ST1013 12" Jointer (Mfd. Since 3/16)
-41-
Pulley Alignment
Pulley alignment is another important factor in power
transmission and belt life. The pulleys should be par-
allel to each other and in the same plane (coplanar)
for optimum performance.
Each pulley can be adjusted by loosening the motor
mount bolts, sliding the motor in or out, and retight-
ening the fasteners to lock the motor pulley in place.
To align pulleys:
1. DISCONNECT MACHINE FROM POWER!
2. Open pulley cover and remove belt guard.
3. Visually check alignment of the two pulleys to
make sure they are aligned and that V-belts are
straight up and down (see Figure 62).
— If pulleys are aligned, go to Step 7.
— If pulleys are NOT aligned, do Steps 4–6.
Figure 62. Pulleys aligned.
Set Screws
Cutterhead
Pulley
Set Screws
Motor
Pulley
Bearing
Block
Cutterhead
4. Loosen fasteners that hold motor to brackets
(see Figure 63).
Figure 63. Motor mount fasteners for adjusting
pulley alignment.
5. Shift motor horizontally as needed to align
motor pulley with cutterhead pulley.
6. Tighten fasteners that hold motor to brackets.
V-belts should be parallel and aligned as shown
in Figure 62.
7. Close pulley cover and re-install belt guard.
Fasteners
