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TM 5-2420-222-20-3
HYDRAULIC EARTH DRILL BORING HEAD
This task covers:
a. Draining (page 2-1870)
d.
Inspection/Replacement (page 2-1874)
b. Removal (page 2-1873)
e.
Installation (page 2-1874)
c. Cleaning (page 2-1874)
f.
Filling (page 2-1875)
INITIAL SETUP:
Tools
Materials/Parts
Container, 10-gallon
Fluid, hydraulic (LO 5-2420-222-12)
Handle, ratchet, 1/2-inch drive
Gasket, fill plug (two required)
Key, socket-head screw, 3/16-inch
Rags, wiping (item 21, Appendix C)
Key, socket-head screw, 5/16-inch
Solvent, drycleaning (item 28, Appendix C)
Lifting equipment, 500-pound
capacity
Personnel Required
Socket, 1/2-inch drive, 1 1/8-inch
Wrench, open-end, 9/16-inch Two
Wrench, open-end, 11/16-inch
Wrench, open-end, 3/4-inch
Equipment Condition
Wrench, open-end, 7/8-inch
Wrench, open-end, 1 1/8-inch
Hydraulic Earth Auger Attachment removed
Wrench, open-end, 1 1/2-inch
(TM 5-2420-222-10)
ACTION
LOCATION
ITEM
REMARKS
DRAINING
NOTE
Hydraulic earth drill boring head does not need to be drained to perform removal.
2-1870
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