ARMY TM 5-5420-212-23
MARINE CORPS TM 08676A-23/3
3-10. HYDRAULIC JACK 20T
This task covers:
a.
Disassembly
b.
Cleaning
c.
Inspection
d.
Assembly
e.
Testing
INITIAL SETUP:
Tools Required
Torque wrench (17, Appendix B, Section III)
Tool Kit, General Mechanic's, Automotive (GMTK) (1, Appendix B, Section III)
Air compressor (4, Appendix B, Section III)
Shop Equipment, Supplemental No. 1 (3, Appendix B, Section III)
Shop Equipment, Common No. 1 (2, Appendix B, Section III)
Materials Required
Paper (80gm/m2) (22, Appendix C)
Lubricating oil, (2, Appendix C)
Cleaning solvent (3, Appendix C)
Clean cloths
Container, 3 1/2 pints (2 liter) capacity
25 ton test load
Replacement seals (TM 5-5420-212-23P)
Equipment Conditions
Jack removed from pallet and placed on raised, flat surface.
a.
Disassembly
WARNING
The relevant warning must be observed when using compressed air or cleaning solvent.
When using compressed air, wear safety goggles or glasses and ensure that air blast is not
directed toward another person.
Cleaning solvent is toxic and flammable. Use only in a well-ventilated area. Avoid prolonged
breathing of fumes. Keep solvent away from flames. Do not use in excessive amounts. Avoid
skin contact.
CAUTION
Special care must be taken when disassembling components to ensure freedom from grit, etc.
Valve seats and mating surfaces must be kept free from scratches and other damage.
NOTE
Replace all seals when jack is stripped and overhauled.
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