TM 9-2320-269-20-2
DERRICK LEG EXTENSION HYDRAULIC DRIVE LINES - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
INSTALLATION - CONTINUED
45 swivel
19.
Derrick operator's
a. Take off tag.
adapter (9)
valve-to-extension
b. Screw on, and tighten using
cylinder hose
9/16-inch and 11/16-inch wrenches.
assembly (4)
45 swivel
20.
Derrick operator's
a. Take off tag.
adapter (10)
valve-to-extension
b. Screw on, and tighten using
cylinder hose
9/16-inch and 11/16-inch wrenches.
assembly (3)
21.
Derrick mast (11)
Two valve-to-
With help from assistant, and using
and console (12)
extension cylinder
fish tape, put in position.
hose assemblies
(13) and (14)
90 swivel
22.
Valve-to-extension
a. Check tag for proper location, and
adapter (15)
cylinder hose
take off.
assembly (13)
b. Screw on, and tighten using 718-inch
and 11/16-inch wrenches.
90 swivel
23.
Valve-to-extension
a. Check tag for proper location, and
adapter (16)
cylinder hose
take off.
assembly (14)
b. Screw on, and tighten using 7/8-inch
and 11/16-inch wrenches.
TA229221
2-991
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