Smiths Graseby 3200, Technical & Service Manual

Page: 79 / 117

Smiths Medical International Ltd.
Issue 5 (August 2004) 3200 Service Manual 5 — 9
Repair procedures
1. Open the casing (see page 2-11).
2. Disconnect connector PL1 from the syringe size sensors board.
3. Remove and retain the two screws that hold the sensor assembly in place. Remove
the faulty assembly.
4. If there is a thin shim attached to the faulty assembly then remove and retain this shim.
5. Fit a new sensors assembly by reversing steps (2) to (4) and close the casing (see
page 2-11).
6. Carry out the syringe size sensors test (see Section 6).
If the pump fails to pass the syringe size sensors test it is recommended that the Syringe Size
Sensors kit (part number 0137-0025) should be obtained from Smiths Medical and fitted
according to the instructions supplied with the kit (also see the Appendix).
Syringe size
sensors
assembly
renewal
The plunger clamp cover must be removed in order to reach the internally located lock or
pin moulding. The casing of the clamp is fixed to the right hand end of the outer tube.
1. Remove and retain the two screws that hold the plunger clamp cover onto the
casing and remove the cover.
2. The lock and pin moulding together with the associated spring will now be
accessible.
3. As required, fit a new lock and/or pin and assemble the clamp as detailed in
paragraph (1) above.
Plunger clamp
repair
The ACAM pressure sensing assembly consists of the pressure board and its moulded
housing. Four screws attach the assembly to the metal ACAM sensor plate, and the ACAM
sensor assembly is fixed to the side of the pump by an adhesive sealant (Dow Corning
3145).
1. Open the case (see page 2-11).
2. Remove and retain the four short screws that fix the outer moulding in place.
Remove the moulding and the inner insulating film.
3. Remove and retain the four inner (longer) sealed screws.
4. Remove and retain the cable clamp screw just below the status sensors board and
remove PL5 from the distribution board.
5. Pass the connector through the hole in the case and prise off the sealed ACAM
sensing assembly.
6. Remove the faulty pressure sensing assembly from the ACAM sensing assembly.
7. Fit the new assembly by reversing the steps given in (2) to (6). Reassemble the
case (see page 2-11).
ACAM pressure
sensing
assembly
renewal