![background image](http://html1.mh-extra.com/html/ryobi/jm80/jm80_owners-operating-manual_1505789020.webp)
Page 20
TROUBLESHOOTING
PROBLEM
SOLUTION
A. Biscuit slots are too deep or too shallow. Make fine
adjustments to depth setting. See
"TO MAKE FINE
ADJUSTMENTS"
section on page 9.
B. Biscuit thickness may be out of tolerance. Compress
biscuits in a vise if they are too thick.
C. Check to see if biscuits are the correct size for the
size slots that have been cut: #0, #10, or #20.
D. Check to see if biscuits have gotten wet and swollen.
1. Biscuits do not fit slots. Biscuits not fitting slots may
also cause misalignment of boards being joined.
2. Wood particles begin to backup on front of unit.
A. Dust collection system is not functioning properly.
Dust bag may be full. Empty dust bag often. See
"TO EMPTY DUST BAG"
and
"TO INSTALL DUST
BAG"
sections on page 16.
B. The tunnel in the base may be clogged preventing
wood particles from being drawn into the dust bag.
Remove front and rear base assemblies and clean
blade, bearing plate, base assembly slots, and
surrounding areas. See
"CLEANING BASE
ASSEMBLY / DUST BAG TUNNEL"
section on
page 17.
3. Blade becomes difficult to push in when cutting
slots. Blade does not retract properly when cutting
slots.
A. Wood particles and resin have built up on base
assembly slots and surrounding areas. Remove
front and rear base assemblies and clean blade,
bearing plate, base assembly slots and surrounding
areas. Apply a thin coat of general purpose grease
in slots or on bearing plate where base slides. See
"CLEANING BASE ASSEMBLY / DUST BAG
TUNNEL"
section on page 17.
4. Cutting performance is poor and there is a loss of
power or stalling of motor when cutting slots.
A. Blade is dull. Replace blade. See
"BLADE
REPLACEMENT"
section on pages 18 and 19.
B. Resin has built up on blade. Remove blade and
clean blade with gum and pitch remover. See
"BLADE REPLACEMENT"
section on pages 18
and 19 for removing blade to clean and replacing
blade.