Nilfisk-Advance Condor XL, Service Manual

Page: 127 / 233

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Problem Cause Correction
Fault code 34
displayed on the
LCD Hydraulic temperature fault that sets when
hydraulic oil temperature exceeds 220 F for
15 seconds.
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hydraulic oil cooler to ensure
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Fault code 39
displayed on the
LCD
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replaced.
Note: Only activates when oil temperature
is above 100 degrees F (this prevents false
signal upon cold engine start up).
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Accurate measurements are the key to troubleshooting a hydraulic system. Once you obtain accurate
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The pressure gauge should have a range of 0 to 3000 psi (see the
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section) and have a Parker
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the motor that is performing poorly. Refer to the
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that if a motor is running too slow the problem is in the pump.
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and system oil temperature. If any reading varies greater than 20 percent, there will be a noticeable loss of
performance and the problem should be corrected.
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Note:
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tables.
100 psi = 6.9 bar.
1. Insert the pressure gauge into the test port.
Note:
The Lower Test Port (TP 4) on the Scrub Lift Cylinder is easier to access if you lower the
scrub deck.
2.
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‡
The bypass pressure is the pressure reading with no motor or cylinder operating.
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The operational pressure is the pressure range in which the motor or cylinders will operate.
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A much lower than normal bypass pressure could indicate a gear pump problem.
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If the bypass pressure remains the same after turning the function on, there could be a problem in
the control valve or circuit.