User Manual

a) Coat the outside of the bearing housing (134) with oil.
b) Coat all the internal surfaces of the bearing frame (228) with oil.
c) Install the shaft assembly into the bearing frame (228).
Make sure that the shaft rotates freely.
d) Install the clamp bolts (370C) in the bearing housing (134) and tighten by hand.
e) Install the jack bolts (370D) with the locknuts (423) in the bearing housing (134) and tighten by
hand.
Assemble the frame
1. Support the frame assembly in a horizontal position.
2. Check the shaft-end play by moving the shaft forward and backward by hand, and note any indicator
movement.
If the total indicator reading is greater than the values in this table, then disassemble the shaft and
determine the cause.
Use this table as a reference for shaft-end play values.
Table 14: Shaft-end play
Frame Double row bearing Duplex bearing
STi inches (millimeters)
0.0011 (0.028)
0.0019 (0.048)
0.0007 (0.018)
0.0010 (0.025)
MTi inches (millimeters)
0.0013 (0.033)
0.0021 (0.053)
0.0009 (0.023)
0.0012 (0.030)
SCALE 0.160
3. Check the shaft-sleeve (126) runout.
a) Install the shaft sleeve.
b) Thread the impeller on the shaft until hand tight.
c) Rotate the shaft 360º.
d) If the total indicator reading is greater than 0.002 in. (0.051 mm), then disassemble the shaft sleeve
and determine the cause.
e) Remove the impeller and shaft sleeve.
Maintenance
Model 3198 i-FRAME Installation, Operation, and Maintenance Manual 87