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XT Mobile Shear

Reference Guide

Содержание GXT 115

Страница 1: ...XT Mobile Shear Reference Guide ...

Страница 2: ...2 This document is a quick reference only It does not replace the GXT Safety and Operator s Manual which must be 7 3 4 5 6 8 9 14 12 19 2 1 13 11 10 15 16 17 18 ...

Страница 3: ...ind 12 Dual guide blades insert shims between the adjustment plate and blade when setting adjusting blade gap Note from the operator s view the left guide blade may or may not have an adjustment plate If not insert shim s directly against the back of the guide blade 13 Upper and lower secondary cutting blades Only insert shims behind the lower placing between the adjustment plate and blade when se...

Страница 4: ...et pivot Bracket cylinder Bearing slewing four locations All points listed in 4 hour checklist Grease all locations until grease extrusion is visible Check blade gaps see page 7 for minimum and maximum Check blade edge radiuses Check for loose or damaged bolts retorquing loose bolts when cool Check AutoGuide shim to tolerance and replace when shims exceed 0 100 Build up and hard surface as require...

Страница 5: ...4 and 8 hour checklists on page 4 until grease extrusion is visible with the jaw open and closed After greasing the rotation bearing rotate the shear through two full rotations followed by all operators and maintenance personnel Grease locations 1 Bracket pivot center of tube 2 Bracket cylinder end of pin 3 Shear cylinder end of pin 4 Shear cylinder end of pin 5 Main shaft pivot both sides 6 Beari...

Страница 6: ...tly worn blades may be repeatedly squared with a grinder and square until a maximum of 1 2 13mm of material has been removed from the lower piercing edge The blade width top to bottom may taper 0 060 2mm total Bottom edges may be worn to a maximum radius of 3 16 5mm Red areas require an air gap and blades may occasionally need to be ground to provide clearance Piercing blade contact with the clear...

Страница 7: ...o Piercing Tip Gaps Model Minimum Maximum 115 555 0 010 0 020 665 775 0 015 0 025 995 1555 0 020 0 030 2055 2555 0 025 0 035 A B Cutting Blades Rotate when the cutting edges are worn to a 1 8 3mm radius Recommended rotation intervals are approximately 40 80 hours depending on the material being processed Thin materials may require shorter rotation intervals Blades must be replaced when all four ed...

Страница 8: ...g on the upper jaw connect to the upper but not to the cylinder clevis If needed weld a piece of steel to the area for the grounding clamp and cut the piece off when welding is completed Welding Rules Before you begin Remove adjacent blades as preheating and welding may cause blade damage Wearing an approved respirator grind the area to clean it removing all existing hard surfacing Preheat area to...

Страница 9: ...well as reduce the chance for material to catch on the bottom of the blade during jaw open functions which causes blades to move in their seats Denting deformation or build up higher than blades in these areas may cause upper jaw deflection excessive blade gaps wear to blade faces and undue stress to upper and lower jaws After build up is complete grind material to be flush with a new blade Note C...

Страница 10: ... first pass 1 4 6mm from the edge Stagger the ends of the stringer welds so they do not end in a straight line Cap each stringer bead with one pass of GenWire or GenRod to hard surface Do not apply more than two layers of hard surfacing Peen each pass Grind the ends of all stringer welds with the grain to taper 1 to 1 1 2 25 38mm to the parent material This document is a quick reference only It do...

Страница 11: ...ar model Lower Jaw Single passes approximately 1 25mm apart Work across the top of the chin plate and along the lower jaw toward the throat Use two to three stringers depending on the shear model Lower Jaw Chin Crosshatch the chin plate with stringer beads at 45 angles to form 1 25mm squares followed by all operators and maintenance personnel Grain Staggered stringers Staggered stringers Grain Gra...

Страница 12: ...be ground or arc gouged and re welded using E7018 stick or equivalent Follow all weld procedures and precautions found in your GXT Safety and Operator s Manual Pay special attention to higher wear areas such as the top of the chin plate in front of the razor blade Figure A the area behind the piercing tips on the bottom of the upper jaw Figure B and the inside corner where the chin front and top m...

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