INTRODUCTION Thank you for purchasing a Kurt 3400H. You have just purchased one of the best machine vises in the industry. The outstanding accuracy of this product is second to none. Backed by a lifetime warranty against workmanship and material defects, this product is built to last when used and maintained properly.
SET-UP INSTRUCTIONS Now that you have your new Kurt Vise, it’s time to set-up and begin using it. Your Kurt vise comes with a swivel handle in the shipping carton (instruction manual available online at www.kurtworkholding.com). The handle is specifically designed to provide maximum torque to your vise (clamping force provided below).
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Hydraulic Unit with a typical hydraulic pump or an air over hydraulic pump. Kurt offers several solutions for hydraulic pumps, one being the KHP3 air over hydraulic pump. Kurt offers other pump solutions and can be found on kurtworkholding.com. The hydraulic unit (KHU4), on the end of the 3400H/3410H, has a 1/4 inch stroke.
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HYDRAULIC OPERATING INSTRUCTIONS Basic Hydraulic Set-Up: NOTE: The following set-up is specifically for the KHP3 pump 1. Remove plastic caps from pressure and release ports on Hydraulic pump. Install 90° fittings. 2. Remove plastic caps from pressure and release ports on hand or foot valve.
HYDRAULIC SET-UP NOTE: The following set-up is specifically for the KHP3 pump. Purple Airline Fig.3 Blue Airline Black Airline Air Exhaust Fig.4 1/8" NPT Fitting to 1/4" Blue Airline Hydraulic Pressure Shop Air Gauge Input Port 1/4" NPT to 1/4" High Pressure Fitting (#6 Male JIC) for Hydraulic Hosing to...
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HYDRAULIC SET-UP Less Than 1/4" Fig.5 Jaw Positioning: Once all plumbing is set up, it time to position jaws for hydraulic clamping. 1. Position jaws less than 1/4 inch from the part being clamped as is shown in Fig.5 above. This is done manually by putting the handle onto the hex end and turning the screw until the jaws are in position.
HYDRAULIC OPERATING INSTRUCTIONS Air Pressure Input to Hydraulic Pressure Output for Kurt Hydraulic Pump, KHP3 Fig.6 Flow and Pressure Performance Guides Flow and Pressure Performance Guides KHP3 Fluid Flow Against Pressure KHP3 Fluid Flow Against Pressure 4,000 4,000 Max. Flow 0.68 gpm...
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If you need more clamping force you may require a larger vise. To properly clamp a part in your Kurt vise, you should place the part in the center of the jaws resting on the ways of the vise. Clamping only on one side or above the movable and stationary jaws can result in jaw lift or loss of accuracy.
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Fig.7 Sketch #2A Incorrect part clamping. Vise width centerline Sketch #2B Correct part clamping Sketch #2C Correct part clamping Sketch #2D Correct part clamping Dummy spacer OPERATING INSTRUCTIONS...
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JAW POSITIONING Fig.8 Note: Dimensions below are in inches unless specified. 6.000 8.594 OPERATING INSTRUCTIONS...
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SIDE & END VIEW Fig.9 Note: Dimensions below are in inches unless specified. 2.375 Ø P [TYP] 4.000 Ø P [TYP] 12.644 5.203 1.115 2.047 1.235 3.000 0.547 3.09 1.505 0.250 0.687 2.50 3/8-16 2.580 0.990 OPERATING INSTRUCTIONS...
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MOUNTING LOCATIONS Note: Dimensions below are in inches unless specified. Fig.10 1.559 100 MM 4.000 16 MM DR & C'Bored for 0.625 "OO" SHCS [2X] C'Bore Depth of "PP" 9/16 0.95 0.541 1.203 1.441 10.000 GG HEX OPERATING INSTRUCTIONS...
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SURFACE MOUNT USING SINE KEYS Mounting the new 3400H can be done by the use our new sine keys as well as our standard keys. The fixture keys are available in several different sizes that are listed on our website at www.kurtworkholding.com. The keys are sold in sets of 2 per package.
MAINTENANCE SCHEDULE It is very important to perform regular maintenance on your Kurt vise to ensure proper operation. Improper maintenance will result in poor vise performance and may void your warranty. Daily/ Weekly 1. Remove chips from surface of vise.
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7. Tip the jaw so the front of the jaw (the side with the jaw plate) is on the vise bed. Lower the jaw on to the bed so that the segment contacts the hook part of the nut and rest the jaw on to the vise bed. 8.
3. Install 2 SHCS removed in Step 1 opposite one another, threading them approximately halfway in. Using the two SCHS as a sort of handle (or use Kurt Spanner Wrench P/N: DL640-307A-SA), loosen the second (larger) portion of the retaining nut. You should notice a washer and spring coming out of the end of the hydraulic unit.
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3. Continue to do so until the washer is slightly recessed inside the hydraulic unit. This is crucial, otherwise the spring will keep the hydraulic unit from completely bottoming out in the vise body counter bore. (See Fig.19) Fig.19 0.015 4.
5 though 7. TROUBLESHOOTING TIPS If properly maintained, the Kurt 3400H Series vise will operate trouble free for many years. In some cases it will be necessary to troubleshoot. Use the information below to help in the process.
The sole obligation of Kurt Manufacturing Company, Inc. (Kurt) and the purchaser’s SOLE AND EXCLUSIVE REMEDY hereunder, shall be limited to the replacement or repair of any Kurt product or part (by an authorized Kurt technician) which are returned to Kurt Manufacturing Company’s place of business or any authorized service...
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If you have any feedback or questions please contact us: Kurt Industrial Products // A Division Of Kurt Manufacturing 9445 East River Road NW | Mpls, MN 55433 Phone 763-574-8309 | Toll Free 877-226-7823 Fax 763-574-8318 | Toll Free Fax 877-226-7823 Manual Revision: kurtworkholding.com | workholding@kurt.com...
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