Johnson Hardware VH-40 - Manual

Page 2 - – Section I; FOREWORD

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 2 – Section I If machine is to be operated At 440 volt 3 phase power, please read the following warning. FOREWORD These instructions cover the installation and operation of vertical band saws. Attention to maintenance and service will afford many ye...

Page 3 - SECTION I - TABLE OF CONTENTS

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 3 – Section I SECTION I - TABLE OF CONTENTS Specifications ....................................................................................... 4 Machine Features ................................................................................ 5-...

Page 5 - – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 5 – Section I

Page 6 - – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 6 – Section I

Page 7 - – Section I; MACHINE UNPACKING AND INSTALLATION; surfaces, electrical or hydraulic parts.; Carefully inspect the machine for physical damage. If; Remove the mounting bolt nuts from the machine. Using the; INSTALLATION

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 7 – Section I MACHINE UNPACKING AND INSTALLATION UNLOADING: Remove the shrink-wrap covering the machine, carefully as not to damage painted surfaces, electrical or hydraulic parts. Carefully inspect the machine for physical damage. If damage is note...

Page 8 - – Section I; FILLING THE SPEED REGULATOR; Turn the saw off once handwheel is in.; MACHINE OPERATION; PRECAUTIONS; Eye protection should be worn.

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 8 – Section I FILLING THE SPEED REGULATOR 1. Turn the saw on. 2. Screw the handwheel in. 3. Turn the saw off once handwheel is in. 4. Remove the mounting screws (item 6). 5. Remove the plug from the cylinder (Item 3). 6. Turn screw out. 7. Add oil (...

Page 9 - – Section I; clockwise; manner runs the blade toward the; back; edge; counter clockwise; movement will move the blade toward the; front; edge of the; BLADE INSTALLATION

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 9 – Section I WHEEL ALIGNMENT V-16 & V / VH-24 Note: This alignment is factory set, but may need adjustment when replacing blade. Two wheel machines have a bottom wheel that drives the saw blade and a top idle wheel that is adjustable to facilit...

Page 10 - 0 – Section I; The

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 10 – Section I BLADE TENSIONING The blade indicator is located inside the upper wheel compartment, on the lower left side of the idle wheel. (See machine features graphic) The indicator has an arrow mounted on the horizontal plane, with a correspond...

Page 11 - 1 – Section I; BLADE GUIDES

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 11 – Section I An analysis of the work to be performed should be made and the proper blade selected. The blade should always be inspected before installing on the machine. Things to look for should be the smoothness on the sides and back edge of the...

Page 12 - 2 – Section I; HIGH SPEED ROLLER GUIDES; Upper Guide Installation:

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 12 – Section I HIGH SPEED ROLLER GUIDES Applications and Advantages: Friction and abrasive cutting, filing operations, aluminum and woodcutting. These guides eliminate having to change inserts when changing to blades of different widths. Requirement...

Page 13 - 3 – Section I; Note: The adjustments

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 13 – Section I 4: Insert the mounting stud (B) into the guide casting (A). Keep the stud flush with the front of the casting. Keeping the mounting stud flat area on the bottom, tighten securely the set screw (C) on the bottom of the casting. 5: Inse...

Page 14 - 4 – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 14 – Section I Repeat this process for the lower guide assembly. Note: Upper guide stud may be adjusted in or out in the guide post to allow proper clearance for blade, and for alignment with lower guide. Align backup bearing as previously described...

Page 15 - 5 – Section I; FAILURE TO DO SO; for blade selection and a percentage chart for

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 15 – Section I Note: Occasionally the drive wheel may have to be jogged by hand to engage the transmission lever. The variable speed is achieved through the use of a variable regulator. (Figure 3) This is turned clockwise or counter clockwise to obt...

Page 16 - 6 – Section I; SAW BLADE SELECTION; SPEEDS AND FEEDS

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 16 – Section I SAW BLADE SELECTION MATERIAL SHAPE MATERIAL SHAPE MATERIAL SHAPE MATERIAL IN INCHES TOOTH SELECTION TOOTH SELECTION TOOTH SELECTION 0 14 / 18 14 / 18 14 / 18 .1 14 / 18 14 / 18 14 / 18 .2 14 / 18 14 / 18 14 / 18 .3 10 / 14 14 / 18 10 ...

Page 17 - 7 – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 17 – Section I MATERIAL ALLOY 1/2" 1" 2" 4" 7" 12" 1100,2011,2017,2024 fpm 568 sipm 7 fpm 577 sipm 11 fpm 536 sipm 16 fpm 498 sipm 21 fpm 451sipm 23 fpm 389 sipm 24 ALUMINUM ALLOY 3003,5052,5086,6061 fpm 568 sipm 7 fpm 577 si...

Page 18 - 8 – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 18 – Section I MATERIAL ALLOY 1/2" 1" 2" 4" 7" 12" A-6 fpm 227 sipm 3 fpm 223 sipm 4 fpm 214 sipm 6 fpm 199 sipm 9 fpm 180 sipm 9 fpm 156 sipm 10 COLD-WORK A-2 fpm 204 sipm 3 fpm 200 sipm 4 fpm 193 sipm 6 fpm 179 sipm 8 fpm 1...

Page 19 - 9 – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 19 – Section I NITRONIC 50,60 fpm 68 sipm 1 fpm 67 sipm 1 fpm 64 sipm 2 fpm 60 sipm 3 fpm 54 sipm 3 fpm 47 sipm 3 MATERIAL ALLOY 1/2" 1" 2" 4" 7" 12" MARTENSITIC STAINLESS STEEL GREEK ASCOLOY fpm 108 sipm 1 fpm 106 sipm 2 fpm...

Page 20 - 0 – Section I; RATE REDUCTION FOR HARD MATERIALS; RATE REDUCTION

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 20 – Section I MATERIAL ALLOY 1/2" 1" 2" 4" 7" 12" INCONEL 751,X750 fpm 79 sipm 1 fpm 79 sipm 1 fpm 79 sipm 1 fpm 79 sipm 1 fpm 79 sipm 1 fpm 79 sipm 1 NICKEL BASE WASPALOY fpm 79 sipm 1 fpm 79 sipm 1 fpm 79 sipm 1 fpm 79 sip...

Page 21 - 1 – Section I; HYDRAULIC FEED TABLE; Note: Always wear eye protection when using this welder or grinder!; PREPARATION OF BLADE

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 21 – Section I 38 353 40% HYDRAULIC FEED TABLE Machines equipped with a hydraulic feed table (VH models) have a pumping unit in the base. The system has an adjustable relief valve, which is factory preset at 400 p.s.i. This setting may be reduced to...

Page 22 - 2 – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 22 – Section I Cut the blade ends accurately and at right angles. (See graphic below) Check abutment against the stop for a cut at right angles. Proper welding can only be achieved if the blade ends are cut with out a burr and at right angles. (Also...

Page 23 - 3 – Section I; After annealing bend test your weld:; figure 2; We must emphasize once again that proper welds cannot be; Welding of blades may take

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 23 – Section I After welding loosen the pressure clamps (7 fig. 1) and set the jaws to the wide annealing position by turning the upsetting pressure switch (2 fig. 1) counter clockwise. Re-clamp the blade so that the weld is in the center between th...

Page 24 - 4 – Section I; SHOCK HAZARD! ONLY A QUALIFIED ELECTRICIAN SHOULD ATTEMPT THIS.; Monitor Hydraulic Reservoir.

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 24 – Section I If incoming voltage is high reverse this procedure. If incoming voltage is low, the welder transformer has taps that can be set to a 10% increase or decrease. SHOCK HAZARD! ONLY A QUALIFIED ELECTRICIAN SHOULD ATTEMPT THIS. ALWAYS CONT...

Page 25 - 5 – Section I

4/29/03 Manual V-16, V-24, VH-24, V-40 & VH-40 25 – Section I RIP FENCE Standard all models (figure 2) (Part number 714805 – Model 24/40) (Part number 714869 – Model 16) Used for cutting material in accurate straight lines. To attach, insert T-bolt provided in the T-slot in the front of the tabl...

Johnson Hardware VH-40 - Manual

Table of Contents:

Summary

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