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Rietschle CLFH 341 Instrucciones De Uso página 6

Bombas de vacío

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  • ESPAÑOL, página 29
Handling and Setting up
(pictures
,
and
)
Pumps that have reached operat-
ing temperature may have a sur-
face temperature at position (Q) of more
than 70° C.
WARNING! Do Not Touch.
The inlet box (D
) filter housing (D
1
filler ports (H, H
), oil sight glass (I), oil
1
drain plugs (K, K
), gas ballast (U) and oil
1
separator housing (T) must all be easily
accessible. The cooling air entries (E) and
the cooling air exits (F) must have a mini-
mum distance of 20 cm from any obstruc-
tion. The discharged cooling air must not
be re-circulated. For maintenance purposes
we recommend a space of 0.5 m in front of
the filter housing and oil separator.
The CLFH and CLFEH pumps can only
be operated reliably if they are installed
horizontally.
For installations that are higher
than 1000 m above sea level there will be a loss in capacity. For further advice please contact your supplier.
When installed on a solid base, the pumps may be installed without fixing down. If the pumps are installed on a base plate we would recommend
to fit anti vibration mounts. These range of vacuum pumps are almost vibration free in operation.
Installation (pictures
and
For operating and installation follow any relevant national standards that are in operation.
1. The vacuum connection (A) is situated on the inlet housing (D
The air handled can be emitted into the atmosphere through the exhaust port (B) or by utilising an exhaust pipe.
Long and/or small bore pipework should be avoided as this tends to reduce the capacity of the pump.
The exhaust port (B) must not be obstructed or partly obscured.
2. The lubricating oil (for recommended brands see under servicing) can be put into the pump at the oil filler port (H) of the oil separator housing,
until the oil level shows at the upper mark of the oil sight glass (l). The oil cooler should also be filled via the oil filler (H
both oil filler ports are closed.
3. The electrical data can be found on the data plate (N) or the motor data plate. The motors correspond to DIN/VDE 0530 and have IP 54
protection and insulation class B or F. The connection diagram can be found in the terminal box on the motor (unless a special plug connection
is fitted). Check the electrical data of the motor for compatibility with your available supply (voltage, frequency, permissible current etc.).
4. Connect the motor via motor starter. It is advisable to use thermal overload motor starters to protect the motor and wiring. All cabling used
on starters should be secured with good quality cable clamps.
We recommend that motor starters should be used that are fitted with a time delayed trip resulting from running beyond the amperage setting.
When the unit is started cold overamperage may occur for a short time.
5. Unloading valves (optional extra)
If a vacuum pump is started utilising a star/delta starter it is an advantage to fit an unloading valve (V); when starting the pump on star the
unloading valve opens and unloads the start of the pump. When the motor has reached normal speed it is switched into delta, the valve closes
and the pump begins to evacuate the system.
The electrical installation may only be made by a qualified electrician under the observance of EN 60204. The main switch must
be provided by the operator.
Initial Operation (pictures
1. Initially switch the pump on and off for a few seconds to check the direction of rotation against the direction arrow (O).
2. Run the pump for two minutes using the correct rotation. Stop pump and top up the oil to the correct level (see sight glass (l)). If the oil filler port (H
is not accessible top up the oil using the oil filler port (H) repeat this process until the oil cooler is completely full. On no account open either
oil filler port when the pump is operating.
3. Connect the suction pipe at (A).
4. Vacuum regulating valve (optional extra):
The vacuum can be adjusted by turning the regulating valve (C) according to the symbols as indicated on the top of the regulating valve.
Potential risks for operating personnel
1. Noise Emission: The worst noise levels considering direction and intensity (sound power), measured according to DIN 45635 part 3 (as per
3. GSGV), are shown in the table at the back. When working permanently in the vicinity of an operating
pump we recommend wearing ear protection to avoid any damage to hearing.
2. Oil mist in the Exhaust Stream: Even with the high efficiency oil mist eliminator the exhausted air could
still contain extremely low amounts of oil mist which can occasionally be detected by smell. Permanent
breathing of these mists may result in health problems, therefore it is extremely important to make sure
that the installation area is well ventilated.
), oil
2
E
)
and
)
C
O
B
F
F
F
F
) or filter housing (D
).
1
2
V
N
M
T
R
H
A
D
E
2
). After filling make sure
1
f
3
H
1
E
K
I
K
1
)
1
g
h

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