Service manual

CHAPTER 6 8454
6-62
D569-W02 May-2003
c. To Assemble the Control
1. Insert the dust seal into the flange section of the
housing.
b .To Disassembling the Relief Valve
1. Loosen retainer screw (1) on plug (29) area of hous-
ing (20) and take out retainer pin (2) and ball (3).
2. Loosen relief adjusting plug (29) with the flange
face of housing (20) upward and remove O-ring (28).
3. Remove damper collar (8) and spring (5) out.
4. Take poppet (4) out of housing (20) using a pin set.
(1) Screw (26) Spring
(2) Retainer Pin (27) Damper Collar
(3) Ball (28) O-Ring
(25) Poppet (29) Adjusting Plug
CAUTION
CAUTION
• Previously measure the depth from the
flange faced and of the housing to the
relief adjusting plug (7) with binary cali-
pers to easily perform adjustment of
the pressure when reassembling.
• Install the flat surface of the dust room
downward.
569W687A
569W688A
(32) Dust Seal
2. With the flange face of the housing downward, in-
sert O-ring (30) onto the assembling groove to fix
with one bearingless (18), thrust needle bearing
(19) and the other bearingless (18).
569W689A
(18) Bearingless (30) O-ring
(19) Needle Bearing
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