22-13
22-13
TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
point toward the sides of the valve block (note
point toward the sides of the valve block (note
position of valve stem in Illustration 22-19).
position of valve stem in Illustration 22-19).
2.
2.
Ins
Ins
tal
tal
l the lo
l the lo
ck pl
ck pl
ate o
ate o
ver t
ver t
he val
he val
ve st
ve st
em.
em.
Ensure that the notch of the lock plate is secu-
Ensure that the notch of the lock plate is secu-
red by the stud on the valve block (see Illustra-
red by the stud on the valve block (see Illustra-
tion 22-19).
tion 22-19).
3.
3.
Ins
Ins
tal
tal
l c
l c
oll
oll
ar o
ar o
ver
ver
val
val
ve
ve
ste
ste
m.
m.
4.
4.
Ins
Ins
tal
tal
l s
l s
tem
tem
scr
scr
ew a
ew a
nd t
nd t
igh
igh
ten
ten
.
.
FULLY
FULLY
OPEN
OPEN
1/4 turn
1/4 turn
FULLY CLOSED
FULLY CLOSED
STUD
STUD
Illustration
Illustration
22-19.
22-19.
Closing and
Closing and
Opening The
Opening The
Lowering
Lowering
Valv
Valv
e
e
Setting Hydraulic Pressures
Setting Hydraulic Pressures
Hydraulic pressures must be set at recommended
Hydraulic pressures must be set at recommended
engine speed.
engine speed.
The hydraulic
The hydraulic
fluid should
fluid should
be at
be at
operating temperature before adjusting hydraulic
operating temperature before adjusting hydraulic
pressures.
pressures.
Death or serious injury could
Death or serious injury could
result from
result from
a runaway truck.
a runaway truck.
Park the truck
Park the truck
on
on
a hard, level surface, apply the parking brake
a hard, level surface, apply the parking brake
and block the wheels in both directions to
and block the wheels in both directions to
prevent movement of the truck.
prevent movement of the truck.
Under no circumstances,
Under no circumstances,
open port.
open port.
This could
This could
cause severe bodi
cause severe bodi
ly
ly
injury.
injury.
Prior to setting any hydraulic pressures, these pro-
Prior to setting any hydraulic pressures, these pro-
cedures must be performed first:
cedures must be performed first:
1.
1.
Par
Par
k th
k th
e tru
e tru
ck on
ck on
a har
a har
d, le
d, le
vel s
vel s
urf
urf
ace
ace
.
.
2.
2.
Ap
Ap
pl
pl
y th
y th
e pa
e pa
rk
rk
in
in
g br
g br
ak
ak
e.
e.
3.
3.
Blo
Blo
ck th
ck th
e whee
e whee
ls in bo
ls in bo
th di
th di
rec
rec
tio
tio
n to pre
n to pre
ven
ven
t
t
movement of the truck.
movement of the truck.
Steering
Steering
(Illustration 22-20)
(Illustration 22-20)
1.
1.
Ins
Ins
tal
tal
l an ope
l an ope
rat
rat
e pres
e pres
sur
sur
e gaug
e gaug
e int
e int
o the
o the
pressure check at port (LSM).
pressure check at port (LSM).
2.
2.
Ens
Ens
ure t
ure t
he tir
he tir
e piv
e piv
ot are
ot are
a and en
a and en
gin
gin
e com
e com
par
par
t
t
is clear.
is clear.
3.
3.
Sta
Sta
rt t
rt t
he t
he t
ruc
ruc
k.
k.
Ste
Ste
er a
er a
nd d
nd d
ead
ead
-he
-he
ad t
ad t
he s
he s
tee
tee
r
r
cylinder.
cylinder.
4.
4.
Obs
Obs
erv
erv
e t
e t
he
he
pre
pre
ssu
ssu
re
re
gaug
gaug
e.
e.
The
The
gau
gau
ge
ge
ind
ind
i-
i-
cations should be as specified in the
cations should be as specified in the
HYDRAULIC PRESSURE SETTINGS
HYDRAULIC PRESSURE SETTINGS
chart in
chart in
the
the
Appendices
Appendices
.
.
If not
If not
, perform
, perform
the remaining
the remaining
procedure to set the steer pressure.
procedure to set the steer pressure.
5.
5.
Loo
Loo
sen
sen
the
the
jam
jam
nut
nut
on R
on R
V2.
V2.
T
T
urn
urn
the
the
set
set
screw clockwise to increase the pressure or
screw clockwise to increase the pressure or
counterclockwise to decrease the pressure.
counterclockwise to decrease the pressure.
6.
6.
Whe
Whe
n th
n th
e sp
e sp
eci
eci
fie
fie
d pr
d pr
ess
ess
ure
ure
has
has
bee
bee
n
n
achieved, tighten the jam nut.
achieved, tighten the jam nut.
Lift and Tilt Back (RV1)
Lift and Tilt Back (RV1)
(Illustration 22-20)
(Illustration 22-20)
1.
1.
Ins
Ins
tal
tal
l an ope
l an ope
rat
rat
e pres
e pres
sur
sur
e gaug
e gaug
e int
e int
o the
o the
pressure check at port (HPC1).
pressure check at port (HPC1).
2.
2.
Start
Start
the
the
truck
truck
.
.
Ti
Ti
lt
lt
back
back
and
and
dead-h
dead-h
ead
ead
the
the
tilt
tilt
cylinders.
cylinders.
3.
3.
Obs
Obs
erv
erv
e t
e t
he
he
pre
pre
ssu
ssu
re
re
gaug
gaug
e.
e.
The
The
gau
gau
ge
ge
ind
ind
i-
i-
cations should be as specified in the
cations should be as specified in the
HYDRAULIC PRESSURE SETTINGS
HYDRAULIC PRESSURE SETTINGS
chart in
chart in
the
the
Appendices
Appendices
.
.
If not
If not
, perform
, perform
the remaining
the remaining
procedures to set the pressure of RV1.
procedures to set the pressure of RV1.
4.
4.
T
T
urn
urn
the
the
eng
eng
ine
ine
of
of
f.
f.
Loos
Loos
en t
en t
he j
he j
am n
am n
ut
ut
on
on
the main relief valve located in the inlet section
the main relief valve located in the inlet section
of the acces
of the acces
sory valve (if
sory valve (if
equipped).
equipped).
Turn the
Turn the
set screw 1/4 quarter turn clockwise to
set screw 1/4 quarter turn clockwise to
increase the pressure setting of this relief.
increase the pressure setting of this relief.
NOTE:
NOTE:
The main relief in the inlet section of the
The main relief in the inlet section of the
accessory valve is in parallel with RV1.
accessory valve is in parallel with RV1.
5.
5.
Loos
Loos
en th
en th
e jam n
e jam n
ut on R
ut on R
V1 (r
V1 (r
eli
eli
ef va
ef va
lve
lve
,
,
located in the manifold).
located in the manifold).
2.
2.
Start
Start
the
the
truck
truck
.
.
Side
Side
shift
shift
in
in
either
either
direct
direct
ion
ion
and dead-head the cylinder.
and dead-head the cylinder.
3.
3.
Obs
Obs
erv
erv
e t
e t
he
he
pre
pre
ssu
ssu
re
re
gau
gau
ge.
ge.
The
The
gau
gau
ge
ge
indi
indi
-
-
cations should be as specified in the
cations should be as specified in the
HYDRAULIC PRESSURE SETTINGS
HYDRAULIC PRESSURE SETTINGS
chart in
chart in
the
the
Appendices
Appendices
.
.
If not,
If not,
perform the
perform the
remaining
remaining
procedures to set the pressure of the accesso-
procedures to set the pressure of the accesso-
ry main relief.
ry main relief.
4.
4.
T
T
urn t
urn t
he e
he e
ngin
ngin
e of
e of
f.
f.
Loo
Loo
sen
sen
the
the
jam
jam
nut
nut
on
on
the port relief located on the A port side of the
the port relief located on the A port side of the
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Summary of Contents for TX180S
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