Chicago Electric Biscuit Joiner 38437 User Manual

PLATE JOINER  
4 INCH  
38437  
ASSEMBLY and OPERATING  
INSTRUCTIONS  
Distributed Exclusively by Harbor Freight Tools®  
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Copyright © 1998 by Harbor Freight Tools. All rights reserved. No portion of this  
manual or any artwork contained herein may be reproduced in any shape or  
form without the express written consent of Harbor Freight Tools.  
For technical questions and replacement parts, please call 1-800-444-3353  
 
8. Use eye and ear protection. Always wear ANSI approved impact safety goggles.  
Wear a full face shield if you are producing metal filings or wood chips. Wear an ANSI  
approved dust mask or respirator when working around metal, wood, and chemical  
dusts and mists.  
9. Do not overreach. Keep proper footing and balance at all times. Do not reach over or  
across running machines.  
10. Maintain tools with care. Keep tools sharp and clean for better and safer  
performance. Follow instructions for lubricating and changing accessories. Inspect tool  
cords periodically and, if damaged, have them repaired by an authorized technician.  
The handles must be kept clean, dry, and free from oil and grease at all times.  
11. Disconnect power. Unplug charger when not in use.  
1ꢀ. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches  
are removed from the tool or machine work surface before plugging it in.  
13. Avoid unintentional starting. Be sure the switch is in the Off position when not  
in use and before plugging in. Do not carry any tool with your finger on the trigger,  
whether it is plugged in or not.  
14. Stay alert. Watch what you are doing, use common sense. Do not operate any tool  
when you are tired.  
15. Check for damaged parts. Before using any tool, any part that appears damaged  
should be carefully checked to determine that it will operate properly and perform its  
intended function. Check for alignment and binding of moving parts; any broken parts  
or mounting fixtures; and any other condition that may affect proper operation. Any  
part that is damaged should be properly repaired or replaced by a qualified technician.  
Do not use the tool if any switch does not turn On and Off properly.  
16. Guard against electric shock. Prevent body contact with grounded surfaces such as  
pipes, radiators, ranges, and refrigerator enclosures.  
17. Replacement parts and accessories. When servicing, use only identical  
replacement parts. Use of any other parts will void the warranty. Only use accessories  
intended for use with this tool. Approved accessories are available from Harbor Freight  
Tools.  
18. Secure Work. Use clamps or a vise to hold work. It is safer than using your hands and  
it frees up both hands to operate the tool.  
19. Do not operate tool if under the influence of alcohol or drugs. Read warning  
labels on prescriptions to determine if your judgment or reflexes are impaired while  
taking drugs. If there is any doubt, do not operate the tool.  
SKU 38437  
Page 3  
 
Unpacking  
When unpacking, check to make sure the following parts are included. If any parts are  
missing or broken, please call Harbor Freight Tools at the number on the cover of this  
manual as soon as possible.  
ACCESSORIES  
Assorted biscuits: 0, 10, ꢀ0 gauge  
Carbon motor brush set  
4 mm Hex wrench  
Arbor wrench  
Glue bottle  
Operation  
Part Numbers Used Below Refer to the Parts List  
and Assembly Drawings On Pages 8 and 9.  
Attaching Dust Bag  
For efficient dust pickup, empty bag frequently.  
1. To install Dust Bag (45), slide bag connector onto dust porthole on Joiner (43) until it  
snaps into place.  
ꢀ. To remove, pull release tab on right side of bag connector and slide bag off.  
3. To empty Dust Bag, remove Bag Clamp (63) from power cord and slide plastic clip off  
large end of bag. Do this over a trash can.  
Adjusting Front Fence  
1. To remove Adjustable Front Fence (44), remove the two Lock Knobs (59) and slide the  
retaining Bolts (57) out of the front fence assembly, and remove fence.  
ꢀ. To attach the Adjustable Front Fence (44), insert the two fence bolts through the two  
holes in front of the fence, and through the Joiner (43).  
Note: The lower holes in front of Joiner contain nuts which may be used  
to fasten a fixed auxiliary fence accessory, but are not used with the Ad-  
justable Front Fence.  
3. To reposition Adjustable Front Fence (44), loosen the two Lock Knobs (59), slide the  
fence up or down to desired position. Retighten Lock Knobs. The front of the base  
plate has a height scale to help position the fence.  
SKU 38437  
Page 4  
 
Setting Depth Stops  
The Plate Joiner features a 3-position depth stop wheel with three notches indicating  
different depths. For example, when using a #0 plate, rotate the Depth Adjusting Dial (48) to  
the notch marked “0”.  
1. Pull the Depth Adjusting Dial (48) out to disengage and rotate to the desired notch (0,  
10, or ꢀ0). Reengage Dial.  
ꢀ. Turn tool upside down and place Adjustable Front Fence (44) against a solid surface,  
push forward on the tool until it stops and is held in position.  
3. Check to see where the indicator lines up on the depth scale. The indicator should be  
slightly past the depth number selected (0, 10, or ꢀ0).  
4. If the indicator does not line up (step 3), rotate the Long Screw (46) one way or the  
other until the indicator lines up on the depth scale (step 3).  
Changing Blades  
Warning:To prevent personal injury, always disconnect the power to the  
tool before removing or installing blades.  
1. Disconnect power and turn tool upside down.  
ꢀ. Loosen screws (56) in Adjustable Front Fence (44) and lower fence to expose the two  
screws that hold the base assembly together.  
3. Using the Hex Wrench, remove both screws from front section of Joiner (43) assembly.  
4. Place the Arbor Wrench (included accessory) on spindle and hold to prevent the  
spindle from rotating.  
5. Place an adjustable wrench (or ꢀ4 mm wrench) on the Blade Bolt (6ꢀ) and loosen  
counterclockwise, removing bolt.  
6. Slide Cutting Blade (61) out, noting the direction of the blade teeth.  
7. Install the new Cutting Blade onto the bushing, making sure blade teeth are facing the  
correct direction (see arrow on illustration, next page).  
8. Replace Blade Bolt (6ꢀ) and tighten clockwise until secure.  
9. Reassemble Adjustable Front Fence (44) and lower fence assembly to Joiner base  
assembly using the two screws.  
SKU 38437  
Page 5  
 
Locking On/Off Switch  
The Plate Joiner Switch (35) is located under the Hold Covers (ꢀ8 & ꢀ9).The black push button  
on the left side of the cover locks the switch in the On position for long cutting operations.  
1. To turn the tool On without locking it, press and hold the Switch button in. When  
pressure is released, the switch button snaps back to the Off position.  
ꢀ. To lock the Switch On, press and hold the Switch button in, and then press in the black  
pushbutton on the left side of the handle.  
3. To unlock the Switch from the On position, press and release the Switch button.  
Typical Joiner Applications  
Miter Joints  
T-Joints  
Edge to Edge Cuts  
Butt Joints  
Marking Slot Locations for Standard Cuts  
1. Always begin with the Joiner base cutting into the end of the wood, rather than the  
face as illustrated below.  
ꢀ. Mark the center of slot at a point as least ꢀ-1/ꢀ inches from outer edge of the board.  
Allow at least 1 inch between slots in multiple plate applications for best results. Mark  
all slots on both boards at the same time to assure proper alignment.  
3. Align center line on face plate with the pencil mark on wood as illustrated below.  
4. Grasp the tool with both hands, turn power On and push the tool forward smoothly.  
When Joiner base assembly has butted completely against wood surface to be cut,  
pull back and then turn power Off.  
SKU 38437  
Page 6  
 
Marking Slot Locations for Other Types of Cuts  
When making preparations for cutting slots for T-butt, miter, edge-to-edge, leg and rail, and  
square pattern joints, there are two important steps to ensure proper alignment of the joints.  
1. Align all boards as you want them to appear when finished, then mark the center line  
for the slots on all boards at the same time.  
ꢀ. Set plate depth before making cuts.  
Maintenance  
1. Disconnect tool power before cleaning.  
ꢀ. Wearing ANSI approved safety glasses, use compressed air to blow the tool clean.  
3. Do not insert pointed objects into holes in attempt to clean them out.  
4. Use a mild soap and clean, damp rag to clean tool.  
Caution: Certain cleaning agents and solvents can damage plastic parts. Some of  
these are: gasoline, carbon tetrachloride, chlorinated cleaning solvents, ammonia and  
household detergents that contain ammonia.  
SKU 38437  
Page 7  
 
Parts List  
Item  
Description  
Qty  
Item  
Description  
Qty  
1
Spindle  
1
33  
Name Plate  
1
Straight Key 4 x 1ꢀ  
Circlips for Hole  
Ball Bearing 80101  
Screw M4 x 14  
Washer M4  
1
1
1
4
8
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
8
34  
35  
36  
37  
38  
39  
40  
41  
4ꢀ  
43  
44  
45  
46  
47  
48  
49  
50  
51  
5ꢀ  
53  
54  
55  
56  
57  
58  
59  
60  
61  
6ꢀ  
63  
Tapping Screw  
Switch  
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
4
Cord Armor  
Cord Clip  
5
6
Tapping Screw  
Cord Assembly  
Spring  
7
Packing Gland  
Plate  
8
9
Gear  
Lock Pin  
10  
11  
1ꢀ  
13  
14  
15  
16  
17  
18  
19  
ꢀ0  
ꢀ1  
ꢀꢀ  
ꢀ3  
ꢀ4  
ꢀ5  
ꢀ6  
ꢀ7  
ꢀ8  
ꢀ9  
30  
31  
3ꢀ  
Spindle Ring  
Spindle Sleeve  
Tapping Screw  
Gear Cover  
Washer  
Joiner  
Adjustable Front Fence  
Dust Bag  
Nut M6  
Long Screw  
Spring  
Washer M6  
Pinion  
Depth Adjusting Dial  
Square Nut  
L-shaped Guide  
Bolt M6  
Ball Bearing 80100  
Clamp  
Armature Assembly  
Ball Bearing 80018  
Hoop  
Washer M6  
Top Handle  
Allen Screw M10  
Square Nut  
Screw  
Stator Assembly  
Carbon Brush  
Spring  
Brush Hold Assembly  
Rubber Gauge Washer  
Housing Assembly  
Hold Cover  
Bolt  
Plastic Sleeve  
Lock Knob  
Spacer  
Hold Cover  
Cutting Blade  
Blade Bolt  
Bag Clamp  
Tapping Screw  
Washer M4  
Wire Assembly  
SKU 38437  
Page 8  
 
Assembly Drawings  
Motor Assembly  
Part Numbers  
1 to 4ꢀ  
Joiner Assembly  
Part Numbers  
43 to 63  
SKU 38437  
Page 9  
 

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