MAINTENANCE SUPPORT DATA
The Auger is designed for use in boring holes in the earth for construction purposes such as fence, power lines, anchor
a. General. The Texoma Incorporated Earth Auger Model 270-9, in Figures 1-1 and 2-2, is a self-contained, skid
mounted, earth boring assembly, driven by a diesel engine, Detroit Model 3-53. All operations of the boring assembly
are controlled by a hydraulic system. The Auger is capable of boring holes 9 to 24 inches in diameter and to a depth of 9
feet. The boring assembly can be operated from vertical downward to 60 away from the truck, from vertical to 23 to
the right and from vertical to 30 to left of truck, or 10 toward the truck.
b. Engine. The engine is a Detroit Diesel Model 3-53 line, 3 cylinder, pressure lubricated, diesel engine.
c. Transmission. The transmission is a Funk Manufacturing Company, Model 12B704N with four speeds forwarded
and four reverse speeds.
d. Auger Assembly. The Auger assembly consists of the Auger, Kelly Bar, Final Drive assembly, and Right Angle
Drive assembly. Operation of the Auger assembly is controlled by the shuttle control and the hand or foot operated
throttle control. The shuttle is engage and disengage the drive assembly.
e. Warning/Safety Devices. The hydraulic system incorporates load lock valves on both the elevating and leveling
cylinders. These valves prevent the cylinders from retracting in event of hydraulic system pressure loss.
f. Electrical System. The Auger has a 12 volt electrical starting system.
g. Instruments. The Auger is equipped with waterproof gauges and switches. The following instruments are on the
(1) Engine Water Temperature Gage
(4) Transmission Oil Pressure Gage 140 PSI
(5) Transmission Oil Temperature Gage 220o F
(6) Engine Oil Temperature Gage 0-235F
* U S GOVERNMENT PRINTING OFFICE 1991 - 543-025 40035
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