Lowara TDB 120, Инструкция по установке и эксплуатации

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Installation, Operating and Maintenance Instruction
Model TDB, TDV
TDB, TDV page 62
Revision 01
Issue 06/2012
a) Filled pumps
Switch stand-by pumps on and immediately off
again once a week. Possibly use as main pump.
If the stand-by pump is at operating pressure and
temperature, leave all sealing, flushing and
cooling systems switched on.
TDV Design: Replace the grease in the bearings
after 2 years.
b) Drained pumps
Turn shaft at least 1x week (do not switch on
because of dry running).
TDV Design: Replace the grease in the bearings
after 2 years.
7. Servicing, Maintenance
7.1 General remarks
Maintenance and servicing work must only be
carried out by trained, experienced staff who
are familiar with the contents of these Operating
Instructions, or by the Manufacturer's own
service staff.
Work should only be carried out on the pump or
pump unit when it is not in operation. You must
observe chapter 2.
7.2 Mechanical seals
Before opening the pump, it is essential that you
note chapter 2.
Mech. seals do not need to be maintained and are
completely free of leakage. Pumps with mech. seals
must only be operated when completely filled and
vented. The mechanical seal chamber must always
remain filled with liquid during operation of the pump.
If the liquid being handled drips out at the mechanical
seal, it is damaged and must be replaced.
When installing the mechanical seal make sure that
the seal casing is absolutely clean, particular care has
to be paid to the surface of the seal rings. To facilitate
the slip-on of the rotating components of the seal onto
the shaft lubricate all moving components and sliding
areas by means of water, soapy water or soft soap.
Use mineral oils only in case all elastomers are oil
resistant. Do not lubricate the surface of the seal rings.
Do not force elastomeric elements over sharp edges,
if necessary use assembling aiding sleeves.
7.3 Lubrication and Change of Lubricant
7.3.1 Grease Lubrication – TDV Design Only
Re-greasing
Grease lubricated bearings with the possibility of
re-greasing must be re-lubricated all 4000
operating hours, but at least 1x year. Clean
lubricating nipples (G) first.
Lubricating grease quality ...
... K2K-20, KP2K-20, etc. as per DIN 51825:
- Lithium soap grease
- NLGI GRADE 2
- Temperature range -20 to 120 °C
- Dripping point > 175 °C
- Base oil viscosity 70 to 150 mm²/s at 40 °C
When changing the grease type, ensure
compatibility with the residual grease.
Quantity of re-greasing (approx. value)
Pump Size
Grease Quantity
Pressure Side
[cm
3
]
TDV..... (120) 23,0
TDV..... (170) 23,0
TDV..... (220) 33,0
TDV..... (280) 33,0
Pump Size
Relubrication Intervals in Operating
Hours
3550 2950 2200 1750 1450
[min
-1
] [min
-1
] [min
-1
] [min
-1
] [min
-1
]
TDV..... (120) 3300 3800 4500 5000 5500
TDV..... (170) 3300 3800 4500 5000 5500
TDV..... (220) 2500 3300 4300 4800 5000
TDV..... (280) 2500 3300 4300 4800 5000
If the pump is left non-operational for a longer
time, the grease in the bearings should be
changed after 2 years.
7.4 Coupling
TDB Design:
No adjustment work is required.
TDV Design:
Check the clearance in the coupling components
regularly approx. every 1000 operating hours, but at
least 1x year, the radial clearance in the coupling parts
must be checked.
For couplings with rubber pads the following applies:
Unless a clearance in the couplings is necessary, the
coupling pads may wear out to approximately ¼ of
their usual thickness, before they have to be changed.
To measure the clearance in the coupling place a
mark on the O.D. of each coupling hub (see following
pic). Then fixing one hub, turn the opposite hub as far
as possible. Then measure the distance (
∆
S
V
)
between the marks of the coupling. If this measure
exceeds the value given in the chart, the packing must
be replaced. They must be replaced in sets.
Size 80 95 110 125 140 160 180 200 225 250 280 315 350 400
∆
S
v
[mm] 5,0 6,0 7,0 8,0 8,5 8,0 8,0 8,5 9,0 10,0 11,5 10,5 11,5 13,0