Johnson Level 40-6266 User Manual

GL56 MSHA Alignment Laser Specs and Operation Instructions.

Warning

Do Not Direct The Laser Light Into The Eye!

Power: 532nm, Class IlIa Green Beam Diode Laser

<5 mw Maximum Output
2 Size “AAA” Alkaline Batteries
Battery Life: 4-5 hours continuous use

Range: >1,500 ft
MSHA Approval Number: 18-A070010-0 Permissible
Constructed from solid brass with an "0" ring seal, the GL56 Mining

Alignment Laser is water tight to +1atmosphere. Integral mounting is
provided for use with spad or other style support. The Laser Beam is
concentric to the outside diameter of the battery compartment. This
product is tested for Intrinsic Safety and is MSHA approved for use in
Methane/Air mixtures only. When properly maintained, it is MSHA
approved for use with 1.5 volt "AAA" Duracell MN2400 or Eveready E92
batteries. Replacement of the batteries must be performed in fresh air
ONLY. When replacing the batteries, the negative end goes into the
laser first. All positive ends must point towards the switch cap. All
batteries must be replaced at the same time. Never attempt to reuse
batteries. Do not mix batteries of different manufacturers or types.

OPERATION

The laser is shipped with an insulator to prevent the batteries from
powering the unit and discharging during shipment and storage. It must
be removed from the under the switch cap prior to use. To remove it,
unscrew the switch cap completely, remove the cardboard insulator and
replace the switch cap. Operation of the laser is simple and
straightforward. Two hanging brackets with adjustable tabs are integral
on the laser top and are used to suspend the laser from two spads or

some other means of sturdy roof support. Bailing wire, chain, rope or other means of
suspension can be used to hang the laser and provide a means of adjusting for
elevation. This laser has sufficient mass to help prevent it from swaying in entries with
high airflow. The end cap is turned in the clockwise direction until the laser is powered.
Do not over tighten. Turn in the counterclockwise direction to turn the unit off. When
the laser fails to power up, the batteries will need to be replaced. To replace the
batteries, unscrew the switch cap completely, remove the old batteries and inspect the
interior of the battery compartment for signs of dirt, moisture or leakage from the
batteries. Correct any problems with acid leakage or case sealing before installing new
batteries. Replace the batteries in fresh air ONLY. When replacing the batteries, the
negative end goes into the laser first. All positive ends must point towards the switch
cap. All batteries must be replaced at the same time. Do not attempt to reuse batteries
or mix batteries of different manufacturers or types. Other than the batteries, there are
no user serviceable parts on the laser. This product is warranted for a period of one
year from the date of purchase for manufacturing defects. The manufacturer reserves
the right to repair or replace this product if it fails due to manufacturing defects during
the warranty period. Abuse, neglect or disassembly of the laser voids this
warranty. Like any other tool, the service that this product will provide is dependent on
the care it receives. Please return it to your nearest Mine Supply Dealer for service
and repair.

Model GL56 MSHA GL56 Alignment Laser complete with 2 AAA Alkaline

Batteries .

Model GL2000 Optional Cylindrical Lens Line Generator Used with GL56

Alignment Laser. Projects a 10 foot line from a distance of

100 feet.

Model AP30 Optional Soft Carrying Case 12” Long, Plush Lined and

Padded with Full Length Zipper.

AP354S Stainless Steel Tabs with Slots for Spad Mounting

Pointed Thumb Screws 1 Pair of Stainless Steel Thumbscrews that replace

adjustable set screws.
Manufactured by: Laser Tools Co., Inc., 12101 Arch St.
Little Rock, AR 72206, Phone [phone]
FAX [phone] e mail [e-mail]
Web site: http://www.Lasertoolsco.com