11
5.2 TROUBLE SHOOTING
Table 1 is used to assist in locating problems and making minor repairs and corrections in the field. In
some problems similar defects can be produced by several causes of entirely different nature. Cause
of the trouble must be determined and the correction made.
TABLE 1 TROUBLE SHOOTING (refer to figures 6 thru 10)
Trouble
Possible cause
Correction.
Printing crank turns hard.
Burrs on reset gears or teeth
are damaged.
Figure 8.
Check reset gear group.
Replace defective gears.
Printing crank binds.
Bent ticket tray actuating pin.
Figure 9.
Straighten or replace the pin.
Printing crank fails to stop after
making one complete turn
One-turn stop pawl may be
bent. Spring may be missing.
Figure 7.
Straigthen pawl or replace
spring.
Printing crank binds at one area
of reset cycle.
Printing arm cam groove pin not
seated properly.
Figure 6.
Seat the groove pin properly.
Reset shaft jams.
Reset gears may be out of time. Check reset gears and time as
required. See Section 6
Wheels fail to reset to zero.
Spring missing from wheel pawl
or broken pawl.
Replace defective wheel. See
Section 6.
Input shaft binds when turned
by hand.
Bent transfer pinion shaft.
Figure 10.
Replace transfer pinion shaft.
Pin shears on meter or drive
coupling.
Groove pin not seated flush on
drive pinion. Bits of ticket in the
gearing.
Seat the groove pin flush with
the pinion. Clean out ticket bits
from the gears.
Weak or unclear print image.
Bits of torn tickets are
interferring
with wheel figures.
Clean dirt out of wheels and
figures.
Trouble
Possible cause
Correction
Print on ticket not legible.
1. Worn printing arm cushion.
Figure 6.
1. Replace printing arm
cushion.
2. Weak printing arm spring.
Figure 7
2. Replace printing arm spring.
3. Bent rebound plate that does
not give proper spring.
3. Replace rebound plate.
Prints zeros after delivery or for
each imprint.
Out of time
Retime the unit.
See Section 6.
Double stamping or ghosting.
Weak rebound plate spring.
Replace rebound plate spring.
Print out of position.
Mispositioned ticket.
Adjust ticket tray guides and
stop.
Paragraph C.
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