Stryker PneumoSure, Service Manual, Page: 17 / 76

Maintenance and Service Tasks
15
EN
4.6.4 Checking High Pressure Unit HPU for Leaks
1. Connect a gas bottle with 0-100 bar manometer to gas supply connection at
rear of device.
2. Remove the high pressure tube
(3)
from the HPU outlet
(1)
(pinch plastic
ring
(2)
and pull out tube
(3)
).
3. Connect a T-adapter with venting valve and 0-7 bar manometer.
4. Briefly open and then re-close the gas bottle.
After 10 minutes, the pressure at the 0-7 bar manometer should not have
dropped more than 5 bar.
Corrective measure • Checking gas supply connection (O-ring).
• Replacing the high pressure unit HPU.
4.6.5 Checking the High Pressure Heating Unit
Fig. 4-5 High pressure unit HPU
(1)
High pressure unit HPU
(2) Plastic ring
(3)
High pressure tube HPT
(1) (2)
(3)
press
pull
Fig. 4-6 Position of high pressure heat-
ing unit HPH
(1)
High pressure unit HPU
(2)
High pressure sensor HPS
(3)
Heater/temperature sensor
(4)
Fastening screw with insulating
bush
(5)
Insulation/heat conducting foil
(6)
Adapter 01 for HPU (metal block)
(1)
(2)
(3)
(4)
(5)
(6)