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This manual has been prepared for the owner and operators of a JDS-12B Sander.  Its purpose, aside 
from machine operation, is to promote safety through the use of accepted correct operating and 
maintenance procedures.  Completely read the safety and maintenance instructions before operating or 
servicing the machine.  To obtain maximum life and efficiency from your JET Sander, and to aid in using 
the machine safely, read this manual thoroughly and follow instructions carefully. 
 
 

Warranty & Service 

The WMH Tool Group warrants every product it sells.  If one of our tools needs service or repair, one of 
our Authorized Repair Stations located throughout the United States can give you quick service. 
 
In most cases, any one of these WMH Tool Group Repair Stations can authorize warranty repair, assist 
you in obtaining parts, or perform routine maintenance and major repair on your JET, Performax, Wilton, 
or Powermatic tools. 
 
For the name of an Authorized Repair Station in your area, please call 1-800-274-6848, or visit 
www.wmhtoolgroup.com 
 
 

More Information 

Remember, the WMH Tool Group is consistently adding new products to the line.  For complete, up-to-
date product information, check with your local WMH Tool Group distributor, or visit 
www.wmhtoolgroup.com 
 
 

WMH Tool Group Warranty 

The WMH Tool Group (including Performax, Wilton and Powermatic brands) makes every effort to 
assure that its products meet high quality and durability standards and warrants to the original retail 
consumer/purchaser of our products that each product be free from defects in materials and 
workmanship as follow:  1 YEAR LIMITED WARRANTY ON ALL PRODUCTS UNLESS SPECIFIED 
OTHERWISE.  This Warranty does not apply to defects due directly or indirectly to misuse, abuse, 
negligence or accidents, normal wear-and-tear, repair or alterations outside our facilities, or to a lack of 
maintenance. 
 
THE WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED ABOVE, 
FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL.  EXCEPT AS STATED HEREIN, 
ANY IMPLIED WARRANTIES OR MERCHANTIBILITY AND FITNESS ARE EXCLUDED.  SOME 
STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO 
THE ABOVE LIMITATION MAY NOT APPLY TO YOU.  THE WMH TOOL GROUP SHALL IN NO 
EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENTAL, 
CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR 
PRODUCTS.  SOME STATES DO NOT ALLOW THE EXLUSION OR LIMITATION OF INCIDENTAL 
OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY 
TO YOU. 
 
To take advantage of this warranty, the product or part must be returned for examination, postage 
prepaid, to an Authorized Repair Station designated by our office.  Proof of purchase date and an 
explanation of the complaint must accompany the merchandise.  If our inspection discloses a defect, we 
will either repair or replace the product, or refund the purchase price if we cannot readily and quickly 
provide a repair or replacement, if you are willing to accept a refund.  We will return repaired product or 
replacement at JET’S expense, but if it is determined there is no defect, or that the defect resulted from 
causes not within the scope of JET’S warranty, then the user must bear the cost of storing and returning 
the product.  This warranty gives you specific legal rights; you may also have other rights which vary 
from state to state. 
 
The WMH Tool Group sells through distributors only.  Members of the WMH Tool Group reserve the 
right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory 
equipment which they may deem necessary for any reason whatsoever. 
 

Summary of Contents for JDS-12B

Page 1: ... Disc Sander 708432K shown with optional stand 708438 and Canister Filter 708434 JET P O BOX 1349 Phone 253 351 6000 WMH Tool Group Auburn WA 98071 1349 Fax 1 800 274 6840 www wmhtoolgroup com e mail jet wmhtoolgroup com M 708433 05 02 ...

Page 2: ...ly to misuse abuse negligence or accidents normal wear and tear repair or alterations outside our facilities or to a lack of maintenance THE WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED ABOVE FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL EXCEPT AS STATED HEREIN ANY IMPLIED WARRANTIES OR MERCHANTIBILITY AND FITNESS ARE EXCLUDED SOME STATES DO NOT ALLOW LIMITATIONS ON HOW...

Page 3: ...removing starter keys DON T FORCE THE MACHINE It will do the job better and safer at the rate for which it was designed USE THE RIGHT TOOL Don t force a machine or attachment to do a job for which it was not designed USE THE PROPER EXTENSION CORD Make sure your extension cord is in good condition When using an extension cord be sure to use one heavy enough to carry the current your machine will dr...

Page 4: ...e silica from bricks and cement and other masonry products and arsenic and chromium from chemically treated lumber Your risk from those exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work with approved safety equipment such as those dust masks that are specifically designed to filter out microscopic par...

Page 5: ...quipment grounding conductor to a live terminal Check with a qualified electrician or service personnel if the grounding instructions are not completely understood or if in doubt as to whether the tool is properly grounded Use only three wire extension cords that have three prong grounding plugs and three pole receptacles that accept the tool s plug Repair or replace a damaged or worn cord immedia...

Page 6: ...d with a UL CSA listed plug suitable for 230V operation D Contact your local Authorized JET Service Center or qualified electrician for proper procedures to install the plug The sander must comply with all local and national codes after the 230 volt plug is installed 4 The sander with a 230 volt plug should only be connected to an outlet having the same configuration D No adapter is available or s...

Page 7: ...embly Adjustment 8 Unpacking 8 Stand Assembly optional accessory 9 Sander Assembly 9 Table Adjustment 10 Sanding Disc Replacement 10 Center Point 11 Brake 11 On Off Switch 11 Lubrication 11 Motor 11 Dust Collection 11 Canister Filter optional accessory 12 Cleaning the filter 12 Optional Accessories 12 Troubleshooting 13 Parts Breakdowns Parts List 14 17 Wiring Diagram 18 The specifications in this...

Page 8: ...iage Bolt M8x16 16 Hex Nut M8 CF 12DS Canister Filter optional accessory 1 Canister Filter 1 Plastic Elbow 1 Grounding Wire Tools Required for Assembly Adjustments 1 13mm Wrench or socket 1 Combination Square WARNING Read and understand the entire contents of this manual before attempting assembly or operation of the disc sander Failure to comply may cause serious injury Unpacking 1 Remove all con...

Page 9: ...ander to the stand Note If you are going to use the sander as a benchtop unit mount the sander to the workbench with the supplied bolts 2 Unscrew the knob A Fig 2 remove the washer B Fig 2 and the trunnion holder C Fig 2 Repeat for opposite side 3 Lift the table D Fig 2 into position and set on top of the split pins and threaded shaft 4 Reinstall the trunnion holder washer and knob Repeat for oppo...

Page 10: ... Tighten lock knobs and check the table with a combination square 5 If adjustment is needed loosen the hex nut H Fig 5 and adjust the socket head cap screw G Fig 5 until it contacts the table Tighten hex nuts 6 Always maintain a gap of approximately 1 16 between the table edge and disc If adjustment is necessary loosen hex cap bolts I Fig 5 and move the table into position Tighten hex cap bolts 7 ...

Page 11: ...d the switch will not operate Lubrication You may need to lubricate the trunnion and trunnion holder G Fig 8 if the table does not tilt smoothly Motor Make frequent inspections of the motor fan cover and blow out with low pressure air hose or vacuum any accumulation of foreign material in order to maintain normal motor ventilation WARNING All electrical connections must be done by a qualified elec...

Page 12: ...ticle mask respirator for protection against fine dust particles during cleaning is highly recommended Clean the canister filter frequently to keep the sander s performance at its optimum To clean 1 Disconnect the machine from the power source 2 Take off the grounding clip and remove the filter C Fig 9 by turning clockwise 3 Empty the contents into an appropriate container 4 The filter can be clea...

Page 13: ...equate size and length cord 2 Contact a qualified electrician Machine vibrates excessively 1 Stand or base on uneven surface 1 Adjust stand or base so that it rests evenly on the floor 2 Bolt down Sanded edge not square 1 Table not square to sanding disc 1 Use a square to adjust table to sanding disc Sanding marks on wood 1 Work held still 2 Wrong grit sanding disc 3 Feed pressure too great 4 Sand...

Page 14: ...14 Disc Sander Breakdown ...

Page 15: ...er 1 15 SM089400 Countersunk Head Bolt M8x16 1 16 57698525 12 Disc Sanding Paper 36 Grit 25 57698650 12 Disc Sanding Paper 50 Grit 50 57698750 12 Disc Sanding Paper 60 Grit 50 57698850 12 Disc Sanding Paper 80 Grit 50 57698950 12 Disc Sanding Paper 100 Grit 50 57699050 12 Disc Sanding Paper 120 Grit 50 17 612136 Front Cover 1 18 SF069200 Pan Head Bolt w Flange M6x8 5 19 TS 1504071 Socket Head Cap ...

Page 16: ... Head Bolt M6x16 4 50 612099 Sponge 1 51 TS 1551021 Lock Washer M4 2 52 AB198101 Miter Gauge Assembly 1 53 AB612143 Circle Gauge Assembly ASM 1 57 612117 Sponge Gasket 1 58 SP059200 Pan Head Bolt M5x8 1 59 WE050000 Star Washer M5 1 60 612171 Filler Bar 1 61 TS 1502011 Socket Head Cap Screw M5x8 1 JDS12B HK Hardware Kit not shown JDS12B WL Warning Label not shown JDS12B ID I D Label not shown JDS12...

Page 17: ...accessory JDS 12B Stand Assembly optional accessory Index Part No No Description Size Qty 1 612141 Stand Leg 4 2 612142 Stand Support 4 3 SC089400 Carriage Bolt M8x16 16 4 NF081300 Flange Lock Nut M8 16 OS12DS HK Hardware Kit not shown ...

Page 18: ...18 Wiring Diagram ...

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