BJM Pumps KZN-HYD6R - Manual (Page 26)

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ASSEMBLY:
Carefully press bearings (#21, 26) onto shaft (#22).
Install lip seal (#27) if necessary, into bearing support.
Carefully install stationary, seat section of upper mechanical seal (#33) into recess on
bottom of bearing support (#25). See Fig. A.
NOTE: Lightly lubricate outside surface of rubber cup and carefully slide seat
assembly. into place keeping the shiny surface (lapped side) of the seat outward
toward the mating face on the rotating unit.
Slide shaft and bearing assembly. into top of bearing support.
Slide bearing retainer (#24) over top of shaft and install onto bearing support with (3)
bolts (#23). Evenly tighten bolts. Do Not Over Tighten!
Lightly lubricate upper rotating seal unit and VERY CAREFULLY slide onto shaft until it
contacts the stationary seat. See Fig. A.
Lightly lubricate lower rotating seal unit and VERY CAREFULLY slide onto shaft until
the rubber bellows contacts the rubber bellows of the upper unit. The silicon carbide
face is outward. See Fig, A.
Carefully press lip seal (#39) into recess on bottom of lower seal cover (#38) keeping
the lip facing outward See Fig. A.
Install stationary silicon carbide lower seal seat into top of lower seal cover (#38) and
install (4) Phillips head screws (#34) holding retaining plate (#35).
Slide O ring (#36) onto lower seal cover (#38).
Lightly lubricate seal surfaces with a drop of clean oil and slide lower seal cover
assembly. onto outer casing (#14). Secure with (4) bolts (#37) with lock-washers.
Slide shaft sleeve (#40) over shaft until it slides through the lip seal and stops.
NOTE: Short side of sleeve goes through lip seal.
Install shaft and bearing support assembly, onto volute (#32) with wear ring (#53)
installed, and install and tighten (8) bolts (#31) with Iock-washers.