Does machine elevate?
Does the
pump run?
Not At All
Ascent speed
slow or erratic?
Is the
emergency down
valve open?
Yes
No
Is battery fully
charged?
Are any structural
members bent?
Contact manufacturer to
arrange replacement.
Is there a restriction in
hydraulic hose?
Yes, but
not properly
Starts ascending,
then stops?
Is platform
overloaded?
Yes
Can you see
anything obstructing
the components?
Are power connections
to elevate circuit and
switches functioning
properly?
Remove
obstruction
Yes
No
Goes up, but
comes down
Replace or
repair identified
problem. See
Parts List
.
No
Ye
Close
emergency
down valve
Yes
Yes
Remove overload. Lower to
stowed position before
continuing use.
Yes
No
No
Yes
Yes
See also
Wiring Diagram WD-HB-P830CE Elevating
or
Schematic: WS-HB-P830CE-Elevating
And
Hydraulic Schematic HS-HB-P830CE
Or
Pictorial Hydraulic Circuit HSP-HB-P830CE
No
Check wiring
connections in elevate
components.
See Electrical
Schematic
WS-HB-P830CE
Or
Pictorial Schematic
WSP-HB-P830CE
And instruction
Circuit Check-HB-
P830CE-Elevate
Yes
WARNING
: Set up for maintenance safety:
Remove load from platform.
Check for overhead obstructions.
Platform movement may occur.
Never Reach between scissors links or prop up
platform unless maintenance pins are in place.
No
No
Is armguard
limit switch
damaged?
See Lowering
Problems
Flowchart
No
Yes
No
Replace
limit
switch.
Replace
hydraulic
hose.
Charge battery.
See
SD-Battery-01
Yes
Reference Revision C
Part# SUPO-633E
REV C
Page 24 of 34
Is hydraulic
fluid low?
Yes
Contact
Hy-Brid Lifts
Is up/down
switch
damaged?
Is Overload
Enable
Limit Switch
damaged?
No
Yes
Replace damaged
rocker switch at
upper or lower
control.
Replace
OL Enable
LS
Yes
Time and parts
available?
Yes
Replace Pump
Assembly
Does pump operate?
Try replacing
up valve
No
Is there a different problem
(something is leaking, unusually
noisy, etc.)
Replace pump
assembly.
May be worn
or defective.
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 View
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
Check wiring connections
in elevate components.
See Electrical Schematic
WS-HB-P830CE
Or
Pictorial Schematic
WSP-HB-P830CE
And instruction
Circuit Check-HB-P830CE-
Elevate
Yes
No
No
Level of skill
with hydraulic
maintenance?
Are power
connections to
elevate circuit and
switches functioning
properly?
Replace or
repair
identified
problem.
See
Parts
List
.
Check Hydraulic Circuit.
(Additional tools and higher
level of skill required) See
Hydraulic Schematic
HS-HB-P830CE
No
No
Flush down valve by
simultaneously pressing
up switch at base and
pulling e-down cable
control for 30 sec.
There may be foreign
matter lodged.
Experienced
with hydraulic
systems
Not experienced
with hydraulics
No
Yes
Yes
With platform
lowered, fill pump
reservoir with at
least 1.8 liters of oil.
Reference Revision C
Part# SUPO-633E
REV C
Page 25 of 34
