What are F-tags?

FUGUAI = DEVIATION<->ABNORMALITY

• Functional Defects
• Pollution
• Difficult to Access/Observe
• Hard to Load/Operate
• Unsafe
• Safety, Health, Environment, Quality (SHEQ) “unfriendly”
• Undesirable Tasks

“F” Tags are used to highlight Deviations, Faults, or Abnormalities.

3 Types of F-Tags

Safety

Everyone writes safety F-Tags for everyone. Mechanics or operators can close these—yellow colour.

Operator

• Operator F-Tags are Blue.
• Operator means anyone non-maintenance (ie. Operators, Supervisors, Cleaners, Sanitation, etc.) to fix the abnormality.
• F-Tag should be attached to the following malfunctions:
  • Wear, Play, Slackness
  • Leakage
  • Dust, Dirt
  • Corrosion
  • Adherence of raw materials
  • Deformation, Surface damage, Cracking
  • Overheating, Vibration, Noise …

Maintenance

• Maintenance F-Tags are Red.
• These F-Tags require Electricians, Mechanics, etc. to fix the abnormality.

F-tag templates in high resolution .pdf files can be downloaded here

F-TAG (Tagging)

• F-Tag (is a visual work order) is a tag that is used to identify problems with the machines

“Four Lists” are used to track the F-Tags:

• Abnormality List
• F-Tag Tally Sheet
• SOC (Sources of Contamination) List
• HTA (Hard-to-Access) List

Where Are Abnormalities Found? Typical F-Tags

• Broken Parts
• Wear, Play, Rattling
• Dust, Dirt, Corrosion
• Cracks, drip marks,
• Deformation, Surface Damage
• Noisy, Hot, Cold, Odour, etc…

Examples of “Fuguai” – Potential problems

1. Minor defects
   • Examples:
     • Dirtiness
     • Scratches
     • Play
     • Looseness
     • Abnormality Adhesion
   • Examples of checkpoints:
     • Dust, dirt, powders, oil, rust and paint
     • Cracking, collapsed, deformed, chipping, bends
     • Shake, slip off tilting, eccentricity, wear, distortion, corrosion
     • Bolt, nut, gauge, cover, belt, chain:
       • Looseness, omission, incorrect tightening, excessively long bolt
       • Battered threads, corrosion, Incorrect washer, bolt direction, double nut put in reverse
     • Abnormal sound, heat, vibration, offensive odor, discoloration, pressure
     • Clogging, sticking, deposition, peeling off
2. Lubrication
   • Examples:
     • Leaking
     • Incorrect conditions
     • Incorrect indicators
   • Examples of checkpoints:
     • Oil depletion, dirty oil, oil type (not known, inadequate), leak
     • Dirty oil support port, clogging, damage, deformation, collapsed pipe, storage condition, inadequate oiling equipment
     • Dirtiness, damage, leak, wrong level indication
3. Source of contamination
   • Examples:
     • Products
     • Raw Materials
     • Hydraulic oil
     • Liquid Gasses Machining & Processing
     • Other
   • Examples of checkpoints:
     • Leak, spilling, blowing off, scattering, overflow
     • Leak, spilling or permeation of fluid
     • Leak, spilling air, gasses, steam, vapor, exhaust water
     • Burrs, chips, packing, sputters, sparks, smokes, adhesive, paints
     • Dropped parts
4. Hard-to-reach areas
   • Examples:
     • Cleaning / Inspection
     • Lubrication
     • Operation
   • Examples of checkpoints:
     • Equipment structure, cover, layout, foothold, space, installing height high or low, indicators inadequate
5. Quality defects
   • Examples:
     • Foreign matters
     • Manufacturing condition
   • Examples of checkpoints:
     • Leaking, overflow
     • Humidity, vibration, collision, temperature
6. Unnecessary things
   • Examples:
     • Equipment components
     • Products
     • Tools and Jigs
     • Spare parts
     • Pipes
   • Examples of checkpoints:
     • Messy
     • Disordered
7. Safety concerns
   • Examples:
     • Incorrect conditions
     • Incorrect indicators
   • Examples of checkpoints:
     • Floor, Steps, Stairs:
       • unevenness, cracks, peeling off, wear
     • Lighting:
       • dark Safety devices; broken, worn stoppers, wear

F-tag Log

F-Tag Tracking

• To track the F-Tags we write as part of AM activities, the team will create an Activity Board called the F-Tag Tracking Centre
• This board will show the “Three Lists”, and keep track of how many F-Tags are written and how many have been completed

Breakdown evidence tag