|
| |
TM 5-2420-222-34
CHAPTER 15
CRANES, SHOVELS, AND EARTHMOVING EQUIPMENT
COMPONENTS MAINTENANCE
Section I. BACKHOE ASSEMBLY MAINTENANCE
Paragraph
Page
Number
Paragraph Title
Number
15-1
Backhoe Dipperstick Maintenance ...................................................................................
15-1
15-2
Backhoe Boom Maintenance ...........................................................................................
15-8
15-3
Backhoe Swing Frame Maintenance................................................................................
15-11
15-4
Backhoe Main Frame Maintenance .................................................................................
15-17
15-1.
BACKHOE DIPPERSTICK MAINTENANCE.
This Task Covers:
a.
Removal
d.
Repair
b.
Disassembly
e.
Assembly
c.
Cleaning and Inspection
f.
Installation
Initial Setup:
Tools/Test Equipment:
Materials/Parts:
•
General mechanic's tool kit
•
Rags (Item 28, Appendix B)
•
Field automotive shop set
•
Dry cleaning solvent (Item 31, Appendix B)
•
One grease fitting
References:
•
Two cotter pins (serial numbers 235786-235999)
•
TM 5-2420-222-10
General Safety Instructions:
•
TM 5-2420-222-10
•
Dry cleaning solvent is flammable and must not be
Personnel Required: Two
used near open flame. Use only In a well-ventilated
area.
a.
REMOVAL
1.
Extend and lower backhoe boom, dipperstick, and bucket parallel to ground and support on wood blocks (see TM
5-2420-222-10).
2.
Shut down engine assembly (see TM 5-2420-222-10).
3.
Remove manifold block-to-jaw cylinder oil hose oil line (see TM 5-2420-222-20).
4.
Remove backhoe control valve-to-female quick coupler oil lines (see TM 5-2420-222-20).
5.
Remove hydraulic impactor flow regulator-to-nipple quick coupler oil lines (see TM 5-2420-222-20).
15-1
|
