Riso RN SERIES Technical Manual page 125

CHAPTER 8. PRINT DRUM SECTION
REMOVING THE PRINT DRUM SUPPORTS (R) AND (F)
[Precautions on Reassembly: 1]
• Use the tool (Print drum JIG) when tightening the drum shaft clamper mounting screws.
• Move the print drum to position A, insert the tool (Print drum JIG) through the holes in the Drum front
support ass'y [A], Print drum support (F) [B], Print drum support (R) [D], and Drum rear frame plate
[E], and then tighten the Allen bolts on both Drum shaft clampers.
A: Drum front support ass'y
B: Print drum support (F)
C: Tool (Print drum JIG)
D: Print drum support (R)
E: Drum rear frame plate
[Precautions on Reassembly: 2]
• Align the positioning hole [G] in the Joint gear [F] over the positioning holes in the Drum rear frame
plate and Print drum main gear.
• Adjust the position of the Junction gear ass'y [H] to allow a small amount of backlash between the
Junction gear and the Joint gear [F] (and Print drum main gear).
F: Joint gear
G: Joint gear positioning holes
H: Junction gear ass'y
A
B
C
F
G
RN (Version 1.0)
Print drum JIG
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D
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E
H