Miller Electric KC237900 - Manual (Page 13)

OM-530 Page 9
f. Connect lead 58 from preflow timer assembly to
terminal 58 on 1T.
ST-048 698-A
Pre-Flow
Assembly
Spot Time
Assembly
1/2 in.
(12.7 mm) Dia.
3/8 in.
(9.5 mm) Dia.
Figure 3-3. Front Panel Mounting Hole Layout
g. Remove jumper link 7 from terminals 89 and 90
on 2T.
h. Connect lead 89 from preflow timer assembly to
terminal 89 on 2T.
i. Connect lead 90 from preflow timer assembly to
terminal 90 on 2T.
j. Discard supplied leads 30, 37, and 58.
k. Tape or tie new leads together to maintain a
proper lead dress inside the unit.
l. Replace left side panel and top cover.
8. For Models Effective With Serial No. HK261770
Thru JA373510:
a. Remove jumper link 6 from terminals 58 and 59
on terminal strip 1T.
b. Connect lead 32 from preflow timer assembly to
terminal 32 on 1T.
c. Connect new lead 30 from preflow timer as-
sembly to terminal 30 on 2T.
d. Connect lead 37 from preflow timer assembly to
terminal 37 on 2T.
e. Connect lead 59 from preflow timer assembly to
terminal 59 on 1T.
f. Connect lead 58 from preflow timer assembly to
terminal 58 on 1T.
g. Disconnect lead 89, originating at CR1, from
terminal 89 on 2T.
h. Splice lead 89 (disconnected in Step g) to lead
90 originating at preflow timer switch S200.
i. Connect lead 89, originating at preflow timer
switch S200, to terminal 89 on 2T.
j. Discard supplied leads 30, 37, and 58.
k. Tape or tie new leads together to maintain a
proper lead dress inside the unit.
l. Replace left side panel and top cover.
9. For Models Prior to Serial No. HK261770:
a. Locate lead 32 between transformer T1 and in-
tegrated rectifier SR2. Splice lead 32, originat-
ing at the preflow circuit card, onto lead 32 be-
tween T1 and SR2.
b. Disconnect lead 30 from fuse F1.
c. Connect lead 30, originating at CR3, to F1
where lead 30 was removed in Step b.
d. Connect lead 30 disconnected in Step b to the
dual terminal friction connector on lead 30 at
F1.
e. If applicable, insulate leads 89 and 90 from pre-
flow timer assembly, and secure to wiring har-
ness.
f. For models with Electroslope proceed to Step
g. For all other models, isolate remaining wires
by taping ends and proceed to Step o.
g. Remove electroslope box cover.
IMPORTANT: This procedure is only applicable on
models with the proper electroslope. If questions arise,
contact the factory Service Department.
h. Locate terminal FF on electroslope circuit card.
Route supplied lead 30 through the grommet in
the electroslope box and connect it to terminal
FF on the electroslope circuit card. Connect re-
maining end of lead 30 to fuse F1 in addition to
existing leads 30.
i. Locate terminal GG on electroslope circuit
card. Route supplied lead 37 through the grom-
met in the electroslope box and connect it to ter-
minal GG on the electroslope circuit card. Con-
nect remaining end of lead 37 to preflow timer in
addition to existing lead 37.
j. Remove lead 59 from control relay CR2.
k. Splice lead 59, originating at the preflow circuit
card, to lead 59 that was removed from CR2.