Viking Pump TSM280: Duralobe (Discontinued) - Manual (Page 57)

Page : 55
4.3.9 Hybrid Double Mechanical Seal
Fig
36
- During Pump assembly fit the seal housing (28) to the rotorcase securing
with screws (26) tightening to correct torque, refer to section 5.2. Ensure
the gasket or o-ring (27) are in place before tightening screws (26)
- Install the outboard o-ring (45) into the seal face (46).
- Before final assembly check that the seal faces are absolutely clean, use a
soft tissue and a suitable solvent based cleaner for best results.
- Install seal cartridge assembly (comprising parts 45, 46, 47, 76) onto the
shaft ensuring that the drive lugs and the drive slots engage.
- Install o-ring (49) onto the seal seat (48).
- Install seal cartridge assembly (comprising parts 49, 48) into rotorcase,
ensure anti-rotation lugs and the anti-rotation washers (28B) engage.
- Install o-ring (50) onto the static seal seat (31).
- Install the seal seat assembly (comprising parts 30, 31) into the rotorcase,
ensuring that the drive lugs and the drive slots engage.
- Install o-ring (32) onto the rotary seal face (33).
- Install the seal assembly (comprising parts 32, 33) into the rotor.
- To disassemble reverse the above procedure.
- Before disassembling the seals, ensure pump is fully shutdown, refer to
section 3.5.