6. Remove the strainer, if any.
7. Remove the propeller shaft.
8. Remove the impeller screw, the barrel nut, and the parallel key.
Install the agitator unit
Remove the necessary pump parts to make the agitator area accessible.
1. Lock the impeller:
If applicable use a rod (wooden or plastic) or a chain to lock the impeller in place.
2. Install the propeller shaft:
a) Fit the barrel nut and the new impeller screw and tighten.
Make sure that the tension pin fits into the groove in the impeller.
For tightening torque, see
(page 27).
b) Tighten it a further 1/8 turn (45°).
c) Apply grease to the contact surfaces between the propeller shaft and the barrel nut.
d) Fit the propeller shaft into the barrel nut and tighten, using the key handle on the propeller shaft.
Tightening torque: 187 Nm (138 ft-lbs)
e) Check that the impeller can rotate freely.
3. Fit the strainer, if any.
4. Apply a small amount of grease into the taped hole in the agitator propeller.
5. Fit the propeller, the retaining ring, washer, the propeller screw into the propeller shaft and tighten.
Tightening torque:
For tightening torque, see
(page 27).
6. Fit the wear/protective plug into the propeller.
7. Check that the impeller can rotate freely.
Service the pump
Type of
service
Purpose
Inspection interval
Inspection
To prevent operational interruptions and machine
breakdown. Measures to secure performance and
pump efficiency are defined and decided for each
individual application. It can include such things as
impeller trimming, wear part control and
replacement, control of zinc-anodes and control of
the stator.
4,000 hours or 1 year, whichever
comes first.
Applies to normal applications and
operating conditions at media (liquid)
temperatures <40°C.
Major
overhaul
To secure a long operating lifetime for the product.
It includes replacement of key components and the
measures taken during an inspection.
8,000 hours or 3 years, whichever
comes first.
These intervals apply to normal
applications and operating conditions
at media (liquid) temperatures <40°C.
NOTICE:
Shorter intervals might be required for tough operating conditions such as very abrasive and corrosive
applications and media (liquid) temperatures >40°C.
Inspection
Service item
Action
Cable
1. If the outer jacket is damaged, replace the cable.
2. Check that the cables do not have any sharp bends and are not
pinched.
Maintenance (Continued)
Flygt 5150.350, 5150.360 Installation, Operation, and Maintenance Manual
37
Содержание Flygt 5150.350
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