5
7. After pipes have been connected to pump, check
alignment at drive coupling. Correct any changes with
metal shims as in section “C”.
8. Check motor nameplate for electrical characteristics.
Be sure they are the same as the rating of the electrical
power available. Connect power lines to motor in accord
with wiring diagram on the motor and test motor
rotation, should turn in the direction indicated by arrow
cast on pump casing.
9. Fill pump (and suction pipe) with water. Remove plug
(216) at top of casing (1) to relieve trapped air, then
replace plug. Close discharge gate valve and start
pump. When pump is up to speed, slowly open the
discharge valve to obtain desired capacity and pressure.
D - LUBRICATION
1. Pump bearings are properly fi lled with grease at the
factory before shipment. Periods of subsequent
lubrication depend somewhat on local conditions, loads,
speed, hours of operation, temperature, etc. Periodic
inspection of bearing lubrication should be made and
additional grease added as needed thru grease cups
(207) on the pump. A No. 2 grease (soft) is
recommended for most installations. Do Not over
grease as this causes high bearing temperatures and
shortens bearinglife.
2. Motor bearings should also have periodic attention and
lubrication in accord with motor manufacturers
recommendations. Under ordinary conditions a ball
bearing will run from 10° to 60°F (-12.2° to 15.6°C)
above surrounding temperatures. Unless bearing
temperature runs extremely hot do not become alarmed.
3. On standard-fi tted, bronze-fi tted and all-bronze
construction, the stuffi ng box is lubricated by liquid being
pumped, thru a by-pass tube. On all-iron construction,
the by-pass tube is eliminated and a grease cup installed
for stuffi ng box lubrication. A “water pump” grease is
recommended for the grease cup. If the liquid being
pumped is abrasive, a fresh water supply should be
connected to the stuffi ng box instead of the grease cup.
4. Single seals normally do not require grease lubrication
as they are lubricated and cooled by the liquid returned
to the seal chamber thru the by-pass tube.
5. Double seals should be cooled and lubricated by a
sealing liquid under pressure, such as clear water. If the
pressure at the inner face of the seal is constantly under
25 psi and the liquid temperature is under the boiling
point, or 212°F (100°C), a spring-loaded compression
type grease cup, fi lled with Standard Artic No. “O”
grease or equal, may be used if suitable sealing liquid is
not available.
GENERAL MAINTENANCE AND REPAIR
E - PROPER ADJUSTMENT OF IMPELLER
1. This pump features a locked bearing, therefore no
adjustment is required after pump leaves the factory.
F - PROPER ADJUSTMENT OF STUFFING BOX
1. The liquid being pumped should constantly, yet slowly
drip from the stuffi ng box gland (17) when the pump
is running. This slow drip keeps the shaft from becoming
scored. NEVER tighten the gland so as to entirely stop
leakage through stuffi ng box. It increases the power and
wears the shaft in a short time.
2. The split gland (17) can be taken apart. This facilitates
repacking the stuffi ng box. Access to the packing (13) is
obtained by removing the nuts from bolts (209) which
fasten the stuffi ng box gland to the stuffi ng box head.
Clean out the drip holes in the gland occasionally as they
may become clogged, especially with new packing. The
drip hole allows the sealing liquid to drip thru the gland,
instead of passing between the gland and the shaft.
3. Standard pumps are equipped with a circulation tube
(127) from discharge to the stuffi ng box lantern ring so
that the pump will not suck air in along the shaft when
the pump is operating on a suction lift. If the pump is to
operate with positive suction head, disconnect this tube,
plug the holes concerned and run the pump with the
stuffi ng box gland as loose as possible to avoid
excessive shaft wear through the stuffi ng box.
G - GENERAL REPAIRS
Whenever it is necessary to dismantle the pump for repairs,
it should be removed from the sub-base. Disconnect the
suction and discharge pipes and remove the four cap
screws holding pump to sub-base. Drain pump by removing
drain plug in the bottom of the pump casing (1).
CLEAN AND INSPECT ALL PARTS
Extreme care should be exercised in keeping the parts
clean. Special precautions should be taken to keep ball
bearings dirt-free while in or out of the pump. The dirt will
damage the ball bearings, thus shortenting the trouble-free
service life of the pump.
Any part which is excessively worn or deteriorated should
be replaced with new parts from factory.
When ordering repairs refer to the illustrations for part
names and the pump name plate on which is stamped
the fi gure number, size and serial number. Without this
information we cannot identify the pump and parts in
question.
