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TM 5-2420-222-20-3
BACKHOE CONTROL VALVE - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
REMOVAL - CONTINUED
4.
Special adapter (1)
Hose (2)
a.
Using 1 1/8-inch and 1 1/4-inch open-
end wrenches, unscrew and take out.
b.
Tag (page 2-137).
c.
Cap (page 2-137).
5.
Two union
Two special adapters
a.
Using 1 1/4-inch and 1 3/8-inch open-
adapters (3)
(1 and 4) with
end wrenches, unscrew and take out.
assembled parts
b.
Tag (page 2-137).
c.
Cap (page 2-137).
6.
Two union
Two hoses (6)
a.
Using 11/16-inch and 7/8-inch open-
adapters (5)
end wrenches, unscrew and take out.
b.
Tag (page 2-137).
c.
Cap (page 2-137).
7.
Valve assembly (7)
Three screws (9)
a.
Have assistant support valve
and valve box (8)
and lockwashers (10)
assembly (7).
b.
Using 3/4-inch, 1/2-inch drive socket
and ratchet handle, unscrew and take
out.
c.
Get rid of lockwashers (10).
8.
Valve box (8)
Valve assembly (7)
a.
Have assistant take off.
b.
Allow fluid to drain into drain pan.
c.
Get rid of drained fluid (page 2-137).
DISASSEMBLY
9.
Valve assembly (7)
Six straight
Using 1-inch open-end wrench, unscrew
adapters (11)
and take out.
with assembled
packings (12)
10.
Six straight
Six packings (12)
a.
Using pocket knife, take off.
adapters (11)
b.
Get rid of.
11.
Valve assembly (7)
Two union
Using 1 1/4-inch open-end wrench,
adapters (3)
unscrew and take out.
with assembled
packings (13)
12.
Two union
Two packings (13)
a.
Using pocket knife, take off.
adapters (3)
b.
Get rid of.
2-1262
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