SATO TG308, Руководство по обслуживанию

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Section 7: Replacement Procedures
Page 7-12
TG3 Series Service Manual
7.7 REPLACING TORQUE LIMITER (RIBBON REWINDER), ONEWAY LIMITER AND
ONEWAY CLUTCH
1.
Before proceeding, switch off the printer and remove the main cover, left housing cover and the top left
housing cover to gain access to the internal (electrical and mechanism) hardware. Refer to
Section 7.1
Removal of Housing cover
for details.
2.
Follow
step 4
to
step 7
of
Section 7.5 Replacing Ribbon Feed Roller, Oneway Clutch and Torque
Limiter
to remove the
Ribbon frame
(8) and
Timing belt 60 S2M 254
(9) from the printer. Set all the parts
aside for reassemble.
3.
Remove the
Gear Pulley_M(54/54)
(10) from the
ribbon shaft
and replace as necessary.
4.
Remove the
E-ring
(11) from the
ribbon rewind spindle
and then remove the
Gear Pulley_K(83/83)
(12)
and replace as necessary.
5.
Remove the
Oneway Clutch
(13),
Torque Limiter
(14) and
Oneway Limiter
(15) from the
ribbon rewind
spindle
and replace them as necessary.
6.
Reverse the above procedures for reassembly.
7.
After replacement, adjust the ribbon tension according to the procedure in
Section 6.19 Adjusting Timing
Belt Tension
.
CAUTION:
A PROPERLY TENSIONED BELT WILL BE JUST ENOUGH TO PREVENT SLIPPAGE.
AN OVERLY TENSIONED BELT WILL EXCESSIVELY INCREASE DRAG ON THEIR
PULLEYS AND INCREASE COMPONENT WEAR.
4
8
5
6
4
6
7
7
7
9
5
5
3
14
15
12
13
10
11
Follow step 4 to step 7 of Section 7.5 Replac-
ing Ribbon Feed Roller, Oneway Clutch and
Torque Limiter
to remove the Ribbon frame
and Timing belt from the printer. Set all the
parts aside for reassemble.