Steris 4085 - Page 101

5-6
764333-766
25. Only tabletop slide function
operates.
• Faulty hydraulic pump.
• Faulty power supply at
pump drive circuit.
• Verify backup hand control/foot pump
system function.
• Ensure voltage present at pump.
• Replace power assembly.
• Replace pump.
26. ALS alarm occurring when
raising back section with kidney
bridge down.
• Kidney bridge limit switch
bad or out of adjustment.
• Adjust or replace kidney down limit
switch.
27. Slide control board failing
frequently. Unusual noise while
tabletop is translating.
• Linear side rail bearings
faulty or contaminated.
• Replace all eight linear side bearings.
28. Failed or sticking column shrouds
during raise and lower.
• Misaligned or damaged
shrouds.
• Adjust or replace shrouds.
29. Table rocks while on casters. One
caster is not touching floor.
• Uneven floor.
• Unlevel caster mouting
pads.
• Check eveness of floor.
• Add caster shim behind caster that is too
high.
Table 5-1. Troubleshooting Guide (Cont’d)
Situation Cause Service Instructions
Table 5-2 . Troubleshooting (LCD Message) Chart
FAULT DISPLAYED FAULT DESCRIPTION FAULT ACTION
1 KEY ONLY Two pushbuttons are pressed at the
same time.
Press one button only.
DUAL COMMAND Commands are sent from the
optional foot pedal and the Hand
Control at the same time.
Hand control has priority.
REV ORIENT Flex and Reflex are disabled in
reverse orientation.
Press REV. ORIENT.
LOW BATT Battery voltage below 23 V. Plug the power cord into facility
power and ensure Power switch is
ON.
LOCK AGAIN The pressure switch status does not
change after FLOOR LOCK is
pressed or status does change and
FLOOR LOCK was not pressed.
Inspect for oil leakage; verify
pressure switch connect; change
floor lock valve block.
WRONG USE Hand Control pushbutton is pressed
and held for longer than one minute.
Release button.
SENSOR DEF The sensor voltage is out of range
(0.3 - 4.7 V).
Check sensor, wire and connection;
calibrate sensor; change sensor.
SENSOR FAIL Voltage difference between sensor
and expected value by control board.
Calibrate table.