GRAVURE TROUBLE-SHOOTING GUIDE



Similar documents
Packaging Gravure Troubleshooting Guide

TROUBLESHOOTING GUIDE FLEXOGRAPHIC INKS

Flexography Troubleshooting Guide

Chapter 7 Hydraulic System Troubleshooting

Hydraulic Trouble Shooting

REDUCING INK AND SOLVENT USE IN ENCLOSED FLEXOGRAPHIC INKING SYSTEMS

ENGINE COOLING SYSTEM

BACKPACK SPRAYERS. MODEL NOS: KSP16 & KSP20 Part Nos: & OPERATING & MAINTENANCE INSTRUCTIONS GC04/12

VC 104+ Rigid Grade / Rigid Grade Imagine VC 104 Rigid Grade Commercial Customised

Trouble Shooting. Pump

LCT 1025 (08/08) Copyright 2008 Harleysville Mutual Insurance Company Page 1 of 5 All rights reserved

MAINTENANCE INSTRUCTIONS FOR THE CLEAN-FLO CONTINUOUS LAMINAR FLOW INVERSION / OXYGENATION SYSTEM

A Guide to Thermoform Processing of Polypropylene. Introduction

WATER BASED INKS FOR FLEXOGRAPHIC PRINTING

Spray gun Maintenance and Troubleshooting Guide (JGA)

Action Plan Template HVAC Page 1

Section 6 Brake Drum Failure Analysis. Brake Drum Wear Conditions. What is Normal Wear? What is Deep or Excessive Wear? WARNING. Deep, Uniform Wear

Diesel Fuel Systems. Injection Nozzles

SINCE 1947 IN THE VAN OF BUFFING MACHINES

74 Chapter CO 2 Cleaning

Table Z. Troubleshooting Chart for Air Conditioners. Cause

Failure to comply with the following cautions and warnings could cause equipment damage and personal injury.

Tractor Painting Tips

Dew Point Tester. Instruction Manual. CVS Regular Chiller Model A-2. CVS Regular Chiller Model A-2


Additional Information. Paint Application

Trouble shooting guide

Model 2128 AIR COMPRESSOR PUMP Operating Instructions

OPERATING INSTRUCTIONS. Shortening Filter Model No. 99-A, 102-A, & 107-A Series LIMITED WARRANTY PRODUCT SPECIFICATION

Trouble Shooting BD & TW Compressor Systems 12 and 24 Volt

8 plumbing. plumbing PulteGroup, Inc. All Rights Reserved.

Volkswagen Jetta, Golf, GTI 1999, Liter VR6 2V Engine Mechanical, Engine Code(s): AFP 17 Engine-Lubrication (Page GR-17)

MASTER CASTER INSTRUCTIONS 10/1/91

Troubleshooting Guide. PS Injection moulding. Splay marks. Burning (Black streaks) Cool feed zone. Dry material, check source of moisture.

Offset Printing Technology Questions and Answer

STEERING SYSTEM - POWER

National Competency Based Skill Training Refrigeration and Air-conditioning Mechanic Logbook

Boiler Preparation, Start-Up and Shutdown

Effects of the MuCell Molding Process

INSTRUCTIONS AND PARTS LIST FOR MODEL 70H & 75H HAND-OPERATED HYDRAULIC PRESS

USER INSTRUCTIONS FOR 10 LITRE PORTABLE DEHUMIDIFIER MODEL NO. DHMD102

Preventive Maintenance. State Energy Assessment Workshop By: DTE Energy Partnership & Services

CO-10 COOLING SYSTEM. Page DESCRIPTION TROUBLESHOOTING CHECK AND REPLACEMENT OF ENGINE COOLANT

Piston Diagnosis A rough Guide

CDS TROUBLESHOOTING SECTION I. VACUUM Weak vacuum at wand. Gauge reads normal (10hg to 14hg)

HVAC-02, Air Conditioning Troubleshooting and Repair

Hydraulic Air Riveter. Operation Manual RC197 RC198. Recommend for mass production line industrial area. Page 1

SERVICE DIAGNOSIS Modine heating & ventilating equipment

Sheetfed Offset Troubleshooting Guide

1. Initial Precautions 2. Technical Precautions and Suggestions 3. General Information and Cure Stages 4. Understanding and Controlling Cure Time

Steam Jet Vacuum Pumps

ENGINE COOLING FAN Lincoln Mark VII COOLING SYSTEM SERVICING DESCRIPTION MAINTENANCE DRAINING CLEANING FLUSHING

Engine, Drive Train, and Hydraulic Repair Indicator Quick Reference Guide

Contents. Introduction... A Note About Heatsinks... Precautions...

Heat Transfer. Condensation. Revaporization

DIRECT THERMAL PRINTING PROBLEM SOLVER

Troubleshooting Your Refrigerator

Acrylic Enamel Topcoat

THERMAL TRANSFER PRINTING PROBLEM SOLVER

1. Preparing thin and thick blood films with capillary or venous blood

Evaluate, Clean, and Tune Guidance

Contents. Introduction... A Note About Heatsinks... Precautions...

PAINT. PAINTING WALLS Interior Walls -Exterior Walls PAINTING DOORS CLEAN UP

NYLON 6 RESINS CORRECTING MOLDING PROBLEMS A TROUBLE SHOOTING GUIDE

FASCINATION 700 HVLP TANNING PRO SYSTEM USER MANUAL

Volkswagen New Beetle 2.0 Liter 4-cyl General, Engine (Engine Code AEG) 17 Engine-Lubrication system (Page GR-17)

MAKING A BETTER MARK WITH INK JET As substrates, industry regulations and customer demands change, fluids are also evolving

REFRIGERATOR INSTRUCTION MANUAL. Model No.: MCBR170W/B/S

MaxiMist Spraymate By Earlex

AIRLESS SPRAY SYSTEMS

The Anatomy of a Label

Voids throughout the jacket or insulation sometimes giving a rough or grainy surface.

Cooling system components, removing and installing

Acrylic Walls Installation Instructions

Installation System. Existing Resilient Sheet Floors

SC2000 CEMENT BONDING PROCEDURES

CTV-1500 Cooling Tower Vacuum Operating & Maintenance Manual

Having trouble getting a brilliant finish with Shellawax or Shellawax Cream? STOP BLAMING THE POLISH AND READ THIS!

GENERAL RUBBER LINING PRINCIPLES

Electric Kettle. Model: SK-1717 INSTRUCTIONS MANUAL

Sewer Jetter GuideSM. How to Unclog Drains with Your Pressure Washer. Use this Guide To:

Instruction manual for Firstline FCS12000CH

HVAC Preventative Maintenance Basics. Presented by Mike Crawley

HEAT PUMP FREQUENTLY ASKED QUESTIONS HEAT PUMP OUTDOOR UNIT ICED-UP DURING COLD WEATHER:

Quik Lining Systems Heater Owners Guide

Presented By: WALTER E. JOHNSTON, PE CEM, CEA, CLEP, CDSM, CPE

Air Hockey Training Camp Care and repair of your Air Hockey Playfield

Apr 17, 2000 LAB MANUAL

Table V. Troubleshooting Checklist for Refrigeration Systems. Air or non-condensable gas in system. Inlet water warm.

Oxy-Fuel Gas Welding. Given a functional oxy-fuel gas unit, instruction and demonstration of use, each student will be able to:

Diesel fuel in winter The effect of cold weather on fuel systems

Costco Bakery Employee Training Manual

In-Line Filters and Coalescers with Automatic Drains

COATING & WRAPPING OF UNDERGROUND PIPING

BUT PRECAUTIONS MUST BE TAKEN OR SERIOUS BURNS CAN RESULT.

Hot, Warm and Cold Mineral Water Cooler [Models Cool18, Cool25, Cool36, Cool50, Cool75, Cool100]

Vinyl Composition Tile Installation System

FS Lubricants. Oil Analysis Program

Troubleshooting. Crown and Bridge Technique

Transcription:

DEFECT PRCE PRBEM PRBABE CAUE TET PBE REMEDE CHATTER Blade angle too sharp Flatten blade angle Too much blade pressure Reduce blade angle Blade too sharp High pigment ink sharpening blade olids test Replace ink if out of spec Uneven ink flow from fountain Dried ink on fountain Fountain set up incorrectly Fountain too far away from cylinder Clean off the fountain Remount fountain Adjust fountain closer to cylinder K FW Too little ink flow from fountain nk flow valve not open enough pen valve wider / check for blockage nk filter clogged Change ink filter nk pump not operating correctly Pressure gauge Replace ink pump Too much ink flow from fountain Fountain baffles are plugged or bent Fountain too close to cylinder nk flow valve open too wide Clean / adjust baffles Adjust fountain away from cylinder Close valve slightly ow temperature in dryer heat gun Raise dryer temperature nk not drying completely on web ow air flow in dryer magnehelic ncrease dryer air flow ow steam pressure to dryer otify maintenance Press speed too high (small dryers only) Decrease press speed High ink viscosity olvent evaporation from ink viscosity test lowly add more solvent to ink PCKG ncorrect pressure on impression roller Too much pressure on mpression roller measure nip flat area Decrease roller pressure Too little pressure on impression roller measure nip flat area ncrease roller pressure mpression roller is the wrong durameter durometer Tester Change roller durometer Dirty impression roller Defective / uneven impression roller Clean the impression roller Change the impression roller Chill rollers too warm Water supply not cold enough / not flowing heat gun otify maintenance

DEFECT PRCE PRBEM PRBABE CAUE TET PBE REMEDE olvents blended incorrectly Have ink room adjust solvent blend ncorrect solvent blend G.C. test (Add PA for P-200 ink system) High room temp causing evaporation otify maintenance Blade angle too sharp Flatten blade angle Blade too thin Replace Blade C H A E G High ink viscosity olvent evaporation from ink viscosity test lowly add more solvent to ink Cylinder engraved incorrectly microscope De-chrome & Re-chrome cylinder Cell walls on cylinder too wide Cylinder worn De-chrome & Re-chrome cylinder Too much air blowing on cylinder cum blower setting too high ower air setting or turn off scum blower Fan or draft blowing on cylinder puff tester Redirect air flow Chill rollers too warm Water supply not cold enough / not flowing heat gun otify maintenance Too much pressure on mpression roller measure nip flat area Decrease roller pressure ncorrect pressure on impression roller mpression roller is the wrong durameter durometer Tester Change roller durometer Defective / uneven impression roller Change impression roller High room temperature otify maintenance nk temp too high nk not thoroughly mixed mpression nip point friction Too much agitation of the ink nk pump not operating correctly pressure gauge nstall ink chillers Decrease impression roller pressure Check the ink pump Change ink filter Unclog agitator elbow Replace pump

DEFECT PRCE PRBEM PRBABE CAUE TET PBE REMEDE Add new ink to old ink ow ink Viscosity Too much solvent in ink viscosity test Replace ink nk pump not operating correctly pressure gauge Change ink filter M T T E Unclog agitator elbow nk is not thoroughly mixed Replace pump nk not properly mixed at formulation Return to ink room for mixing The ink has been "HCKED" olvent poured too quickly into ink Replace ink Blade angle too flat harpen blade angle Blade too low relative to nip point Raise blade closer to nip point Too little pressure on the impression roller measure nip flat area ncrease pressure to the roller nsufficient pressure at the nip point mpression roller is wrong durometer Change the roller to a harder durometer Uneven wax coating weight on stock paper Change the paper ncorrect cylinder engraving Engraving too deep / too shallow Replace the cylinder Dried bits of ink in the ink Clean / change blade Filter ink TREAK Dirty blade Metal bits in the ink Paper dust contaminating blade Filter ink with magnet Check press vacuum system Dirty rollers contaminating blade Clean rollers Blade not oscillating Mechanical failure otify Maintenance

DEFECT PRCE PRBEM PRBABE CAUE TET PBE REMEDE K. P A H Too much ink flow from fountain nk flow valve open too wide Close valve slightly nk flowing over splash guard Blade angle too flat Adjust blade angle nk splash guard leaking plash guard set up incorrectly Reset splash guard inside ink pan Hose to fountain leaking Fountain baffle / ink splash deflector is missing Hose fitting not securely attached Hose gasket worn, missing or broken Hose has a hole in it Baffle set up incorrectly Tighten hose fitting Replace gasket Replace hose Replace fountain baffle et up ink splash deflector nk film not drying on the non print area of the cylinder ot enough air blowing on cylinder Press speed too fast (small dryers only) Turn on scum blower ncrease scum blower air setting Decrease press speed C U M Buff the cylinder Cylinder surface is too rough Cylinder not polished enough RZ test Replace the cylinder High ink viscosity olvent evaporation from ink viscosity test lowly add more solvent to ink Worn blade Running for long periods of time Replace the blade Rough / high cylinder edges Have cylinder filed down ncorrect solvent blend in ink olvents blended incorrectly G.C. test Have ink room adjust solvent blend (add PA for P-200 ink system) Blade angle too flat Blade too close to nip point Blade too thick harpen blade angle ower blade away from nip point Change blade

DEFECT PRCE PRBEM PRBABE CAUE TET PBE REMEDE High ink viscosity olvent evaporation from ink viscosity test lowly add more solvent to ink C R. F F Add new ink to old ink ow ink viscosity Too much solvent in ink viscosity test Replace ink Color mis-match at the ink room Wrong formulation used Replace ink nk pump not operating properly pressure gauge Change filter Unclog agitator elbow nk not thoroughly mixed Replace pump nk not properly mixed at formulation Return to ink room for mixing Blade angle too sharp or flat Adjust blade angle Blade too high / too low relative to nip point Adjust blade hieght Cylinder cells too deep / too shallow Blade too thick / too thin Cylinder is incorrectly engraved Replace blade Wax coating weight on paper uneven Defective coating on stock paper Change paper Dried bits of ink in ink Clean / change blade Dirty blade Metal bits in ink Filter ink Filter ink with magnet DRAG Paper dust contaminating blade Dirty rollers contaminating blade Check press vacuum system Clean rollers Blade angle too sharp or flat Blade too low relative to nip point Blade too thick [ DRAG CTUED EXT PAGE ] Adjust blade angle Raise blade closer to nip point Replace blade

DEFECT PRCE PRBEM PRBABE CAUE TET PBE REMEDE Chrome nodules on cylinder Cylinder buffed incorrectly Re-buff cylinder DRAG (CTUED) Rough blade Blade polished incorrectly Replace blade Blade not oscillating Mechanical failure otify maintenance Worn blade Running for long periods of time Replace blade Chrome nodules on cylinder Cylinder buffed incorrectly Re-buff cylinder Cylinder not polished enough RZ test Re-buff cylinder Contamination under the blade Re-buff / replace cylinder Clean / change blade E ines are scratched into the cylinder icked blade Fountain set too close to cylinder Contamination in ink Blade polished incorrectly Filter ink Finlter ink with magnet Check press vacuum system Clean rollers Adjust fountain setting away from cylinder Change blade Filter ink Change blade Rough / high cylinder edges Have cylinder edges filed down Blade not oscillating Mechanical failure otify maintenance ines are in the wax coating on the paper Defective coating on stock paper Change the paper

DEFECT M G. P R T PRCE PRBEM Cylinder design incorrect Worn cylinder nsufficient pressure at the nip point Cylinder filled in with ink PRBABE CAUE TET PBE REMEDE ncorrect artwork used ver-use De-chrome & Re-chrome cylinder Cylinder buffed too much Blade angle too sharp or flat Flatten blade angle Blade angle too sharp Flatten blade angle Blade too low relative to nip point Raise blade closer to nip point Too little pressure on the impression roller measure nip flat area ncrease pressure to the roller mpression roller is wrong durometer durometer tester Change roller to a harder durometer Uneven pressure on impression roller Balance impression roller pressure Defective or worn impression roller Replace impression roller Cylinder mis-aligned in carriage Remount cylinder High ink viscosity viscosity test lowly add more solvent to ink Clean / scrub out cylinder with solvent Too much air blowing on cylinder Turn off scum blowers or redirect fans Clean / scrub out cylinder with solvent Blade too far from nip point Move blade closer to nip point nk pan too low Adjust ink pan nk temp too high thermometer nstall ink chiller

DEFECT B C K G PRCE PRBEM nk not drying completely on web Rolls wound too tightly nk skinning over PRBABE CAUE TET PBE REMEDE ow temperature in dryer heat gun Raise dryer temperature ow air flow in dryer magnehelic ncrease dryer air flow Clean air nozzles Adjust air nozzle angle ow steam pressure to dryer otify maintenance Press speed too high (small dryers only) FPM tach Decrease press speed ncorrect solvent blend G.C. test Have ink room adjust solvent blend Too much tension on web Decrease press tension Coating on paper uneven Change the paper High temperature in dryer ower dryer temperature High air flow in dryer Decrease dryer air flow Press speed too high Decrease press speed ncorrect solvent blend G.C. test Have ink room adjust solvent blend ow temperature in dryer ncrease dryer temp