Maintenance – Every 500 operating hours
Fig. 178
8.8.4
Checking the hydraulic lines
180
3. Remove the cover (1) from the compensa-
tion tank and check the anti-freeze concen-
tration with a conventional tester.
4. Check the condition of the coolant.
5. Thoroughly flush the cooling system if the
coolant is contaminated by corrosion resi-
dues or other suspended matter
8.10.2 „Changing the
coolant" on page 192.
6. Close the cover again.
This work must only be performed by an
expert / qualified person!
BW 138 AD-5
Ä Chapter