TM 9-2330-390-14&P
5-7.
HYDRAULIC LIFT CYLINDER REPAIR (M1022A1 WITHOUT SIDE LIFT KIT).
This Task Covers:
a.
Disassembly
C.
Assembly
b.
Cleaning and Inspection
Initial Setup:
Equipment Conditions:
l
Hydraulic lift cylinder removed (see para-
graph 4-110).
Tools/Test Equipment:
l
General mechanic’s tool kit (item 30, Appendix G)
l
Compressor unit (Item 4, Appendix G)
l
Machinist’s vise (Item 36, Appendix G)
l
Adjustable wrench (Item 37, Appendix G)
l
Pipe strap wrench (Item 40, Appendix G)
Personnel Required: Two
Materials/Parts:
l
Hydraulic fluid (Item 15, Appendix F)
l
Rags (Item 25, Appendix F)
l
Dry cleaning solvent (Item 27, Appendix F)
l
One locknut
l
One seal kit
General Safety instructions:
l
Dry cleaning solvent is flammable and must not be
used near an open flame. Use only in a well-venti-
lated area.
l
Compressed air used for cleaning purposes should
never exceed 30 psi (207 kPa).
Maintain a clean work area when disassembling and assembling hydraulic lift cylinder.
Contamination from a dirty work area may cause damage to hydraulic components.
NOTE
l
A suitable container should be used to catch any draining hydraulic fluid. Ensure that
spills are properly cleaned.
l
As components are removed, they should be set aside and arranged in disassembly
order to aid during assembly.
1.
Drain all hydraulic fluid from lift cylinder.
2.
Place barrel assembly (4) in vise.
3.
Rotate head (6) counterclockwise. Remove lockwire (5), preformed packing (11), and head from barrel
assembly (4). Slide head back on rod assembly (7). Discard preformed packing.
4.
Remove rod assembly (7) with assembled components from barrel assembly (4).
5.
Remove barrel assembly (4) from vise.
5-20
