SECTION 6 | TROUBLESHOOTING FLOWCHARTS
SECTION 6 | TROUBLESHOOTING FLOWCHARTS
6.2 | DRIVE CIRCUIT
Flowchart-Pro Series-Drive
Troubleshooting Step 3: Drive
Troubleshooting Flowcharts--General Notes:
Inspect parts for visible damage as they are encountered.
After each step, check if problem has been indentified and/or resolved.
If so, make the recommended fix or see a referenced document.
If not, continue troubleshooting.
If a part has been identified as needing replacement, see the
Parts
Manual
To identify part number to order.
If any wiring or components have been altered from the original
manufacture, problems may not be identifiable.
WARNING
Any modification on this machine without
the express consent of the manufacturer
is prohibited.
WARNING
Failure to comply with safety precautions
may result in damage, injury, or death.
Refer to Maintenance Manual for
complete warnings
See also
Wiring Diagram
or
Schematic
Revision A
Does the machine
drive?
Are brakes released?
Is drive unit damaged?
Yes
No
Yes
Are all connections to
drive joystick and drive
control board secure?
No
Is there moisture or
corrosion in any
connections?
No
Yes
Yes
Contact Hy-brid Lifts for further
troubleshooting.
Consider brake damage, broken joystick
handle (drive enable), bad hour meter, loose
connections in lower and upper control, and
control board failure.
Still no drive?
Driving slowly?
Are batteries fully charged?
Drives slow when
lowered?
Drives fast when elevated?
Does not drive when
elevated?
Do pothole guards and
lock deploy properly?
Yes
Contact Hy-Brid Lifts for further troubleshooting.
Consider board failure or loose wiring.
Contact CEI for further troubleshooting.
Consider board failure, pothole interlock limit switch
failure
Is angle sensor damaged?
Yes
Contact Hy-Brid Lifts for further troubleshooting.
Consider board failure or incorrect wiring.
Yes
Drives intermittently?
Contact Hy-Brid Lifts for further troubleshooting.
Consider board failure
Check
connections at
both pump and
board. See wiring
diagrams.
Yes, but not properly
Is machine tilted?
No
Is there a trouble
code flashing?
Yes
Is a drive motor
damaged?
Refer to
Diagnostic
Light Codes in
Maintenance
Manual
Replace
drive unit
Reconnect
Allow to dry for 24 hours and
try again. Board probably will
need replacement. Apply
dielectric grease to connectors
at main wire harness.
Charge
batteries
No
Replace
drive motor.
Check for proper
connection to sensor.
Replace sensor.
Clean any debris
from pothole arm
mechanism.
Yes
Check wiring connections in drive components.
See Electrical Schematic
Some models have
tilt interlock installed.
Lower platform and move to
a flat surface.
Cycle power off
and on to re-engage.
MAINTENANCE & TROUBLESHOOTING
PS-1030 | PS-1430
SUPO-742
REV A
MAINTENANCE & TROUBLESHOOTING
PS-1030 | PS-1430
SUPO-742
REV A
30
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