Viking Pump TSM280: Duralobe (Discontinued) - Manual (Page 61)

Page : 59
4.3.13 Duralobe Single O-ring Seal S2, S3, S4
Fig
41
- During Pump assembly fit the stop washers (160) to the rotorcase securing
with screws (26) tightening to correct torque, refer to section 5.2.
- Install O-rings (154) to Rotorcase sleeve (158).
- Install Sleeve assembly (comprising parts 154, 158) to Rotorcase (40).
Note:- that the sleeve is a press fit so ensure that the sleeve is square
when pressing it into the rotorcase and it is against the stop washers.
- Install O-ring (155) into the Rotor (41).
- Install the rotor (41) onto the shaft making sure not to damage the o-ring
(155).
- To disassemble reverse the above procedure.
- Before disassembling the seals, ensure pump is fully shutdown, refer to
section 3.5.