Cessna T188C - Installation

MODEL 188
& T188 SERIES
SERVICE
MANUAL
NOTE
Figure 19-21.
Hydraullcally-Operated
Dispersal Systems
(Sheet 14 of 14)
condition
and
cleanliness.
c. Inspect all parts for scratches, scores, chips, NOTE
cracks
and
indication
of excessive
wear.
d. Inspect
teflon seats (30
and 32, figure
19-23).
Note position
of slot
n ball (31) to
assure
positioning
of shaft (48).
Do not overtorque
Replace
if
worn
or
damaged.
fittirg
(27).
This
would
bind
ball
(31),
19-45. REASSEMBLY.
(See figure 19-23.)
preventing
operation.
NOTE
c.
Assemble
and install
two-way valve
assembly
(43 thru 49), and assure that lug of shaft (48) fits
Use all
new packings, back-up
rings and
in slot of ball
(31).
O-rings for reassembly. Before assembly, d. Install filter (33) and remaining packings and
lubricate all rings
with Petrolatum orDEX-
fittings in
reservoir body (53).
RON-type automatic
transmission
fluid.
e Install packing (54).
Lubricate all
threads with Petrolatum.
if
.
Install reservoir
tube (64),
spacers (60)
and
return
tubes
(55)
and
(62), and
suctiom
tube
bafe
(58).
(57)
were removed,
they should
be
primed
g. Assemble
and install
filter
bypass
assembly
with Grade T Primer and
sealed with hy-
( thru 6) on bypass
valve fitting (7).
with
Grade
T
Primer
and sealed with
hy-
draulic
sealant (Catalog
#69, Loctite
Cor-
Install spacers
(61) on
studs (63).
poration)
upon
installation.
poration) upon
installation.
1.
Install packing
(65) on end cap
(66); Install
end
cap on studs (63).
a.
Install relief
valve
assembly
(26).
j. Install
packings
(67),
washers (68)
and nuts
(69).
k. Torque nuts (69) to 190 to 210 lb-in.
NOTE l. Install packing (72), nut (71) and elbow (70).
The relief
valve is preset
and should not
19-46. INSTALLATION.
(See figure 19-21.)
be adjusted.
a. Install reservoir and attach to tubular structure
b. Install seat (32), if
removed, ball (31), seat
(30), with bolts and washers
or clamp.
O-ring (29), nut (28) and
fitting (27).
b. Beginning with aircraft
serial 18803522, install
shroud
and
inlet
hoses.
c. Attach ON-OFF valve control at the valve and at
19-49