Good maintenance should prevent faults, not only respond after a stop. A simple recorded routine helps operators notice changes in the jet, cutting, selvage, belts, lubrication, sound, vibration, and fabric quality before a small issue causes repeated downtime.
ROUTINE MAINTENANCE
Clean, lubricate, inspect, and record
Create daily and periodic checks based on running hours and factory conditions. Clean the loom and water circuit, check oil, fasteners, belts, nozzle direction, scissors, leno devices, and the weft detector. Record unusual sound, vibration, alarms, and fabric defects so small changes can be noticed early.
- Cleaning, water filtration, and drainage
- Lubrication points, oil level, and oil condition
- Fasteners, anchors, belts, and moving links
- Nozzle direction, scissors, leno devices, and weft detector
COMMON FAULTS
Check the affected system before changing settings
If a fault appears, first identify the system involved. Common problem areas include scissors, leno tension, nozzle direction, feeder or belt position, weft detection, and pump flow after a fabric change. Check the mechanical condition and timing before altering several settings. Finding the cause is more reliable than repeated adjustment.
WEFT INSERTION
Troubleshoot the pump and nozzle from the root cause
When insertion becomes weak or unstable, inspect the plunger, spring, cam linkage, check valves, nozzle, clamp, timing, remaining water, and shed. Higher pressure should not be used to hide a worn part, incorrect timing, poor yarn preparation, or a blocked jet path.
WATER QUALITY
Keep the water clean and consistent
Changes in water quality can affect the pump, nozzle, filtration, corrosion risk, fabric appearance, and running stability. Monitor filtration and changes in hardness, pH, conductivity, suspended solids, and biological growth. Water treatment should be based on the actual local source rather than one universal value.
INSTALLATION AND SUPPORT
Build a reliable baseline before production
Before production begins, correct leveling, anchoring, alignment, power, water, drainage, and reference-fabric settings should establish a reliable baseline. Operators should understand safe operation, style changes, alarms, cleaning, and daily checks. Documentation, critical spares, warranty, remote support, and on-site service should also be confirmed before shipment.
DIAGNOSTIC EXAMPLE
When weft arrival changes after a fabric change
Use the previous recorded settings and inspect one system at a time. Do not increase pump pressure before checking the mechanical condition, jet path and timing.
- Symptom
- Late, unstable or missing weft arrival after changing the fabric style
- First checks
- Yarn path, feeder, clamp, nozzle direction, remaining water, shed and detector
- Mechanical checks
- Pump plunger, spring, cam linkage, check valves, water lines and filters
- Verification
- Record the corrected setting, jet condition, alarm status and resulting fabric quality
This is a root-cause inspection sequence, not evidence that every weft stop has the same cause.
Confirm the service scope before the machine ships
WEAVEMECH can review the installation conditions, operator needs, spare-parts plan, and technical documentation with you before the final machine configuration is released.