Pfeiffer Vacuum Hena 26, Руководство по эксплуатации

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4. Mount the elbow union and the operating fluid return line.
5. Refill the operating fluid.
6. Start up the vacuum pump.
7. Perform a final pressure test on the operating fluid return line to check for leaks.
7.7 Cleaning the intake strainer
The intake strainer in the vacuum connection upper section must be cleaned:
● when the throughput decreases
● if there is visible contamination
Prerequisites
● Vacuum pump switched off
● Vacuum pump is vented to atmospheric pressure on the suction side
● Vacuum pump cooled
Required tool
● Hexagonal wrench, WAF 13
● Calibrated torque wrench
1
2
3
4
Fig. 21: Dismantling / assembling the intake strainer
1 Cylinder screw (4x) 3 Vacuum connection
2 Washer (4x) 4 Intake strainer
Dismantling the intake strainer
1. Dismantle the intake line.
2. Unscrew the cheesehead screws.
– Pay attention to the washers.
3. Remove the vacuum connection.
4. Remove the intake strainer from the intake duct.
5. Dismantle the part of the non-return valve resting in the intake duct.
Clean all parts and examine for wear
1. Clean all parts.
2. Examine all parts for wear.
Assembling the intake strainer
1. Mount the parts of the non-return valve.
2. Insert the intake strainer into the intake duct.
Maintenance
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