Installation and Connection
13
Only fill in the oil
after
having installed the
pump.
3.1 Installation
Install RUVAC pumps on a flat, horizontal surface (5
°
max. tilt with respect to the longitudinal axis).
If the pump is tilted by more than 5
°
,
lubricant may enter the pumping chamber
from the gear chambers.
Keep the air intake and exhaust ducts for cooling the
motor unobstructed (for minimum clearance with respect
to the fan cowl, see Fig. 5).
The pump’s ambient temperature should be between
12
°
C and 40
°
C. Lower temperatures hamper run-up;
higher ones shorten the oil change intervals and may
lead to greater wear.
Special oil for operation at temperatures below 12
°
C is
available upon request.
Secure the pump.
Four holes in the feet are provided for this purpose.
When bolting the feet down, make certain
that there is no stress or twist on the pump
casing. Stress on the pump can change the
close tolerances between the impellers and
the pump casing and may result in damage
to the pump (use washers to equalise).
Since compensation elements must be
attached to the flanges on the suction and
pressure sides, the screws for attachment
of the feet must always be fitted and
tightened well.
Use the following screws:
RUVAC 151/251/501:
4 x M 12
RUVAC 1001/2001:4 x M 16
3.2 Filling in of the
Lubricants
The housing for the shaft seal and the oiler (10/1) are
filled with N 62 oil when the pump is supplied. The oil
level must be visible in the oiler.
Correct oil level:
1
/
3
of the oiler must be filled
when the pump is cold. Top up oil as
required.
The lubricant needed for running the pump is supplied in
a separate container.
Unscrew the oil-fill plug (10/8) and add oil.
An oil
without additives
and of viscosity class ISO VG
100 (formerly SAE 30) must be used for the pump. We
recommend our special oils N 62 or HE-200. Please
consult us if you intend to run the pump with other oils or
special lubricants.
When the pump is not running the correct oil level is:
– for vertical flow of the pump in the center
– for horizontal flow it is 6 mm above the center of the
oil-level glass (8/2).
If the oil level is too low, the bearings and
gearwheels are not lubricated adequately; if
it is too high oil may enter the pumping
chamber.
Clean the oil-fill port and screw the plug
back in using a gasket which is in perfect
condition.
The oil-fill port must be sealed air-tight.
Entry of air from the outside may cause oil-
containing gas to enter the pumping
chamber via the impellers seals.
3 Installation and Connection
Caution
Caution
Caution
Warning
Caution
Caution