CHAPTER 2. GRADIO DISPLAY SYSTEM (D7F, D7G, D7H, AND D7R DOZERS AND 613B AND 621B SCRAPERS)

Definitions of Technical Terms.

Capabilities

Laser Leveling Equipment (Lle) For Graders, Dozers, & Scrapers Page Navigation
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TM 5-6675-348-13&P

CHAPTER 2

GRADIO DISPLAY SYSTEM

(D7F, D7G, D7H, AND D7R DOZERS

AND 613B AND 621B SCRAPERS)

Content

Para

Page

Gradio Display System General Information ................................................................... Section I

2-1

Scope........................................................................................................................................... 2-1

2-1

Equipment Characteristics, Capabilities, and Features.......................................................... 2-2

2-1

Location and Description of Major Components ...................................................................... 2-3

2-3

Equipment Data ........................................................................................................................ 2-4

2-5

Gradio Display System Preventive Maintenance Checks and Services (PMCS) .......... Section II

2-6

PMCS Procedures ...................................................................................................................... 2-5

2-6

Shortened Maintenance Instructions ....................................................................................... 2-6

2-7

Additional Maintenance Inspections ........................................................................................ 2-7

2-8

PMCS Column Entry Explanation ........................................................................................... 2-8

2-8

Gradio Display System Operator's PMCS Table ................................................................... 2-9

2-8

Gradio Display System Operation .................................................................................. Section III

2-10

Gradio Display System Installation of Components ............................................................. 2-10

2-10

Gradio Display System Setup................................................................................................. 2-11

2-11

Gradio Display System Operation ......................................................................................... 2-12

2-12

Gradio Display System Troubleshooting........................................................................ Section IV

2-13

Gradio Display System Troubleshooting Instructions .......................................................... 2-13

2-14

Gradio System Troubleshooting Instructions........................................................................ 2-14

2-16

Gradio Display System Maintenance .............................................................................. Section V

2-19

Gradio Display System Installation for Dozer ...................................................................... 2-15

2-19

Gradio Display System Installation for Scrapers.................................................................. 2-16

2-26

GRADIO DISPLAY SYSTEM GENERAL INFORMATION

SECTION I.

2-1.

SCOPE.

Chapter 2 is used for operation, maintenance, and installation of the Gradio Display System used on the

D7F, D7G, D7H, and D7R Dozers and the 613B and 621B Scrapers.

2-2.

EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES.

Characteristics. The RT2S Laser Receiver and DR2 Display are ideal for applications where the

RT2S Laser Receiver must be mounted many feet from the Operator (or at an inconvenient location),

such as on Dozers and Scrapers. The cableless feature means the DR2 Display can be mounted

optimally without routing the cables around or through complex or articulating machine joints.

The MM2E Manual Mast is used in machine control applications where changes in the benchmark

elevations are minimal and when manual adjustments of the RT2S Laser Receiver's height do not

present a safety risk.

2-1

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