Johnson Hardware E-16, VH-24, V-24, V-40, VH-40, V-16 Blade Installation, Wheel Alignment

Page 9

4/29/03

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 facilitate blade tracking. The edges of the wheels are fitted with a composite material to accommodate the tooth set.

The idle wheel may be adjusted by loosening the knurled locking collar and turning the black knob in the center of the wheel. Turning the knob in a clockwise manner runs the blade toward the back edge of the band wheel. A counter clockwise movement will move the blade toward the front edge of the band wheel.

Correct tracking takes place when the blade runs approximately in the center of the wheel. NOTE: The main casting with adjusting screws have been preset at the factory during assembly utilizing special fixtures. No adjustment should be attempted.

V-40 / VH-40

Machines with two idle wheels in addition to the drive wheel possess tracking control on each wheel. The top band wheel is set at the factory and no future adjustment should be necessary. *All adjustments should be performed utilizing the third band wheel. If difficulty is encountered in tracking, the top wheel may be reset as if the machine were to be used in the two wheel mode.

NOTE: With the V / VH-40 machines, it is possible to have the blade appear to be tracking properly but in actuality the two band wheels can be adjusted so they form an intersecting planes, rather than a common plane or parallel plane. This will result in excessive wear on the crown on the band wheel by the blade teeth, and severe cases, the composite material will shred or actually come loose from the band wheel.

*If the blade does not track properly against the back up guide bearing, there is a small amount of lateral adjustment in the top wheel. (See figure 5) Loosen the set screws and slide the yoke to make the blade line up properly with the backup guide bearing.

BLADE INSTALLATION

Blade selection is based on the many factors and complexity of the work to be cut.

The blade placed on the band wheels with teeth facing toward the operator and down toward the top of the worktable. Tension the blade to remove slack. Rotate the wheels by hand to ensure tracking is correct, and blade will not “pop” off when machine is started. If tracking is incorrect, adjust before starting machine.

Manual V-16, V-24, VH-24, V-40 & VH-40

9 – Section I

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Contents Section I Manual Foreword Section I Table of Contents Model Number Capacity Specifications29/03 29/03 Machine Unpacking and Installation Filling the Speed Regulator PrecautionsWheel Alignment Blade InstallationBlade Guides Blade TensioningBlade Guides High Speed Roller Guides Upper Guide InstallationAre the same for both single and double bearing assemblies Band Speed Selection 29/03 Speeds and Feeds SAW Blade SelectionMaterial Alloy COLD-WORK Nitronic 50,60 Rate Reduction for Hard Materials Speed / CuttingRate Reduction Hydraulic Feed Table Welding Instructions General DescriptionPreparation of Blade Clamping the Blade Ends AdjustmentWelding AnnealingWelder Layout and Controls Welder Maintenance Poor Welds / Trouble ShootingRE-FINISHING the Weld Machine Maintenance USE of Standard and Optional AccessoriesAlways Contact Dake Before Removing the Welder Slots
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