Lincoln Electric LN-25 SVM114-C - Manual (Page 87)

TROUBLESHOOTING AND REPAIR F-49 F-49
LN-25™
7. R e m ove t h e t wo s c r ew s a n d l o ck wa s h e r s
holding the rear end plate to the gearbox and
remove the rear end plate. Remove the three
drive motor mounting screws, flat washers and
l o ck wa s h e r s ( o n e i s i n s i d e t h e g e a r b ox
housing). See Figure F.34.
8. C a r e f u l l y r e m ove t h e d r i ve m o t o r f r o m t h e
gearbox.
NOTE: To access Hall Effect Module for
a d j u s t m e n t o r r e p l a c e m e n t s e e Adjusting
Speed Sensor Module in the maintenance
section of this manual.
9. Install the replacement drive motor onto the
gearbox and secure with the three screws, flat
washers and lock washers. Install the rear end
plate, lock washers and screws.
10. Position the wire drive assembly inside the case
and secure to the bottom of the case with the
four bolts. Secure the electrode cable to the
conductor block with the 1/2" bolt. See Figure
F.32.
11. For codes 10148 and above, connect both in-
line connectors and position them behind the
mylar insulation. See Figure F.32. For codes
9812 and below, install the two armature leads
(539 and 541) and the three hall effect module
l e a d s ( 5 0 0 , 5 1 2 a n d 5 5 5 ) o n t o t h e c o n t r o l
board. See Figure F.33.
12. Install the control box cover and secure by
installing the screws previously removed.
13. Install the wire reel and retaining collar and
close the case door.
Retur
n
to
Section
TOC
Retur
n
to
Section
TOC
Retur
n
to
Section
TOC
Retur
n
to
Section
TOC
Retur
n
to
Master
TOC
Retur
n
to
Master
TOC
Retur
n
to
Master
TOC
Retur
n
to
Master
TOC
DRIVE MOTOR AND GEARBOX REPLACEMENT AND ACCESS TO
HALL EFFECT MODULE (continued)
539 541
512 555 500
G1757 G1757
FIGURE F.33. – CONTROL BOARD