Multitec
Hinge down the reservoir of the constant-level oiler 638. Pour in
the oil through the hole until oil appears in the vertical portion of
the connection elbow (see Fig. 7.2-1). Then fill the reservoir of
the constant-level oiler with oil and snap it back into operating
position. After a short time check whether the oil level in the
reservoir has dropped.
It is important to keep the reservoir two thirds full at all times.
Lubricant quantities
Grease quantities
A grease quantity of 5 to 20 grams is required per hearing,
depending on the bearing size.
Note : For several designs the rolling element bearings are
lubricated for life. In these cases there is no lubricating nipple on
the bearing bracket.
Oil quantities
Pump size Oil quantity in cm
3
32 250
50 400
65 400
100 500
125 500
150 650
Motor
Motors without lubricating nipple : The rolling element bearings
have been lubricated in the supplier’s factory for an operating
period of 15000 h or 2 years under normal operating conditions.
Motors with lubricating nipple : The rolling element bearings must
be re-lubricated at the intervals indicated on the motor nameplate
(approx. 500 h).
7.2.3 Shaft Seal
Mechanical seal :
The mechanical seal is maintenance-free.
Gland packing :
The nuts of the gland cover must only be tightened slightly. The
gland cover must be at right angles to the shaft. After the pump
has been primed and prior to start-up, make sure the gland packing
is set to allow a larger amount of leakage. After approximately 1
operating hour, tighten the nuts at the gland cover gradually until
leakage has been reduced to individual drops (approx. 7 l/h).
7.2.4 Coupling
When the flexible coupling elements show signs of wear after a
certain operating period, they must be replaced in due time and
the alignment motor/pump has to be checked.
7.3 Dismantling
If you need additional information or instructions, please contact
KSB’s customer service !
7.3.1 General Instructions
Drainage / Flushing
If the pump was used for handling liquids posing health
hazards, see to it that there is not risk to persons or
the environment when draining the medium. All relevant
laws must be heeded. If required, wear safety clothing and a
protective mask.
The flushing liquid used and any liquid residues in the pump must
be properly collected and disposed of without posing any risk to
persons or the environment.
7.3.2 Preparations for Dismantling
Make sure to switch off the pump unit before
starting any dismantling activities. Secure the pump
so as to make sure it cannot be switched on accidentally! The
shut-off elements in the suction head/lift line and the discharge
line must be closed and secured against inadvertent opening.
The pump must have cooled down to ambient temperature. The
pump casing must be drained and its pressure must be released
and the casing must be drained.
Noxious, explosive, hot or other hazardous media shall be drained
without posing any risk to persons or the environment. We
strongly recommend to flush the pump after drainage.
Flushing and cleaning the pump is an absolute necessity before
sending the pump to the workshop. In addition, all pumps must
be supplied with a cleaning certificate.
After a prolonged operating period, some components may be
hard to pull off. We recommend to use a brand name de-rusting
agent or a suitable pull-off device.
Under no circumstances use force.
Dismantling must always be carried out in accordance with the
sectional drawings at the end of these operating instructions (See
section 9 - general drawings).
Heavy components must be sufficiently supported during
dismantling. The components shall be marked with their sequence
of dismantling, to make sure that they will be reassembled in the
correct sequence.
Thoroughly clean all dismantled components and inspect their
condition. Careful examination may help to find the cause for
pump failure, if any, if in doubt, replace the components. Always
replace parts which are subject to wear (gaskets, O-rings, casing
wear rings, rolling element bearings).
7.3.3 Dismantling the Bearings
The sections below describe partial dismantling (bearings, seals,
etc.) and complete dismantling of the pump unit.
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