Cardinal Health IVAC 571, Technical & Service Manual

Page: 75 / 104

IVAC® Volumetric Pump (Models 571 & 572) 75/104 1000SM00018 Issue 2
Spare Parts Replacement Procedures
Pincher Cam Block
Replacement Procedure
1. Break loose and remove the one screw and two washers securing the pincher cam block, they are glued in place.
2. Remove the pincher cam block.
3. Reassemble in reverse order.
Door Assembly
(continued)
Spare Parts
Item Description Part Number
A SCREW,MACH 4-40X1/4 PNH PHH 300345
B WSHR,FL,.4BA T2 ST/STA2 0000ME00310
C PINCHER,CAM,56X/57X 125368
( A ) Screw
( C ) Pincher Cam Block
( B ) Washer (x2)
Refitting notes:
Fit and adjust the pincher cam block as follows:
1) Loosely secure the pincher cam block with the one screw and two washers.
2) Open the pump door and insert a 0.125" pin gauge in the clamp of the pincher mechanism on the front panel. The
pin must sit vertically and the pin tip must sit below the pressure plate. Locating it any higher will result in inaccurate
adjustment of the pincher cam block.
3) With the pincher cam block free to move but loosely held in place by the securing screw, close the pump door over
the pin gauge. Slide the securing screw to the right until the pincher cam block rests solidly against the pincher then
tighten the securing screw, taking care not to strip the plastic threads.
4) Apply Loctite 420 to the back of the door and around the pincher cam block. Allow to dry for a minimum of 10
minutes before removing the pin gauge.
5) Insert a 0.110" pin gauge in the clamp of the pincher mechanism on the front panel. The pin must sit vertically and the
pin tip must sit below the pressure plate.
6) Close the pump door. Verify that the pin drops out of the pincher mechanism. If not, readjust the pincher cam block.