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TM 5-2420-222-34
CHAPTER 16
PARTS PECULIAR MAINTENANCE
Paragraph
Page
Number
Paragraph Title
Number
16-1
Hydraulic Earth Drill Boring Head Motor Replacement..........................................
16-1
16-2
Hydraulic Earth Drill Boring Head Motor Repair ....................................................
16-6
16-3
Hydraulic Earth Drill Boring Head Repair...............................................................
16-11
16-4
Hydraulic Impactor Motor Assembly Replacement................................................
16-17
16-5
Hydraulic Impactor Repair .....................................................................................
16-19
16-1.
HYDRAULIC EARTH DRILL BORING HEAD MOTOR REPLACEMENT.
This Task Covers:
a.
Removal
b.
Installation
Initial Setup:
Equipment Conditions:
Materials/Parts:
•
Hydraulic earth drill boring head removed (see
•
Nonelectrical wire (Item 44, Appendix B)
TM 5-2420-222-20).
•
One cotter pin
•
Hydraulic earth drill boring head chain case drained
•
Two gaskets
(see LO 5-2420-222-12).
Tools/Test Equipment:
Personnel Required:
Two
•
General mechanic's tool kit
•
Field automotive shop set
16-1
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