Installation, Operation, and Maintenance Manual
SUMMIT PUMP MODEL 2196 / 2196-LF / 2196-R / 2796 21
The recommended bearing installation method is heating the bearing using an
induction heater.
WARNING!
WEAR INSULATED GLOVES when using
heater. Failure to do so can result in
serious personal injury while handling hot
bearings.
NOTE: LTO frames use duplex angular
contact bearings.
Make sure bearings are mounted
in the correct order, back to
back.
7. Install a bearing lock washer (382) on the shaft.
a. Place tang of lock washer in shaft keyway.
b. Install lock-nut (136) on shaft.
c. Using a spanner wrench, tighten the nut until snug; then bend any one of the
tangs into a lock-nut slot.
8. Install inboard bearing (168A) on shaft (122).
If grease lubricated, install with shield toward impeller end.
If oil lubricated, there should be no seals or shields.
9. Install the outboard labyrinth oil seal (332A) in the bearing housing (134). Follow
Maintenance instructions in Appendix E.
NOTE: Make sure drain slots face down.
10. Apply a thin coating of lubricant to the inside of the bearing housing (134).
11. Slide the bearing housing (134) over the outboard bearing assembly (112) and
shaft (122). Place the coupling end of the shaft into the bearing housing through
the labyrinth oil seal.
On the XLO model, install the bearing cover gasket (360G).
On the STO and MTO models, install the bearing housing snap ring (361A) into
the groove on the bore of the bearing housing. Make sure the flat side is toward
the bearing.
On the LTO
and XLO models, install bearing cover (109C) and bolts (370G).
12. Install a new O-ring (496) over the O.D. of the bearing housing.
13. Apply a thin coating of lubricant to the outside of the bearing housing (134) and
slide the assembly into the bearing frame (228).
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