Johnson 40-6519 User Manual

©2017 Johnson Level & Tool - Rev. 1 1
Self-Leveling Rotary Laser
Model No. 40-6519
Instruction Manual
Congratulations on your choice of this Self-Leveling Rotary Laser. We
suggest you read this instruction manual thoroughly before using the
instrument. Save this instruction manual for future use.
This is a Class IIIa laser tool and is manufactured to comply with CRF 21,
parts 1040.10 and 1040.11 as well as international safety rule IEC 285.
1658i-English_Manuals 1/11/17 11:50 AM Page 1

Johnson 40-6519 Specifications

General

Model	40-6519
Category	Measuring Instruments
Type	Digital Multimeter
Power Source	9V Battery
Battery Test	Yes
Display Type	LCD
Units of Measure	Volts, Amps, Ohms
DC Voltage Range	200mV, 2V, 20V, 200V, 600V
AC Voltage Range	200V, 600V
DC Current Range	10A
Resistance Range	200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ

Summary

Kit Contents

Features and Functions

Safety Instructions

Location of Warning Labels

Location of Parts and Components

Operating Instructions

Battery Installation

Instructions for installing batteries in the laser unit, including removing the cover and ensuring correct polarity.

Using the Product

Power On/Off the Laser

How to turn the laser on and off, and interpret the power LED indicator status (on, off, low battery).

Change Rotating Speed

Procedure for cycling through low, medium, and high rotation speeds and understanding the corresponding LEDs.

Manual vs. Self-leveling Operation

Guidance on switching between manual and self-leveling modes and the conditions for self-leveling.

Leveling the Laser for Vertical Mode

Steps to attach the leveling base and adjust the laser for vertical use using the bubble level.

Laser Placement

Application Demonstrations

Troubleshooting Guide

Calibration

X- and Y-Direction Accuracy Verification

Procedure to check the accuracy of the laser's horizontal and vertical beams by marking points and measuring distances.

Accuracy Calibration

Detailed steps for adjusting the laser's X and Y directions using fine-adjustment bolts to correct calibration errors.

Accuracy Self-Check for Plumb Beam

Method to verify the calibration of the vertical plumb beam by marking points on the ceiling after rotating the laser.

Vial Calibration

Steps to adjust the laser's internal vial to ensure accurate leveling, using a hex wrench for fine adjustments.

Technical Specifications

Care and Handling

Product Warranty

Warranty Registration

Accessories