Grizzly Grill Accessory T24631 User Manual

model t24631  
8" spiral cutterhead  
installation instructions  
For questions or help with this product contact Tech Support at (570) 546-9663 or [email protected]  
introduction  
The Model T24631 spiral cutterhead is designed  
to replace the straight-knife cutterhead on the  
Model G0656/G0656P 8" Jointer.  
inventory (figure 2)  
a. spiral Cutterhead w/inserts........................ 1  
b. Torx drivers T20 ........................................ 2  
c. Torx L-Wrenches T20 ................................ 2  
d. Flat head Torx screws T20 M6-1 x 15...... 3  
e. indexable Carbide inserts 14 x 14 x 2 ....... 5  
B
a
C
d
e
figure 1. T24631 spiral Cutterhead.  
it takes approximately one hour to install this  
cutterhead and re-adjust the jointer. The job con-  
sists of (1) removing the old cutterhead, (2) install-  
ing/shimming the new spiral cutterhead, and (3)  
re-adjusting the outfeed table to be even with the  
carbide inserts at TdC (top dead center).  
figure 2. spiral cutterhead inventory.  
items needed for installation  
Wrench 14mm ................................................... 1  
Wrench 17mm.................................................... 1  
socket driver 1/4".............................................. 1  
Precision straightedge ..................................... 1  
Feeler Gauge set (sizes not important) ............ 1  
Pulley Puller....................................................... 1  
Pair of heavy Leather Gloves ........................... 1  
rubber dead Blow hammer ............................. 1  
2x4 Wood Block 4" Long................................... 1  
note: We strongly recommend replacing the  
old cutterhead bearings during installation.  
specifications  
Length...............................................................8"  
diameter...........................................................3"  
number of spirals.............................................. 4  
number of inserts............................................ 40  
insert size ....................................14 x 14 x 2mm  
insert screw Thread size......................... M6-1.0  
shaft diameter (Long side)....................... 20mm  
shaft diameter (short side) .......................17mm  
Weight .......................................................18 lbs.  
recommended, but not required  
inch/Pound Torque Wrench............................... 1  
arbor Press ....................................................... 1  
Ball Bearing 6204zz.......................................... 1  
Ball Bearing 6203zz ......................................... 1  
CoPyriGhT © JULy, 2012 By GrizzLy indUsTriaL, inC.  
Warning: no portion of this manual may be reproduced in any shape  
or form Without the Written approval of grizzly industrial, inc.  
#Tr15167 PrinTed in China  
 
9. remove the bearings and bearing blocks  
from the cutterhead. There are numerous  
ways to do this, but avoid prying on them—  
they must be pulled off evenly and with care.  
if you are unsure about how to proceed, seek  
help from a mechanic/machinist, or numer-  
ous resources can be found on the internet.  
15. Using the straightedge and feeler gauge set,  
inspect the cutterhead parallelism with the  
outfeed table as shown in figure 7. With the  
straightedge in position, raise or lower the  
outfeed table until the cutterhead body (not  
the carbide insert) just touches the straight-  
edge.  
note: It is difficult to remove the bearings  
without damaging them. This is why we  
strongly recommend installing new bearings  
on the cutterhead—instead of trying to reuse  
the original ones and then repeating this pro-  
cedure again in the near future.  
Straightedge  
Outfeed Table  
10. install bearings in the bearing blocks, then  
install the bearing blocks on the cutterhead.  
To avoid damaging the new bearings or the  
cutterhead shaft, use a arbor press or have a  
mechanic/machinist install these for you.  
if neither of the above are acceptable options,  
install the bearings by gently tapping them  
with a block of wood and a rubber dead blow  
hammer. if you do this, take your time and  
make sure they install as evenly as possible.  
figure 7. Checking cutterhead parallelism.  
16. Move the straightedge to the other side to  
determine if one end of the cutterhead body  
is higher/lower than the other. (Place the  
feeler gauge between the cutterhead body  
and the straightedge to determine the height  
difference.)  
11. re-install the key onto the keyway, then press  
the pulley onto the new cutterhead shaft.  
12. re-install the bearing block studs onto the  
if the cutterhead is even or within 0.004"  
with the outfeed table from one side to the  
other, skip to step 19.  
bearing blocks.  
13. install the cutterhead (figure 6) with the lock  
washers and hex nuts previously removed.  
if the cutterhead is over 0.004" from one  
side to the other, go to step 17.  
17. Loosen the hex nuts securing both bearing  
block studs, lift the spiral cutterhead slightly,  
then place a shim beneath the bearing block  
that needs to be adjusted.  
note: Use the shims from your old cutterhead  
if available. If not available, newspaper is  
approximately 0.003" thick and will work for  
shimming (we don't recommend shimming  
more than 0.004" on either side, as this may  
affect how the bearing block seats in the cast-  
ing).  
figure 6. example of spiral cutterhead installed.  
18. repeat steps 15–17 and adjust if necessary,  
then tighten the hex nuts on the bearing block  
studs.  
14. Tighten the spiral cutterhead in place, and  
ensure both pulley setscrews are tight.  
-3-  
T24631 6" spiral Cutterhead  
 
19. Place a straightedge on the outfeed table  
so it extends over the cutterhead, and rotate  
the cutterhead pulley until one of the carbide  
inserts is at top-dead-center (TdC), as shown  
in figures 8 & 9.  
rotating inserts  
The cutterhead is equipped with 40 indexable car-  
bide inserts. each insert can be rotated to reveal  
any one of its four cutting edges. Therefore, if one  
cutting edge becomes dull or damaged, simply  
rotate it clockwise 90˚ to reveal a fresh cutting  
edge (figure 10).  
Top Dead  
Center  
reference dot  
figure 8. Cutterhead insert at top-dead-center.  
figure 10. rotating indexable carbide inserts.  
Straightedge  
in addition, each insert has a reference dot on  
one corner. as the insert is rotated, the reference  
dot location can be used as an indicator of which  
edges are used and which are new. The insert  
must be replaced when all four edges are dull.  
Outfeed  
Infeed  
installing or adjusting a carbide cutter:  
1. disConneCT JoinTer FroM PoWer!  
figure 9. setting outfeed table height.  
When correctly set, the carbide insert will just  
touch the straightedge when the insert is at  
its highest point of rotation (figure 9).  
2. remove any sawdust from the head of the  
carbide insert Torx screw.  
if your outfeed table is correctly set, no  
adjustments are necessary.  
3. remove the Torx screw and carbide insert.  
4. Clean all dust and dirt off the insert and the  
cutterhead pocket from which the insert was  
removed, and replace the insert so a fresh,  
sharp edge is facing outward.  
if the insert lifts the straightedge off the  
table or the table is below the straight-  
edge, adjust the outfeed table height with  
the handwheel until the straightedge just  
touches an insert at its highest point of  
rotation.  
note: Proper cleaning is critical to achieving  
a smooth finish. Dirt or dust trapped between  
the insert and cutterhead will slightly raise the  
insert, and make noticeable marks on your  
workpieces the next time you cut.  
20. Lock the outfeed table, then re-install the  
fence.  
21. install the cutterhead guard back over the  
cutterhead, making sure that the spring ten-  
sion in the guard is properly set so the guard  
springs back over the cutterhead when it is  
pulled back and released.  
5. Lubricate the Torx screw threads with a  
light machine oil, wipe the excess oil off the  
threads, and torque the Torx screw to 48-50  
inCh pounds.  
note: Excess oil may squeeze between the  
insert and cutterhead or in the screw hole,  
thereby lifting the insert or screw slightly and  
affecting workpiece finishes.  
22. re-adjust the infeed table.  
-4-  
T24631 6" spiral Cutterhead  
 
g9644—12" precision straightedge  
h2675—16" precision straightedge  
if you don't have a good straightedge for preci-  
sion setup work, order one from us. These grade  
00 heavy-duty stainless steel straightedges are  
manufactured to din874 standards for profes-  
sional results in setup and inspection work.  
accessories  
t21348—10 pack of indexable carbide inserts  
replacement carbide inserts for T24631  
cutterhead.  
figure 14. Precision straightedges.  
g9615—15-pc feeler gauge set  
figure 11. T21348 indexable Carbide inserts.  
This 312" long Feeler Gauge set provides a quick  
and accurate method of determining gap widths.  
includes: .002", .003", .004", .005", .006", .008",  
.011", .012", .013", .014", .016", .018", .020", .022"  
and .025" blade thickness.  
g8995—4" heavy duty pulley puller  
indispensable for pulling gears or pulleys off of  
press-fit shafts. Can be used in either a 2 or 3 jaw  
configuration. The 4" jaw fingers are also revers-  
ible so they can grab an outside or inside diam-  
eter. The forcing screw has a live center and is  
made of tough hardened steel. Keep one of these  
handy in your tool box.  
figure 15. example feeler gauge set.  
p6204zz—ball bearing 6204zz  
p6203zz—ball bearing 6203zz  
replacement bearings available from Grizzly  
Parts department.  
figure 12. G8995 4" heavy duty Pulley Puller.  
h7830—2 ton arbor press  
figure 13. h7830 arbor Press.  
figure 16. Ball bearing.  
-5-  
T24631 6" spiral Cutterhead  
 
t24631 parts breakdown and list  
4
1
2
3
REF PART #  
DESCRIPTION  
1
2
3
4
P0452Z001  
P0452Z002  
PFH35M  
DRIVER BIT TORX T20  
INDEXABLE INSERT 14 x 14 x 2  
FLAT HD TORX SCR T20 M6-1 X 15  
L-WRENCH TORX T20  
P0452Z009  
-6-  
T24631 6" spiral Cutterhead  
 

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