Troubleshooting: Mechanical and Electrical Problems

Trouble

Uneven depth of cut side-to-side

Table adjustment difficult

Board thickness does not match depth of cut scale

Chain jumping

Machine will not start/restart or repeatedly trips circuit breaker or blows fuses.

Probable Cause

Remedy

 

 

 

 

Knife projection incorrect.

Adjust height of knives (see page 9).

 

 

Cutterhead not level with bed.

Level bed (see page 14).

 

 

Corner screw too tight.

Adjust corner screws.

 

 

Depth of cut scale incorrectly set.

Adjust depth of cut scale (see page

11).

 

 

 

Inadequate tension.

Adjust chain tension.

 

 

Springs on feed rollers compressed

Adjust roller height/spring tension to

allow more movement of spring (see

too tightly.

pages 12-13).

 

 

 

Sprockets are misaligned.

Align sprockets.

 

 

Sprockets worn.

Replace sprockets.

 

 

Unit not plugged in.

Verify unit is connected to power.

 

 

Hood not in down position.

Place hood in down position to

engage interlock switch.

 

 

 

 

Check to determine if switch is

 

actuating by listening for the audible

 

click as hood is closed. If you don’t

 

hear the click, the switch is out of

Interlock switch not activating.

adjustment. First make certain the

hood hinge screws are tight and that

 

 

the switch is aligned to the hood

 

panel and tight. If you still don’t get a

 

click, then adjust the interlock switch

 

position.

 

 

 

When planer overloads on the circuit

 

breaker built into the motor starter, it

 

takes time for the machine to cool

Overload automatic re-set has not

down before restart. Allow unit to

engaged.

adequately cool before attempting

 

restart. If problem persists, check

 

amp setting on the motor starter

 

inside the electrical box.

 

 

24

Page 24
Image 24
Powermatic PM15 operating instructions Trouble, Probable Cause Remedy