Revision L MAC™ 3500 Resting ECG Analysis System 5-33
2021337-036
Maintenance: Writer Roller/Carriage Assembly Replacement
Writer Roller/Carriage Assembly Replacement
1. Remove the battery as described in “Battery Replacement” on page 5-6.
2. Remove the power supply assembly as described in
“Power Supply
Replacement” on page 5-10.
3. Inside the power supply compartment, disconnect the cable that
connects to the
writer assemb
ly to the power supply.
4. Open the unit to access the paper compartment.
5. Move the paper size bracket to the A4
position to expose one of the writer
ass
embly mounting screws.
6. Remove the screw and return the paper size bracket to the STD (8.5 x
11)
posi
tion.
7. Close the unit and turn it over so the bottom side is up.
8. Remove the four screws located on the u
nderside of the writer roller/carriage
assem
bly and lift the writer from the bottom of the unit.
9. Reassemble the writer roller/carriag
e assembly by reversing the above
procedures.
NOTE
Be sure to replace ALL fasteners and screws that were removed during
dis
assembly. Failure to replace the screw which holds the paper size
bracket in place (step 6) above could result in paper tracking problems.
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