SyriXus Series Pumps Installation and Operation Guide
Section 2 Fluid System Connections and Accessories
2-16
EAR99 Technology Subject to Restrictions Contained on the Cover Page
Reassembling the
Pump
Refer to Figure 2-10 for the following steps.
1. Lower the cylinder/temperature control jacket assembly over the
piston and push rod assembly.
NOTE
To avoid seal damage, ensure that the cylinder is aligned straight
with the piston before lowering. This step is much more difficult if the
piston is not fully lowered.
2. Screw the assembly into the cylinder housing until the cylinder
is snug against the piston and no longer turns.
3. Unscrew the cylinder a minimum of half a turn.
NOTE
Do not unscrew the cylinder more than one full turn from snug posi-
tion in the previous step.
4. Line the inlet and outlet cylinder cap ports up as before. Rotate
the jacket on the cylinder so that the jacket ports are oriented in
the desired direction and lock the jacket to the cylinder by tight-
ening the set screw.
5. Lock the cylinder by tightening the lock screw.
6. Replace the front cover and adjust both covers so they are flush
with the cylinder housing.
7. Reinstall tubing.
8. Reconnect the pump pressure transducer cable.
9. Turn the pump ON and check for leaks.
2.5 Seal Options
The pump contains four seals and a wear ring.
• Transducer seal - The transducer seal is gold-plated to press into
minute gaps between the surfaces of the transducer flange and
the shelf of the cylinder cap.
NOTE
The metal transducer seal prevents fluid leakage around the trans-
ducer. It is not user replaceable and requires special procedures to
install correctly.
NOTE
The 65x and high temp models do not have a transducer seal.
