FRIDEN STW - Page 51

6-150
FRIDEN
CALCULATING
MACHINE
CoO.,
ING.
Poge
51
SERVICE
PROELEMS
AND
WHAT
TO
CHECK
MODEL
STW
e.
Check
Segment
for
restoring
on
Zero
Latch
{,
Check
Selection
adjustments,
104
to
109
inclusive
g-
Broken
Pin
in
Pin
Board,
107
h.
Braken
ar
weak
Detent
Spring
in
Pin
Board,
107
i,
False
Transfer
due
to
Transfer
Pin
fail-
ing
to
restore
7.
ERRORS,
NEGATIVE
MULTIPLICATION:
a.
CheckMinus
Gate
Stops;Gate
may
be
hit-
ting
Transfer
Gears
and
causing
a
ialse
Transfer,
63,89,121
b,
Gycle
Lock
Pin
worn
or
out
of
adjustment,
54
c,
Add-Subtract
Gate
Control
Levers.
Plus
Lever
may
be
interfering,
116
d,
Counter
Adjustments.
Upper
Dials
may
be
correct,
BB
to
94
inclusive
8,
ERRORS,
REPEAT
MULTIPLICATION:
a.
Check
adjustment
of
Repeat
Lock,
134
b.
Adjustment
of
Repeat
Lock
Latch,
135
c.
Adjustment
of
Segment
Ring
Lock,
137
d.
Springs
‘
e. Binding parts
f,
Other
checks
for
Multiplication
Errors
9.
BRRORS,
UPPER
DIALS
ONLY:
a,
Check
Basic
Adjustments
for
addition
and
subtraction,
see
page
48
b.
Add
-
Subtract
Gate
Control
Levers
for
multiplication,
113
to
125
inclusive
c. Cycle Lock Pin, 54
d,
Carriage
Shift
timing,
10
e,
Carriage
failing
to
centralize
properly,
128
3
f.
Carriage
Adjustment,
too
tight
or
too
loose,
56
10. ERRORS, COUNTER ONLY:
a. Check all Counter Adjustments, 88 to 94
inclusive
b. Carriage Shift may be oscillating or nat
centralizing
c.
Counter
Blocking
Slide
Adjustment,
89
4. Dividend Tabulator Counter Blocking Slide
binding, 101
e. Multiplier Non-Entry Adjustment, 91
. Counter Oscillator Arm, loose Studs or
worn
Gam,
62
g. Carriage Shift Rack out of adjustment, 57
11. MULTIPLIER CLEAR, LOCK-UPS AND
FAILURE
TO
CLEAR
OUT
SEGMENTS:
a.
Lock-up
clearing
out
Repeat;
check
Lock
and
Latch
adjustments,
134,135
b. Spring 1131
c.
Adjustment
of
Repeat
Latch
Release
Bail,
135
da.
Adjustment
of
Unit
Shift
Rack,
111
e.
Timing
of
Unit
Shift
Shaft,
12
f. Timing of Reset Cam, 13
g-
Zero
Latches
binding
or
failing
to
latch,
broken
spring
h.
Taper
Pins,
Screws,
Springs,
etc.,
loose
or
distorted
12.
ERRORS,
MULTIPLIER
SELECTION:
a.
For
a9
error,
check
Zero
Latches
and
Multiplier
Clear
b.
For
underselection,
check
Setting
Levers
tor
sticking,
107
c.
Check
Setting
Pins
for
proper
positioning
before
Segment
Releases,
108
d.
Checkadjustment
of
Zero
Release
Lever,
108
e. Broken Pin, 107
f.
Weak
or
broken
Detent
Spring,
107
g-
Adjustment
of
Escapement
Bracket,
104
FRIDEN
SERVICE
doesn’t
COST
the
customer
anything
compared
to
the
DIVIDENDS
it
PAYS