BY CUSTOM EQUIPMENT LLC
BY CUSTOM EQUIPMENT LLC
26
27
MAINTENANCE & TROUBLESHOOTING
HB-P3.6
SUPO-726
REV A
MAINTENANCE & TROUBLESHOOTING
HB-P3.6
SUPO-726
REV A
6.2 | TROUBLESHOOTING FLOWCHART: ELEVATING
Troubleshooting Step 2A: Elevating
Rev. B
Does machine elevate?
Does the
pump run?
Not At All
Ascent speed
slow or erratic?
Is the
emergency down
valve open?
Is hydraulic
fluid low?
Yes
No
Yes
Contact
Hy-Brid Lifts
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
Is up/down
switch
damaged?
Starts ascending,
then stops?
Is platform
overloaded?
Yes
Is Overload
Enable
Limit Switch
damaged?
Can you see
anything obstructing
the components?
Are power connections
to elevate circuit and
switches functioning
properly?
Remove
obstruction
Yes
No
No
Yes
Replace
OL Enable
LS
Yes
Goes up, but
comes down
Replace or
repair identified
problem. See
Parts List
.
No
Time and parts
available?
Yes
Replace Pump
Assembly
Does pump operate?
Try replacing
up valve
No
Close
emergency
down valve
Is there a different problem
(something is leaking, unusually
noisy, etc.)
Yes
Yes
Remove overload. Lower to
stowed position before
continuing use.
Yes
No
No
Yes
Yes
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
See also
Wiring Diagram WD-143-20-001-51
or
Schematic: WS-143-20-001-51
And
Hydraulic Schematic HS-HB-P3.6
Or
Pictorial Hydraulic Circuit HSP-HB-P3.6
No
Check wiring
connections in elevate
components.
See Electrical
Schematic
WS-143-20-001-51
Or
Pictorial Schematic
WSP-143-20-001-51
And instruction
Circuit Check-HB-P3.6-
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.
Check wiring connections
in elevate components.
See Electrical Schematic
WS-143-20-001-51
Or
Pictorial Schematic
WSP-143-20-001-51
And instruction
Circuit Check-HB-P3.6-
Elevate
No
No
Yes
No
No
Is armguard
limit switch
damaged?
Level of skill
with hydraulic
maintenance?
See Lowering
Problems
Flowchart
No
Yes
No
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-P3.6
No
Replace
limit
switch.
No
Experienced
with hydraulic
systems
Not experienced
with hydraulics
No
Yes
Yes
Replace
hydraulic
hose.
Charge battery.
See
SD-Battery-01
Yes
Reference Revision B
Replace damaged
switch at upper
control.
With platform
lowered, fill pump
reservoir with at
least 1.25 liters of
oil.
Flush down valve by
simultaneously pressing
up switvh and pulling e-
down cable control for 30
sec.
There may be foreign
matter lodged.
Replace pump
assembly.
May be worn
or defective.
SECTION 6 | TROUBLESHOOTING FLOWCHARTS
SECTION 6 | TROUBLESHOOTING FLOWCHARTS
