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18

TOOL ADJUSTMENTS, Continued

STRAP CUTTER

The VT strap cutter has two serrated cutting edges.
After the first edge has become dull or strap cut-off
becomes difficult the blade can be remounted to use
the second cutting edge.  Once both edges have
become worn the blade should be replaced. Use the
instructions below to remount, install and adjust a
new cutter blade.

1.

Remove the two mounting screws which secure
the air motor to the tool body. Remove the weld
motor from the tool by turning the motor counter-
clockwise to release the O-ring which seats on
the top of the motor.

NOTE: The small spring contained in the holder does not need to be removed to change
the cutter blade.

2.

The cutter blade group of parts can now be removed from the tool.  Continue to also remove
the  cutter pin from the tool.

3.

Remove the two smaller screws which mount the cutter blade to the holder. Rotate the cutter
blade to the new cutting edge and reinstall the mounting screws.

NOTE: If both cutting edges are worn replace the cutter blade at this point.

4.

Reinstall the cutter group of parts back into the tool. Before installing the cutter pin inspect
the cutter holder movement within the tool.

A. The holder should move freely up and

down in the tool body. If the holder does
not move freely inspect the tool for debris
or damage.

NOTE: If the holder has been replaced
it may also be necessary to adjust the
clearance of the two cutter guides.

B. The holder should not be able to move

from side to side. Excessive side to side
clearance will result in poor strap cut-off. If
the holder does move side to side, loosen
the four mounting screws which secure
the side guides. Move the guides as
needed to obtain a 0.025mm to 0.127mm
(0.001"-0.005") clearance. 

C. Tighten the mounting screws.

5.

Once the cutter holder has been inspected and adjusted, continue to reinstall the remaining
parts in the order that they were removed.

6.

Run a few test cycles on the tool to confirm that the strap cut-off performs properly.

Summary of Contents for TENSION-WELD VT-19HD

Page 1: ...VT 19 25 HD TENSION WELD STRAPPING TOOL...

Page 2: ...during tensioning and sealing can result in severe personal injury from flying strap or tool When tensioning or sealing position yourself to one side of the strap and keep all bystanders away Using st...

Page 3: ...repairs or cleaning of the tool disconnect air supply This tool is a Tension Weld type sealer A properly made joint will appear as shown in the illustration If the joint does not appear as shown then...

Page 4: ...Adjustments 16 Page Parts List Tool 19 Parts List Air Motors 24 Troubleshooting 27 Maintenance 31 Tool Options 32 VT 19 HD Strapping Tool Signode Part No 426160 VT 25 HD Strapping Tool Signode Part N...

Page 5: ...5 MAJOR COMPONENTS...

Page 6: ...y turning the adjustment screw Key 98 counter clockwise as required AIR SUPPLY INSTALLATION If compressor has a good dryer unit use black pickled pipe When a dryer unit is not installed use galvanized...

Page 7: ...ture is removed at the water leg in the piping system or in the filter NOTE Additional information is available in the Signode publication Air Supply Manual Part No 186038 If you have any questions co...

Page 8: ...inlet air pressure to tool exceeds 90 psig 6 2 bar Strap breakage can result in severe personal injury Maximum operating air pressure is 90 psig 6 2 bar AIR CONSUMPTION Air consumption in cubic feet p...

Page 9: ...to a indoor located Filter Regulator Lubricator or relocate the F R L to a warmer operating area AIR PRESSURE DROP Confirm air pressure calibration by comparing it to a master gauge placed in line whe...

Page 10: ...10 PNEUMATIC INFORMATION Continued Pneumatic Circuit Diagram...

Page 11: ...the strap over the top and around the package place the straps together and remove any excess slack 2 Using your right hand squeeze the tension motor and stationary handle together to open the feedwhe...

Page 12: ...strap alignment is unsatisfactory or the tool needs to be removed before sealing First move the Red tension release latch to the left to disengage the tension motor Continue to remove the tool from th...

Page 13: ...m has completely returned to the neutral position NOTE The weld mechanism s return to the neutral position can be identified by the indicator located on the top of the tool When the indicator is in th...

Page 14: ...sure that the tool operating instructions are being followed before applying another strap 2 Cut the strap off and apply another A good weld will show some material displacement along the edges The we...

Page 15: ...e to produce an acceptable joint or if you have any questions as to whether your tool is producing good weld strength contact your Signode Sales Representative 5 Replace the cap over the screw WELD CO...

Page 16: ...gripper plug at this point should fall between 008 to 016 20mm to 40mm 3 If the feedwheel needs to be adjusted use a 3mm hex wrench to turn the adjustment screw which can be accessed through the bott...

Page 17: ...er blade to the new cutting edge and reinstall the mounting screws NOTE If both cutting edges are worn replace the cutter blade at this point 4 Reinstall the cutter group of parts back into the tool B...

Page 18: ...rder together as Signode Part Number 425631 Spring Seat Assembly 4 Key numbers 41 Roller Clutch and 42 Clutch Sleeve can be order together as Signode Part Number 425632 Clutch Sleeve Assembly 5 Instal...

Page 19: ...entified by an incomplete area of weld 8 Incomplete or no weld 9 Strap is over welded 10 Motor shut off is sluggish 11 Strap weld time is erratic 12 Weld time is too long CUT OFF ACTION 13 The cut off...

Page 20: ...ct vibrator eccentric for wear or damage Replace as required 4 Carefully remove the air motor from the tool and disassemble it If these parts are only dirty clean thoroughly oil and reassemble If they...

Page 21: ...or no weld CAUSE REMEDY 1 Improperly set weld time adjustment 2 Worn teeth on upper or lower weld pads 3 Insufficient air supply pressure 4 Worn o ring on main piston 1 Adjust weld time as required p...

Page 22: ...REMEDY Too much oil in the air supply system of the tool Purge the tool of all excess oil 13 CONDITION The cut off has become difficult CAUSE REMEDY 1 Strap residue jamming cutter mechanism 2 Cutter...

Page 23: ...lubricate the welding mechanism GEAR HOUSING Periodically check the gear housing portion of the tool 1 Remove the end cap from the front of the gear housing by removing the set screw and pulling the e...

Page 24: ...32...

Page 25: ...of the tool over the container to be strapped and the proper placement of a strapping dispenser to provide a continuous easy supply of strapping for the application The VT can be suspended in various...

Page 26: ...e VT tool from its side to allow for easier horizontal strapping applications as well as top and side sealing applications The hanger replaces the standard VT tool hanger NOTE Hanger is supplied with...

Page 27: ...ned in EC Directive 89 392 EEC Machine Supplier Signode Division of ITW Ltd Queensway Fforestfach Swansea SA5 4ED Machine Description VT Series Machine Type Pneumatic Combination Hand Strapping tool P...

Page 28: ...the tool is in Signode s possession for warranty repairs This warranty is void as to any tool which has been I subjected to mis use misapplication accident damage or repaired with other than genuine...

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