(b) Hold the convex part
of
the housing
(l
1)
in
the
round
pliers
and
remove the
housing
(11)
from
the
housing
(1).
(c) The poppet (10) comes out along with the housing (11).
(d) Put the housing
(1
1)
vertical
and
remove
the
spring (9).
(e) Remove the
"O"-ring
from the housing
(l
1).
o
(3) Reassembly
For the procedure
of
cleaning
for
parts
and
replacement
of
"O"-ring, refer to
"l-2".
Visually check the seats of
the
housing
(l
1)
and
poppet (10) for
any
sign of
defect. Reassembly should be performed
in
the sequence opposite to disassembly.
ADJUSTMENT
OF
RELIEF
VALVE
11-2-6.
(1)
Main
Relief Valve
(a) Install a pressure
gauge
on
the outlet section gauge port (PTI /4).
(b) Loosen the lock
nut
of the
-relief
valve
and
turn
loose
the
adjuster by 1/4 or
1/2
of
a
tum.
(c) Start the engine. Actuate the tilt cylinders to their stroke end
and
read the
pressure gauge.
(d)
When
the reading is not as specified, obtain the specified
value
by turning the
adjuster.
(e) Loosen
the
lock
nut
and
recheck the pressure.
(f)
Remove
the
pressure gauge.
I
J
Main Relief
Pressure
:
175
kg/cm2
(2) PS
Relief
Valve
(a) Install a pressure gauge on the outlet section PS gauge port (PTI /4).
(b) Loosen
the
lock
nut
of the PS
relief
valve
and
turn
loose the adjuster by l /4
or
1/2
or a tum.
(c) Start the engine. Turn the steering
wheel
as
far
as possible
in
either direction
and read the pressure
gauge.
(d)
When
the reading is not as specified, obtain the specified value by turning the
adjuster.
(e) Loosen the lock
nut
and
recheck the pressure.
(f) Remove the pressure gauge.
PS
Relief
Pressure:
90
kg/cm2
(2.0
-
2.5
ton)
70
kg/cm'
(2.8
-
3.0 ton)
k
96
To Next Page