Goulds Pumps 3420 - IOM - Manual (Page 38)

THREE MONTH INSPECTIONS
•
Check foundation and hold-down bolts for tightness.
•
If the pump has been left idle, check the packing.
Replace, if required.
•
Oil should be changed every three months (2,000 hrs)
or more often if there are any adverse atmospheric
conditions or other conditions that may contaminate
or break-down the oil. Change the oil whenever it
appears cloudy or contaminated.
•
Check the shaft alignment. Re-align if required.
ANNUAL INSPECTIONS
•
Check the pump capacity, pressure, and power. If the
pump performance does not satisfy your process
requirements and your process requirements have not
changed, the pump should be disassembled,
inspected, and the worn parts replaced. Otherwise, a
system inspection should be done.
MAINTENANCE OF BEARINGS
!
Bearings must be lubricated properly in order to
prevent excess heat generation, sparks and
premature failure.
OIL LUBRICATED BEARINGS
s
! WARNING
Pumps are shipped without oil. Oil lubricated bearings
must be lubricated at the jobsite.
Change the oil after 200 hours for new bearings.
Thereafter, change the oil every 2,000 hours or three
months, whichever comes first.
Ring oil or flood oil lubricated anti-friction bearings are
standard on all model 3420 pumps. Oil lubricated pumps
are supplied with oilers which maintain a constant oil level
in the bearing housings. Each oiler should be installed and
the pump lubricated as follows:
1. Check the oiler adjustment prior to installing the oiler,
refer to Table 2 for the proper oiler setting.
2. Install one oiler in each bearing housing.
$
! CAUTION
Do not fill the bearing housings with oil through any
connection other than the oiler connection. This can
result in an improper oil level which may shorten the
life of the bearings and cause damage to the pump.
34
3420 IOM 8/09
Table 3
Bearings and Oil Requirements
Bearing
Arrangement
Group Sizes
Bearing Size
Oil Volume Required
(per each housing)
Thrust Radial mL pints
Flood Oil Ball Bearing
SX
12 x 14-15
7313 6313
thrust = 850 thrust = 1.80
16 x 18-17H radial = 580 radial = 1.23
MX 18 x 20-20 7316 6316
thrust = 1350 thrust = 2.85
radial 857 radial = 1.81
Ring Oil Ball Bearing
M
16 x 18-30
7321 6321 1170 2.47
18 x 20-30
20 x 24-24
20 x 24-30
M (modified) 20 x 24-28 7321 6321 1350 2.85
- 18 x 20-24 7318 6318 620 1.32
Ring Oil Roller Bearing
L 24 x 30-32 22226 1700 3.60
LDS
30 x 30-31
22228 1720 3.64
30 x 30-38
XL
30 x 36-42
20x30-42
22230 1350 2.85
XXL 36x42-52 22240 4350 9.2