5
-
23
(A) Diameter
A
TC2O525A
The hose unions used must comply
with ISO standards.
Dimension (A) must be between
20.48 and 20.56 mm (0.806 and
0.809 in.).
PT1/2 COUPLER SOCKET (IMPLE-
MENT)
CONNECTING AND DISCONNECTING
IMPLEMENT
CONNECTION
1. Make sure to stop the engine be-
fore connecting it.
2. Move the double acting valve le-
ver forward and backward for 4
to 5 times to release the pressure
in the hydraulic line of the tractor.
Otherwise, it is hard to connect the
couplers, and hydraulic uid can be
sprayed from the line and get in to
your eyes while connecting them.
3. Remove any foreign material
around the male and female cou-
plers. If foreign material enters the
hydraulic components, it can lead
to malfunction of the system.
4. Open the dust-proof cover of the
female coupler of the tractor and
insert the male coupler of the im-
plement. A clicking sound is heard
when the couplers are engaged.
5. Pull the hydraulic hose of the im-
plement to check that the couplers
are properly connected.
6. Start the engine and check the op-
erating status and leakage.
IMPORTANT
• Put the detent valve operating
lever into the neutral position
when the hydraulic implement
is not in use. If the detent valve
is kept in the operating position
for an extended period of time,
the relief valve is kept open and
the temperature of the hydraulic
uid rises, leading to damage of
various hydraulic parts, such as
the oil seals and O-rings.
• When the detent valve is in op-
eration, unnecessary load is ap-
plied to the engine. Therefore,
the engine power decreases
signicantly, and noise and vi-
bration increases by the open-
ing of the relief valve.
• It is hard to start the engine while
the detent valve is in operation.
This is especially true in winter
and exhaust gas increases even
after the engine is started.
OM_TD220(DK4220,4520,4720,5020,5320,5520,6020)-EN(USA)_05.indd 23OM_TD220(DK4220,4520,4720,5020,5320,5520,6020)-EN(USA)_05.indd 23 2023-09-22 오전 11:35:572023-09-22 오전 11:35:57
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