MTS Series 642 Bend Fixtures - Manual (Page 41)

Series 642 Bend Fixtures Product Information Operation 41
Change Rollers—Model 642.001 Bend Fixtures
Note If the bend fixture is not installed in the load unit, skip ahead to Step 5.
1. Make sure the crosshead is locked.
2. Apply high hydraulic pressure to the load unit.
3. Move the actuator so that the bend fixture halves will be far enough apart for
easy roller replacement.
4. Remove hydraulic pressure from the load unit.
Your hands are in a crush zone when you replace the rollers
Your fingers and hands could get crushed.
Make sure that you have locked the crosshead have removed hydraulic pressure
from the load unit.
Model 642.001 Roller Block Assembly
5. Remove the retaining wire or elastic band holding each end of the roller
against the roller support block.
6. Remove the existing roller and replace with the desired size roller. Roller
sizes 1 mm, 2 mm, and 3 mm are placed in the smaller grooves closest to the
center of the bend fixture. The 4 mm and 5 mm rollers fit in the larger
grooves.
7. Replace the retaining clips or elastic bands.
WARNING
Roller Support Block
Retaining Wire (high-temperature) or
Elastic Band (ambient temperature)
Roller
Small Groove; 1 mm, 2 mm
Large Groove; 3 mm, 4 mm, 5 mm