Gardner Denver Elmo Rietschle Vacfox VC 50 Instructions De Service page 6

Handling and Setting up (pictures
Pumps that have reached operating temperature
may have a surface temperature at position (Q) of
over 70°C.
WARNING! Do Not Touch.
Suction flange (D), oil filler ports (H, H
drain plugs (K), gas ballast (U) and oil separator housing (T)
must all be easily accessible. The cooling air entries (E) and
the cooling air exits (F) must be a minimum distance of 20 cm
from any obstruction. The discharged cooling air must not be
re-circulated. For maintenance purposes we recommend a
space of 0.4 m.
The VC 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 fitting anti vibration mounts.
This range of vacuum pumps are almost vibration free in
operation.
Installation (pictures
For operating and installation follow any relevant
national standards that are in operation.
1. The vacuum connection (A) is situated on the suction
flange (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 top level of the oil sight glass (l). After filling, make sure the oil filler port is closed.
3. The electrical data can be found on the data plate (N) or the motor data plate. The motors correspond to DIN EN 60034 and have IP 54
protection and insulation class 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 a 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.
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. Connect the suction pipe at (A).
3. Run the pump for two minutes using the correct rotation. Stop pump and top up the oil using the oil filler port (H) to the top level (see sight glass (l)).
Repeat this process until the oil pipes are completely full.
On no account open the oil filler port when the pump is operating.
4. Vacuum regulating valve (optional extra):
The vacuum can be adjusted by turning the regulating valve 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 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 inhalation of these mists may result in health problems, therefore it is extremely
important to make sure that the installation area is well ventilated.
, and )
), oil sight glass (I), oil
1
and )
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H D M N
Q K I
Q
max.
T L
min.