Rep 4.26 Accessory Pwb Replacement - Challenge CMT-130TC Service Manual

REP 4.26 Accessory PWB Replace-
ment
The following procedure outlines the steps nec-
essary to replace an infeed/outfeed accessory
PWB.
CAUTION
Observe standard ESD protection procedures
while replacing any PWB's. Damage may result
due to static discharge.
Procedure
1. Switch the main power OFF and lockout
power to the trimmer.
WARNING
Disconnect and lockout power as described
in the Power Lockout Procedure on page ix.
2. Remove the door or panel that covers the
accessory's electrical panel.
3. Disconnect all cable connectors from the
PWB.
4. Remove the five nuts that mount the PWB to
standoffs on the electrical panel (Figure
4-44).
5. Carefully remove the new PWB from the
electro-static bag that it was shipped in, and
place the old PWB in the empty bag.
6. Install the new PWB on the five standoffs on
the electrical panel, and attach it securely
with all five nuts.
7. Securely connect all cables to the new
PWB.
8. Reinstall the electrical panel door/cover.
CMT-130TC Book Trimmer
9. Restore power to the trimmer and switch the
main power ON.
10. Run a few test books through the trimmer
and accessories to make sure everything is
working properly.
Figure 4-44. Stacker PWB
MAY 2019
4-31 4. Repair/Adjustment Procedures