Power Down; System Very Slow To Reach Temperature; Calibration Issues; Z Calibration Failure - Stratasys Dimension 768/Elite Service Manual

O. Power Down
Fails to shutdown.
Display indicates "Recovery
after uncontrolled shut-
down"
Display indicates "Recovery
after controlled loss of
power"
Shuts down immediately
after the power switch is
thrown.
Shuts down after part is
complete
P. System VERY slow to reach temperature
Envelope takes unusually
long (over 40 minutes) to
reach temperature.
Q. Calibration Issues
Tip offset cal part - support
and model over .25" offset
Tip offset values change but
do not take.
R. Z Calibration Failure
First layer too deep into modeling base
Diagnostic details:
Left square (SS)
Upper layers - Missing
1st layer - May be visible, but looks choked off.
Etches may be visible in modeling base.
Right square (model)
Upper layers - Missing or barely stuck to modeling
base. Part layer shifted.
1st layer - May be visible, but looks choked off.
Etches may be visible in modeling base.
1. Toggle the power switch again. Wait 5 minutes
2. Shut system off at the breaker.
1. AC power was interrupted. Check customer AC power.
2. Bad power switch cable.
3. UPS malfunctioned, replace UPS.
1. AC power was interrupted. Check customer AC power.
2. UPS wiring is incorrect. Check wiring
3. UPS malfunctioned, replace UPS.
1. Replace the SBC.
2. Replace the PDB.
3. Replace power switch.
1. Auto power down was enabled, normal operation.
1. Verify all covers and panels are properly installed.
2. Envelope heater(s) bad. Check heater resistance - should be about 36 ohms. If
not, replace heater(s).
3. Replace PDB
1. Check that tip offset values are close to default values:
BST = 0.10, 0.00
SST = 0.25, 0.00
1. Tip offset is changed in Maraca and the change is stored correctly in the hard
drive (verified by viewing the CFG file). When the tip_offset part is run though, the
offset does not change. Replace SBC.
1. Add +.010 to Z offset value
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