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Page 16

DUSTLESS FEATURE

See Figure 20.

The dust bag located on the rear of your plate joiner provides
a dust collection system. Wood particles are drawn up
through a tunnel in the base and collect in the dust bag during
cutting operations. For more efficient operation, empty dust
bag when half full.

Do not connect plate joiner to power supply before installing
dust bag.

TO INSTALL DUST BAG

The dust bag can be installed by inserting the dust bag
adaptor inside the blower exhaust. 

See Figure 20.

TO EMPTY DUST BAG

Remove dust bag from plate joiner, remove retainer strip and
shake out dust. Occasionally turn the dust bag inside out and
brush the accumulation of dust from the inside of the bag.
This will permit the air to flow through the bag better.

WARNING:

To prevent the possibility of sawdust or foreign objects
being thrown into your face and eyes, never attempt to
use your plate joiner without dust bag properly installed.
Sawdust or foreign objects being thrown into your face
and eyes could result in possible serious injury.

HELPFUL HINTS

Always clamp workpiece securely before cutting.

A safe operator is one who thinks ahead.

Always wear eye protection when cutting slots.

Make set-up adjustments carefully. Then double check.
Measure twice and cut once.

Always dry assemble your project before gluing it
together.

The more biscuits used, the stronger the joint will be.

Keep blade clean and properly sharpened.

Don’t let familiarity make you careless.

Study all safety rules and do the job safely.

NEVER 

place your hands in jeopardy.

Make certain clamps can’t loosen while in use.

Test difficult set-ups on scrap—Don’t waste lumber.

Plan each operation before you begin.

Provide for smoother operation by cleaning your plate
joiner frequently. Shake plate joiner or blow with an air
jet to remove wood particle build-up.

Empty dust bag when half full.

DO NOT ABUSE POWER TOOLS. 

Abusive practices

can damage tool as well as workpiece.

THINK SAFETY BY THINKING AHEAD.

OPERATION

DUST BAG

TO INSTALL DUST BAG

BLOWER EXHAUST

RETAINER

STRIP

Fig. 20

EXTENSION CORDS

The use of any extension cord will cause some loss of power.
To keep the loss to a minimum and to prevent tool overheating,
use an extension cord that is heavy enough to carry the
current the tool will draw.

A wire gage size (A.W.G.) of at least 

14

 is recommended for

an extension cord 50 feet or less in length. A wire gage size
(A.W.G.) of at least 

12

 is recommended for an extension cord

50 - 100 feet in length. When working outdoors, use an
extension cord that is suitable for outdoor use. The cord's
jacket will be marked 

WA.

ADAPTOR

LUBRICATION

All of the bearings in this tool are lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrication

WARNING:

Check extension cords before each use. If damaged,
replace immediately. Never use tool with a damaged
cord since touching the damaged area could cause
electrical shock resulting in serious injury.

CAUTION:

Keep extension cords away from the cutting area and
position the cord so that it will not get caught on lumber,
tools, etc. during cutting operations.

Summary of Contents for JM80

Page 1: ... Carefully read through this entire owner s manual before using your new plate joiner Pay close attention to the Rules for Safe Operation Warnings and Cautions If you use your plate joiner properly and only for what it is intended you will enjoy years of safe reliable service Thank you again for buying a Ryobi plate joiner SPECIFICATIONS No Load Speed 10 000 rpm Rating 120 volts 60 Hz AC 6 0 Amper...

Page 2: ...iner is a fast simple and accurate plunge cutting tool that can be used for this purpose It can be used to cut slots in hardwood softwood plywood particle board and other pressed woods Football shaped wafers called biscuits are then placed inside the slots with glue and used to help line up adjoining surfaces When a water based glue is used the biscuits swell in the joint making an extremely stron...

Page 3: ...Page 3 BUTT JOINTS MITER JOINTS T JOINT EDGE TO EDGE JOINTS TYPICAL APPLICATIONS PLATE JOINER JM80 ...

Page 4: ...bytwocomplete sets of electrical insulation This extra layer of insulation is intended to protect the user from electrical shock due to a break in the wiring insulation All exposed metal parts are isolated from the internal metal motor components with protecting insulation Double insulated tools do not need to be grounded IMPORTANT Servicing of a tool with double insulation requires extreme care a...

Page 5: ... CORD Never carry tool by cord or yank it to disconnect from receptacle Keep cord from heat oil and sharp edges 14 SECURE WORK Use clamps or a vise to hold work It s safer than using your hand and it frees both hands to operate tool 15 DON T OVERREACH Keep proper footing and balance at all times Do not use on a ladder or unstable support 16 MAINTAIN TOOLS WITH CARE Keep tools sharp at all times an...

Page 6: ...ade binds or joiner stalls 33 USE ONLY 4 INCH DIAMETER SPECIFIED BLADES Do not use blades with incorrect size holes Never use blade washers or bolts that are defective incorrect or not specified 34 AVOID CUTTING NAILS Inspect for and remove all nails from lumber before cutting 35 NEVER touch the blade or other moving parts during use 36 NEVER start a tool when the blade is in contact with the work...

Page 7: ...d it stationary against the workpiece It helps prevent skidding when making cuts It also prevents marring of the workpiece from your plate joiner when making cuts APPLICATIONS Use only for the purpose listed below 1 Cutting precise mating oval slots in hard wood soft wood plywood particleboard etc forsplinejoineryapplications Fig 1 WARNING Your plate joiner should never be connected to power suppl...

Page 8: ...plate joiner For most efficient pick up of wood particles empty dust bag often Before attempting to use any tool familiarize yourself with all operating features and safety requirements Fig 2 REAR HANDLE DUST BAG SWITCH TRIGGER REAR BASE ASSEMBLY HEIGHT ADJUSTMENT KNOBS 2 NON SKID BACKING PAD FRONT HANDLE ADJUSTABLE FENCE FRONT BASE ASSEMBLY ANGLE SETTING SCALE HEIGHT SETTING SCALE HEIGHT INDICATO...

Page 9: ...ent knob and making fine adjustments with the jam nut Turning jam nut forward will cut shallow biscuit slots Turning jam nut backwards will cut deeper biscuit slots The biscuit slot should be deep enough to allow slightly more than one half of the biscuit into the slot This extra room allows for proper alignment of the wood being joined TO MAKE FINE ADJUSTMENTS See Figure 4 1 Unplug your plate joi...

Page 10: ...n be set at angles ranging from 0 to 135 with quick accurate positive stops set in 45 increments A scale is located on both sides of the front handle for identifying these positive stop angles Each click you hear when rotating the adjustable fence from one angle setting to another equals a 45 positive stop angle change TO ADJUST ANGLE SETTING See Figure 6 1 Unplug your plate joiner 2 Loosenthetwoh...

Page 11: ...ed above each other Whenmakingedge to edgejointsfortabletops workbenches cutting boards etc the more biscuits you use the stronger the joint will be The following sections illustrate how to make various spline joints using your plate joiner EDGE TO EDGE JOINTS See Figures 7 and 8 Edge to edge joinery is one of the most basic and easiest joints to construct In general two basic adjustments have to ...

Page 12: ... the board and align the indicator marks on the fence with the centerline mark s on the board 11 Depresstheswitchtriggertoturnthepoweronyourplate joiner then push it forward to extend the blade into the wood 12 When the base assembly bottoms out against the depth of cut adjustment knob setting pull back releasing pressure on the spring Blade will retract from biscuit slot 13 Repeat this procedure ...

Page 13: ...lot at the marked centerline intersection 5 Next you must adjust the fence on your plate joiner in order to cut slots into the face of the vertical board TO ADJUST FENCE 6 Unplug your plate joiner 7 Loosen height adjusting knobs and set fence angle at 0 set fence height at desired dimension on the scale then retighten height adjustment knobs securely See Figure 14 Next select the correct depth of ...

Page 14: ...ct the correct depth of cut setting for the biscuit size you plan to use and clamp workpiece securely 5 Align indicator mark on fence with the centerline on the workpiece 6 Plug your plate joiner into power supply and prepare to cut slot 7 Depresstheswitchtriggertoturnthepoweronyourplate joiner then push it forward to extend the blade into the wood 8 When the base assembly bottoms out against the ...

Page 15: ...urnthepoweronyourplate joiner then push it forward to extend the blade into the wood 13 When the base assembly bottoms out against the depth of cut adjustment knob setting pull back releasing pressure on the spring Blade will retract from biscuit slot 14 Repeat this procedure for cutting mating slot and all required miter joint slots 15 Once all slots have been cut place a biscuit in each joint an...

Page 16: ... safety rules and do the job safely NEVER place your hands in jeopardy Make certain clamps can t loosen while in use Test difficult set ups on scrap Don t waste lumber Plan each operation before you begin Provide for smoother operation by cleaning your plate joiner frequently Shake plate joiner or blow with an air jet to remove wood particle build up Empty dust bag when half full DO NOT ABUSE POWE...

Page 17: ...es and resin from blade bearing plate and surrounding areas 9 Cleanwoodparticlesandresinfromslotsandsurrounding areas on front and rear base assemblies See Figure 23 Apply a thin coat of general purpose grease in slots or on bearing plate where base slides 10 Replace rear base assembly Position adjustment rod in its proper place as shown in figure 22 11 Secure rear base assembly in place with the ...

Page 18: ...rbide tipped cutting tooth against the screwdriver or pin and lock blade preventing it from rotating DO NOT lock blade against one of the cutting teeth Carbide tips will break 11 Using a 3 16 in wrench remove blade screw NOTE Turn blade screw counterclockwise to remove See Figure 27 12 Remove outer blade washer and blade 13 Clean wood particles and resin from blade washer dust bag area base assemb...

Page 19: ... fiberglass it has been found that they are subject to accelerated wear and possible premature failure as the fiberglass chips and grindings are highly abrasive to bearings brushes commutator etc Consequently it is not recommended that this tool be used for extended work on any fiberglass material During any use on fiberglass it is extremely important that the tool is cleaned frequently by blowing...

Page 20: ...wn 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 a...

Page 21: ...Page 21 NOTES ...

Page 22: ...sing any extension cord inspect it for loose or exposed wires and cut or worn insulation Ampere rating on tool faceplate 0 2 0 2 1 3 4 3 5 5 0 5 1 7 0 7 1 12 0 12 1 16 0 Cord Length Wire Size A W G 25 16 16 16 16 14 14 50 16 16 16 14 14 12 100 16 16 14 12 10 CAUTION Keep the extension cord clear of the working area Position the cord so that it will not get caught on lumber tools or other obstructi...

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