Cylinder Fill Test - Invacare HomeFillII AW Service Manual

SECTION 13—TROUBLESHOOTING/CYLINDER FILL TIMES
NOTE: The high pressure gauge should start to indicate raising pressure.
10. Once the pressure is above 500 psi (3447 kPa), start leak checking the unit at the test
points in the following table.
NOTE: If necessary, use a flashlight to aid in the identification of bubbles.
STAGE
Inlet tubing–Including bulk head fitting, plastic tee, check valve, outlet HEPA filter, accumulator
assembly, tubing connections, inlet fitting (bottom), head/cylinder seal, output fitting (top), and cop-
1 per tubing.
2 Inlet fitting (top), head / cylinder seal, output fitting (bottom) and copper tubing.
3,4 Inlet fitting (bottom), head / cylinder seal, output fitting.
Inlet fitting (bottom), head / cylinder seal, output fitting, high pressure switch, burst disk, and copper
5 tubing–including disconnect assembly.
DO NOT tighten fittings beyond a ¼ turn. Tightening beyond a ¼ turn risks
stretching and weakening the copper material and causing an explosion.
11. If a leak is found at a fitting, carefully tighten the fitting up to a ¼ turn to eliminate the
leak.
12. Continue inspection until pressure reaches 2000 psi (13790 kPa).
13. Once the high pressure gauge reaches 2000 ± 100 psi (13790 ± 689 kPa), the unit should
shut Off.
14. Bleed the pressure down to 1000 ± 200 psi (6895 ± 1379 kPa) and repeat STEP 13 to
confirm.

Cylinder Fill Test

NOTE: For this procedure, refer to FIGURE 13.2 on page 91.
The following procedure describes the cylinder fill test process for the HomeFill.
Tools and Supplies Needed:
• Timer (See Figure 9.1)
• O analyzer
2
• Flow meter
• Pressure gauge
• Leak Tek 50/50 mix
®
HomeFill II AW Compressor
TEST POINTS
WARNING
88
Part No 1154316