Goulds Pumps 3501 Mixer - IOM - Manual (Page 30)

MAINTENANCE OF BEARINGS
OIL LUBRICATED BEARINGS
Oil lubricated bearings must be lubricated at the job site.
Remove fill plug (408H) and add oil until level is at the
center of the sight glass (319). Replace fill plug (Fig. 21).
Change the oil after 200 hours for new bearings,
thereafter every 2000 operating hours or 3 months
(whichever comes first). Change more often if oil
becomes contaminated with dirt or water. Oil change
volumes are per
Table 3.
Table 3
Oil Volumes
Frame Liters Quarts
M 2 2.1
L 2 2.1
XL 3 3.2
A high quality turbine oil with rust and oxidation
inhibitors should be used. For the majority of operational
conditions, bearing temperatures will run between 60°C
(140°F) and 82°C (180°F). In this range, an oil of ISO
viscosity grade 68 at 40°C (105°F) is recommended. If
bearing temperatures exceed 82°C (180°F), use of ISO
viscosity grade 100 is recommended.
Table 4
Lubricating Oil Requirements
Bearing
temperature
below
82°C (180° F)
Bearing
temperature
above 82°C
(180° F)
ISO Grade VG 68 VG 100
Approx. SSU at
38°C (100°F)
300 470
DIN 51517 C68 C100
Kinematic viscosity at
40°C (105°F) mm 2 /sec
68 100
Acceptable Oils
Exxon Teresstic EP 68
Chevron GTS Oil 68
Mobil Mobil DTE 26 300 SSU
@ 38°C (100°F)
Gulf Gulf Harmony 68
Phillips Mangus Oil Grade 315
Phillips MM motor oil SAE 20-20W
Phillips HDS motor oil SAE 20-20W
If the constant level oiler option is supplied, it was
adjusted before leaving the factory (See
Operations
Section for details). Fill the outer bottle with oil and
replace in the oiler housing. Oil reservoir in bearing
frame is filled when oil remains visible in the bottle.
Several fillings of the bottle may be required.
26 3501 IOM 11/10
Fig. 21