TM
55-1730-229-34
AG
320A0-MME-000
TO
35C2-3-473-2
TM
1730-34/1
b. I n s p e c t . ( S e e f i g u r e 8 - 1 1 . )
(4) Replaoe pilot solenoid valve
( 1 1 ) as follows:
(1) Inspect coupling ends of
fittings
(1,
3,
15,
17
and
22)
for
( a ) Remove three bolts (13, figure
s c r a t c h e s or gouges.
R e p l a c e if dam-
aged.
( b ) Unscrew solenoid assembly (1,
(2) Inspect coupling end of el-
f i g u r e 8-10A) out of t h e valve body and
bows (6, 21) and check valve (24) for
replace the gasket (2).
scractches or gouges.
Replace if dam-
aged.
(c) Disengage pin (3) and spring (4)
from the inner housing.
( 3 ) Inspect sensors (9 through 12)
for broken wires.
Replace sensor if
( d ) Remove housing (5) from the
damaged.
valve inner port.
(4) Inspect tube assembly (19).
(e) Use a proper hydraulic set tool
Replace If damaged.
and carefully remove retainer (6), screen (7),
balls (8) and pintle (9).
(See
c. Repair.
( f ) Remove and discard rings (10
(1) Replace fittings (1, 3, 15, 17
and 11).
a n d 22) as follows:
(g) Inspect items removed for clog-
(a) Remove fittings with pack-
ged screen and clogged ports, Clean screen;
ing. Discard packing.
replace damaged items.
(b) Install new fitting.,
with
(h) Install new rings (10 and 11) on
n e w packing (2, 4, 16, 18 and 23).
the housing and install pintle (9), balls (8),
screen (7) and retainer (6).
( 2 ) Match mark elbow (6) to mani-
f o l d ( 1 4 ) . Replace elbow (6) by loosen-
(i) Install housing (5) into inner
ing nut (7), and removing elbow with
port.
Discard packing.
Install
packing (8).
n e w elbow (6) with new packing (8), and
(j) Engage spring (4) and pin (3).
position elbow coupling end to match
mark.
(k) Install new gasket (2) on the
solenoid assembly (1) and screw solenoid onto
the valve (11, figure 8-10).
(3) Replace check valve (24) by
r e m o v i n g check valve with packing (25).
D i s c a r d packing.
Install new check
( l ) After installing new packings
v a l v e (24) with new packing (25).
(12 and 13, figure 8-10A), install the assembly
onto the manifold (19, figure 8-10); secure with
(4) Replace sensors (9, 10, 11,
bolts (13).
a n d 12) by removing sensor with packing
Discard packing.
Install new
(13).
d. I n s t a l l . Test manifold as de-
sensor and new packing (13).
scribed In paragraph 8-21 and install
manifold by performing steps in para-
( 5 ) Replace elbow (21) or tube as-
s e m b l y (19) by loosening coupling nuts
Install new seal (27) on end of
(20).
8-12.
RETURN MANIFOLD ASSEMBLY.
Install new elbow (21)
tube assembly.
o n tube assembly (19). Tighten coupling
a. Remove. Remove return manifold
nuts (20) with between 1,200 to 1,400
a s s e m b l y from module by performing all
i n c h - p o u n d s of torque.
s t e p s of paragraph 8-16.
Change 1
8-20
