5-20 DK451/501/551
OPERATION OF DOUBLE ACTING LEVER
When the relief valve begins to operate,
with the hydraulic cylinder lifted by the
lever, let go the lever to be in the neu-
tral position. If the relief valve is keep-
ing on operating, it leads to performance
deterioration of related parts due to over-
heating of oil.
A12O525A
(1) Lever
1,2 Remote control valve lever
Pressure Returning
Out In
OutIn
Lever 1 Push Pull
Port
A
B
Port A B
Coupler size
PT 1 / 2
Out In
OutIn
Lever 2
Push Pull
Port
C
D
Port C D
Connection and disconnection of
coupler
How to connect the coupler
1. Clean up female coupler and male cou-
pler of the tractor by removing dust
and foreign particles and wiping
moisture.
2. Open the dust cover of the female
coupler.
3. Insert the male coupler of the attach-
ment into the female coupler.
4. Pull back the male coupler of the at-
tachment lightly to confirm whether the
coupler is fully connected.
How to disconnect the coupler
1. First, lower the attachment to the
ground to remove the pressure within
the hydraulic hose.
2. Clean the coupler.
3. Disconnect the coupler after remov-
ing the pressure by moving the lever
4. Wash off oil and dust on the coupler,
and shut the dust cover.
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