Publish Time: 2026-10-30 Origin: Site
A useful Hanwha pick and place machine preventive maintenance checklist connects daily observations, weekly condition checks, and a monthly review of due service work. It covers nozzle condition, feeder indexing, camera visibility, board transport, vacuum stability, lubrication requirements, calibration status, and maintenance records. For a line using Hanwha placement equipment within an SMT production line, the objective is a documented decision: continue production, perform an approved maintenance task, or hold the affected equipment for investigation.
The intervals below are planning windows, not a universal Hanwha service schedule. Your machine manual, installed head, feeder type, operating hours, environment, and site procedures determine the actual tasks and limits. The three accompanying images are illustrative equipment and material-handling scenes, not evidence of a customer maintenance program. Use this checklist to organize model-specific instructions and distinguish a visible symptom from its possible causes.
Start by identifying the equipment and its approved reference condition. A checklist cannot produce a reliable pass/fail decision when technicians use different test points, unspecified consumables, or limits copied from another machine.
Record the machine model, serial number, installed heads, software revision, feeder interfaces, nozzle families, and relevant options. Attach the current maintenance manual and applicable service instructions. Separate operator observations from tasks reserved for trained maintenance personnel. An entry for an SM482 Plus maintenance planning reference, for example, still needs the actual machine configuration and its documentation; the product name alone does not establish service compatibility or acceptance limits.
Define an owner, frequency basis, approved method, acceptance criterion, and escalation route for each task. Frequency may depend on elapsed time, operating hours, contamination, or an event such as a collision. Where the manual gives an hours-based interval, place the due date on the calendar using actual utilization and update it as usage changes. A monthly review should catch overdue work, not replace that interval.
Planning window | Verification focus | Evidence to retain | Decision if abnormal |
|---|---|---|---|
Daily or each shift | Visible condition, alarms, pickup behavior, feeder loading, board transfer | Machine and job IDs, symptom, affected channel or feeder | Correct an approved setup issue or escalate |
Weekly review | Repeated faults, optical cleanliness, transport condition, comparable vacuum readings | Inspection results and trend by asset | Schedule approved cleaning or diagnosis |
Monthly review | Due lubrication, calibration status, recurring defects, spare readiness | Work orders, certificates or verification records, open actions | Assign service and hold unresolved critical conditions |
Event-triggered | Collision, head work, abnormal noise, repeated systematic placement error | Event details and controlled recovery results | Follow the applicable service and release procedure |
Observe normal operation from the designated operator position with guards in place. Opening access areas, removing components, cleaning, or servicing may require isolation of electrical, pneumatic, and other stored energy under the machine manual and site procedure. A stopped program or emergency stop does not by itself establish safe isolation.
Apply the site's ESD controls and material-handling rules as well. A competent technician should be able to tell from the checklist which checks are observational, which require a controlled maintenance state, and which require specialist service. If that distinction is unclear, resolve it before assigning the work.
Daily checks should detect changes early and preserve useful evidence. They should not become a routine of dismantling assemblies that show no problem or repeatedly resetting an alarm until the line runs.
Review pickup rejects and relevant alarms by head, nozzle position, feeder ID, and component. A problem affecting one component may originate in tape presentation or the package definition. Similar errors across several feeders on one pickup channel may justify investigating that channel. These patterns guide diagnosis; they do not prove the failed part.
In the approved inspection state, examine nozzle tips for contamination, chips, bending, blocked openings, and irregular seating. Use the specified inspection and cleaning method. Do not introduce wire probes, abrasives, unapproved solvents, or ultrasonic cleaning simply because they worked on another nozzle type. Quarantine damaged or uncertain parts with their IDs and symptoms. Keep cleaned, inspected nozzles separate from unverified returns.
For replacement planning, use the CP45, CN110, and CN140 nozzle identification reference as a starting point for identification. Confirm the exact part number, head interface, component contact geometry, and approved use before installation. A similar appearance or a shared brand name is insufficient evidence of interchangeability.
Confirm reel identity, orientation, feeder ID, slot assignment, tape width, pitch, loading, and cover-tape routing against the released setup. Look for damaged pockets, inconsistent component position, loose tape debris, and abnormal tape tension using the approved inspection method. Review splice locations and replenishment events when failures cluster around a reel change.
Separate feeder hardware condition from material and setup errors. If the procedure permits a controlled comparison with a verified spare, document which single variable changed. Swapping the feeder, nozzle, reel, and program together can restore output while leaving the cause unknown. The feeder and nozzle matching checks for stable pickup provide additional selection context when recurring trouble involves the component interface.
Record the abnormality, affected asset, immediate action, and unresolved restriction. “Feeder checked” is less useful than a record identifying the feeder, component, error pattern, inspection result, and release decision. If a fault remains unexplained, hand over the condition explicitly rather than leaving the next shift to rediscover it. Keep suspect parts out of the ready-to-use rack until their status is resolved.
Weekly checks are most useful when they compare condition under repeatable circumstances. Select the window around production demand, but preserve the same method so a changing product mix does not obscure deterioration.
Review recognition failures by component, lighting recipe, nozzle position, and job. Where the approved procedure provides a reference image or verification routine, compare results under the prescribed conditions. Check accessible optical surfaces for contamination only in the specified safe state. Use approved materials and methods; do not adjust lenses or camera mounts as a routine response to a dirty image.
A recognition failure after a component substitution may require package or recipe review. A repeated change under the same qualified reference conditions calls for a different investigation. Retain the reference identifier and relevant settings so the next technician can reproduce the comparison. Escalate persistent abnormal results rather than compensating with undocumented recognition changes.
Review board entry, clamping, support, and exit using the approved transport check. Confirm board width settings, support arrangement, sensor condition, and accessible contamination against the job and machine instructions. Pay particular attention after a panel-size change or a repeated board-transfer alarm.
During normal running, observe from outside the guarded area. Never reach into a moving conveyor to judge belt tracking or board clearance. Distinguish a machine transport problem from warped panels, incorrect support, or a downstream station that cannot accept the board. Record where the interruption occurs and whether the machine is waiting for material or blocked at its exit.
Use the manufacturer-defined test point, machine state, and acceptance limits. Record units and whether the reading is gauge pressure, absolute pressure, or another machine-specific indication. Values from different test conditions cannot be compared reliably, even when they appear on the same screen.
Review vacuum observations alongside pickup errors and approved filter or pneumatic inspections. A supply reading alone does not establish the condition at every nozzle. Hanwha's model-specific maintenance accessories illustrate why tooling matters: its listed SM vacuum cleaner identifies particular models, while its feeder maintenance jig identifies SM8P-series pneumatic feeders. Those listings do not establish compatibility with every DECAN machine or electric feeder. Confirm applicability before selecting a cleaning tool or service method.
The monthly meeting should review what is due, what has changed, and which unresolved conditions require service. It is not an instruction to lubricate every axis or recalibrate every machine each month.
Check the lubrication map and service history against actual operating hours and the applicable instructions. Confirm the approved lubricant specification, application point, quantity or method, and any environmental conditions that change the interval. If a point is not clearly identified, obtain the correct instruction before applying lubricant.
Do not assume that an exposed guide, belt, or feeder mechanism requires grease. Some components may have a different maintenance method or no routine user lubrication requirement. Mixing products, applying excess lubricant, or contaminating nearby surfaces can create additional problems. Record the product used and completed task so the next technician does not repeat an application because the record is missing.
When assessing a DECAN L2 configuration for its service requirements, request documentation for the installed assembly and revision. A model-level product page cannot substitute for a lubrication map or justify transferring a procedure from an older machine.
Review the last required verification, current acceptance criteria, reference artifact status, and any events since release. Verification checks whether specified requirements are met. Calibration establishes the relationship between measurement indications and reference values under specified conditions; it does not necessarily involve adjustment. Perform any required calibration or adjustment through the applicable authorized procedure. Treating these activities as a single monthly checkbox can hide unnecessary intervention.
An impact, head disassembly, repeated systematic placement deviation, or a specified service event may trigger checks outside the calendar. Follow the applicable instructions and qualified service route. Do not alter offsets merely to conceal an unresolved mechanical, optical, material, or programming problem. Keep the before-and-after results and the authority that released the adjustment.
Assign an owner and target date to recurring alarms, damaged parts, overdue required service, and unexplained verification failures. Decide which conditions require holding the machine or affected configuration until resolved. The decision should reflect the manual, site quality requirements, and actual risk, not whether the next order is urgent.
Keep a short list of repeat issues across machines. A recurring feeder problem may justify an offline inspection program; a shared consumable problem may require purchasing controls. Close an action only when its verification evidence exists, rather than when a replacement part has been ordered.
Maintenance priorities should reflect the actual job while retaining the machine's mandatory requirements. A stable high-volume run and a line changing products several times a shift create different opportunities for inspection and different sources of error.
When feeders and nozzles return from production, record their IDs, condition, and unresolved symptoms before putting them into storage. Inspect and stage qualified replacements offline where the process allows it. This can reduce pressure to diagnose a suspect part while operators are waiting for the next job, although it requires spare inventory, storage discipline, and verification time.
Avoid assigning every changeover a complete maintenance teardown. Select tasks based on due service, observed condition, and the approved preparation plan. Before buying more equipment, include access, training, tooling, and spare-part identification in the serviceability questions for choosing a Hanwha machine. Those requirements can change the practical staffing and ownership cost of a proposed configuration.
Long or thin panels can make support and transport setup especially important. Small or optically difficult components can make nozzle condition, material presentation, and consistent recognition settings more consequential. Use the released job requirements to choose observations; do not invent tighter machine limits without an approved basis.
For lighting products, the LED board handling and pickup selection considerations help frame questions about panel support and component contact. A maintenance review should check whether the current nozzle, package definition, and handling method remain appropriate after a product change. It should not assume all LED packages tolerate the same contact geometry.
Classify lost time as equipment fault, material shortage, changeover, upstream starvation, or downstream blocking before assigning it to maintenance. A mounter waiting behind a constrained downstream process may be mechanically healthy. Conversely, an intermittent feeder fault can interrupt the connected line even when average placement time looks acceptable.
Use line-balance checks for connected Hanwha mounters when interpreting station-level stoppages. Preserve event timestamps and neighboring-machine states. Maintenance and line balancing then address their respective causes, and a faster nominal placement program does not mask recurring microstops.
A maintenance record should show what changed and why the machine was released. Checkmarks are useful for completion tracking, but measurements and traceable observations make the checklist useful for diagnosis.
Record field | What to capture | Why it matters |
|---|---|---|
Asset and configuration | Machine, head or channel, nozzle, feeder, job, revision | Keeps unlike configurations separate |
Condition before work | Alarm, image, inspection finding, defined reading | Preserves the original symptom |
Method and action | Applicable instruction, task, approved part or consumable | Makes the intervention traceable |
Verification | Test conditions, sample basis, result, acceptance criterion | Supports a defensible release decision |
Closure | Technician, reviewer, time, restrictions, follow-up owner | Prevents unresolved work disappearing at handover |
Keep “not applicable,” “not checked,” and “passed” distinct. If a task could not be completed, state why and who owns the follow-up. Do not use a blank field as an implied pass. For counter-based results, preserve the counter definition and whether resets, retries, or excluded events changed between periods.
Assume, only for illustration, that one defined operating period contains 300 failed pickups out of 100,000 pickup attempts. The failure rate is 300 / 100,000 × 100 = 0.30%. A comparable period after an approved intervention contains 120 failures out of 100,000 attempts, or 0.12%.
The difference is 0.18 percentage points. The relative reduction is (300 − 120) / 300 × 100 = 60%. These are hypothetical results, not a Hanwha performance claim. They do not measure board yield or prove that maintenance caused the change. Compare job mix, components, counter definitions, operating conditions, and sample adequacy before drawing a conclusion. Investigate whether failures moved to another category rather than simply disappearing.
Confirm that tools and loose materials are removed, assemblies are correctly restored, guards and protective functions are returned to their required state, and the work area is ready under the site procedure. Perform the prescribed functional and quality checks with authorized personnel. Do not use production urgency to skip the required first-board or process approval.
Document the result, reviewer, and any restrictions. If the original symptom returns, preserve the failed recovery evidence and reopen the issue. Repeatedly clearing an alarm without a verified cause is not a completed preventive-maintenance action.
Use maintenance findings to prepare service resources and purchasing decisions. The objective is to have the correct instructions, qualified people, and verified parts available when an approved task becomes due.
Separate frequently inspected consumables from specialist assemblies. For each stocked part, record its identifier, compatible configuration, storage requirements, inspection status, and reorder basis. A spare without confirmed compatibility or condition can prolong downtime rather than resolve it.
For example, an electric feeder compatibility and replacement reference can initiate a supplier discussion, but purchasing should confirm the actual feeder interface, tape requirement, machine support, and verification method. Do not substitute a pneumatic-feeder service jig merely because both items are sold for Hanwha equipment. Ask which checks can be performed in-house and which require specialist equipment or service.
Assume a proposed inspection takes 20 minutes and, in a planning scenario, could avoid four interruptions of eight minutes each. The gross interruption time is 4 × 8 = 32 minutes; subtracting the inspection gives a hypothetical 12-minute net time allowance. This is a planning comparison, not a promised saving or measured customer result.
Include isolation, setup, verification, training, and any additional downtime before deciding whether the task has a positive time balance. If the inspection fits into an existing planned stop, record that assumption separately. Mandatory safety and quality tasks remain required even when a short-term time calculation is unfavorable. Validate any proposed interval change through the approved engineering process.
Send the service provider the asset configuration, fault history, relevant readings, affected parts, actions already taken, and recovery results through your authorized channel. State the question to resolve: tool applicability, recurring vacuum deviation, optical verification failure, or another defined issue. This is more actionable than asking for a general “machine overhaul.”
Before a purchase or service visit, request the applicable documentation, required tooling, training scope, acceptance method, and responsibility for release. Keep commercial promises separate from technical requirements until confirmed. The resulting record helps engineering and procurement compare proposals using the same maintenance needs, rather than comparing machine names or spare-part prices alone.
How often should a Hanwha pick and place machine receive preventive maintenance?
Use the schedule for the actual machine and installed assemblies, supplemented by condition and event-triggered checks. Daily observations, weekly reviews, and monthly service planning are useful organizational windows, but they are not universal Hanwha intervals. Operating hours, contamination, component mix, and service history can affect the plan. Record the approved basis for each interval and review it when conditions change. If a required task becomes due between monthly meetings, complete it at its prescribed interval rather than postponing it until the next review.
When should a nozzle be replaced instead of cleaned?
Replace or quarantine a nozzle when inspection finds damage or when it fails the applicable acceptance check after approved cleaning. A blocked opening and a chipped contact surface require different decisions. Appearance alone may not establish suitability, especially when the fault occurs only with a particular component. Confirm identification, approved inspection method, and component compatibility before returning the nozzle to service. Do not regrind a tip or use improvised tools to restore it. Keep the rejected part's symptoms and location in the maintenance record.
Does every recurring pickup error mean the feeder needs repair?
No. Pickup failures can involve material presentation, nozzle condition, package settings, vacuum behavior, or feeder condition. Start by identifying whether the problem follows a reel, component, feeder, or pickup channel. Review loading, pitch, orientation, and replenishment events before changing hardware. Where an approved comparison is available, change one variable at a time and preserve the result. A feeder should enter repair based on relevant evidence, not simply because it occupied the slot where the machine first reported the problem.
Should calibration be performed every month?
Not automatically. Review calibration and verification status monthly if that suits the maintenance plan, but perform the actual task at the interval or event specified for the machine. A collision, head service, or repeatable systematic deviation may trigger a check earlier. Routine adjustment without a verified need can obscure the original condition and consume production time. Use the correct reference, method, acceptance criteria, and qualified personnel. Record both the finding and the release result so the next review can distinguish verification from an adjustment.
What should be checked before production restarts after maintenance?
Complete the recovery procedure required for the work performed. Confirm correct reassembly, removal of tools and loose materials, restoration of protections, and completion of the prescribed functional checks. Then obtain the required process or first-board approval under the site's quality system. The extent of verification depends on what was disturbed; a nozzle exchange and head service need not share the same release scope. Record the configuration, results, responsible personnel, and restrictions. If verification fails, hold the affected equipment or configuration and investigate before release.
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