Viking Platinum 16 User's Guide download pdf (Page 20)

Page 20

Loosen Top Thread Tension

To loosen the tension, turn the top thread tension knob

(page 10, Figure 1, #5) counter-clockwise.

NOTE: Before adjusting the top tension, remember to oss

or pull the top thread up into the tension discs or it will oat

outside the discs providing little or no top tension. This could

cause signicant tension or nesting problems on the bottom

side of the quilt. If the top tension is too loose (causing loops

of thread on the underside of the quilt) and no amount of

tightening the top thread tension knob seems to affect it, there’s

a good chance that the thread is riding on the outside of the

tension discs and is not “ossed” between them.

NOTE: Turn off the machine and remove the power cord when

performing maintenance on the machine.

Cleaning and Lubricating the Machine

Only use light sewing machine oil in the

PLATINUM™16 quilting machine. Internal oiling is not

necessary on the PLATINUM™16 quilting machine

except when the machine is taken to a service

technician for routine maintenance and cleaning. The

hook assembly, however, needs regular lubricating.

Failure to keep the hook assembly lubricated can cause

severe damage to the machine.

Maintenance

Figure 16

To lubricate, turn off the machine. Remove the bobbin

and case before oiling. Clean around the hook assembly

with a soft brush to remove lint. Put a very small drop

of oil on the hook in the region where the bobbin

basket assembly and the rotating hook meet (see Figure

17). The bobbin basket is the portion of the hook

that the bobbin case snaps into. The bobbin basket

remains stationary while the hook rotates around the

basket. The oil lubricates the region where these two

components interlock. A drop of oil in the region

indicated will work its way back into the interlocking

area of the hook and bobbin basket.

The frequency of lubrication depends upon the usage

of the machine. Lubricating is recommended before

running the machine if it has not been used regularly,

or every other bobbin change if used frequently. After

oiling, always stitch through a scrap piece of fabric, as

oil may cling to thread. Over-oiling can cause excess

dripping from the bobbin assembly. Lack of lubricant

may be noticed by a change in the sound of the

machine and will affect stitch quality.

Cleaning the Touch-Screen Display

Use a soft rag dampened with isopropyl alcohol to

gently wipe the display and remove any marks. Never use

any other chemicals to clean your display as they may

adversely affect the touch-screen response and clarity.

Having set the bobbin thread tension properly, and the

top thread looks like Diagram A:

Problem: The top thread is too tight.

Solution: Loosen the top thread tension discs.

Having set the bobbin thread tension properly, and the

top thread looks like DiagramB:

Problem: The top thread is too loose.

Solution: Loosen the top thread tension discs.

Diagram A

Diagram B

Tight Top Thread

Loose Top Thread

A stitch is balanced when the

top thread and the bobbin

thread meet in the middle of

the quilt sandwich.

Figure 17

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Viking Platinum 16 User's Guide Page 20

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