Troubleshooting & repair – Lincoln Electric POWER MIG 255 SVM144-B User Manual
Page 94
POWER MIG 255
TROUBLESHOOTING & REPAIR
F-56
F-56
a. Loosen and remove the two nuts
and lock washers from the motor
mounting bracket using a 11/32 in.
open end wrench.
b. When the motor is free from the
mounting bracket, slide the motor
from the POWER MIG unit.
5. Install the replacement motor in the
reverse order of removal.
6. Install the fan blade and tighten the fan
blade clamp. Ensure the fan is in the
same position on the shaft as it was
prior to removal.
a. Spin the fan to be sure it is free to
rotate.
7. Reassemble the remaining compo-
nents in reverse order of removal.
PROCEDURE
1. Disconnect main input power to the
machine.
1. Remove the case side panels using a
3/8 in. nutdriver.
2. Disconnect the fan motor leads #352
and #352. See Figure F.18.
3. Remove the fan blade. Note the posi-
tion of the fan on the shaft for reassem-
bly.
a. Use a screwdriver to loosen the fan
blade clamp.
b. Slide the fan blade off the motor
shaft.
4. Remove the fan motor.
FIGURE F.18 — FAN MOTOR ASSEMBLY REMOVAL.
LEAD
#352
LEAD
#353
FAN
MOTOR
FAN
BLADE
FAN
BLADE
CLAMP
FAN MOTOR ASSEMBLY REMOVAL AND REPLACEMENT (continued)