Rotate & Tilt Alignment

 

The purpose of this section is to relay a procedure on the adjustment of the tilt and rotate alignment system.

 

Under normal wear, the following procedure has proven successful for the past decade.

 

If there is a problem being experienced with alignment, it is advisable to start adjustments with the gear train.

 

Before starting adjustments rotate (horizontal) alignment, a preliminary adjustment of the rotate link (123-15) should be made. Adjust rotate link buckel (123-16) so there is an equal amount of threads on each side of buckel.

 

The adjustment of the rotate system has to be made in the upper case position. This has to be done because the detenting of the upper case and the lower case should be the same.

The adjustment of the shift motion by the stop screw (85-26) controls the rotate detenting of the lower case - the stop screw is adjusted to match lower case detenting to upper case detenting.

There is no way to adjust the upper case to match the lower case; therefore the machine is adjusted in upper case.

 

If a machine is having problems with the alignment or detenting, it is also advisable to perform the adjustments in the cycle clutch and shift section prior to advancing.

 

The following section has been included to give you a better explanation of the adjustments required for ROTATE, TILT and TIMING.

 

INTERPOSER STOP LUGS & SELECTOR LATCH LINKS

 

When the filter shaft contacts the interposer (55), the transfer of that motion is for the operation of the selector latches (40-26).

It is good practice to have maximum overlap of the selector latches (40-26) over the bail (51-27).

 

A good method to check for lost motion is to lay your finger on each latch, in turn, while picking up on each corresponding latch bail with a spring hook. When you pick up on the latch bails, the selector latch should move simultaneously.

 

SELECTOR LATCHES

 

The selector latches (125-28) should fall under the bail (51-27) as the cycle clutch check pawl (124-20) resets. Also, the negative 5 latch (72-41) should reset over the negative adjusting screw (72-42) as the cycle clutch check pawl resets (124-20).

 

The ideal situation is to adjust the stop pads (40-25) up and down so the latches fall under the bail (51-27) at the same precise time the cycle clutch check pawl resets (124-20). It is not likely for this to happen, so if the latches (125-28) reset before the cycle clutch check pawl, this is acceptable.

 

The stop latch pads, which are the upper limits for the latches, are adjusted up and down, by forming, using a screwdriver and hammer.

 

NEGATIVE 5 BAIL & STOP SCREW

 

When the cycle clutch shaft (1) is in the rest position, the negative 5 latch bail (125-29) is held down by the negative cam (124-18) and not the negative 5 latch (72-41). When the stop screw is adjusted, it should allow the negative 5 latch to reset over the stop screw. When the cycle shaft is at rest, there should be minimum clearance between the negative 5 latch (72-41) and the negative 5 latch screw (72-42).

 

When the cycle shaft is rotated, the negative cam (124-18) allows the negative bail (72-27) to move upward until the negative 5 stop screw (72-42) contacts the negative 5 latch (72-41).

 

The greater distance the negative bail' has to move before it contacts the stop screw, the more it will effect rotate alignment.

 

ROTATE SPRING TENSION

 

The tension of the rotate spring (46-33) is a very important adjustment. If there is not enough tension in the rotate system, there may not be enough rotational torque to properly detent negative characters such as the x, m, and g.

 

The rotate spring tension should be approximately 2 pounds, measured with a spring gage.

 

To check rotate spring tension (46-33), do the following:

 

 1. Remove the typing element.

 

 2. Half cycle a lower case "m".

 The lower case "m" is used because the tension of the rotate system in that position is the least it will ever be.

 

 3. Attach the spring gage to the shift arm (126-30) and push the shift arm outward from the side frame. Slowly, allow the shift arm to return to the side frame; as the shift arm contacts the side frame the gage should measure approximately 2 pounds.

 

To increase the rotate spring tension, rotate the spring cage (46-33) clockwise.

 

To decrease the spring tension, rotate spring cage counterclockwise. In order to decrease the spring tension, you must release the spring cage detent (127-31) before rotating the cage counterclockwise.

 

TILT ALIGNMENT

 

There are two adjustments to be concerned about for tilt alignment. For the two adjustments, use the "Z" and "J" characters; using the "Z" and "J" gives a tilt 0 and a tilt 3 respectively, which are the extreme limits for tilt operation.

 

All that you are concerned about is that the "Z" and "J" detent the same, nothing else.

 

Adjustments:

 

 1. Half cycle the machine - engage tilt detent (37-3) with tilt ring (39-23)

 

 2. Remove detents (37-3) from engagement with tilt ring by pushing the detent actuating lever (38-44) to the left.

 

 3. Remove tilt ring play by pushing down on front of tilt ring.

 

 4. Slowly, let tilt detent (37-3) engage tilt ring (39-23) and observe where detent contacts tilt ring.

 

 5. Adjust tilt link (87-29) up and down for equal detenting of "Z" and "J".

 

 6. Adjust right hand pulley (88-27) so the tilt detent (37-3) enters the proper tooth on tilt ring (39-23) approximately 1/3 distance from the vertex.

 

TYPEHEAD HOMING

 

Typehead homing is nothing more then half cycling the machine to see if the rotate detent enters the proper tooth on the element.

 

Half cycle the letter "J", if the rotate detent (37-4). enters the proper tooth, the letter "J" will be facing the platen (130-30). No adjustment necessary.

 

If the detent enters the wrong tooth on the element, do the following:

 

1. Half cycle a letter "J".

 

2. Loosen the set screw for the rotate shaft - the set screw is under the carrier (43-30).

 

3. With your fingers, rotate the element so the "J" is facing the platen.

 

4. Release detent actuating lever to reengage detent with element.

 

5. Tighten the set screw (43-30) observing minimum end play of rotate shaft.

 

 Sometimes the rotate shaft is frozen and difficult to move when trying to reposition element to proper tooth - if this happens, tap the bottom of the rotate shaft lightly with a screwdriver and hammer.

 

BALANCE ARM

 

The adjustment of the balance arm (40-31) is to achieve proper balance in the differential system between positive and negative operations.

 

To adjust the balance arm, do the following:

 

 1. Depress and half cycle the letter "J" - observe the detenting, see where detent contacts element on negative slope.

 

 2. Depress the letter "B" - rotate the turning wheel until the cycle shaft starts to move - STOP!

 

 3. Pull out the negative 5 latch and continue the rotation of the turning wheel until the element is half cycled; a letter "T" should be facing the platen.

 

 4. Check detenting; the letter "T" and the cancelled "B" should detent the same. If they do not detent the same, do the following:

 

         Loosen balance arm locking screw and nut (40-31) - adjust balance arm left or right.

 

 To check- go back to 1.

 

ROTATE ARM MOTION

 

1. Depress the letter "M" and half cycle the machine. With the play removed in the negative direction, check where detent contacts the element tooth.

 

2. Depress the letter "W" and half cycle the machine. With the play removed in the negative direction, check where detent contacts the element tooth.

 

If the two characters "M" and "W" don't detent the same, adjust the stud (87-31) up and down until they do.

 

ROTATE LINK

 

After the adjustment of typehead homing, balance arm and rotate arm, check the detenting of characters W, O, M, and T - they should all detent the same. The point to understand, is that, it doesn't matter where the detent contacts the element; just so all the characters contact the element at the same point or they all detent the same.

 

After they are detenting the same - adjust the rotate link (123-15) with the rotate link turn buckel (123-16) until a half cycled letter "G" detents .015" down the negative slope. (Similiar to figure 131).

 

SHIFT MOTION

With machine in the lower case position, adjust the shift arm stop screw (85-26) so a half cycled "g" detents the same as a half cycled upper case "G".

 

FINE TIMING

 

To check fine timing:

 

1. Depress the letter "M" and slowly rotate the turning wheel until the detent (37-3) enters the tooth and starts to exit; when the detent exits the tooth it should gently touch the positive side of the tooth (132-32).

 

To adjust:

 

1. Loosen the print shaft gear (47-38).

 

2. Rotate the print shaft, top to rear or top to front to achieve the correct adjustment.