Glass processing machinery is designed to operate reliably in demanding production environments, but even well-maintained equipment will experience wear over time. Some problems are obvious. A machine may stop completely or display a persistent fault. Others develop more gradually through unusual noises, reduced processing quality, slower operation or increasingly frequent adjustments. Recognising these warning signs early can help prevent a relatively minor issue from becoming a more disruptive breakdown. It may also reduce unnecessary downtime and help protect other components within the machine.

So, when is routine operator maintenance enough, and when should you call a glass machinery engineer?

New or Unusual Noises

Operators who work with machinery every day quickly become familiar with how it normally sounds. A new grinding, knocking, squealing or rattling noise should therefore be treated as an indication that something has changed. Possible causes could include worn bearings, drive components, rollers, belts or other moving parts. The occasional unfamiliar sound does not necessarily indicate a serious fault, but a noise that persists, becomes louder or is accompanied by changes in machine performance deserves further investigation. Continuing to operate equipment with an unidentified mechanical problem can sometimes place additional stress on surrounding components, potentially turning a relatively straightforward repair into something more extensive.

Increased or Unusual Vibration

A change in vibration can provide another early warning that machinery is no longer operating as intended. A machine that previously ran smoothly but has started vibrating noticeably may have a component that is worn, loose or incorrectly aligned. The concern increases if the vibration becomes progressively worse, appears during a particular part of the operating cycle or begins to affect processing accuracy. If normal operator checks do not reveal an obvious cause, it may be worth arranging a more detailed inspection before the issue develops further.

Production Quality Has Become Inconsistent

Machinery does not have to stop working completely for a fault to affect production. Changes in the quality of the finished product can sometimes provide one of the earliest indications that something requires attention. On cutting equipment, this might show itself as reduced accuracy or inconsistent results. On glass washing machinery, operators may begin to notice streaking, residue, water marks or deterioration in drying performance. Other machinery may start producing alignment problems, irregular sealing or inconsistent positioning. The important point is consistency. If operators are making increasingly frequent adjustments simply to maintain the same level of quality, the underlying cause may be wear or a developing fault rather than normal production variation.

The Same Fault Keeps Returning

An occasional machine interruption can sometimes have a straightforward explanation. Repeated stoppages are different. If the same alarm, error or interruption keeps returning, particularly during the same stage of the operating cycle, repeatedly resetting the machine may only be treating the symptom rather than addressing the cause. Recurring issues could potentially relate to sensors, controls, pneumatic systems, drive components or other machine functions. Keeping a record of when the fault occurs and what the machine is doing immediately beforehand can make subsequent diagnosis much easier. An engineer can then investigate the underlying cause rather than simply getting the machine running again temporarily.

Production Speed Is Gradually Declining

A sudden breakdown attracts immediate attention. Gradual deterioration in performance can be much easier to overlook. Processing cycles may begin taking slightly longer, glass may not travel through the machine as smoothly as before, or operators may find themselves intervening more frequently. Over time, reduced performance can simply become accepted as the machine’s new normal. However, a decline in productivity can sometimes indicate wear, incorrect adjustment or a component approaching the end of its useful service life. Identifying the cause early may allow performance to be restored before it develops into a more disruptive failure.

Parts Are Wearing or Failing More Frequently

Bearings, belts, wheels, filters, brushes and other wear components are expected to require replacement periodically throughout the life of industrial machinery. What deserves further attention is when the same component starts failing noticeably more often than expected. Replacing a worn part may solve the immediate problem, but repeated failure can sometimes point to an underlying issue such as poor alignment, excessive loading or wear elsewhere within the machine. In these situations, it is worth investigating why the part is failing rather than continuing to replace it.

Bassra supplies a range of glass and window machinery spare parts, including components for glass washers, hot melt equipment, desiccant dispensers and butyl extruders.

 

Your Glass Washer Is No Longer Cleaning or Drying Properly

Glass washing machinery plays an important role in production quality, particularly where glass is being prepared for insulated glass manufacture. A washer that begins leaving residue, marks or excess moisture on the glass should therefore be investigated. Changes in brush performance, water quality, filtration, bearings, drive components or the drying system can all affect the finished result. Routine cleaning and maintenance should always be considered first. However, if normal maintenance no longer restores the machine to its expected performance, there may be a more specific mechanical or operational issue that requires attention.

Pneumatic Movement Has Become Slow or Inconsistent

Many glass and window machinery systems use pneumatics for clamping, positioning, lifting and other machine functions. Changes in pneumatic performance may show themselves through slower movement, inconsistent clamping, loss of pressure or incomplete machine cycles. Operators may also notice air leakage or components failing to return cleanly to their normal position. Small pneumatic problems can affect both productivity and accuracy even while the machine remains operational. If the issue cannot be identified through normal checks, further diagnosis may be needed.

Electrical or Control Problems Keep Returning

Modern glass machinery can incorporate sensors, PLC controls, touchscreens, motors, switches and safety systems alongside traditional mechanical components. Intermittent electrical faults can be particularly difficult to deal with because the machine may behave normally between failures. Recurring alarms, unresponsive controls, sensors working inconsistently or motors stopping unexpectedly can all point towards a problem that requires more detailed investigation. Repeatedly restarting or resetting the machinery may restore operation temporarily, but it does not establish why the fault occurred. Persistent electrical or control issues should therefore be diagnosed by suitably competent personnel.

There Is Any Concern About Safe Operation

Some machinery problems primarily affect productivity. Others may affect safe operation. Issues involving emergency stops, guards, safety sensors, uncontrolled movement, electrical systems or other safety-related components should not be ignored simply because the machine can still operate. Where there is any doubt about whether the machinery is safe to use, the appropriate workplace safety procedures should be followed and the equipment assessed by a suitably competent person. Production output should never take priority over safe operation.

When Is Routine Maintenance Enough?

Not every change in machine performance requires an engineer. Routine operator checks, cleaning, lubrication where appropriate and replacement of normal consumable components can resolve many everyday issues. The important distinction is whether the cause of the problem is understood. If a dirty filter is causing reduced performance and cleaning it immediately restores normal operation, the solution is relatively clear. If the same fault repeatedly returns, repairs do not last or the reason for the problem is uncertain, further investigation becomes more important. The same applies when several symptoms begin appearing together. A machine that is becoming slower, noisier and less consistent may be signalling a wider mechanical issue rather than three unrelated minor problems.

Why Early Diagnosis Can Reduce Downtime

It can be tempting to keep machinery operating until a fault prevents production altogether. However, complete failure rarely happens at a convenient time. Identifying problems while machinery is still operational can give manufacturers greater flexibility to plan repairs, source replacement components and minimise disruption to production. Early diagnosis can also help prevent one worn or incorrectly operating component from placing additional strain on other parts of the machine. This is one of the reasons planned glass machinery maintenance and preventative inspections can be valuable alongside reactive repairs.

What Information Should You Have Before Calling an Engineer?

Giving an engineer useful information about the fault can make diagnosis more efficient. Before making contact, it is worth recording:

• the make and model of the machine;
• what the machine is doing incorrectly;
• when the problem first appeared;
• how frequently it occurs;
• any error codes displayed;
• any unusual noise, movement or behaviour;
• recent maintenance, repairs or replacement parts.

Photographs or short videos can also be useful where appropriate, particularly when dealing with an intermittent problem that may not occur while the engineer is examining the equipment.

Glass Machinery Servicing and Technical Support from Bassra

Bassra Machine Tools has been involved in the design, manufacture and supply of glass insulating machinery since 1983, supporting customers in the UK and internationally.

Alongside supplying machinery and spare parts, Bassra provides machinery servicing and technical support, including fault diagnosis, preventative inspections, repairs and parts replacement. Engineers can also visit customer facilities where on-site troubleshooting is required.

Speak to the Bassra Team

If your glass or window machinery is experiencing recurring faults, reduced performance or other signs that something isn’t operating as it should, our team can help assess the issue and advise on the most appropriate next steps.

Get in touch with the Bassra Machine Tools team to discuss your machinery requirements.

Frequently Asked Questions

When should I stop using a faulty glass machine?

If a fault could affect safe operation or potentially cause further damage, the appropriate workplace procedures should be followed and the machinery assessed by suitably competent personnel. Recurring faults, unusual noises and deteriorating performance are also good reasons to investigate rather than allowing the problem to continue indefinitely.

Can an engineer diagnose a fault that only happens occasionally?

Yes, although intermittent faults can be more difficult to diagnose. Recording when the problem occurs, any error messages and the behaviour of the machine can provide useful information. Photographs or video may also help where appropriate.

What information should I provide when reporting a machinery problem?

Where possible, provide the machine make and model, a description of the problem, when it started, how frequently it occurs and any error codes being displayed. Information about recent maintenance or replacement parts can also be useful.

Is older glass machinery worth repairing?

Age alone does not determine whether a machine remains viable. Its overall condition, production requirements, availability of replacement components, repair costs and expected remaining service life should all be considered.

Can regular servicing help prevent unexpected breakdowns?

Preventative inspections and routine maintenance can help identify wear, deterioration and developing faults before they result in complete machine failure. They cannot eliminate every unexpected problem, but they can reduce the likelihood of avoidable breakdowns.