Inspect the Wear Plates
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Personal injury or death can result from sudden work tool movement. Sudden movement of the work tool can cause injury to persons near the work tool. To prevent injury or death, make sure that the area around the work tool is clear of personnel and obstructions before operating the work tool. |
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- Clean the work tool.
- Place the work tool in a horizontal position. Open the jaws of the work tool.
- Lock the jaws in an open position. The following procedure describes maintaining the jaws in the open position.
- In order to hold the movable jaw in the open position, install clamp gp (1) onto cover (2) . The clamp gp (1) must be installed behind guide block (3) for the cover. Refer to Table 1 for the part numbers of the clamp gp.
Show/hide table
Table 1 Clamp GP (1)     Sales Model     Part Number     VT-30     200-2959     VT-40     200-2960     VT-50     200-2885     VT-60     200-2961     Show/hide table( 1 ) Part of the maintenance kit
Show/hide tableIllustration 1 g01943988
VT-30, VT-40, VT-50 and VT-60
Clamp GP for the hydraulic cylinder
- In order to hold the movable jaw in the open position, install clamp gp (1) onto cover (2) . The clamp gp (1) must be installed behind guide block (3) for the cover. Refer to Table 1 for the part numbers of the clamp gp.
- Inspect wear plates (K, L, M, P) for excessive wear or damage. If the wear plates have excessive wear or damage, the wear plates must be replaced.
Note: New wear plates contain cracks, due to the hardness of the material. Cracks on new wear plates are not caused from wear or damage.
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Illustration 2 | g02150387 |
VT-30 VTC and VT-30 VTB Wear plates installed on different sales models. |
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Illustration 3 | g02150388 |
VT-30 VTC, VT-40 VTB, VT-50 VTC, and VT-50 VTB Wear plates installed on different sales models. |
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Illustration 4 | g02150390 |
VT-30 VTK, VT-40 VTK, VT-50 VTK, VT-60 VTC, and VT-60 VTB Wear plates installed on different sales models. |
Replace the Wear Plates
- Clean the work tool.
- Place the work tool in a horizontal position. Open the jaws of the work tool.
- Lock the jaws in an open position. Refer to , "Inspect the Wear Plates" for more information.
- Remove teeth at jaw location (Y) .
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Illustration 5 | g02151830 |
VT-30 VTC and VT-30 VTB jaw sets Wear plates installed on different sales models. |
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Illustration 6 | g02151832 |
VT-40 VTC, VT-40 VTB, VT-50 VTC, and VT-50 VTB jaw sets Wear plates installed on different sales models. |
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Illustration 7 | g02151833 |
VT-30 VTK, VT-40 VTK, VT-50 VTK, VT-60 VTC, and VT-60 VTB jaw sets Wear plates installed on different sales models. |
- Grind away the welds in order to remove the wear plates (K, L, M, P) . The existing wear plates can only be removed by grinding off the wear plates.
- Grind the surface of the end plate (Z) . The surface should be clean and free of rust.
- Remove the paint from the end plate (Z) . Remove the paint from the surface to be welded.
Show/hide table
Table 2 Sales Model     VT-30 VTC, VT-30 VTB     VT-40 VTC, VT-40 VTB     VT-50 VTC, VT-50 VTB     VT-30 VTK     VT-40 VTK     VT-50 VTK     VT-60 VTC, VT-60 VTB     (A) (1)     44 ± 2 mm (1.73 ± 0.079 inch)     N/A     N/A     N/A     N/A     N/A     N/A     (B)    
18.5 ± 2 mm (0.728 ± 0.079 inch)    N/A     N/A     N/A     N/A     N/A     N/A     (C)     N/A    
18.5 ± 2 mm (0.728 ± 0.079 inch)    
18.5 ± 2 mm (0.728 ± 0.079 inch)    
15 ± 2 mm (0.591 ± 0.079 inch)    
13.5 ± 2 mm (0.532 ± 0.079 inch)    
15 ± 2 mm (0.591 ± 0.079 inch)    
23.5 ± 2 mm (0.925 ± 0.079 inch)    (D)     N/A    
18.5 ± 2 mm (0.728 ± 0.079 inch)    
18.5 ± 2 mm (0.728 ± 0.079 inch)    
15 ± 2 mm (0.591 ± 0.079 inch)    
13.5 ± 2 mm (0.532 ± 0.079 inch)    
15 ± 2 mm (0.591 ± 0.079 inch)    
23.5 ± 2 mm (0.925 ± 0.079 inch)    (E)     N/A    
45 ± 2 mm (1.772 ± 0.079 inch)
(2X)    
45 ± 2 mm (1.772 ± 0.079 inch)
(2X)    
40 ± 2 mm (1.575 ± 0.079 inch)    
40 ± 2 mm (1.575 ± 0.079 inch)    
40 ± 2 mm (1.575 ± 0.079 inch)    
50 ± 2 mm (1.969 ± 0.079 inch)    (E1)     N/A     N/A     N/A    
40 ± 2 mm (1.575 ± 0.079 inch)    
40 ± 2 mm (1.575 ± 0.079 inch)    
40 ± 2 mm (1.575 ± 0.079 inch)    N/A     Wear Plates (K)     318-1731     N/A     N/A     N/A     N/A     N/A     N/A     Wear Plates (L)     N/A     226-3798
(2X)    317-0894
(2X)    N/A     N/A     N/A     N/A     Wear Plates (M)     N/A     N/A     N/A     321-9947
(2X)    307-6065
(2X)    317-3705
(2X)    321-9877
(2X)    Wear Plates (P)     N/A     N/A     N/A     235-0916     307-6066     317-3706     321-9877     Show/hide table( 1 ) Measure to the top of the wear plates Note: New wear plates contain cracks, due to the hardness of the material. Cracks on new wear plates are not caused from wear or damage.
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Personal injury can result from flame cutting or welding on painted areas. The effect of gasses from burned paint is a hazard to the person doing the cutting or welding. Do not flame cut or weld on painted areas. |
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Illustration 8 | g02463121 |
VT-30 VTC and VT-30 VTB jaw sets Wear plates installed on different sales models. |
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Illustration 9 | g02463122 |
VT-40 VTC, VT-40 VTB, VT-50 VTC, and VT-50 VTB jaw sets Wear plates installed on different sales models. |
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Illustration 10 | g02463123 |
VT-30 VTK, VT-40 VTK, and VT-50 VTK jaw sets Wear plates installed on different sales models. |
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Illustration 11 | g02463124 |
VT-60 VTC, and VT-60 VTB jaw sets Wear plates installed on different sales models. |
- Tack weld the new wear plates (K, L, M, P) to the end plate (Z) of the jaw. Check for proper positioning. Refer to table 2 and illustrations 8, 9, 10 and 11 for dimensions and part numbers of the wear plates (K, L, M, P) .
- Preheat the surface of the end plate (Z) to 150 °C (302 °F) to 200 °C (392 °F).
- In order to weld the wear plate (K, L, M, P) , use welding material AWS A5.18: ER70S-6.
- Cool the weld slowly to room temperature. Wrap the weld in an insulating blanket in order to allow the weld to cool over several hours.
Note: Replacing the wear plates should be performed at the end of the day. Replace the wear plates at a time when the weld will have plenty of time to cool. The weld should have plenty of time in order to cool before the jaw set is placed back into operation.
- Remove all debris from the welds.
- Install teeth at jaw location (Y) . Refer to , "Crusher Tooth and Ripper Tooth-Replace" for the proper procedure.
- Paint the welded area with primer. Allow primer to dry.
- Paint the welded area with a final coat of paint. Allow the paint to dry.
- Remove the clamp gp (1) . Refer to , "Inspect the Wear Plates" for more information.