Commissioning
3066501_201910 WOLF GmbH | 53
6.7.4 Changing the oil pump pressure
NOTE
Incorrect pump pressure!
Damage to oil pump
► Make sure that the pump pressure in stage 2 is higher than the pressure in stage 1.
► Remove the casing.
Fig. 6.5 Pivoting the control unit downwards
► Pivot the control unit downwards.
Danfoss
Suntec
Fig. 6.6 Oil pump components
q Pressure regulating screw, stage 1
w Pressure regulating screw, stage 2
e Vacuum sensor connection
r Oil pressure sensor connection
► Insert the oil pressure gauge into the oil pump's pressure gauge test port (4).
► Enable emissions test mode
Stage 1:
► Compare value with Table 6.2 Pump pressure.
► Press the emissions test key.
Stage 2:
► Compare value with Table 6.2 Pump pressure.
HG Casing open COB-2-15 COB-2-20 COB-2-29 COB-2-40
47 Stage 1 5.0 bar 8.5 bar 9.8 bar 14 bar
49 Stage 2 13.5 bar 17.0 bar 24.0 bar 25 bar
Table 6.2 Pump pressure
Values are outside of the values of Table 6.2 Pump pressure:
► adjust pressure regulating screw, stage 2 (2) or stage 1 (1).
– Tool: 4 mm Allen key (Danfoss) or AF 8 open-ended spanner (Suntec)
– Rotate to the right to increase the pump pressure
– Rotate to the left to decrease the pump pressure