Hammer A3-41 - Troubleshooting Guide; Faults, Causes, and Repairs

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Planer-Thicknesser
A3-26 / A3-31 / A3-41
11.4 Faults, causes and repairs
Fault Cause Repair
Machine does not start Main switch at setting „0“ Check switch position
Planer tables and/or vacuum hood incor-
rectly positioned (Safety break switch is
not activated)
Close planer tables properly and position
the vacuum hood correctly
Squeaking noises when star-
ting up
Insufficient tension (Drive belt) Retensioning the drive belt
The joint is not true (extremely
splayed or open joint)
Receiver-side of the planer table is misa-
ligned
Adjusting the joint
Replace the planer knives*1)
Planer knives are worn out Replace the planer knives
*1)
When surface planing, work-
piece stops at the receiver-side
of the planer table
Receiver-side of the planer table is too
high in relation to the circle of cut
Adjusting the joint
Replace the planer knives
*1)
„Straight cut“ at the end of the
workpiece when surface
planing
Receiver-side of the planer table is too
low in relation to the circle of cut
Adjusting the joint
Replace the planer knives
*1)
The planer fence angle is not
correct
Angle setting misadjusted Correcting the angle of the planing fence
Unsatisfactory planing result System planer knife Check and if necessary reverse or repla-
ce
Standard planer knives Check and if necessary, sharpen or
replace
„Straight cut“ at the beginning
of the workpiece when thick-
ness planing
Insufficient spring pressure on the feeder-
side (corrugated) feed roller
Adjusting the feed rollers*2)
„Straight cut“ at the end of the
workpiece when thickness
planing
Insufficient spring pressure on the
extraction-side (smooth) feed roller
Adjusting the feed rollers*2)
„Oblique cut“ at the beginning
of the workpiece when thick-
ness planing
Insufficient spring pressure on one side of
the feeder-side (corrugated) feed roller
Adjusting the feed rollers*2)
„Oblique cut“ at the end of the
workpiece when thickness
planing
Outfeed roller (smooth) spring pressure
too low on one side
Adjusting the feed rollers*2)
*1)
System planer knives Reverse or replace
Standard planer knives Sharpen or replace
Adjusting the joint
*2) Contact service technician
Faults