Operation Manual

Rugby 410/420 DG Introduction4
1 Introduction
The Rugby Grade laser is designed to serve your needs in a wide variety
of applications.
It is a proven tool for increased production with substantial reduction of
labor, time and material costs. It can be used to accurately control land
leveling, sloped or level grading, trenching, open cut mining, dredging,
contouring of levees, general construction and excavation.
This manual contains operating and set-up procedures for common
applications. Its purpose is to describe the features of the Rugby and
how the Rugby operates. The manual is not intended to describe specific
applications. Contact your local dealer or Leica Geosystems for informa-
tion specific to your jobsite requirements.
The Rugby Grade lasers are rugged, accurate and fully electronic with an
operating range (diameter) of up to:
• Rugby 410DG: 2600 feet (800 meters)
• Rugby 420DG: 3600 feet (1100 meters)
The Rugby 410/420 DG is a dual grade laser and is capable of producing
an accurate plane of laser light for applications that are level (1), single
grade (2) or dual grade (3).
Alignment is as easy as sighting over the top of the Rugby to your control
point using the integrated alignment sights or the optional sighting
scope assembly. For increased accuracy, follow the procedure for "3.5
Precise Alignment of the Axes". For highest accuracy refer to the
Axis Alignment application.