Gorman-Rupp Pumps S4A1-E25 460/3 1396155 and up - Manual (Page 21)

S SERIES PUMPS OM-06098
PAGE C - 5 OPERATION
month thereafter. Check the motor lubrication level
any time the pressure relief valve is activated, and
replace the oil annually.
Before installing or removing the lubrication
plug(s), always clean the area around the plug(s)
to prevent contamination.
Draining Oil
Refer to the Parts List in Maintenance and Repair
- Section E for drain plug location.
Remove the drain plug slowly to release any pres­
sure. Install a short pipe nipple in the hole. Place a
clean container under the plug and, using a hoist,
tilt the pump at an angle of approximately 60
_.
Repeat the procedure for the motor housing oil.
Condition Of Oil
Check the condition of the oil drained from the
pump. Clear oil indicates that the pump seal(s) are
functioning properly. If the oil is milky or contains
a small amount of water, it must be changed.
If the oil contains a large amount of water, it must
be changed, and the seal(s) must be checked be­
fore the pump is put back in operation (refer to the
Maintenance and Repair Manual).
Adding Oil
Refer to Table B-2 in INSTALLATION for oil ca­
pacities and positions for filling the seal cavity in
your pump. Motor cavities requiring lubrication
should always be positioned vertically for filling.
The grade of lubricant used is critical to the opera­
tion of this pump. Use premium quality submers­
ible pump oil as specified in the following table. Oil
must be stored in a clean, tightly closed container
in a reasonably dry environment.
When lubricating the seal cavity, remove the lu­
brication plug as indicated in Draining Oil, and
position the pump as indicated in Table B-2. Add
premium quality submersible pump oil through
this plug hole. If the pump is to be positioned verti­
cally or at an angle, fill the cavity to the bottom of
the plug hole. If the pump is to be positioned hori­
zontally, completely fill the cavity.
Install and tighten the lubrication plug.
When lubricating the motor cavity, add oil through
the hole for the pressure relief valve. If the pump is
equipped with a motor lubricant level plug, remove
this plug and fill the cavity until oil escapes through
the hole. If the pump is not equipped with a motor
lubricant level plug, fill the cavity to the top of the
hole.
Reinstall the pressure relief valve.