SyriXus Series Pumps Installation and Operation Guide
Section 9 Pump Maintenance, Troubleshooting, and Servicing
9-19
EAR99 Technology Subject to Restrictions Contained on the Cover Page
Figure 9-11 Shear key replacement
9.13.2 Replacement Using
Installation Tool
A shear key installation tool is part of the Teledyne ISCO Wrench
Package (P/N 60-1247-101).
NOTE
It may be easier to use a flat blade screwdriver in the shear key gap
to pull the centermost half out first. Take care not to push the other
half into the worm gear.
Figure 9-12 Shear key installation tool
1. Insert tool onto the ball screw so that the slot on ball screw and
tool are lined up, then lock with locking pin.
2. Rotate the ball screw until the broken halves of shear key are
realigned (Figure 9-11).
3. Remove the broken shear key halves by gripping them with pli-
ers or vise grips and pulling them out.
Shear Key
Locking Pin
Shear key similar for all models
Gap
