Maintenance Procedure for the

HDBW

Heavy Duty Ball Winder (HDBW)

After three years of production and millions (our estimate) of yards of yarn wound into balls, we have learned that yarn fibers will tend to go into places that no one originally imagined. Because of this fact, we have developed a maintenance procedure for users of our ball winders that should be performed on a periodic basis as follows:

Maintenance Schedule

Yarns Shops and other Heavy Duty users*

Every 2 years

 

Medium Duty Users fall in between Heavy and Light Duty users

Every 3 years

 

Knitters at home and other Light Duty users

Every 5 years 

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*Heavy Duty users wind 10 or more balls per day every day, 50 weeks per year (2,500+ per year)

Light Duty users wind 10 - 15 balls per week (500 or

less balls per year)

Spindle O-ring - The rubber O-ring that surrounds the Spindle Flange should be replaced every few years. If a  visual inspection of the o-ring shows that it is cracked, then it should be replaced. Cracking mean that it has become less complaint and it will not flex as much as it should as the conical shaped shaft presses against it. SO, we recommend that every 3 years, the user should replace the o-ring. Users in drier environments such as the Southwestern USA may want to change it every 2 years.

Maintenance Details

What exactly needs to be done?

Although our ball winder is an enclosed mechanism, there are some openings that allow yarn fiber to penetrate. These fibers get inside the unit and find their way between the heavy duty gear teeth. Part of this is due to the static electricity that the fast spinning plastic gear creates combined with the grease that coats the gears. The gears themselves also force these fibers into the gear teeth crevices.

Over time, these fibers build up with the grease and start to fill in the gear teeth crevices until such time that there is no more room for the gear teeth to fit into. The result? A tightening of the gear assembly function.

What needs to be done?

The user must take the Ball Winder apart and clean these gear teeth out and lightly re-lubricate the gears.

This procedure will illustrate how this should be done.

What tools do you need?

• #2 Philips head screwdriver
• 1/8" Allen wrench
• A straight #2 (flat blade) screwdriver
• Optional: 5/16" nut driver and 1/4" nut driver
• White lithium grease
• Paper towels
• Rubbing (isopropyl) alcohol (from drug store)
• Small pointed (sharp) tool like an awl or a small screwdriver

How much time will it take?

• Experienced, unafraid person - 20-30 minutes
• Inexperienced or cautious person - 40-60 minutes

Much of the time depends on the level of debris that must be removed from the gears

Click on the photos to enlarge them.

Procedure to disassemble/maintenance the ball winder
Remove the handle with the Allen wrench and flip the unit over (on motorized units, remove the pulley).
Use 1/4" nut driver or straight screwdriver to remove the 4 hex head screws holding the base on.
Gently pull the base away from the main body and place to the side. Wiggle base to free it from main body.
Remove the Yarn Guide Post Arm by turning it back and forth as you pull it off of the shaft. It is a tight fit but it will come off (notice which side is which for later re-assembly).
Free the arm from the shaft and place to the side.
Look at the inside of the main body. Multiple gears and shafts are visible. You will return here shortly.
Use your 5/16" nut driver or straight screwdriver to loosen the 2 s hex head screws holding the clamp ring under the spindle arm.
Lift the spindle arm and spindle off of the unit.
Loosen the set screw in the shaft collar and remove the collar from the shaft. Note: do not lose the white washer, this must be re-installed with collar later.
Pull the torque tube up and off of the torque tube shaft. There is a small spur gear on the bottom. This is greasy, place on a paper towel.
Examine the gear teeth. Clean them with rubbing alcohol. Use your sharp tool to clear any debris including old grease from the gear teeth grooves. Apply a light coat of grease.
Look in the hole where the torque tube came out of. This is where the fiber gets into the unit. You will clean this later.
Flip unit over and remove the 3 Philips head screws.
The main body will start to separate. You need to gently pull it apart. Keep in mind that gear teeth are meshed inside so do not turn the halves and force them apart. PULL them apart instead.
Once apart, you can see the inside guts of the ball winder.
The main spur gear (2.25" diameter) is normally the gear that has the fiber and grease trapped in its grooves/. This cluster gear can be pulled off of its shaft. Be careful not to lose any white washers that are underneath this gear. These washers MUST go back where they were when re-assembling the unit.
Examine the grooves of the gears and clean them out but poking your sharp tool in the grooves. After cleaning both gears on this cluster gear assembly, then put a light coating of grease on the teeth.
We have had reports that some of the gunk in these grooves has to be picked out with the tool. Another good reason to go light on the re-lubing of the teeth. Use rubbing alcohol to clean all gear surfaces during cleaning phase.
Remove any excess grease from wood surfaces.
In the bottom half of the main body, there is a small bevel gear on the main crankshaft. Check this for debris and clean it as best that you can (it cannot be removed).
Turn the shaft with your fingers while the 2 halves are apart. Make sure it turns freely. The crankshaft rides on 2 special bearings inside  the wood. Notice their position. They should not be coming out of the wood. If they are, press them back inside and test the shaft again. If the shaft does not turn freely at this point, contact us.
Reassemble the unit (refer to earlier photos) Put the large gear back on the short shaft in the upper half of the main body (make sure the washers are underneath the large gear). Push the 2 halves of the main  body back together. Insert the 3 Philips head screws and tighten them. The hales of the main body should fit together tightly with no gap between them. Re-attach the Yarn Guide Post arm. Be sure that the large hole in the end is facing up toward the main body (this is where the 8" tall post goes into). Push the arm all the way onto this shaft. Attach the base (position the shaft into the hole in the top of the base while observing the position of the 4 mounting holes). Be sure these are lined up and then insert the 4 hex head screws. Tighten screws. Insert the torque tube assembly. There probably was a washer underneath it as well on top of the tube. Make sure these are in position. When mounting the collar on the torque tube shaft, leave a small (1/32") gap between the collar and the tube assembly. The tube must be able to rotate freely. Check the crankshaft for ease and smoothness of turning. If it does not turn easily, you may have to go back inside the unit  to investigate the cause. Otherwise, you are finished. If you still have difficulty turning the crankshaft please contact us.