Riso RZ5 Series, Technical Manual, Page: 31 / 410

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CHAPTER 3: MAIN DRIVE
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0321
Master loading cover
Adjustment
1. Print-Drum <Position-A> Adjustment
Checks and adjustment
(1) Open the front door.
(2) Remove a screw ( M4x8: 1pc) to detach the master loading cover.
(3) Go into the test mode, and run Test Mode No.881 (Position-A stop) to rotate and stop the print drum at
<Position-A>.
(4) Run Test Mode No.884 (Clamp 3-step movement) to confirm that when the position-A compensator arm
comes down on the print drum on the 2nd of the 3 steps of the test mode, the print drum rotates back a
distance of 3mm maximum or stays still. The print drum should not rotate forward when the compensator
arm comes down.
(5) If Position-A of the print drum is not within the specified position, run Test Mode No.941 (Print drum
position-A adjustment ) to adjust the <Position-A> of the print drum.
(6) Repeat from step (3) until the position is correctly adjusted.
This adjustment does not affect the print drum position-B stop position.
2. Print-Drum <Position-B> Stop Position Adjustment
Checks and adjustment
(1) Open the front door and press the green colored print drum release button.
(2) Confirm that the print drum slides out of the machine smoothly when pulled out by hand.
(3) If the print drum does not come out smoothly, run Test Mode No. 942 (Print drum Position-B Adjustment)
to adjust the position-B stop position of the print drum.
(4) Repeat from step (1) until the position is correctly adjusted.
This adjustment does not affect the print drum position-A.
NOTE: The print drum position-B stop position is calculated from the position-B of the machine by
the pulse count of the main motor FG sensor (refer to page 3-3).