Harbor Freight Tools 31849 User Manual

7” RABBETING

®

JOINTER WITH ST AND

31849

ASSEMBLY & OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web Site at www.harborfreight.com

Copyright © 2000 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.

THANK YOU for choosing a HARBOR FREIGHT TOOLS product. F or future reference, please complete the
owner’s record belo w:

Model______________ Serial No.______________ Purchase Date_____________

SA VE THE RECEIPT, W ARRANTY AND THESE INSTRUCTIONS. It is important that you read the entire
manual to become familiar with the unit BEFORE you begin assemb ly.

Technical Specifications

T ool Name: 7" Rabbeting Jointer With Stand
Item Number: 31849

Motor: 1 HP, 110V, 4.9 Amps, 750 W atts , Single Phase
Max. Depth of Cut: 1/2”
Rabbet Cut: 1/2”
Fence: 35-3/8” x 3-3/4”
Rabbeting Ledge: 3-1/4”
Cutting Width: 7”
Cutter Head Speed: 4655 RPM
Fence Tilt: 45 Degrees Right / Left
Overall Dimensions: 47-1/2” x 19-1/2” x 36-1/2”
T able Height: 32-1/2”
Infeed Table: 8” x 18-1/2”

Warning: The warnings, cautions and instructions discussed in this instruction manual

cannot cover all possib le conditions and situations that ma y occur. It m ust
be understood by the operator that COMMON SENSE AND CA UTION ARE
FACTORS WHICH CANNOT BE BUILT INT O THIS PRODUCT, BUT
MUST BE SUPPLIED BY THE OPERATOR.

The Operator

PLEASE REMEMBER:
Do not operate the product if under the influence of alcohol or drugs. Read warning labels on prescriptions to
determine if your judgment/reflexes might be impaired.

Do not wear loose clothing or jewelry as they can be caught in moving parts.
Non-skid footwear is recommended.
Wear restrictive hair cov ering to contain long hair .
Use eye and ear protection. Always wear ANSI approved impact safety goggles and dust mask or respirator

when working around metal, wood and chemical dusts and mists. W ear a full-face shield if y ou are producing
wood chips.

Do not reach over or across running machines. Maintain proper footing and balance at all times.
Do not abuse the power cord. Do not yank on cord to disconnect it from outlet. Keep the cord awa y from heat,

oil and sharp edges.
Feed the work into the machine against the direction of rotation.

Use the right tool for the job. Do not attempt to force a small tool or attachment to do the work of a
larger industrial tool. There are certain applications for which this tool was designed. Do not modify
this tool and do not use this tool for a purpose for which it was not intended.

#31849 Page 2

Work Area

TO A V OID RISK OF PERSONAL INJURY, EQUIPMENT DAMAGE, FIRE AND SHOCK, MAKE SURE YOUR
WORK AREA IS:

Free of damp , w et or rain y conditions .
Free of children (ne v er let them handle tools or machinery).
Well-lit.
Clean and uncluttered.

Before Operating

Before using any tool, any part that appears damaged should be carefully check ed to determine that it will
operate properly and perform its intended function.

Before operating your Jointer check f or damaged parts.
Make certain that the power is OFF before plugging the tool in.
Make sure all clamps, locks and bolts are tight.
Use grounded receptacle only for 110 Volt hook-up.
Give the Jointer a test run. If it makes an unfamiliar noise or vibrates irregularly, turn it off, unplug it and have

the problem corrected by a qualified service technician.
Keep the Cutterhead sharp and free of all rust and pitch.
AL WAYS use a push block when jointing stock.
DO NOT perf orm jointing operations on materials shorter than 8 inches, narrower than 3/4 inches, or less than

1/4 inch thick.
DO NOT make cuts deeper than 1/8" on a single pass .
Check the feed rollers to be sure chips and sa wdust are not caught in them. If the Rollers are not seated

firmly, the Feed Rolls will not hold the stock firmly against the bed. This may result in kickbac k during
operation.

Make certain to turn off and unplug the Jointer when doing any adjustments or maintenance. The tool should
always be turned off and unplugged when not in use.

Keep Guards in place and in working order.
Note: Perf ormance of this tool may v ary depending on variations in local line voltage . Extension Cord usage

may also affect tool performance.
Maintenance: F or your own saf ety , maintenance should be perf ormed regularly by a qualified technician.

Caution: Some woods contain preservatives such as copper chromium arsenate (CCA) which can be
toxic. When cutting these materials extra care should be taken to av oid inhalation and minimize skin
cintact.

#31849 Page 3

Grounding/V oltage Warning

Common household current is 110-120 volts. As long as the outlet used with the tool is rated from 110-120V
there will be no complications using it with household receptacles. Plug the tool into a 110-120V properly
grounded outlet protected by a 15-amp, dual element time delay or circuit breaker.

NEVER try to plug a 110-120V tool into a 220-240V circuit or serious complications and possible injury to the
operator may occur . The plugs have different shapes to prevent this .

This tool has a three-prong plug. The third (round) prong is the ground. Cutting off the ground will result in a
safety hazard and void the w arranty.

If the outlet you are planning to use is the two-prong type, do not remove or alter the grounding prong in any
manner. Use an adapter and always connect the grounding plug to a known grounding source. It is
recommended that you have a qualified electrician replace the tw o-prong outlet with a properly grounded
three- prong outlet.

Extension Cords

Your tool has a three-prong plug, theref ore y ou must use a three-prong e xtension cord. Only use rounded
jacket extension cords listed b y the Underwriters Laboratories (UL). Improper use of extension cords may
cause inefficient operation of your tool which can result in ov erheating. Be sure your extension cord is rated to
allow sufficient current flow to the motor .

If you are using the tool outdoors, use an extension cord r ated f or outdoor use (signified b y “WA” on the jac k et).
The extension cord must hav e a minimum wire size depending on the amper age of the tool and the length of the

extension cord. This size is determined by its AWG (American Wire Gauge) rating. The smaller the gauge, the
greater the cable’s capacity. The amount of cords used does not matter: Total length determines the minimum
AWG rating. Every cord must meet the AWG rating. Use the chart below to determine what AWG rating is
required for your situation. Cord length is rated in f eet. Harbor Freight Tools can supply UL listed and outdoor

rated cords in multiple AWG ratings if needed.

AWG RATING CHART

CORD LENGTH
AMPS AWG AWG AWG AWG AWG AWG AWG AWG

0-10.0

10.1-13.0

13.1-15
15-18

25’ 50’ 75’ 100’ 125’ 150’ 175’ 200’

18 18 16 16 14 14 12 12
16 16 14 14 14 12 12 12
14 14 12 12 12 12 12 —­14 12 12 12 12 12 —- —-

DO NOT MODIFY YOUR PLUG IN ANY WAY. IF YOU HAVE ANY DOUBT, CALL A QUALIFIED ELECTRICIAN.

Assembly

Your Jointer will require complete assembly as indicated belo w. To assist you with assembly and oper ation
please refer to the Operational Figures and to the Assembly Diag rams and Parts Lists located at the end of
this manual.

Before assembling, remov e all tr aces of the pac king grease from the Jointer and wipe all parts thoroughly with
a clean dry cloth. When cleaning do not use acetone , gasoline or paint thinner as these solv ents are
dangerous to you and may also cause damage to plastic and rubber parts. Apply a thin coating of automotiv e
wax to any unpainted surfaces to prevent rust.

Caution!: Consider the weight of the components and take the necessary precautions when lifting.

Assistance may be required during assembly.

#31849 Page 4

The Stand

Roof (1A)

Front Side Plate(16A)

Rear Side Plate (30A)

Upright Plate (4A)

Motor (29A)

Side Link Plate(19A)

Crossbeam Plate (18A)

Figure 1

Step 1) Attach the Front Side Plate (#16A) to both of the Side Link Plates (part #19A).

Insert two Screws (#17A) through Front Side Plate and through Side Link
Plate. Slide on W ashers (#7A) and Nut (#6A). Tighten into place. Repeat f or the other side

- see Figure 1.

Step 2) Attach the Rear Side Plate (#30A) to each of the Side Link Plates (#19A).

Tighten it into place with two Screws (#17A) and attach Washers (#7A) and Nuts (#6A)
on inside. Repeat f or other side-see Figure 1.

Step 3) Set the Crossbeam Plate (#18A) so that it sits on top of each of the Side Link

Plates (#19A). Insert two (2) Screws (#17A) through the Crossbeam Plate (#18A) and Side
Link Plate. Slide on W ashers (#7A) and Nuts (#6A). Tighten into place. Repeat for other
end of Crossbeam Plate- see Figure 1.

Step 4) Set the Roof (#1A) on top of the Side Plates. Insert two Screws (#17A) at each

corner. On the inside slide on Washer (#7A) and Nut (#6A). Secure in place-see Figure 1.

Step 5) Attach the foot Bolt (#22A) through the Chassis (#20A) and to the bottom of each corner.

From the top , slide on W asher (#7A) and tighten on Nut (#6A).

Step 6) Set the Jointer on the Stand with the Cutterhead Guard facing the F ront SidePlate (#16).

There are two holes for the Bolts (#68-Jointer Assembly) o v er the Right Protecting Plate (#8A)
and one hole for a Bolt (#68-Jointer Assembly) in the center of the Roof (#1A) abov e the Left
Protecting Plate (#26A). Slide the Bolt (#68-Jointer Assemb ly) through the flat Washer
(#67-Jointer Assembly) through the Roof (#1A) and into the Jointer .

Step 7) Attach the Right Tapping Fender (#23A) and the Left Tapping Fender (#27A) to the

Tapping Plate (#25A). Insert Lock W asher (#21A) with the head on the outside of the Stand.
Slide on W asher (#7A) and Nut (#6A). Tighten Tapping Fenders onto Plate-see Figure 2.

Step 8) Attach a Lock Plate (part #24A) to each corner hole and to the top hole in the Left Protecting

Plate (#26A). Mak e certain that the part of the Lock Plate with the wing is on the outside of
the Protecting Plate-see Figure 2.

#31849 Page 5

Step 9) Attach the Tapping Plate (#25A) with Right and Left

Tapping Fenders (#23A & #27A) to the Left Protecting
Plate (#26A). Insert the Screws (#17A) with head on the
outside of the Plate. On the inside , slide on W asher
(#7A) and Nut (#6A)-see Figure 2.

Step 10) Attach the Reinforcing Plate (#3A) to the Roof ( #1A)

on the same side as the Left Protecting Plate
using Screws (#17A), Washers (#7A) and Nuts (#6A).

Left T apping Fender (#27)

Step 11) Attach the Upper Link Plate (#2A) to the Roof (#1A)

with Screw (#17A) inserted downward. Slide on
Washer (#7A) and tighten on Nut (#6A)-see Figure 1.

Step 12) Slide the Left Protecting Plate (#26A) on and tighten it

into place with six (6) Screws (#17A). F asten on
the inside with W ashers (#7A) and Nuts (#6A).
Make certain that the lips at the top of the
Tapping Plate (#25A) are positioned under the
Upper Link Plate (#2A) as in Figure 1.

Step 13) Attach the Motor (#29A) to the Upright Plate (#4A) making certain that the Screws

(#17A) are placed at least half way up the Plate (#4) on the side opposite the lips. You will
have to move the Motor (#29A) later when tensioning the Belt. Secure in position with
Washer (#7A) and Nut (#6A)-see Figure 1.

Step 14) Mount the Upright Plate (#4A) so that it is attached at the top to the Upper Link Plate (#2A)

and at the bottom to the Side Link Plate (#19A). Attach to the Upper Link Plate making sure
that the lips of the Tapping Plate (#25A) are sandwiched between the Upper Link Plate (#2A)
and the Upright Plate (#4A).

Step 15) Attach three (3) Lock Plates (#24A) to the Right Protecting Plate (#8A). Slide the Plate

onto the Frame and twist the Loc k Plates so that the Right Protecting Plate is securely in
position.

Lock Plate (#24A)

Left Protecting Plate (#26A)

Figure 2

T apping Plate (#25A)

Jointer Assembly
Each of the following part numbers, unless otherwise specified, are from the Jointer Parts List on page 14 and

the Jointer Assembly Diagram on page16.
Step 1) Attach the Belt Cover (#64) to the Stand (#69). Make certain that the Belt (#10) is

in place on the Center Head Pulley (#9). Insert Recessed Screw (#63) through
each foot of the Belt Cov er (#64). From underneath, attach Lock Washer (#65) and tighten

into place with Nut (#66).
Adjusting Belt Tension
Correct tension is indicated when there is approximately 1" deflection in the Belt (#10)

with slight finger pressure.
Step 1) Loosen the Nuts and Bolts on the Upright Plate (#4A-Stand Assembly). Mo v e the Motor up or

down along the Upright Plate until the correct tension is achieved. Tighten Nuts and Bolts

into place-see Figure 3.

#31849 Page 6