Pumping Block Assembly - Cardinal Health Alaris GW Technical & Service Manual

Pumping block assembly

1. Unplug the motor wiring loom from the Control
PCB in the front case.
2. Remove the flow direction indication label from
the front of the pump.
3. Unscrew the four screws, collect two washers that secure the pumping block to the front case, two of which are located behind
the label and two that are near the door hinge.
4. It should now be possible to push out the pumping block and completely separate it from the front case. When doing this, take
care not to lose any of the pumping fingers, or copper finger strip, which will be free to fall out when the main chassis is removed.
Retain all of them for re-assembly later.
5. Reassemble in reverse order. Tighten the countersunk screws first, then the pan head screws. Ensure the pumping fingers are
the correct way around with the narrow curved end in contact with the tubing. Fit a new flow direction label to the front of the
pump.
IMPORTANT: Recommended when serviced, grease should be applied a minimum of once every 1
months.
The Alaris® GW Volumetric Pump uses Molykote grease (F) to lubricate the moving mechanical
parts of the pumping mechanism to reduce the current draw of the pump. Only Molykote PG4
grease has been approved as compatible with the pump components. Each of the cams should
have a thin layer applied to the circumference so that the fingers run smoothly over the cam face.
The grease can be applied by a lint-free cloth or finger for example, to achieve an even layer over
each cam.
Item Description
A ASENA GW, KIT, PUMP BLOCK 230V
B ASENA GW, KIT, PUMP BLOCK 110V
C ASENA GW, ASSY, MOTOR WIRING LOOM
D ASENA GW, ASSY, STRIP FINGER (Be Cu)
E ASENA GW, KIT, FIXINGS(SCREWS,WASHERS,ETC)
F ASENA GW SPARES KIT MOLYKOTE GREASE
Alaris® GW Volumetric Pump
Spare Parts Replacement Procedures
(D) Strip finger
Pumping fingers
(E) Fixing screws (x4)
Part Number
1000SP00257
1000SP00329
1000SP01077
0000EL00816
1000SP00489
1000SP00469
36/77
Washers (x2)
(C) Motor wiring loom
(A/B) Pumping block assembly
1000SM00006 Issue 4