Powermatic PM2014, Operating Instructions And Parts Manual

 15 

5.  Loosen pivot lock handle (L, Figure 8-9) and 

lower motor to tension belt. Be sure that V-
grooves of belt seat properly in corresponding 
grooves of sheave. Do not overtension; a very 
light pressure on the tension handle (M) is 
adequate to prevent belt slippage. 

6.  Tighten pivot lock handle (L). 

Figure 8-8  

8.9

  Sheave and belt alignment 

1.  The motor and spindle sheaves are aligned by 

the manufacturer, but if any service is 
performed that affects their alignment it is very 
important that they be realigned. To realign 
them, loosen two set screws on spindle sheave 
(one is shown at N, Figure 8-9) with a hex key, 
and nudge spindle sheave into proper position. 
Retighten both set screws.  

2.  When sheaves and belt are properly aligned, 

there should be no unusual pulsing sounds or 
noise coming from the belt. 

Figure 8-9:  sheave/belt alignment 

8.10

  Sheave/drive belt replacement 

IMPORTANT:

 Replacing spindle sheave or belt can 

be a challenging procedure. If you do not feel 
confident performing this action, take the headstock 
to an authorized Powermatic service center. 

1. Disconnect 

lathe 

from power source. 

2.  Loosen lock handle (L, Figure 8-9) and lift 

handle (M) to raise motor.  

3.  Tighten lock handle (L) to hold motor in raised 

position. Slip belt off lower pulley. 

4.  Loosen two set screws on handwheel (P, Figure 

8-9) with a 3mm hex wrench, and unscrew 
handwheel off spindle (NOTE: Left-hand 
threads; rotate clockwise to loosen). 

5.  Tap left end of spindle with a rubber mallet, or a 

steel face hammer against a block of wood, to 
push it to the right, just enough to remove 
sheave or belt. (

Never

 use a steel face hammer 

directly against spindle.) Prevent the top 
sheave from being forced into the 
sensor/encoder assembly; if necessary loosen 
sheave set screws and slide it to the left. 

6.  If replacing sheave, loosen two set screws (N, 

Figure 8-9), and slide sheave off spindle. Install 
new sheave, 

loosely

 securing the two set 

screws at first. Make sure the sheave is 
oriented properly. 

7.  Push spindle back into place. Make sure the 

sensor collar is positioned over the sensor for 
the digital readout to function.   

8.  Check for any spindle play or “runout” at this 

point. If it exists, see 

sect. 13.0

. 

9.  Reinstall handwheel and tighten set screws (P, 

Figure 8-9).  

10. Align new sheave (see 

sect. 8.9) 

then tighten 

two set screws (N, Figure 8-9) securely on 
sheave. 

11. Loosen lock handle (L) and allow motor to 

lower. Do not over-tension; a very light pressure 
on tension handle (M) is adequate to prevent 
belt slippage. 

12.  Tighten lock handle (L).