40
40
Mechanical Troubleshooting
– Planer/Jointer
Trouble
Probable Cause
Remedy
Chain jumping.
Inadequate tension.
Adjust chain tension.
Sprockets misaligned.
Align sprockets.
Sprockets worn.
Replace sprockets.
Machine will not
start/ restart or
repeatedly trips
circuit breaker or
blows fuses.
No incoming power.
Verify unit is connected to power, on-button is
pushed in completely, and stop-button is
disengaged.
Overload automatic reset
has not reset
When planer overloads on the circuit breaker
built into the motor starter, it takes time for the
machine to cool down before restart. Allow
unit to adequately cool before attempting
restart.
Planer frequently trips.
One cause of overloading trips, which are not
electrical in nature, is too heavy a cut. The
solution is to take a lighter cut. If too deep a
cut is not the problem, then check the amp
setting on the overload relay. Match the full
load amps on the motor as noted on the
motor plate. If the amp setting is correct then
there is probably a loose electrical lead.
Check amp setting on motor starter.
Building circuit breaker
trips or fuse blows.
Verify that planer is on a circuit of correct
size. If circuit size is correct, there is probably
a loose electrical lead. Check amp setting on
motor starter.
Loose electrical
connections.
Go through all the electrical on the planer
including motor connections, verifying the
tightness of each. Look for any signs of
electrical arcing which is a sure indicator of
loose connections or circuit overload.
Motor starter failure.
Examine motor starter for burned or failed
components. If damage is found, replace
motor starter. If motor starter looks okay but is
still suspect, you have two options: have a
qualified electrician test the motor starter for
function, or purchase a new starter and
establish if that was the problem on change
out
Switch or Motor failure
–
how to distinguish.
If you have access to a voltmeter, you can
separate a starter failure from a motor failure
by first, verifying incoming voltage at 220+/-15
Summary of Contents for JP-1250-1.0
Page 45: ...42 42 CUTTER BLOCK GUARD AND OUTFEED ASSEMBLY PARTS DIAGRAM ...
Page 48: ...45 45 CUTTER BLOCK ASSEMBLY PARTS DIAGRAM ...
Page 51: ...48 48 BASE ASSEMBLY PART DIAGRAM ...
Page 54: ...51 51 INFEED TABLE ASSEMBLY PARTS DIAGRAM ...
Page 56: ...53 53 DRIVE AND MOTOR ASSEMBLY PARTS DIAGRAM ...
Page 58: ...55 55 PLANER TABLE ASSEMBLY PARTS DIAGRAM ...
Page 61: ...58 58 WORKING FENCE ASSEMBLY PARTS DIAGRAM ...
Page 63: ...60 60 NOTES ...
