DeVilbiss iFill 535D - Circuit Breaker (535 D);Fuse (535 I); Compressor

LT-1929
14
COMPONENT TESTING, REPAIR, AND REPLACEMENT
CIRCUIT BREAKER (535D)/FUSE (535I)
The circuit breaker or fuse is located in the lower rear of the unit.
The circuit breaker fuse will activate should a major fault condition
occur within the unit.
To replace circuit breaker (Figure 4A):
1. Ensure the iFill station is unplugged from the wall outlet.
2. Remove the left and right covers from the iFill station.
3. Remove compressor and mounting plate.
4. Disconnect wires from circuit breaker terminals.
5. Use a pair of duckbill pliers to squeeze the plastic locking
tabs on the side of the circuit breaker while pushing it out of
the hole in the base of the unit.
6. Install the new circuit breaker by pushing it through the hole
until it locks into place.
7. Reconnect wires to terminals.
8. Replace compressor and mounting plate.
9. Replace covers.
NOTE–Be sure to reattach indicator panel
ribbon connector and hour meter electrical connector (refer
to Cover Removal and Replacement in this manual).
To replace fuse (Figure 4B):
1. Ensure the iFill station is unplugged from the wall outlet.
2. Use a small screwdriver to remove the fuse drawer located
in the IEC connector.
3. Remove the defective fuse and replace with a new fuse
4. Replace the fuse drawer into the IEC connector.
COMPRESSOR
A DeVilbiss GSE dual-pressure head compressor is used to
power the oxygen generating element of the iFill station. It is
located in the base of the unit beneath the Plexiglas platform and
secured to a mounting plate with four silicone motor mounts.
NOTE– An internal thermo-protective device will activate and shut
the compressor off if it overheats. It will take several minutes to
reset before the compressor can be restarted.
NOTE– A pressure relief (PR) valve is attached to each of the
pressure heads to prevent high pressure build-up in the system
should a component malfunction occur.
To replace the compressor (Figure 13):
1. Ensure the iFill station is unplugged from the wall outlet.
2. Remove the left and right covers from the iFill station.
3. Disconnect the compressor electrical connector.
4. Loosen the ladder clamps and remove the tubing from all
four compressor ttings (two intake ttings and two exhaust
ttings).
5. Use a Torx screwdriver with a size T-25 bit (or at
screwdriver) to remove the two screws from the back of the
compressor mounting plate.
6. Remove the two mounting plate support brackets by
loosening the screws (four total) from the top and bottom of
each bracket.
NOTE–The top of the support brackets is
secured to the underside of the Plexiglas mounting platform
and the bottom attaches to the compressor mounting plate.
7. Carefully lift the compressor and mounting plate out of the
iFill base.
8. Turn the compressor upside down so that it is resting on the
heads.
9. Remove the four compressor motor mount hex nuts and
mounting plate.
10. Unscrew the studded motor mounts from the compressor
feet by hand.
11. Inspect the motor mounts and replace if damaged.
12. Install motor mounts on replacement compressor and
reattach the mounting plate using the four hex nuts.
13. Position compressor and mounting plate in base and secure
with two screws at the back of the plate.
14. Reinstall support brackets and secure with screws at the top
and bottom.
15. Reattach the tubing to the four compressor ttings and
secure with ladder clamps.
16. Reconnect the compressor electrical connector.
17. Replace covers.
NOTE–Be sure to reattach indicator panel
ribbon connector and hour meter electrical connector (refer
to Cover Removal and Replacement in this manual).
To rebuild compressor:
The top end of the compressor may be rebuilt using Compressor
Service Kit part number 515ADZ-643. Follow the steps below to
rebuild the compressor:
1. Remove compressor from base of iFill station. Refer to
Compressor Replacement instructions above for removal.
To inspect and/or replace internal compo-
nents:
1. Remove the eight screws that hold the compressor heads in
place. NOTE–When removing the heads, be sure to keep
each head and its components with the correct compressor
side.
2. Check for proper placement of or damage to the gaskets on
the bottom of the compressor heads. Replace if damaged.
3. Remove reed valve plates. A reed valve is located on each
side of the valve plate.
4. The compressor reed valves should be ush with the valve
plate. If the valve is broken or not ush with the valve plate
or foreign matter is detected inside the head, clean or
replace the compressor reed valves.
To replace the compressor reed valves:
a. Remove the screw holding the compressor reed valves
in position on the valve plate and discard the used reed
valves.
b. Position the new reed valves so that they are centered
and completely cover the holes in the valve plate.
c. Place the metal retainer on the reed valves and secure
with the reed valve screw.
5. Check for proper placement of or damage to the rubber
o-ring on the bottom of the valve plate. Replace if damaged.
6. Remove piston sleeves by pulling upward and inspect cup
seal on pistons. Replace if badly worn or damaged.
To replace cup seal:
a. Remove rod screw from top of piston.
b. Remove the cup retainer plate.