OM-06099
S SERIES PUMPS
PAGE E - 23
MAINTENANCE AND REPAIR
Table E-1. Vacuum Test Data
Pump
Model
Seal Cavity
Vacuum
(In. Hg.)
Motor Cavity
Vacuum
(In. Hg.)
Duration
(Minutes)
Duration
(Minutes)
S4B
30
6
20
2
LUBRICATION
Seal Cavity
Check the oil level in the seal cavity before initial
startup, after the first two weeks of operation, and
every month thereafter.
Check the oil level only when the pump
is cool. If the oil level plug is removed
when the pump is hot, pressure in the
seal cavity can cause hot oil to be
ejected as the plug is removed.
To check the seal cavity oil, lay the pump on its side
and remove the seal cavity plug (11) in the interme
diate. Tip the pump and drain off a small amount of
oil into a transparent cup. If the oil level is abnor
mally low, or the color milky or dark, refer to
Drain
ing Oil From Seal Cavity
in this section for instruc
tions and troubleshooting tips. If the oil is clear, ap
ply `Loctite Pipe Sealant With Teflon No. 592.' or
equivalent to the threads of the pipe plug, before
reinstalling the plug.
To fill the seal cavity, remove the pipe plug (12) and
add the recommended grade of submersible
pump oil. Apply `Loctite Pipe Sealant With Teflon
No. 592.' or equivalent to the threads of the pipe
plug, before reinstalling the plug.
See Table E‐2 for quantity of lubricant when lubri
cating a dry (overhauled) pump. See Table E‐3 for
lubricant specifications.
The grade of lubricant used is critical to the opera
tion of this pump. Use premium quality hydraulic oil
as specified in the following table. Oil must be
stored in a clean, tightly closed container in a rea
sonably dry environment.
Table E-2. Oil Quantity
Pump Model
Seal Cavity
Motor Cavity
S4B
256 ounces (10,4 liters)
160 ounces (2,8 liters)