Manual Controls: Adjustment - IBM 1403 Field Engineering Maintenance Manual

Lock Lever
Figure 4. Translator Frame Lock Lever
Manual Controls: Adjustment
Translator Lock-Lever
The lever must operate with a positive locking action
when a force of four to seven pounds is applied at the
center of the knob and perpendicular to the handle.
Adjust as follows (Figure 4):
1. Loosen the translating-frame gib locknut.
2. Loosen the frame locking setscrew for gib-to-tie-bar
clearance.
3. Lower the lock lever to the fully-locked position
and recheck for gib-to-tie-bar clearance.
4. Press the locking mechanism to the rear of the
machine while holding the locking roller squarely
against the tie bar.
5. Turn the frame locking setscrew finger tight.
Note: Make sure the locknut is not against the lock block.
6. Tighten the setscrew 90 0 to 150 0
•
7. Tighten the locknut.
Translator Vernier Knob
Set the vernier to provide a movement of
~"
(± J{l').
1. Clamp the translator vernier knob against the
shoulder of the vernier screw (Figure 5).
2. Position the right retaining collar against the knob,
and clamp the collar to the vernier screw.
3. Position the left retaining collar so that a total end
play of .0005" to .002" exists between the two col-
lars and the translator-lock lever, and clamp the
collar to the vernier screw.
Note: On late machines, the left collar is pinned. Adjust
this clearance by using the right collar.
4. Tighten the setscrews in the translator-frame bear-
ing to provide a slight drag on the vernier screw.
Locking Roller Tie Bar
Setscrew
Gib
Apply Loctite* sealant to the setscrew threads if
this adjustment is made.
Vertical Print-Alignment Knob
1. Position the eccentric shaft (Figure 6).
a. The slot in the right end should be parallel with
the slot in the sector-gear hub, within
"44".
b. Further adjustments may require that this be
altered.
2. Position each ball-detent barrel to the periphery of
the sector gear:
a. For clearance throughout full gear rotation.
b. For maximum clearance of .008".
Note: When installing a new ball-detent barrel, insert
the new barrel from the sector-gear side of the mounting
block. This method avoids stripping off too much locking
material on initial installation.
*Loctite is a product of the American Sealant Company
Translator Frame
Figure 5. Translator Vemier
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Translato~((l;;)
Lock Lever
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Coilo, / "
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Translator
Vernier Knob
11