Install cap
1. Insert the O-ring in the groove in the cap.
2. Install cap on stand.
3. Tighten the 4 Allan head screws.
– Tightening torque:
6.0 Nm
.
Fill fresh operating fluid
1. Screw the drain screw in up to the stop.
– Be careful with the O-ring.
– Tightening torque:
3.0 Nm
2. Fill new operating fluid.
3. Check level.
4. Screw the drain screw in completely.
– Be careful with the O-ring.
– Tightening torque:
3.0 Nm
7.5 Remove and clean gas ballast filter
The gas ballast valve is soiled if the vacuum pump takes in ambient air containing dust.
1
2
3
5
4
6 7
8
9
10
11
12
13
14
15
Fig. 18:
Individual parts of the gas ballast valve
1 Valve housing
9
Cylinder bolt
2 O-ring 6 × 2.2
10
Rotary knob
3 Tappet
11
Countersink screw
4 O-ring 8 × 2
12
O-ring 27 × 2.5
5 Compression spring
13
Plate spring
6 Washer
14
Washer
7 Circlip
15
Cylinder screw
8 Cam plate
7.5.1 Remove gas ballast valve
Required tool
● Allen key,
WAF 3
1
3
2
4
Fig. 19:
Remove gas ballast valve
1 Cylinder screw
3
O-ring
2 Valve housing
4
Cap
Maintenance
40/60
