Installation instructions

GEI-M1011A
To obtain optimum results, use Exxon POLYREX EM
(General Electric Specification D6A2C23) polyurea grease
should be used for relubrication, unless a special grease is
specified on the motor nameplate. The regreasing procedure
that follows must be followed for safe and effective
regreasing.
1. Run the motor until warm.
2. Stop the motor and disconnect is from
the power supply.
3. Clean dirt and debris from around the
inlet lubrication fitting and the grease relief plug.
4. Remove the relief plug and clear the
opening and relief tube of hardened grease. This may be
accomplished with a twisted wire brush or sturdy pipe
cleaner.
5. Insert brush into relief hole. While the
motor is still warm, add grease with a hand operated grease
gun until fresh grease appears on the end of the brush or
until grease has been added up to the amount listed in Table
4. Do not exceed recommended amounts listed in Table 4.
6. Leave the relief plug temporarily off.
Start the motor and run for 10 to 20 minutes to expel any
excess grease.
7. Stop the motor. Replace the relief plug.
8. Restart the motor and resume operation.
WARNING: Warranty may be voided
if internal maintenance or repairs are
not performed by an Authorized
General Electric Service Shop during
the warranty period.
TABLE 4
NUMBER OF GREASE GUN PUMPS
Number of Pumps Number of Pumps
Bearing Size on 16 Oz. Gun 24 Oz. Gun Bearing Size on 16 Oz. Gun 24 Oz. Gun
Motor Nameplate (Approx. 473 mL) (Approx. 710 mL) Motor Nameplate (Approx. 473 mL) (Approx. 710 mL)
6205 5 3 6312 40 27
6206 6 4 6314 50 35
6208 10 7 6315 65 45
6210 25 17 6316 60 40
6213 35 23 6318; NU 318 75 50
6217 65 45 6320; NU 320 95 65
6220 58 39 6321 153 102
6309 20 13 NU 324 246 164
6310 25 17
NOTE: A standard 10,000 PSI (68,950 kPa) 16 ounce (473 mL) grease gun delivers approximately
0.04 oz. (1.18 mL) of grease with each pump, and a 24 oz. (710 mL) gun delivers approximately 0.06
oz. (1.77 mL) of grease. The number of pumps listed represents approximately 20% of the total
grease cavity volume in the end shield.
CAUTION: Failure to observe the
foregoing instructions for regreasing
may result in grease leakage and/or
bearing damage. Excessive or too
frequent lubrication may damage the motor. To
avoid damage to equipment, bearings and
grease must be kept free of dirt.
Since this method of greasing anti-friction bearings tends to
purge the housing of used grease over a period of time,
removal of all grease should be required infrequently. A GE
Authorized Electric Motor Servicenter can clean the bearing
cavity and replace the bearings and grease when the motor is
removed from service for maintenance or reconditioning.
E. End-Play Adjustment
1. General
Most high thrust motors are designed to withstand only
momentary up thrust. This up thrust, which can exist for a
few seconds during starting, is taken by the guide bearing.
To prevent the thrust bearing from losing radial stability
during this time, the motor endplay is limited to a small
amount by adjustment of the motor shaft nut or by
shimming. This adjustment is made at the factory and need
not be disturbed on a new motor. However, should the motor
be diassembled for any reason, the adjustment must be made
during reassembly to avoid damaging the bearings or having
some rotating part rub against a stationary part. The
procedure depends upon the type of thrust bearing.
2. Lower Thrust Bearings – 182-449 Frames,
Grease Lubricated
Standard high thrust motors are designed to withstand only
momentary up thrust. This up thrust which can exist for a
few seconds during starting, is taken by the guide bearing.
To prevent the thrust bearing from losing radial stability
during this time, the motor endplay is limited to a few
thousandths of an inch by shims inserted in the housing
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