SECTION 3 - CHASSIS & TURNTABLE
3-154
– JLG Lift –
3121142
DTC 524- Oil Pressure Low
• Engine Oil Pressure
• Check Condition- Key on, Engine on
• Fault Condition- Engine oil pressure lower than expected
while engine has been running for a minimum amount of
time while engine speed is above some limit as defined in
the diagnostic calibration
• Corrective Action(s)- Illuminate MIL and/or sound audible
warning or illuminate secondary warning lamp, generally
configured to derate the engine and trigger an engine
shutdown
• Non-emissions related fault
The ECM can be configured to monitor oil pressure through a
proportional transducer or through a switch. Oil pressure
monitoring is important to prevent engine damage due to low
oil pressure resulting in higher friction and lack of lubrication.
In addition, high oil pressure can be undesirable because it
can cause oil to leak past seals and rings, can be a result of a
restriction in the oil flow path, or can be a sign of a malfunc-
tioning oiling system.
For systems that use a transducer, this fault sets if the engine
oil pressure is less than x psia and engine speed is greater than
y RPM after the engine has been running for z seconds as
defined in the diagnostic calibration. For systems that use a
switch this fault can be configured two different ways. It may
use a normally closed switch or a normally open switch. If the
switch is normally open, the fault will set if the circuit becomes
grounded. If the switch is normally closed, the fault will set if
the circuit becomes open. Go to the Faults page in EDIS to
determine how the input is configured. ("Open=OK" is nor-
mally open and "Ground=OK" is normally closed). The engine
will should be configured to derate or force idle and/or shut
down in the event of this fault to help prevent possible dam-
age.
BLUE
BLACK/GREEN
19
1
2
Summary of Contents for 1200SJP
Page 1: ...Service and Maintenance Manual Models 1200SJP 1350SJP P N 3121142 November 8 2016 AS NZS...
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Page 58: ...SECTION 3 CHASSIS TURNTABLE 3 12 JLG Lift 3121142 Figure 3 11 Axle Loctite Application...
Page 64: ...SECTION 3 CHASSIS TURNTABLE 3 18 JLG Lift 3121142 Figure 3 13 Drive Hub Sheet 1 of 2...
Page 173: ...SECTION 3 CHASSIS TURNTABLE 3121142 JLG Lift 3 127 Figure 3 75 EMR2 Fault Codes Sheet 1 of 5...
Page 174: ...SECTION 3 CHASSIS TURNTABLE 3 128 JLG Lift 3121142 Figure 3 76 EMR2 Fault Codes Sheet 2 of 5...
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Page 248: ...SECTION 4 BOOM PLATFORM 4 14 JLG Lift 3121142 Figure 4 7 Boom Assembly Sheet 7 of 7...
Page 305: ...SECTION 4 BOOM PLATFORM 3121142 JLG Lift 4 71 Figure 4 31 Outer Mid Boom Extend Retract Cables...
Page 306: ...SECTION 4 BOOM PLATFORM 4 72 JLG Lift 3121142 Figure 4 32 Fly Boom Extend Retract Cables...
Page 323: ...SECTION 4 BOOM PLATFORM 3121142 JLG Lift 4 89 Figure 4 37 Rotator Counterbalance Valve...
Page 352: ...SECTION 5 HYDRAULICS 5 28 JLG Lift 3121142 Figure 5 28 Steer Pressure Adjustments...
Page 379: ...SECTION 6 JLG CONTROL SYSTEM 3121142 JLG Lift 6 3 Figure 6 2 Control System Block Diagram...
Page 388: ...SECTION 6 JLG CONTROL SYSTEM 6 12 JLG Lift 3121142 Figure 6 10 Control Module Location...
Page 457: ...SECTION 6 JLG CONTROL SYSTEM 3121142 JLG Lift 6 81 Figure 6 24 Fault Code Light Location...
Page 490: ...SECTION 6 JLG CONTROL SYSTEM 6 114 JLG Lift 3121142 Figure 6 31 CANbus Circuit...
Page 508: ...SECTION 6 JLG CONTROL SYSTEM 6 132 JLG Lift 3121142 Figure 6 32 Moment Chart...
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