HAMMELMANN HDP 502 / S 1100-50, Operating Instructions Manual, Page: 270 / 311

Maintenance, dismantling, assembly Page 7 of 10 Chapter 7
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5. Pull out complete shaft with both ball bearings
32.10 and 32.11 and circlip 93.21.
7.6 Post dismantling activities
7.6.1 Hints for cleaning.
•
Clean all parts.
•
Clean the clearances and sealing surfaces
with an appropriate liquid.
7.6.2 Points to be checked
The following pump components, if installed, must
be checked:
•
Mechanical seal : If the running faces are
damaged or worn, replace the mechanical
seal.
•
Shaft and shaft sleeve : Check the shaft
within the stuffing box. If the shaft has worn
badly and is grooved, a new shaft or shaft
sleeve should be used.
•
Clearances : The difference in diameter
between impeller clearance area and casing
or cover clearance area should be 0.3 mm to
0.5 mm. In the case of excessive wear in the
clearance area, wear rings must be installed.
•
Radial seal ring : If the radial seal ring is
damaged, it must be replaced.
7.7 Assembly
7.7.1 Tightening torque
When tightening the bolts the following torques
must be used:
7.7.2 Pump assembly
Proceed as follows:
Bearing design B, C or 2 :
•
For executions with bearing housings 25,35
and 45:
1. Prior to installing bearings, the support
washer for ball bearing 50.50 must be
replaced, (only bearing housing 25). Install
ball bearings (use new ball bearings, if
necessary). Before installation, the ball
bearings must be heated to 80ºC in an oil
bath.
(Only bearing design C or 2).
2. For a pump with oil lubrication, using a tool,
press lip seal 42.10 in the bearing housing
33.00. When lip seals are used, the lip should
point towards the drive end.
21.00 50.50 32.10 50.50 32.10
3. Insert the shaft assembly into the bearing
housing from the drive end towards non-drive
end.
Thread
Torque
M8 M10 M12 M16 M20 M24 M30 M36
12
Nm
25
Nm
40
Nm
90
Nm
175
Nm
300
Nm
500
Nm
700
Nm
32.11 32.10 93.21 21.00
HAMMELMANN Code no.: 04.03226.0769
Type 32-200