Tadano GR-700N, Service Manual

Page: 33 / 200

Y-2 Y-2
Adjusting Pressure (Hydraulic Pressure)
20
WY02-1720E
2.6 Remote control pilot pressure
[NOTICE]
Oil temperature: 50 ± 5°C (113 - 131°F) (hydraulic oil: TADANO Hydraulic Oil LL)
Item
(Mark)
Set pressure
Engine
speed
(min
-1
)
Check procedure
MPa kgf/cm
2
psi
Low
pressure
(S)
2.9 or
over
30 or
over
420 or
over
700
(IDL.)
1. Connect a pressure gauge to the pressure check
port (S).
2. Turn the PTO switch ON.
3. Set the air conditioner switch to OFF.
4. In this state, check the pressure by the pressure
gauge.
(Note): Adjustment is not possible.
If the pressure is out of the set pressure
range, replace the sequence valve.
High
pressure
(R)
3.9 or
less
40 or
less
560 or
less
700
(IDL.)
1. Connect a pressure gauge to the pressure check
port (R) of sequence valve.
2. Turn the PTO switch ON.
3. Set the side up jib to the stowing operation state.
4. In this state, check the pressure by the pressure
gauge.
View A
Pressure check port (R) (S) (G1/4)
Sequence valve
Low pressure (S) High pressure (R)
Sequence valve
Slewing table (left side)