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(2) To refill, remove vent tube assembly and filler cap
from master hydraulic cylinder and add hydraulic fluid
to
a
level
of
to
3/8inch
below
top
of
cylinder.
In-
stall filler cap and vent tube assembly.
67. Air Hose Coupling
Note. The
removal
and
installation
of
the
air
hose
for
the
service
and
emergency
air
lines
are
the
same.
a. Removal. Unscrew connection nut (fig. 23) at rear of air
hose coupling installation and slide nut back on air line. Unscrew
nut
on
front
of
cross
member
until
pressure  has  been  re-
Unscrew  nut  on  nipple
lieved
on
internal
teeth
lockwasher.
connecting
air
line
to
elbow
in
coupling
connection.
Withdraw
air hose coupling, with connection and elbow attached, from
front
cross
member.
Remove
nut,
lockwasher,
and
tag
from
connection.
Separate elbow, coupling, and connection.
b. Installation.
(1) Apply pipe compound to threads at tapered ends of
connection.
Screw connection into air hose coupling.
Install  nut  and  internal
Screw  elbow  into  connection.
Position  tag  over
teeth lockwasher on connection.
opening
in
front
cross
member
and
insert
assembled
coupling
and
connection
through
tag
and
opening.
C a u t i o n : Make certain tags are on proper air lines.
The tag marked SERVICE must be on right side coup-
ling.
The
tag
marked
EMERGENCY
must
be
on
left
side
coupling.
(2) Position air line against nipple in elbow and tighten
nut.
Slide connection nut on line onto coupling con-
nection and tighten nut until it is snug against rear of
Then  tighten  nut  at  front  of
front  cross  member.
cross member until coupling is secure.
(3) Opening in each air hose coupling should be vertical
and  open  to  centrally  located  electrical  receptacle  in
cross member.
Cover  opening  with  dummy  coupling
( f i g s . 28
and
29)
unless
connection
to
air
supply
is
to be made at once.
Section
VIII.
LANDING  GEAR  AND
SPARE
WHEEL
AND
TIRE  CARRIER
68. Landing Gear Removal
a.
Removal
of
Operating
Handcrank
Assembly
and
Crank
Shaft Extension Bracket Assembly (fig. 46).
(1) Remove locknut and hex-head bolt which secure oper-
TAGO 1321B
104



 


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