Tadano GT-600EX, Service Manual

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8
WY02-1501E
Y-2 Y-2
Adjusting Pressure (Hydraulic Pressure)
Y-2 Adjusting Pressure (Hydraulic Pressure)
1. Winch
[NOTICE]
 Oil temperature: 50 ± 5°C (113 - 131°F) (Hydraulic oil: TADANO Hydraulic Oil LL)
 Confirm set pressure on the crane information screen in the maintenance mode of AML.
 Shift the control lever or switch while the engine is idling, then increase engine speed.
Set pressure
Tem
（
Mark
）
MPa kgf/cm
2
psi
Engine
speed
(min
-1
)
Check procedure
Main winch
hoist-up
(A)
Aux. winch
hoist-up
(A)
27.5 ± 0.5 280 ± 5 3980 ± 70
1250
(MAX.)
1. Deactivate the slow stop circuit. (*1)
2. Keep the main winch brake applied. (*2)
3. Turn the PTO switch ON.
4. Move the main winch lever at its full stroke on the
hoist-up side while the elevating lever is moved at
its full stroke on the lowering side.
5. In this state, set the engine speed to 1250 min
-1
and check the pressure.
Aux. winch
hoist-down
(B)
8.8 ± 0.5 90 ± 5 1275 ± 70
600
(IDL.)
1. Deactivate the slow stop circuit. (*1)
2. Keep the aux. winch brake applied. (*2)
3. Turn the PTO switch ON.
4. Move the aux. winch lever at its full stroke on the
hoist-down side while the elevating lever is moved
at its full stroke on the lowering side.
5. In this state, check the pressure.
Main winch
hoist-down
(C)
8.8 ± 0.5 90 ± 5 1275 ± 70
600
(IDL.)
1. Deactivate the slow stop circuit. (*1)
2. Keep the main winch brake applied. (*2)
3. Turn the PTO switch ON.
4. Move the main winch lever at its full stroke on the
hoist-down side while the elevating lever is moved
at its full stroke on the lowering side.
5. In this state, check the pressure.
*1: To deactivate the slow stop circuit, disconnect the connector (CN125) of the elevation proportional solenoid
valve. (After adjusting, connect the connector (CN125).)
*2: The expression “Keep the winch brake applied” in this table means blocking a section of the brake release
pilot pressure piping of the corresponding winch motor in order to keep the brake applied.
After checking the pressure of the winch circuits, bleed the winch brake chamber.