IHI 9NX - Hydraulic System Pressure Settings

MAINTENANCE
9NX
HYDRAULIC SYSTEM PRESSURE SElTlNGS
1. SET PRESSURE Hyd. Oil Temp.: 50 to 60°C
2. GAUGE PORTS &
RELIEF VALVE LOCATIONS
P2 Gauge port
Relief Valves
Control Valve
Gauge
Ports
P1
P2
Install
Gauge
Adapter in
Att. Line
P2
Pl(LH)
P2(RH)
Main
Overload
Brake
MR2
Main
Bucket. Boom,
Travel (RH),
Boom swing,
Service
Arm, Swing,
Travel (LH),
Se~ice
Boom (Hoist)
Arm (In)
Swing
Travel
Relief
Valve
P2
/
Valve
Location
MR1
MR2
OR1
OR2
OR3
SW1, SW2
Swing Rel
Valve SW
SWING MOTOR
Maintenance Std.
MPa (kgf/an2)
16.2 2;; (165)
16.2
$1: (165:; )
18.6'8.5(190 +8 )
6.4*5(65 3 !
OR2
MRI
Main
Boom Lower
Relief
Overload V Valve
\
Note
Rated Engine RPM
Rated Engine RPM
Refer to Pressure
Measuring Procedure
Low Idle Engine RPM
Not Equipped
U OR3
Arm In
Overioad V
Relief the main relief valves
I
OR1
Boom Hoist
Overload V