Flowserve Guardian Sealless Metallic - Manual (Page 55)

GUARDIAN USER INSTRUCTIONS ENGLISH 71569212 08-11
Page 55 of 68 flowserve.com
The impeller will be difficult to turn
because there is deformation of the O-rings
during seating of the impeller.
6.9.5 Mounting the drive assembly to the
casing
a) Before mounting the drive assembly to the pump
casing, drive the studs [6572] into the appropriate
tapped holes. Place a new bearing holder/casing
gasket [4590.1] on the gasket face of the bearing
holder.
b) Move the drive assembly into position in front of
the casing. Slide the drive assembly into the
casing and thread the eight (8) casing fastener
nuts [6580] onto the casing/adapter fasteners
[6572]. Torque these bolts in an alternating
pattern.
c) If the pump flange(s) have tapped holes, select
flange fasteners with thread engagement at least
equal to the fastener diameter but that do not
bottom out in the tapped holes before the joint is
tight.
d) Secure the bearing housing foot with appropriate
fastener(s).