Case CX130 - Page 246

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HYDRAULIC PRESSURE SETTINGS
CASE TRAINING CENTER
AUGUST 2000
4. Display on diagnostic screen
"CHK1"
P1 P1 pump pressure in MPa
P2 P2 pump pressure in MPa
N: Pressure regulation of the pump in MPa. The
pressure detector at this test point is located on
the pump (port X3 on CX130). It is used to
check the pump regulated pressure.
ENG: Engine speed in rpm.
I: Amperage in mA (Proportional valve).
WT: Engine water temperature in °C.
OT: Hydraulic oil temperature in °C.
To access this screen: Select work mode H or S using
the control (2).
CM00E001
Press simultaneously on the travel speed control (1)
and on the work mode selector control (2) as shown
above until the diagnostic screen CHK1 appears
(3 seconds).
5. Warming up the engine
1. Start the engine. The engine will have warmed up
in 10-15 minutes.
2. Run the engine until the message "Automatic pre-
heating" disappears from the display monitor.
6. Warming up the hydraulic fluid
1. Actuate the bucket and dipper controls in one
direction (against the cylinder stops) for
30 seconds.
2. Actuate the bucket and dipper controls in the other
direction (against the cylinder stops) for
30 seconds.
3. Repeat Steps 1 and 2 until the hydraulic fluid
temperature reached 45-55°C.
4. Actuate the boom, swing and travel controls in
both directions to warm up all the circuits to
45-55°C.
CHK MODE II H ENG 2000 rpm
1
P1 030.0 MPa I 0300 mA
P2 030.0 MPa WT 0080 °C
No. 03.00 MPa OT 0055 °C
CX130 CX210
Inspection orifice G6 a1
Pressure checked
Boom
Bucket
LH travel
Dipper
RH travel
Swing
CX130 CX210
Inspection orifice G7 a2
Pressure checked
Dipper
RH travel
Swing
Boom
Bucket
LH travel
1
2