ICU Medical LifeCare PCA, Technical & Service Manual, Page: 128 / 148

SECTION 7 REPLACEABLE PARTS AND REPAIRS
LifeCare PCA 7 - 36 Technical Service Manual
3. Using the nutdriver, remove the two 8-32 screws that secure the pawl/ratchet
assembly to the rear enclosure.
4. Lift the pawl/ratchet assembly from the rear enclosure.
5. Install the replacement pawl/ratchet assembly in the exact reverse order of removal.
6. Reassemble the infuser in the exact reverse order of disassembly.
7. Connect the infuser to AC power.
To verify successful replacement of the pawl/ratchet assembly, perform the PVT
in
Section 5.6
.
7.3.9.6
REAR ENCLOSURE HARNESS ASSEMBLY, EQUIPOTENTIAL
POST, AND GROUND STRAP REPLACEMENT
Recommended tools for this procedure are diagonal cutters, a set of nutdrivers, a 10 mm
open end wrench, and a medium flat head screwdriver.
Replacement parts for this procedure are:
To replace the rear enclosure harness assembly, equipotential post, and left and right
ground straps, see
Figure 7-12
,
Figure 7-13
, or
Figure 7-14
, and proceed as follows:
1. Disconnect the infuser from AC power.
2. Separate the front and rear enclosures as described in Section 7.2.2 .
3. Using the diagonal cutters, remove the cable ties that secure the patient pendant
harness to the rear enclosure harness assembly.
4. Remove the power supply shield as described in
Section 7.3.9.4
.
5. Disconnect the rear enclosure harness assembly from the power supply PWA.
6. Using the open end wrench, remove the hex nut from the equipotential post.
7. Remove the nut, lock washer, flat washer, terminal (yellow/green wire), and flat
washer from the equipotential post. Remove and inspect the equipotential post,
and replace, if required.
8. Using a 5/16 inch nutdriver, remove the three 6-32 nuts that secure the rear
enclosure harness assembly to the pole clamp nut plate.
9. Using a 3/16 inch nutdriver, remove the 4-40 nuts and washers that secure the AC
connector to the rear enclosure.
10. Remove the rear enclosure harness assembly by carefully pulling it through the rear
enclosure.
Assembly, Harness, Rear Enclosure
Strap, Ground, Left/Right
Post, Equipotential
Plate, Nut, Pole Clamp
Nut, Hex, M6 Nut, Hex, 4-40
Nut, Hex, 6-32
Washer, Lock, #4
Washer, Flat, #4
Tie, Cable