Removing The Main Shaft Assembly - Riso RZ3xx Series Technical Manual

4. Removing the Main Shaft Assembly

(1) Remove the Main belt from the machine (Refer to page 3-8).
(2) Remove the following springs.
- Separator spring
- Follower spring
- Sector gear spring
- Guide roller pressure spring
(3) Detach the main shaft assembly.
Separator spring
<< Precaution in assembly >>
- In attaching the Main shaft assembly back on the machine, first insert the 8mm diameter jig shaft in the
paper feed drive area to fix the gears at Position-B, and then mount the Main shaft assembly back on the
machine, aligning the markings between the Main gear and the Inner vertical positioning bear.
Inner vertical positioning gear
Main gear
RISO Inc. Technical Communications
Main shaft assembly
Follower spring Guide roller pressure spring
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CHAPTER 3: MAIN DRIVE
0316
Sector gear spring
Markings on two gears
0322
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