Johnson 40-6551 User Manual

©2015 Johnson Level & Tool 1
Electronic Self-Leveling Horizontal
Exterior Rotary Laser Kit
Model No. 40-6551
Instruction Manual
Congratulations on your choice of this Electronic Self-Leveling
Horizontal Exterior 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 CFR 21,
parts 1040.10 and 1040.11 as well as international safety rule IEC 285.
!

8488H-English_Manuals 11/11/14 2:36 PM Page 1

Johnson 40-6551 Specifications

General

Laser Class	Class II
Laser Wavelength	635 nm
Self-Leveling Range	±4°
Laser Type	Red diode laser
Output Power	< 1 mW
Warranty	3 years
Working Range	Up to 200 feet with detector
Battery Type	3 x AA
Operating Temperature	14°F to 113°F
Accuracy	±1/8" @ 30'

Summary

Features and Functions

Safety Instructions

Location/Content of Warning Labels

Location of Part/Components

Operating Instructions

Using the Product

Powering On, Off, and Alarms

Covers how to turn the laser on/off, low battery alerts, and alarms when beyond the leveling range.

Technical Specifications

Operation Guide

Detector Operating Instructions

Detecting Laser Level Signals

Detector Functions

Self-Check and Fine Calibration

X-Direction Accuracy Self-Check

Outlines the procedure to verify the laser's accuracy along the X-axis.

Y-Direction Accuracy Self-Check

Details the procedure for verifying the laser's accuracy along the Y-axis.

Fine Calibration via Remote Control

Explains how to calibrate the laser using a remote control for precise adjustments.

X-axis Calibration

Y-axis Calibration

Care and Handling

Product Warranty

Trouble Shooting

Power, Spin, and Beam Issues

Calibration and Battery Issues

Charging, Calibration, and Alert Issues