P
Prro
occe
ed
du
urre
e::
1. See
Separate the front and back covers
C
CA
AU
UT
TIIO
ON
N
•
Always use ESD protective equipment before you open antistatic bags and service electronic parts.
•
Do not place unprotected circuit boards on the floor.
2. Unplug all cables from the PCBA assembly.
N
No
otte
e -- Make note of the cable connection locations for reinstallation.
3. Unplug the four pressure transducer hoses.
N
No
otte
e -- The hoses are labeled to match the silk screen on the board for proper hose location.
4. Using a #2 Phillips screwdriver, remove the two screws that secure the support bracket. The support bracket holds the
PCBA assembly and the screen to the front pump housing. Save the screws and support bracket.
5. Using a #2 Phillips screwdriver, remove the three screws that secure the PCBA assembly to the screen. Save the
screws.
6. Grasp the air hoses, and pull out from the support surface hose connector to disconnect.
N
No
otte
e -- Make note of the air hose connection locations for reinstallation.
7. Grasp the pressure transducer hoses, and pull out from the support surface hose connector to disconnect.
N
No
otte
e -- Make note of the pressure transducer hose connection locations for reinstallation.
8. Using a stubby #2 Phillips screwdriver, remove the four screws that secure the LED board assembly to the front pump
housing assembly. Save the screws.
9. Remove the PCBA assembly.
10. Remove and discard the front pump housing (Figure 23).
F
Fiig
gu
urre
e 2
23
3 –– F
Frro
on
ntt p
pu
um
mp
p h
ho
ou
ussiin
ng
g
11. Reverse steps to reinstall.
12. Plug the pump cord into an accessible outlet.
13. Run the pump diagnostic test. All tests must pass.
14. Verify proper operation before you return the product to service.
2941-109-002 Rev AA.0
29
EN
Summary of Contents for IsoAir
Page 2: ......