4 World Precision Instruments
Tubing Installation
Inspect all tubing regularly and replace if any sign of deterioration occurs. Always wear
safety glasses and protective clothing when working with chemicals.
1. Disconnect power to the pump.
2. Disconnect the suction and discharge tubing from the
pump tubing.
3. Remove four thumb screws and pump cover.
4. Pull out old pump tubing and discard.
5. Clean roller race, removing any particles that could damage tubing.
6. Using extra bracket (Fig. 1), rotate roller bracket assembly until it is in position as
in Fig. 2. (Be sure power is disconnected.)
7. Push new tubing into inlet port, anchoring the tubing in grippers (see Fig. 3).
If using 9” piece of tube, 11/2” should be extended outside of inlet port.
8. Continue to rotate the roller bracket assembly using the extra bracket, while
pushing the tubing into the roller race (Fig. 4).
9. Insert the tubing into the outer port (Fig. 5) and replace the cover and screws.
Alternate Tubing Installation
Procedure
Without removing the pump cover, run the unit
at high RPM. Pull the old tubing out from outlet
port of pump. Install new tube by inserting into
inlet port; continue feeding tube 1/4” in at a time
allowing the roller assembly to push tubing
through. When tubing is half way around the race,
put your nger over the inlet hole of the tube and
continue to feed tubing 1/4” at a time; this should
make installation easier. Continue until desired tubing extension is obtained. Run unit
one minute.
INLET PORT
OUTLET PORT
Fig. 6
