Rp4 Cover Removal; Rp5A Front Cover R/R - CAIRE HELiOS Plus Technical & Service Manual

XI
Troubleshooting & Repair Procedures
RP4 – Cover Removal
1. Empty the unit (RP3).
2. Place the unit on its side with the rear cover facing you.
3. Use a T10 Torx driver to remove the Torx screws (7 in the
H300, 10 in the H850) from the rear cover.
4. Pull both legs of the carrying handle away from the covers
simultaneously.
5. Separate the rear cover about 3/4 in (2 cm) from the front
cover, and then slide it down about 3/4 in (2cm).
6. Rotate the cover counterclockwise until the vent valve le-
ver can be pulled thought the clearance opening in the rear
cover.
7. H850 Only: Remove the screw holding the vent valve to the
front cover and unsnap the QDV from the front cover.
8. Carefully lift the container assembly up and away from the
front cover and place it on the table next to the cover.
9. Re-install the case by reversing steps 1-8.
Figure 25: H300 Container Removal
Figure 26: H850 Container Removal
NOTE: Use the two longer cover screws in the top two screw
holes. Do not over tighten the screws.
NOTE: Make sure that the two indexing pins on the front of
the demand flow control valve engage the corresponding index
holes in the front cover. Center the container assembly in the
front cover mounting bosses. Ensure that the container liquid
withdrawal tube is not pinched between the front cover and the
fill connector.
NOTE: Fully seat the carrying handle in the cover handle
bosses. The handle should angle toward the front of the unit.
RP5A – Front Cover R/R
1. Remove the cover (RP4)
2. Pull straight back on the flow control knob from the outside
of the front cover to remove it.
3. Pull the demand flow control valve back out of its seat in-
side the front cover.
4. Disconnect the two flexible silicone tubes from the back of
the cannula barbs.
5. Disconnect the black urethane tube from the inlet barb of the
inline check valve.
NOTE: This is not required for newer units manufactured
without the CPC Fitting.
6. Remove the C-Clips that secure the cannula barbs to the
front cover using a flat head screwdriver.
7. Remove the cannula barbs from the outside of the front
cover.
HELiOS Portables Technical Service Manual • PN 20562190 Rev E
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