Joyce/Dayton Corp. Operation and Maintenance Manual for Joyce/Dayton Ball Screw Jacks WARNING! The product described in this catalog is for industrial use only. It may not be used to lift or support people without prior written approval from the Joyce/Dayton Corp. The recommendations in this manual for installation, operation and maintenance must be followed to ensure safe use. All persons responsible for the installation and use of Joyce Jacks must be familiar with the contents of this manual.
Table of Contents Section I – General Information 1-1 1-2 1-3 1-4 1-5 1-6 Contacting Joyce Dayton Corp .................................................................................. 2 Purpose and Scope....................................................................................................... 2 Receipt of Product......................................................................................................... 2 Warranty..................................................................
replacement or refund of the purchase price, of any products or parts or components thereof which are returned to Seller freight prepaid and which are defective in material or workmanship. Products or parts or components thereof which are repaired or replaced by Seller will be returned to Buyer freight collect. This warranty is not intended to cover consumer products, as defined in the Magnuson-Moss Warranty-Federal Trade Commission Improvement Act, 15 U. S. C.
8. 9. 10. 11. to one side to make connection with your structure. Fully extend the jack to make sure the load is aligned with the lifting screw. All jacks are designed to be mounted with S.A.E. Grade 8 bolts or equivalent. Torque all mounting bolts in a symmetric pattern to avoid damage to the sleeve. Shaft and coupling guards are the responsibility of the user. Optional limit switches furnished with the jacks are NOT preset and require field adjustment before use.
D. E. F. G. H. I. J. K. L. M.
8. Carefully remove the shims (item 4,5,6) from the jack sleeve or bearing cap. NOTE: there will not necessarily be an equal quantity of shims per side. Keep track of the number of shims on each side of the jack. Note: the one-ton jack does not have shims. 9. Remove the worm bearings (item 3). The cup may be press-fit. Use a dead-blow, plastic or other non-marring mallet to remove the worm (item 10). Disassembly Procedure for Translating Models: Section 3-3 & 3-4 1. 2. 3. 4. 5. 6. 7. 8.
2. 3. 4. 5. 6. 7. 8. 9. Inspect the cleaned sleeve (item 1) and sleeve cap (item 14) for any signs of stress or facture, especially around the mounting bolt locations. Inspect the worm (item 10) and thrust bearings (item 11,12) for any signs of Brinelling, abrasive wear or spalling. Test for smooth, quiet operation of bearings. Inspect bearing caps (item 7) for any signs of stress. Inspect the keyway on the worm (item 10) and roll worm on a flat surface to look for wobble in the shaft.
Section III Views & Parts List 3-1 Exploded View - Keyed For Travel Nut KFTN 8
3-2 Parts List for KFTN Jack Parts list KFTN Jack Item 1 1a 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34* KFTN- Keyed For Traveling Nut Sleeve (1) Sleeve (miniature jack) (1) Grease Fitting (2) Worm Shaft Bearing (2) Shim (2) Shim (2) Shim (2) Bearing Cap (2) Bearing Cap Screw (6) Worm Shaft Seal (2) Worm (Input Shaft) (1) Lower Thrust Bearing (1) Upper Thrust Bearing (1) Wormgear (1) Sleeve Cap (1) Bushing (upright only) (1) Ball nut (traveling nut) (1) Ball S
3-3 Exploded View – Translating Jack 10
3-4 Parts List for Translating Jack Parts list for Translating Jack Item 1 1a 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 21a 22 23 24 25 26 Translating Sleeve Sleeve (miniature jack) Grease Fitting Worm Shaft Bearing (2) Shim (2) Shim (2) Shim (2) Bearing Cap (2) Bearing Cap Screw (6) Worm Shaft Seal (2) Worm (Input Shaft) Lower Thrust Bearing Upper Thrust Bearing Wormgear Sleeve Cap Bushing (inverted only) Ball Nut Ball Screw Retaining Ring (miniature jacks only) (2) Set Screw - Sleeve Cap (4) Se
3-5 Specifications Model Number WBL51 WBL201 WB51 WB201 (R)WB62 (R)WB122 (R)WB242 (R)HWB62 (R)HWB122 (R)HWB242 WB65 WB125 WB245 HWB65 HWB125 HWB245 Capacity 1 TON 1 TON 2 TON 2 TON 5 TON 5 TON 10 TON 10 TON Lifting Screw Diameter (inches) 3/4 3/4 1 1 1-1/2 1-1/2 1-1/2 1-1/2 .2 .2 .25 1.00 .474 1.00 .474 1.
3-5 Specifications Model Number WB810 WB2410 HWB810 HWB2410 WB820 WB2420 WB1130 WB3230 WB1150 WB3250 Capacity 10 TON 10 TON 20 TON 30 TON 50 TON Lifting Screw Diameter (inches) 2 2 2 1/4 3 4 Thread Pitch/ Lead (inches) .5 1 .5 .66 1.00 Worm Gear Ratio 8:1 24:1 8:1 24:1 8:1 24:1 11:1 32:1 11:1 32:1 Worm Shaft Turns for 1" Travel 16 48 8 24 16 48 16.67 48.48 11 32 20 20 40 60 100 Starting Torque (inch/Lbs.) .023W* .011W* .047W* .023W* .024W* .
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3-6 Maintenance Date Maintenance Performed Initials Joyce Dayton Serial Number Tag Contact Joyce Dayton Corporation and provide the serial number to obtain the product information needed for maintenance, repair and reorder. Joyce Dayton Corp P.O. Box 1630 Dayton, Ohio 45401 Phone (800) 523-5204 (U.S. & Canada); (937) 294-6261 Fax (937) 297-7173 www.joycedayton.com E-mail: sales@joycedayton.
Joyce Dayton Corp P.O. Box 1630 Dayton, Ohio 45401 Phone (800) 523-5204 (U.S. & Canada); (937) 294-6261 Fax (937) 297-7173 www.joycedayton.com E-mail: sales@joycedayton.
