Diagnostic information 2-103
7462
937.71 Main drive motor
assembly failure
Loss of lock detected
by higher-level code.
Motor = type 1
The main drive motor assembly
may be faulty or has failed.
The internal duplex assembly
is not properly grounded to the
LVPS. This only applies to
machines with an installed
internal duplex assembly.
Warning: Ensure that the
metal frame of the internal
duplex assembly is properly
grounded to the metal frame of
the LVPS with a jumper wire as
shown in the graphic below.
If the jumper wire is NOT
present, install the 40X7028
internal duplex grounding kit.
This should only be done for
machines with an installed
internal duplex assembly.
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
“Main drive motor
assembly removal” on
page 4-20.
4. Replace the system card
assembly if problem
remains. Go to “System
card assembly removal”
on page 4-47.
937.80 Main drive motor
assembly failure
Driver over temp
detection.
Motor = type 0
The main drive motor assembly
may be faulty or has failed.
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
“Main drive motor
assembly removal” on
page 4-20.
4. Replace the system card
assembly if problem
remains. Go to “System
card assembly removal”
on page 4-47.
Error
code or
message
Error contents Description/Action Possible repair actions
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