Craftsman 11312260 3/4 HP 3450 RPM Capacitor Start Motor Instructions Reprint

Operating Instructions - Page 4

For 11312260.

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_]B 'VOLT
LI_"@
MA:<E _URE _X SG_OU_<D_C
Figure 5 Figure 6
Figure 7
OiL HOLE OIL HOLE
5. The Black and Red motor leads are connected to the
quick connect tabs on terminal board. (See figure 4.)
NOTE: To reverse direction of rotation, inter°
change position of B!ock and Red motor leads.
WARNING: Do not change any of these con-
nections with current on.
6. This motor is equipped with a 3-prong connector plug
(Underwriters ' Laboratory approved) as a safety meas-
ure. The longest of the three prongs is connected to the
motor housing through the power cord. When the p_ug
is inserted into a properly grounded receptacle, the
user is protected from electrical shock, should the motor
insulation fail for any reason. When using on extension
cord, make sure it is also a 3-wire cable.
CAUTION: Many existing receptacle boxes do
not have provision for 3oprong plugs and for
this reason an adapter is included with the
motor. (This adapter is not used in Canada.) To
use the adapter, connect the grounding lead to
the box before operating motor (See figure 5).
7. The motor may be operated with a reversing switch
(9M2982 in catalog), provided connections are made as
shown in figure 6. The motor must come to a complete
stop before reversing can be accomplished. If motor
rotation does not correspond to switch notations, inter-
change switch leads 2 and 4_
LUBRICATION AND
1_ The sleeve bearings in both end shields of this motor
have been lubricated at the factory with correct lubri-
cant. No other part of the motor requires lubrication.
2. Re-Jubrlcate motor bearings occasionally at the oil hole
located near the rap of the hub on each end shield, (See
figure 7.1 Be sure to wipe off dirt or grit if present
around oil holes to prevent any possibility of foreign
materla[ contaminating the oil wicks that supply the
bearings with oil Use a good grade of medium weight
mineral oil, such as automobile engine oil SAE 20.
3. If disassembly of the motor is necessary, it should be
returned to your nearest Sears retail or mail-order store
in order to prevent voiding the guarantee.
NOTE: The speed of this motor cannot be
regulated or changed.
Every effort should be ma_e ra _revent foreign material
from entering the mo_: ..... _'_,_r_ied under condi-
tions likely to roerm_ , c_ , -._ of dust, dirt, or
waste within the maTo__, _ .;_ection should be
.made at frequent intervals, nccumuiations of dry dust
can usually be blown out successfully.
NOTE: Motors used on wood°working tools
are particularly susceptible to the accumulation
of sawdust and wood chips and should be
blown out, or 'Vacuumed- frequently to pre-
veto interference with normal motor ventilation
and proper operation of the centrifugafly-oper-
atec{ starting switch.
5,
Most motor troubles may be traced to .loose or incorrect
connections; to overloading; to reduced input voltage
which results when small size wires are usedin the supply
circuit, or when the supply circuit is very long. Always
check connections, load and supply circuit when the
motor foils to perform satisfactorily. Although the motor
is designed for operation on voltage and frequency
specified on motor nameplate, normal loads will be
handled safely on voltages not more than l@_'_ove
or below the nameplate voltage. Heavy loads, how-
ever, require that voltage at motor terminals be not
less than the voltage specified on nameplate.
6_
Common Causes of Low Voltage Are:
o. Overloadlng of house or shop circuits with lights,
e_ectricol appilances or other motors.
b, Undersized ,,vires in supply circuits or extension cords,
C_
General overloading of the power company's faciJb
ties. (In many sections of the country, demand for
electrical power exceeds the capacity of existing
generating and distribution systems. If it is suspected
that voltage being suppJled is Jew, request a voltage
check from the power company.)
7, Some Effects of Low Voltage Are:
a. Motor fails to develop full power. (The power out-
put of motor decreases rapidly with decrease in
voltage at motor terminals. For example: a reduction
of 10% in voltage causes a reduction of 19% in
maximum power output of which the motor is capable,
while a reduction of 20% in voltage causes a reduc-
tion of 36% 'n maximum power output.)
b. Motor starts slowly or fails to come up to full speed.
c. Motor overheats.
d. Motor burns out when operated for long periods of
time when overloaded.
Frequent opening of fuses or circuit breakers. (This
may also result if motor is overloaded, or if the
motor circui_ is fused with a fuse other tha_ those
recommended. Do not use a fuse of greater capacity
without consu ring the power cornpanyd
GUARANTEE
This Craftsman Motor was thoroughly inspected and
tested before shipment. Should it foil due to faulty material
or workmanship, we will repair or replace it, at our option,
free of charge if returned to your Sears retail or mail-order
store wlthln one year from date of purchase. This guar-
antee is void if the motor has been tampered with, misused
or abused, or if either end shield has been removed in the
process of servicing by anyone other than an authorized
serv :e station. External parts such as the terminal cover
may be removed or replaced without voiding the guarantee.
Form No. 2925 4