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TM 5-2420-222-34
14-21.
BACKHOE BUCKET CYLINDER ASSEMBLY REPAIR.
This Task Covers:
a.
Disassembly
c.
Repair
b.
Cleaning and Inspection
d.
Assembly
Initial Setup:
Equipment Conditions:
Materials/Parts:
•
Backhoe bucket cylinder assembly removed (see
•
Abrasive cloth (Item 6, Appendix B)
TM 5-2420-222-20).
•
Hydraulic fluid (Item 15, Appendix B)
Tools/Test Equipment:
•
Rags (Item 28, Appendix B)
•
General mechanic's tool kit
•
Dry cleaning solvent (Item 31, Appendix B)
•
Field automotive shop set
•
One repair kit
General Safety Instructions:
•
One self-locking nut
•
Dry cleaning solvent is flammable and must not be
•
Six preformed packings (serial numbers 235786-
used near open flame. Use only in a well-ventilated
235999)
area.
Personnel Required: Two
•
Compressed air used for cleaning purposes should
never exceed 30 psi (207 kPa).
a.
DISASSEMBLY
NOTE
Steps 1 through 3 apply only to loader backhoes with serial numbers 235786-235999.
1.
Remove two nuts (3), compression sleeves (4), washers (5), and preformed packings (6) from adapters (7).
Discard preformed packings.
2.
Remove two adapters (7) and preformed packings (8) from actuating cylinder (10). Discard preformed packings.
TA701615
14-99
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