16
WY02-1792E
Y-2
Y-2
Adjusting Pressure (Hydraulic Pressure)
2.3 Elevating
[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.
Item
(Mark)
Set pressure
Engine
speed
(min
-1
)
Check procedure
MPa
kgf/cm
2
psi
Boom
raising
(D)
27.5±0.5
280±5
3980±70 1900
(MAX.)
1. Deactivate the elevation slow stop circuit. (*2)
2. Turn the PTO switch ON.
3. Fully extend the elevating cylinder.
4. Move the elevating lever at its full stroke on the
raising side.
5. In this state, set the engine speed to 1900 min
-1
and check the pressure.
Boom
lowering
(E)
2.6
+0.5
0
27
+5
0
380
+70
0
700
(IDL.)
1. Deactivate the elevation slow stop circuit. (*3)
2. Turn the PTO switch ON.
3. Fully retract the elevating cylinder.
4. Move the elevating lever at its full stroke on the
lowering side.
5. In this state, check the pressure.
(*2): To deactivate the elevation slow stop circuit, disconnect the connector (CN124) (02) of the elevation
proportional control valve. (After adjusting, connect the connector (CN124).)
(*3): To deactivate the elevation slow stop circuit, disconnect the connector (CN125) (01) of the elevation
proportional control valve. (After adjusting, connect the connector (CN125).)
Содержание GR-300EX-3
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