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Since 1952

PHONE: (317) 898-0750  

Grinding and Polishing Machines in Indianapolis Indiana

When installing a new abrasive loading in a 16 brush head, it may be necessary to trim the ends of each strip

so the same amount of abrasive is extending beyond each brush. Most commercially available loadings are assembled so the ends extend the same distance from each brush when installed in a 32 brush head. Since a 16 brush head is of smaller diameter, the amount of abrasive extending beyond each brush will not be equal. A scissors or metal snips can be used for this.

 

ADJUSTMENTS:

When fresh abrasive is required, stop the Head and loosen the spindle nut only slightly, enough to allow

turning the cap plate in the direction opposite normal head rotation. The proper distance to turn this can best be

determined by experience, but as a starting suggestion, either place a pencil mark on the edge of the cap plate or

imagine you have a mark there. This mark should be moved approximately 1/4 inch. This will create slack in the loading. Tighten the spindle nut. Double check making sure it is locking the cap plate. When the machine is restarted, extension of abrasive will occur either from centrifugal force, or as soon as work pressure is applied.

 

BRUSH AND BRUSH HOLDER REPLACEMENT

Brushes can be changed by sliding the worn brush out of the channel shaped holder and inserting the new

replacement brush into the open end of the holder.

To replace the brush holders, it is first necessary to remove the screws holding the feet of the brush holder to

the back plate of the head. After the screws and worn holders have been removed and the new holder is set in position, replace the screws, making sure each screw has a lockwasher. There are two different lengths of screws, the feet on the side of the holder requiring 10-32 x 5/16” pan head screw and #10 lockwasher, and the feet on the back of the holder requiring 10-32 x 1/4” fillister head screw and #10 lockwasher.

 

WARNING:

When replacing the cap plate, always be sure the ends of each of the brush holders are within the lip of

the cap plate. It is very important to check the condition of the brush holders when replacing the abrasive loading.

if they show excessive wear they should be replaced. If a crack appears in the metal, the brush will eventually

fly out. This may cause serious injury.

 

 

 

 

 

 

 

Proper Holding of Workpiece

 

 

 

 

 

The work piece should never be held so the head can pull it from the hand. This can cause serious injury.

 

These heads must never be used on equipment not having adequate guards. To do so may lead to

serious injury.

 

* ALWAYS WEAR EYE, EAR & RESPIRATORY PROTECTION

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GRINDING AND POLISHING MACHINERY * 2801 TOBEY DRIVE INDIANAPOLIS, IN 46219

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Wolfhead & Vonnegut Sanding Heads

Wolfhead™ OPERATING & MAINTENANCE INSTRUCTIONS and PARTS LIST

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ABRASIVE LOADING:

The 32 brush and 16 brush heads use an

abrasive loading having strips of abrasive 16” long.

Four of these strips are held together with a cloth

loop. These four strips and the loop are called an

assembly. Some abrasive manufacturers include the

loop in their measurements and show a length of

19-3/8”.

 

One complete filling of a 32 brush head is

called loading. This consists of 8 assemblies.

The 16 brush head uses only 1/2 loading--or

4 assemblies.

 

INSTALLATION:

The abrasive loading may be installed in the

Head while the Head is mounted on a spindle, or

with the Head laying on a bench or table. Because of

interference from the guard that surrounds the head

when it is on the spindle, it may be easier to load

while off the spindle. With the cap plate removed,

(see photo 1) install each assembly with the cloth

loop over on of the pins of the cylinder pin and the

abrasive strips projecting between 4 adjacent brush holders and brushes (see photo 2).

 

The assemblies should be placed in the Head so that when the Head is rotating, the grain (abrasive side of the strips) will be making contact with the part that is to be sanded or polished. With all assemblies in place, you will have strips of abrasive extending beyond each brush tip approximately 12 inches (see photo 3).

 

The head should now be placed on the machine spindle, being careful when sliding it on that the cap plate does not become dislocated in relation to the pins and brush holders as described in photo 4. The spindle nut should now be replaced drawing it finger tight.

16 BRUSH and 32 BRUSH MODELS -- MANUAL FEED

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Option 1

Option 2

ADDITIONAL PARTS LIST

Wolfhead O&M 1 Wolfhead O&M 2 Wolfhead O&M 3 Wolfhead O&M 4

Replace the cap plate. DOUBLE CHECK TO MAKE SURE THE PINS OF THE CYLINDER PIN ASSYMBLY ENGAGE THE HOLES IN THE CAP PLATE ASSYMBLY, AND MAKING SURE THE ENDS OF ALL BRUSH HOLDERS

ARE ENCLOSED WITHIN THE LIP OF THE CAP PLATE

 

(see photo 4 -- arrow A s pointing to the ends of the brush holders that must be completely enclosed by the lip to which arrow B is pointing.)

With the head in position on the machine

spindle, use the wrenches provided to wind in the

abrasive by using on wrench to hold the hub and back

plate stationary while using the other wrench to turn

the hub and cap plate in the direction the head will

rotate when running (see photos 5 & 6). Wind until

approximately 1/2” to 3/4” of abrasive is left protruding

beyond the ends of the brushes. NOTE: If the cap plate

is turned opposite the direction the head will be rotating,

the spindle nut may come loose during use and

the abrasive unload.

 

Tighten the spindle nut making sure it is locking

the cap plate. It may be necessary to place a spacer

between the head and the nut to accomplish this. With

the head locked in place, jog it a couple times (turn on

and immediately off) and check it for run out.

 

When doing this, centrifugal force may cause

the abrasive strips to protrude slightly more than the

amount extended prior to running the head.

Wolfhead O&M 5 Wolfhead O&M 6
Wolfhead O&M 7
Wolfhead O&M 8

Wolfhead™ SPECIFICATIONS

Wolfhead O&M 11 Wolfhead O&M 12 Wolfhead O&M 13 Wolfhead O&M 14 Wolfhead O&M 15 Wolfhead O&M 16 Wolfhead O&M 18 Wolfhead O&M 17 Wolfhead O&M 9 Wolfhead O&M 10

32 Brush

16 Brush

32 Brush

Standard Trim

2” Width

32 Brush

Long Trim

 

16 Brush

Standard Trim

2” Width

16 Brush

Long Trim

HUB CHANGE

The hubs of the 16 brush heads are secured to

the cap plate and back plate with three screws. The only

tool needed to change these is a screw driver.

 

The hubs for the 32 brush heads are easily

changed, but it is almost essential that snap ring pliers

be used to remove and install the snap ring. Many shops

have these. If however, yoou do not have any, they are available from G&P.

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Wolfhead Brush

made in USA

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