South Bend Tools
For Machines Mfd. Since 12/20
Model SB1108/SB1109
-39-
S E R V I C E
A & B
Infeed
Roller
Outfeed
Roller
Pressure
Bar
Chip
Breaker
C
D
BDC
(Bottom Dead Center)
Figure 50. Planer component recommended
clearances.
Dist. Below Cutterhead Insert at BDC (Figure 50)
A.
Infeed Roller ...........................................0.040"
B.
Chip Breaker ..........................................0.040"
C.
Pressure Bar ...........................................0.008"
D.
Outfeed Roller ........................................0.020"
It is essential that the feed rollers, chip
breaker, and pressure bar are set at the correct
distance below the cutterhead knives/inserts
at BDC (bottom dead center) to ensure that the
workpiece moves through the planer evenly and
the correct distance from the cutterhead knives/
inserts.
To ensure accurate results and make the
adjustment process quicker and easier, we
recommend using a Rotacator for these
adjustments (refer to Page 32).
If a Rotacator is not available, a 6' 2x4 cut into
two even-sized pieces and a feeler gauge set can
be used, but care must be taken when jointing
the wood to achieve accurate results and ensure
both boards have the exact same height.
Setting Feed Roller,
Chip Breaker &
Pressure Bar Heights
Setting Feed Roller, Chip Breaker
& Pressure Bar Heights
1.
DISCONNECT MACHINE FROM POWER!
2.
Make sure all inserts are properly installed
(refer to
Rotating/Replacing Cutterhead
Inserts on Page 30 for detailed
instructions).
3.
Lower table at least 4" below head casting,
then lock it in place.
4.
Remove dust hood, top cover, belt cover, and
drive chain cover.
5.
Using your Rotacator, find bottom dead
center (BDC) of any insert edge by
slowly rocking cutterhead pulley back
and forth, then set Rotacator dial to "0"
(see Figure 51).
6.
Move feed rate control knob to neutral
position to allow infeed roller to freely rotate.
To use a Rotacator to check/adjust heights:
Items Needed
Qty
Hex Wrenches 3mm, 5mm ............................. 1 Ea.
Wrench or Socket 10mm ................................ 1 Ea.
Rotacator (see Page 32) .......................................1
Using a Rotacator
Figure 51. Example of using a Rotacator to find BDC.
Insert at
BDC
Rotacator
Infeed
Roller
!
