DB-300-9 31
7.1.2 OAS series
See see figure 21, page 31.
• Drain oil from the oil return line (4).
• Open the flange (1). Collect any remaining oil.
• OAS332 and OAS744: Unscrew the filter cartridge
(3). OAS1055 .. OAS3088: Remove the screw (2).
• Pull out the filter cartridge (3) downwards.
Fig.21: OAS series: Changing the filter cartridges
1 Flange
2 Fixing screw
3 Filter cartridge
4 Oil return