TM 9-2320-269-20-2
DERRICK LEG ELEVATION HYDRAULIC DRIVE LINES - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
REMOVAL - CONTINUED
8.
900 swivel
Selector valve-to-
a. Using 11/16-inch and 7/8-inch
adapter (1)
elevation cylinder
wrenches, unscrew and take off.
hose assembly (2)
b. Tag hose (2).
9.
900 swivel
Selector valve-to-
a. Using 11/16-inch and 7/8-inch
adapter (3)
elevation cylinder
wrenches, unscrew and take off.
hose assembly (4)
b. Tag hose (4).
10.
Derrick mast (5)
Two selector
With help from assistant,
and console (6)
valve-to-elevation
take out.
cylinder hose
11.
900 swivel
Derrick operator's
a. Using 9/16-inch and 7/8-inch
adapter (7)
valve-to-selector wrenches, unscrew and take off.
valve hose
b. Tag hose(8).
assembly (8)
]
12.
900 swivel
Derrick operator's
a. Using 9/16-inch and 7/8-inch
adapter (9)
valve-to-selector
wrenches, unscrew and take off.
valve hose
b. Tag hose (10).
assembly (10)
2-978