Tadano GR-300EX-3, Service Manual

Page: 34 / 157

21
WY02-1792E
Y-2 Y-2
Adjusting Pressure (Hydraulic Pressure)
2.8 Remote control pilot pressure
[NOTICE]
Oil temperature: 50±5°C (113 - 131°F) (Hydraulic oil: TADANO Hydraulic Oil LL)
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
Pilot
pressure
*1
(K)
2.9 or over 30 or over 420 or over 700
(IDL.)
1. Connect a pressure gauge to the pressure
check port (K).
2. Turn the PTO switch ON.
3. Make sure that constant pressure is being
produced while engine is running.
4. And check the pressure by the pressure
gauge.
(Note): Adjustment is not possible.
If the pressure is out of the set
pressure range, replace the valve.
*2
(L)
3.9 or less 40 or less 560 or less 1900
(MAX.)
1. Connect a pressure gauge to the pressure
check port (L).
2. Turn the PTO switch ON.
3. In this state, set the engine speed to
1900 min
-1
and check the pressure by the
pressure gauge.
*1: Sequence valve (for actuator)
*2: Reducing valve (for pilot pressure and slewing brake release)