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TM 5-2420-222-20-3
HYDRAULIC EARTH DRILL HOSES AND FITTINGS - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
DISASSEMBLY
10.
Hose (1)
Quick coupler (2)
Using 3/4-inch and 9/16-inch open-end
wrenches, unscrew and take out.
11.
Two adapters
Male quick coupler
a.
Tag (page 2-137).
(3 and 4)
(5) and female quick
b.
Using 1 1/8-inch and 1 1/2-inch open-
coupler (6)
end wrenches, unscrew and take off.
12.
Two hoses
Two adapters
Using 1 1/8-inch and 7/8-inch open-end
(7 and 8)
(3 and 4)
wrenches, unscrew and take off.
CLEANING
NOTE
For more information on how to clean parts, go to General Maintenance
Instructions (page 2-137).
13.
All hoses
a.
Using clean rags dampened in solution
of detergent and water, wipe clean.
b.
Using clean rags dampened with clean
water, rinse.
c.
Using clean, dry rags, wipe dry.
WARNING
Drycleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and
gloves and use only in a well ventilated area. Avoid contact with skin, eyes, and
clothes and don’t breathe vapors. Do not use near open flame or excessive heat.
The flashpoint is 100°F to 138°F (38° to 59°C). If you become dizzy while using
cleaning solvent, get fresh air immediately and get medical aid. If contact with
eyes is made, wash your eyes with water and get medical aid immediately.
14.
All metal parts
a.
Clean in drycleaning solvent.
b.
Using clean, dry rags, wipe dry.
INSPECTION/REPLACEMENT
NOTE
For more information on how to inspect parts, go to General Maintenance
Instructions (page 2-1371).
Replace defective parts as needed.
2-1858
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