12
Meganorm
5a) Assemble the studs (902) at the pressure cover (163).
So, assemble the packing (461) at the sealing
chamber (pumps with packing).
5b) Assemble the stationary face of mechanical seal (433)
in the pressure cover (163) (pumps with mechanical
seal).
6a) Assemble the gland cover (452), leaning it against the
nuts (920.2) (pumps with packing).
6b) Assemble the mechanical seal components (433) on
the shaft protecting sleeve (524). Lubricate a little with
oil (SAE 10 or SAE 20) or pure vaseline on the pieces
in contact with the mechanical seal (433) (pumps with
mechanical seal)
7) Assemble the shaft protecting sleeve (524) at the
shaft, having first greased its internal diameter with
Molykote G. Guide the flat gasket (400.2) at the
pressure cover; fit the discharge cover (163) at the
bearing bracket (330) and fix it with bolts (901.4)
(tighten them crossly and uniformly).
8) Assemble the flat gasket (400.1), the key (940.1), the
impeller (230) (grease its internal diameter with
Molykote G), the circlip (932), the flat gasket (400.4),
and the impeller bolt (906).
9) Assemble the key (940.2) at the shaft drive side, lock
the shaft with a device and tight firmly the impeller bolt
(906).
10) Introduce the whole set at the volute casing (102)
guiding the set through the diameter of the pressure
cover (163). Assemble the bolts (901.2) with the
washers (554.1), tightening them, crossly and
uniformly. Check manually if the rotor turn round free.
11.5.3 Pump assembly sequence with mechanical
seal with seal gland
Please see Mechanical Seal O&M Manual, which will be
attached to the pump's manual, in case of mechanical seal
supply.
