EBARA EFQT3 - Manual (Page 35)

EBARA Fluid Handling 35
Periodically, the valve should be removed
for inspection and cleaning. When
reinstalling the relief valve, apply ‘Loctite
Pipe Sealant With Teflon No. 592’, or
equivalent compound, on the relief valve
threads. Position the valve as shown in
Figure 1 with the discharge port pointing
down.
Final Pump Assembly
(Figure 1)
Install the shaft key (16, Figure 2) and
reconnect the power source. Be sure to
install any guards used over the rotating
members.
Do not operate the pump without the
guards in place over the rotating parts.
Exposed rotating parts can catch
clothing, fingers, or tools, causing severe
injury to personnel.
Install the suction and discharge lines and
open all valves. Make certain that all piping
connections are tight, properly supported
and secure.
Be sure the pump and power source have
been properly lubricated, see
LUBRICATION.
Remove the fill cover assembly and fill the
pump casing with clean liquid. Reinstall the
fill cover and tighten it. Refer to
OPERATION, Section C, before putting the
pump back into service.
LUBRICATION
Seal Assembly
(Figure 2)
Before starting the pump, remove the vented
plug (8) and fill the seal cavity with
approximately 20 ounces (0.6 liters) of SAE
No. 30 non-detergent oil, or to a level just
below the tapped vented plug hole. Clean
and reinstall the vented plug. Maintain the oil
at this level.
Bearings
(Figure 2)
The bearing housing was fully lubricated
when shipped from the factory. Check the oil
level regularly through the sight gauge.
When lubrication is required, add SAE No.
30 non-detergent-oil through the hole for the
air vent (11). Do not over-lubricate. Over-
lubrication can cause the bearings to
overheat, resulting in premature bearing
failure.
NOTE
The white reflector in the sight gauge
must be positioned horizontally to
provide proper drainage.
Under normal conditions, drain the bearing
housing once each year and refill with
approximately 28 ounces (0.8 liters) clean
oil. Change the oil more frequently if the
pump is operated continuously or installed in
an environment with rapid temperature
change.
Monitor the condition of the bearing lubricant
regularly for evidence of rust or moisture
condensation. This is especially important in
areas where variable and cold temperatures
are common.
For cold weather operation, consult the
factory or a lubricant supplier for the
recommended grade of oil.
Power Source
Consult the literature supplied with the
power source, or contact your local power
source representative.
DANGER!
CAUTION!