Thank you very much for this Service Manual, it helped us a lot to repair the M-4318!
...BUT: The parts list is missing and the free parts katalog on web isn't complete, so now we don't know the part numbers of the defect parts :(
We had to build them out of a working machine, and need the numbers to reorder the missing parts now.
Complete original Service Manual in good (scan) quality!
Text excerpt from page 12 (click to view)
DV-303/DVF-5020/K5020
DISASSEMBLY FOR REPAIR
2-15 Disassembling the Intermediate Chassis
1. Push the stopper downward, then rotate it until it contacts the Vertical cam. 2. Release the 2 tabs.
2-17 Disassembling the Pulley Gear and Deceleration Gear
1. Remove the screw. 2. Remove the pulley gear. 3. Remove the belt. 4. Remove the deceleration gear.
2-16 Disassembling the Vertical cam and Drive gear
1. Rotate the Vertical cam until it reaches the contact position. 2. Lift the Vertical cam straight upward to pull it out. 3. Remove the Drive gear.
2-18 Disassembling the Mechanism Loading C.B.A.
1. Remove the 2 screws.
2. Remove the 2 screws. 3. Release the three tabs.