Laser\Receiver Interaction ................................................................................................ 11
Calibration Problems ........................................................................................................ 12
Calibration Problems 2 ..................................................................................................... 13
Calibration Problems 3 ..................................................................................................... 14
Low Battery Indication – Not cured with new Batteries .................................................. 15
Laser Will Not Switch Grade Alarm Modes..................................................................... 16
Actual Slope Does Not Match Setting Indicated by Counter ........................................... 16
Basic Tools And Knowledge. ........................................................................................... 17
1. Special tool list: .................................................................................................... 17
2. Other tools and supplies needed: .......................................................................... 18
Periodic maintenance and service checks......................................................................... 19
1. Calibration check: ................................................................................................. 19
2. Alarm deadband check:......................................................................................... 20
3. Out of level alarm function check:........................................................................ 20
4. Motor stall and re-start check: (L1-M Only) ........................................................ 20
5. Beam power check:............................................................................................... 20
Repair Examples. .............................................................................................................. 21
1. Adjust both grade alarm deadbands:..................................................................... 21
2. Replace rotation motor:......................................................................................... 21
2. Replace main P.C.B.:............................................................................................ 21
IV Repair Procedures. ................................................................................................... 21
#101 Clean and Calibration ......................................................................................... 21
#103 Base Plate Removal and Replacement.............................................................. 22
#106 X-Axis Sensor Removal and Replacement...................................................... 24
#107 Circuit Board Removal and Replacement......................................................... 26
#108 Setting Grade Alarm Dead Bands..................................................................... 27
#109 Motor Removal and Replacement .................................................................... 28
#109-S Motor removal and replacement - For Model L1-S ........................................ 30
#110 Squaring Motor Assembly to Beam.................................................................. 31
#111 Penta Mirror Removal and Replacement.......................................................... 32
#111-S Penta Mirror Removal and Replacement ........................................................ 32
#112 Beam Power Adjustment .................................................................................... 33
#113 Vertical Vial Calibration Procedure.................................................................... 33
PCB Layout....................................................................................................................... 35
Schematic for L1-M / S..................................................................................................... 36
L1-S Board Update Info.................................................................................................... 37
