Rotech ANSI LTR, Инструкция по установке, эксплуатации и обслуживанию

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15
6. Check total travel of impeller in the casing, if it is more
than .030 in. improper parts or installation or too much
pipe strain is present. Determine cause and correct
before proceeding.
7. Adjust impeller clearance using procedures in the
Maintenance section of this manual.
8. Replace any auxiliary piping, and fill pump with proper
lubricant as outlined in the Maintenance section of this
manual.
9. Check to see that it is possible to rotate the shaft easily
by hand, if so continue with startup of pump in Operation
section of this manual. If shaft does not turn easily deter-
mine cause and correct
ALL MODELS
1. Clean fits between rotating assembly and impeller
housing (26).
2. Place stem plate gasket 24 number stem.
3. Loosen locking and jacking screws in the bearing
frame.
4. Install rotating assembly in impeller housing (26).
Torque bolts according to values in Table on page 13.
(Fig. 7)
5. Replace shims under frame feet and tighten frame to
baseplate. A dial indicator should be mounted to meas-
ure the distance between the top of the frame and the
baseplate. This measurement shouldn’t change as bolts
are tightened.
ASSEMBLY TROUBLESHOOTING
Pump and components are heavy. Serious physical
injury or damage to equipment could occur from
failure to properly lift and support pump. Steel-toed
shoes must be worn at all times.
! WARNING !
Problem Solution
Excessive shaft end play.
Bearing internal clearance too great.
Snap ring loose in housing groove.
Replace bearings with correct type.
Reseat.
Excessive shaft runout.
Sleeve worn.
Shaft bent.
Replace.
Replace.
Excessive bearing frame runout.
Shaft bent.
Bearing frame flange distorted.
Replace.
Replace.
Excessive stem runout. Corrosion. Replace.
Excessive stem plate runout.
Stem plate not properly seated in stem.
Corrosion or wear.
Reseat.
Reseat.
Cause