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Chapter 9
Visco
Twin_002 EN
Page 9-12
15.
Set cover in place with O-ring 2192, screw in screws 1041 and tighten them. (torque 150Nm)
16.
Connect quench chamber, fill up fluid and vent the shaft seal.
Possible damage to property
•
Slide the screw spindles together onto the shafts.
•
Before screwing in the spindle screws, wet both spindle screws 2180 at the spindle nuts
with a thread-locking compound (factory uses Loctite 270).
•
Observe the required tightening torques (Chapter 4)
.
•
When replacing screw spindles, you will also need to synchronize them via the pinion gear
drives (see Chapter 9.6)
.
•
Keep the sliding surfaces free from dust and grease. Avoid any contact with the hands. If
necessary, clean with a soft, clean cloth and acetone.
9.4.3 Double-acting shaft seal
Disassembly:
1.
Relieve quench system or counter-pressure device, drain quench fluid.
2.
Disassemble cover.
3.
Disassemble pump casing 1033.
4.
Disassemble screw spindles.
5.
Pull out inboard rotor holder 80 incl. seal faces 40 from the shafts. This will also disassemble
O-rings 90, 130 and 220 as well as drive pins 210.
6.
Loosen fitting screws 2259 and remove them along with washers 2260.
7.
Remove the seal housing via the shafts.
8.
Remove Inboard stators 11 on the front side from seal housing 1029. Remove O-rings 140.
9.
Pull out outboard stators 12 from the seal housing via the rear side of the seal housing.
Remove O-rings 140 and backup rings 170.
10.
Remove disc rings 150 along with built-in dive pins 210 from the seal housing.
11.
Pull off outboard rotors 20 from the shafts.
12.
Remove wave rings 50 from the shafts.
13.
Loosen the threaded pins of stop rings 110 and pull off the stop rings 60 incl. O-rings 30 and
160 from the shafts.
Possible damage to property
•
Equally clean the seal housing as well as the shafts and seal seats and carefully check the
removed parts. Replace any damaged parts as well as all O-rings and shaft lip type seals.
•
During disassembly be careful about the drive pins 210. If they get lost use new ones.
Therefore use grease to stick them in the holes of the drive discs 150 and inboard rotor
holders 80 respectively.
ATTENTION
ATTENTION
Manual ViscoTwin 104-xx 3A