7 Servicing/Maintenance
47 of 68
Vitaprime
7.4.5.2 Mechanical seal design T, operating mode BQ
a)
b)
101.1
101.1
412.3
210
210
902
421.2 710 471.2
421.2
710
412.3
471.2
902
Fig. 6:
Mechanical seal design T, operating mode BQ
a) Sizes 40-146, 50-164, 60-200, 65-200, 80-240-11 and 80-240-15
b) Sizes 42-146 and 52-164
1. Slide back the ring retainer
9)
. Remove circlip 932 from shaft 210.
2. Remove the primary ring of mechanical seal 433. To do so, rotate the primary
ring and the spring in clockwise direction while pulling them off the end of the
shaft.
3. Undo hexagon socket head cap screws 914.2. Take pump casing 101.1 carefully
off bearing housing 350.
4. Undo nuts 920.4 and studs 902.
5. Carefully remove seal cover 471.2 from pump casing 101.1.
6. Remove lip seal 421.2 from seal cover 471.2.
7. Take the mating ring of mechanical seal 433 out of its seat in pump casing
101.1.
9)
Sizes 42-146 and 52-164 only
