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Replacing TQ400 &TQ800 Mechanical Seal
1.Removing mech seal.
1
Using Allen wrench (metric size) to remove the 6
screws.
3
Remove the 3rd stage impeller.
(Disregard the process for TQ400)
5
nd
Remove the 2
stage impeller.
2
Using wrench to remove the stud bolt.
4
Remove the intermediate chamber and the chamber
seat.(Disregard the process for TQ400)
6
Remove the intermediate chamber.
WI-D3-S-B002E-1
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Summary of Contents for Walrus TQ400
- Page 1 Replacing TQ400 &TQ800 Mechanical Seal 1.Removing mech seal. WI-D3-S-B002E-1 Using Allen wrench (metric size) to remove the 6 Using wrench to remove the stud bolt. screws. Remove the 3rd stage impeller. Remove the intermediate chamber and the chamber (Disregard the process for TQ400) seat.(Disregard the process for TQ400)
- Page 2 Remove the 1 stage impeller. Remove the cap and spring. Remove the rotary parts of mechanical seal. Remove ceramic parts from mech seal kit. Remove the stationary part (rubber) of the mechanical seal...
- Page 3 2.Assembling mech seal. Spray water on the shaft as lubrication. Place the stationary part in position and press in. Place the spring onto rotary parts. Place the cap onto spring. Press in the rotary parts. Identify impellers – shorter shaft is the 1 stage while longer ones are 2 &...
- Page 4 Assemble the 1 stage impeller. Assemble intermediate chamber. Assemble the 2nd stage impeller. Install O-ring onto the intermediate chamber seat. (Disregard the process for TQ400) Install intermediate chamber and chamber seat. Install the 3 stage impeller. (Disregard the process for TQ400)
- Page 5 Install the pressure tank Identify different sizes of stud bolts. (arrow on top position) TQ400 M6x30mm – 2 pcs, M6x88mm x 4 pcs Identify different sizes of stud bolts. Install shorter stud bolts on the red circled places. TQ800 M6x55mm – 2 pcs, M6x115mm x 4 pcs...
- Page 6 Tighten up the stud bolts.