IBM 39M5657 User Guide - Page 79

counterclockwise.

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2 8 1 3 7 6 5 9 4 a82ru009 Figure 28. Drive with cover removed to reveal gear train. 1 Loader motor worm gear 6 Threader mechanism gear 2 Cartridge loader tray guide bearing 7 Lever 3 Rotator stub 8 Loader mechanism gear 4 Threader motor worm gear 9 Threader worm gear 5 Threader intermediate gear __ Step 6. As the tape leader block assembly (LBA) is secured in the cartridge, you should hear the LBA retention spring clips click into place. If you do not hear the click, continue rolling until the threader motor worm gear 4 stops. The LBA is in the correct position. Note: Be sure to keep tension on the tape as the LBA is drawn into the cartridge by using a hex wrench. __ Step 7. Notice the: a. Loader mechanism gear 6 nearest the front of the drive that actuates the cartridge loader mechanism. b. Position of the rotate stub 3 . c. Front loader motor worm gear 1 . Rotating this gear allows the loader mechanism gear 8 to turn. __ Step 8. Rotate the loader motor worm gear 1 to turn the threader mechanism gear 6 counterclockwise. Continue turning until the rotator stub 3 loses contact with the lever 7 . This releases the LBA leader pin. Using Ultrium Media 63

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±1²
Loader
motor
worm
gear
±6²
Threader
mechanism
gear
±2²
Cartridge
loader
tray
guide
bearing
±7²
Lever
±3²
Rotator
stub
±8²
Loader
mechanism
gear
±4²
Threader
motor
worm
gear
±9²
Threader
worm
gear
±5²
Threader
intermediate
gear
__
Step
6.
As
the
tape
leader
block
assembly
(LBA)
is
secured
in
the
cartridge,
you
should
hear
the
LBA
retention
spring
clips
click
into
place.
If
you
do
not
hear
the
click,
continue
rolling
until
the
threader
motor
worm
gear
±4²
stops.
The
LBA
is
in
the
correct
position.
Note:
Be
sure
to
keep
tension
on
the
tape
as
the
LBA
is
drawn
into
the
cartridge
by
using
a
hex
wrench.
__
Step
7.
Notice
the:
a.
Loader
mechanism
gear
±6²
nearest
the
front
of
the
drive
that
actuates
the
cartridge
loader
mechanism.
b.
Position
of
the
rotate
stub
±3²
.
c.
Front
loader
motor
worm
gear
±1²
.
Rotating
this
gear
allows
the
loader
mechanism
gear
±8²
to
turn.
__
Step
8.
Rotate
the
loader
motor
worm
gear
±1²
to
turn
the
threader
mechanism
gear
±6²
counterclockwise.
Continue
turning
until
the
rotator
stub
±3²
loses
contact
with
the
lever
±7²
.
This
releases
the
LBA
leader
pin.
a82ru009
1
2
3
4
5
6
7
8
9
Figure
28.
Drive
with
cover
removed
to
reveal
gear
train.
Using
Ultrium
Media
63