Gorman-Rupp Pumps SF4C 1528832 and up - Manual (Page 44)

SF SERIES OM-06511
MAINTENANCE AND REPAIR PAGE E - 20
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, clean any dirt from
around the seal cavity drain plug (7, Figure E-2).
Remove the plug, and screw a short 1/4 inch NPT
nipple into the hole. Plug the open end of the nipple
with your finger. Tip the pump and drain off a small
amount of oil into a transparent cup, and stand the
pump up again. If the oil level is abnormally low, or
the color milky or dark, refer to Draining Oil From
Seal Cavity in this section for instructions and
troubleshooting tips. If the oil is clear, remove the
nipple, top off the seal cavity with oil, and reinstall
the level plug.
When lubricating a dry (overhauled) pump, posi­
tion the pump upright and fill the seal cavity until oil
reaches the bottom of the oil drain plug hole with
approximately 135 ounces (4 liters) of oil.
The grade of lubricant used is critical to the opera­
tion of this pump. Use premium quality hydraulic oil
as specified in Table E-2.
Table E-2. Pump Oil Specifications
Specifications:
Type Premium high viscosity index, anti‐wear hydraulic oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viscosity (SSU @ 104
_F [40_C])
110 to 155 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dielectric 26,000 (volts‐min) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acceptable alternate suppliers:
Gulf Oil Company Gulf Harmony AW Hydraulic Fluid MG 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Texas Oil Company Rando HD 32 or HD AZ 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sun Oil Company Sunvis 816 or 916 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BP (Also Boron) Energol‐HLP 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shell Oil Company Tellus 32, Tellus T‐23 or T32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viscosity (SSU @ 210
_F [100_C])
40 to 50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended supplier:
Gulf Oil Company Gulf Harmony 32 AW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ARCO Duro 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exxon (Also Esso) Nuto H 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Petro‐Canada Harmony HVI 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor Bearings
The motor bearings are permanently sealed and
no additional lubrication is required.