Smiths Medical Medfusion 3000 Series, Техническое и сервисное руководство

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Parts Replacement
91 40-5648-51B
4. Remove pan head screws and standoffs holding
the extrusion (drive train assembly). Remove pan
head screws and Nylock nuts holding barrel clamp
assembly to extrusion.
5. Partially slide extrusion out of case until three tub -
ing guide screws are visible.
6. Remove pan head screw holding tubing guides
and remove the tubing guides. Note orientation of
each tubing guide.
Replacement
1. Place each tubing guide onto case top and secure
with a pan head screw and nylon washer. The
bumps on the case top help ensure correct orienta-
tion of each guide. Torque to 60 in oz (0.8 Nm).
2. Carefully slide the extrusion (drive train assembly)
back into case.
3. Ensure right end plate on extrusion does not dam-
age ear clip sensor.
4. Ensure plunger cable comes out between middle
boss and boss by the motor.
5. Slide keypad ground tab (black side toward extru -
sion) between boss by the motor and extrusion.
6. Secure extrusion with 3 standoffs and 3 pan head
screws. Torque to 100 in oz (1.2 Nm).
7. Secure the barrel clamp assembly to the extrusion
with 2 pan head screws and Nylock nuts. Torque
to 100 in oz (1.2 Nm).
8. Reinstall main board per main board section
above.
9. Close pump housing per housing section above.
Plunger case assembly
Tools needed
For this disassembly procedure you will need:
• Torque screwdriver with a Phillips head &
2.5mm hex head
• Needle nose pliers
• Safety glasses
Always work at an electrostatic-controlled work sta-
tion when disassembling the pump.
Plunger lever
Removal
1. Remove pan head screw from lever.
2. Pull plunger lever off the lever gear.
Replacement
1. Position new plunger lever onto lever gear and se -
cure with pan head screw. Torque to 60 in oz (0.8
Nm).
Plunger case disassembly
WARNING: While servicing the Medfusion ™ 3000
Series infusion pump you should wear safety glasses
as it contains springs and other small parts which
may be a hazard.
Disassembly
1. Stand the pump up on its left side so that the
plunger assembly points vertically up. Squeeze the
plunger lever and position the plunger driver for
disassembly.
2. Remove three pan head screws holding the plung -
er case halves together (do not remove screw on
lever).
3. Remove the plunger case right and remove the
plunger case seal. The lever gear will be attached to
the plunger case right. The square shaft may come
out with plunger case right; if so, pull the shaft
out of the lever gear and slide the shaft down the
plunger tube into gently press into the cam.
Reassembly
1. Remove any slack in movement of square shaft by