39 - Service and maintenance -
9.3 OIL EXCHANGE
When exchanging oil the same procedure as described in Chapter 9.2 has to be adhered to.
If there is no significant oil consumption, the oil should be exchanged every 5 years.
9.4 CHANGING THE SHAFT SEALS
1. Carefully open the oil filler plug (57) ¼
turn and wait until the oil chamber is de-
pressurized (this may take a while!) Use
a wet cloth to protect the plug.
2. The oil fill plug (57) is slotted to avoid a
sudden escape of refrigerant. Never use
a power tool to open the plug!
3. The hand wheel (85) must be completely
open to ensure that the pressure may
equalize between oil and pump chamber.
4.
Drain oil in a suitable container.
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