Oil Fill / Level Check - CPI CMP 200 Series Service Manual

6
Regular Maintenance
6.4.0

OIL FILL / LEVEL CHECK

The insulating oil level in the HT tank does NOT require periodic checking under normal conditions. However,
if there is evidence of possible oil loss, the procedure for checking the correct oil level follows.
1. Loosen the oil fill plug screw on the tank lid.
2. With the screw sufficiently loosened, remove the rubber (neoprene) plug.
3. Use a clean ruler, strip of cardboard, or other equivalent material to determine the oil level, measured
always from the TOP surface of the lid of the HT tank.
•
Normally the oil level should be between 0.88 - 1.25 inches (22 - 32 mm) from the top of the tank
lid.
•
If the oil level is between 1.25 - 1.6 inches (32 - 41 mm) from the top of the tank lid, then clean oil
should be added as needed.
•
If the oil level is greater than 1.6 inches (41 mm) below the top of the tank lid, please consult the
factory.
4. Use only fresh oil, type Shell DIALA AX or equivalent. It is critical that air is not added when topping up
the oil. The following procedure is strongly recommended when adding oil.
•
Use a new clean syringe to remove oil from the container. A 60 cc catheter tip syringe is
recommended. Approximately 60 cc of oil is required to raise the oil level by one millimeter.
•
Turn the syringe upright and expel any trapped air.
•
Place the tip of the syringe through the oil-fill plug and into the oil, ensuring that it is below the
surface of the oil.
•
Gently eject the oil from the syringe into the HT tank, while making sure that the tip of the syringe
remains below the surface of the oil until all of the oil is emptied from the syringe.
•
Repeat the previous steps until the required amount of oil has been added.
5. Replace the oil fill plug. Once the plug is installed and the screw is properly seated, tighten the screw
4 turns. This will secure the oil fill plug. Wipe up any spills. Dispose of soiled absorber in compliance
with government requirements, and ensure conformity to local disposal regulations. THE OIL DOES
NOT CONTAIN PCBs.
Use and disclosure is subject to the restrictions on the title page of this CPI document.
Page 6-6
®
CMP 200 X-Ray Generator Service Manual
CPI Canada Inc.
Ch # 901476-08 Rev. B