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Chapter 1
Introduction to the Motorized Grader
1. Motor graders taught at the motor grader operator’s course are:
1) Caterpillar, Model 130G
2) Champion, 700 Series
3) John Deere, 670 Series
NOTE: All graders are similar with minor differences, so no matter what type, the principles of operation and
basic controls will vary little.
2. Characteristics
a. Diesel engine driven (DED)
b. Rubber tired
c.
Articulated frame
d. Tandem chain driven
3. Capabilities
a. Graders are ideal for finishing grade on construction projects.
b. Utilized for precise final shaping. When doing precise and final grading, use lowest gear possible.
c.
Perform light stripping.
d. Used to level minor ground irregularities.
e. Perform road and runway maintenance.
f.
Mix and spread materials.
g. Light scarifying.
h. Utilized to slope banks. For slopes greater then 3:1, you must use the high bank slope position.
i.
Will cut V-ditches and flat bottom ditches up to three feet deep.
j.
Snow removal
NOTES
1-1