Water must reach the required blade location continuously. A running pump does not prove effective delivery. Separate water and slurry from electrical connections; do not wipe a wet or damaged connection and immediately reuse it.
This is reference content written and revised with AI. It has not been verified or approved by a professional. Review by a suitably qualified professional and site authorization are required before use.
Stop before starting
Hold cutting for unverified blade, guard, water, electrical protection or small-piece support. Stop for water loss, increased dust, binding/vibration, suspected electrical fault, slurry escape, waterproofing damage or expired adhesive conditions.
1. Legal and technical scope
| Basis | Scope and limits |
|---|---|
| OSHA 1926.1153 | Construction silica: complete Table 1 controls or exposure-assessment route and housekeeping. |
| OSHA stationary masonry saw guidance | Integrated continuous blade water feed and indoor dust-control guidance. |
| OSHA 1926.404 | Construction wiring and applicable ground-fault/grounding protection requirements. |
For construction silica work, match a stationary tile saw to 1926.1153 Table 1 stationary masonry saws and fully implement its integrated water-feed, manufacturer and indoor-exhaust conditions; otherwise apply the alternative exposure-control route. Wet cutting does not remove electrical, blade or slurry hazards. Apply the applicable 1926.404 supply-protection route and actual equipment instructions; its GFCI/assured-grounding provisions have defined scope and are not interchangeable casual checks. Resolve State Plan requirements.
2. Scope and required inputs
Included work
Wet-table-saw cutting of ordinary ceramic floor tile within machine capacity, followed by laying with the specified cement-based adhesive on an accepted new indoor substrate/waterproofing system.
Separate assessment
Large slab/stone lifting, facade tile, dry high-speed cutting, substrate grinding, structural crack repair, electrical repairs and epoxy adhesive/grout work need separate review.
| Required input | Evidence to obtain |
|---|---|
| Accept tile and base | Tile and substrate; Waterproofing record; Adhesive and SDS; Cut schedule |
| Set cutting zone | Stack and handling; Supply protection; Water route; Zone boundary |
| Inspect blade and support | Blade and model; Guard and fasteners; Table and guide; Hand clearance |
| Cut with water | Water and dust; Vibration and blade; Hand position; Supply and slurry |
No actual equipment model, SDS, site measurements, design calculations or authorization record was supplied. Product-specific limits and methods must be verified before use. Federal OSHA is a baseline within its scope; determine the applicable State Plan and local requirements. Manufacturer guidance is not government approval; an incorporated standard differs from voluntary guidance. No nationwide-compliance or expert-approval claim is made.
3. Eight-stage JSA
| Job stage | Hazards and effects | Failure factors | Technical and procedural controls | Site verification | P | S | R | A |
|---|---|---|---|---|---|---|---|---|
| 1. Accept tile and base | 1. Poor bond2. Waterproofing damage3. Chemical exposure4. Wrong dimensions | 1. Base not accepted2. Product mismatch3. SDS absent4. Cut list wrong | 1. Review substrate release2. Match tile and adhesive3. Check product instructions4. Confirm cut dimensions | 1. Tile and substrate2. Waterproofing record3. Adhesive and SDS4. Cut schedule | ||||
| 2. Set cutting zone | 1. Tile drop2. Electric shock3. Slurry slip4. Pedestrian contact | 1. Unstable stack2. Wet connectors3. Water uncontained4. Shared route | 1. Support tile stacks2. Protect electrical supply3. Contain water and slurry4. Separate cutting and travel | 1. Stack and handling2. Supply protection3. Water route4. Zone boundary | ||||
| 3. Inspect blade and support | 1. Blade failure2. Blade contact3. Unexpected start4. Small-piece ejection | 1. Wrong blade2. Guard missing3. Powered adjustment4. Piece unsupported | 1. Isolate for adjustment2. Match blade and direction3. Check guards and guides4. Plan safe small cuts | 1. Blade and model2. Guard and fasteners3. Table and guide4. Hand clearance | ||||
| 4. Cut with water | 1. Laceration2. Flying fragments3. Silica exposure4. Electric contact | 1. Hands close2. Excessive feed3. Water interrupted4. Slurry reaches plug | 1. Keep specified guards2. Support and feed correctly3. Maintain water delivery4. Stop abnormal operation | 1. Water and dust2. Vibration and blade3. Hand position4. Supply and slurry | ||||
| 5. Mix and lay | 1. Cement skin injury2. Eye splash3. Knee strain4. Failed adhesion | 1. Unapproved water2. Splash mixing3. Fixed kneeling4. Working time exceeded | 1. Follow mix and timing2. Protect skin and eyes3. Vary posture and reach4. Check bonding conditions | 1. Batch and mix2. Application time3. Skin and knee protection4. Bonding observations | ||||
| 6. Cure and restrict traffic | 1. Tile movement2. Trip at edge3. Poor bond4. Membrane damage | 1. Early traffic2. Edges unmarked3. Cure assumed4. Carts cross work | 1. Close each new section2. Mark edges and transitions3. Follow cure conditions4. Redirect material route | 1. Lay time and cure2. Area boundary3. Alignment and level4. Traffic release | ||||
| 7. Hold process fault | 1. Repeat dust exposure2. Blade damage3. Hidden bond defect4. Electric injury | 1. Water alarm ignored2. Blade not checked3. Defect covered4. Wet supply reused | 1. Stop and isolate2. Inspect delivery and tool3. Review affected tiles4. Refer electrical defects | 1. Fault location2. Water and blade3. Base and membrane4. Repair and retest | ||||
| 8. Clean and hand over | 1. Coastdown contact2. Dried slurry dust3. Waste release4. Early access | 1. Live cleaning2. Dry sweeping3. Unapproved drainage4. Cure limits lost | 1. Wait and isolate2. Collect slurry safely3. Use approved waste route4. Transfer cure restrictions | 1. Tool safe state2. Slurry collection3. Waste and floor4. Recipient and limits |
P = likelihood; S = severity; R = risk under the site method; A = site-defined acceptance/authorization. These actual assessment cells are blank. A low score never overrides a missing safeguard or a legal or manufacturer restriction.
4. Fictional scenario and failure mechanisms
This illustration provides educational context. It is not an actual incident photograph or evidence of equipment suitability; any AI-generated depiction is illustrative only.
The scenario and record comparisons are fictional teaching examples, not records of real incidents, measurements, inspections, signatures or approvals.
| Stage | Fictional situation |
|---|---|
| Initial situation | A fictional helper cuts floor tiles on a wet table saw. |
| Changed condition | Water flow weakens and visible dust appears with one tile remaining. |
| Failure path | Production continues because the cut still looks good. |
| Possible outcome | Dust exposure and blade damage can increase. |
| Prevention barrier | Stop safely, isolate, inspect delivery and blade condition, then verify restored controls before restarting. |
Failure mechanisms
Water must reach the required blade location continuously. A running pump does not prove effective delivery. Separate water and slurry from electrical connections; do not wipe a wet or damaged connection and immediately reuse it.
Small offcuts need a permitted support and hand-clearance arrangement. If the table and guide cannot hold the piece safely, change the cutting method. Do not retrieve fragments or twist the tile while the blade moves.
Adhesive working/open time and installed-tile curing time are separate. Track product mixing/application conditions, protect waterproofing and keep transport carts away from uncured work. Collect slurry before it dries and becomes airborne dust.
Work sequence: Accept tile and base → Set cutting zone → Inspect blade and support → Cut with water → Mix and lay → Cure and restrict traffic → Hold process fault → Clean and hand over. This is a teaching flow, not a device drawing or a complete operating procedure.
5. Conditional decisions and common errors
| Situation | Required action | Evidence | Proceed when |
|---|---|---|---|
| Water flow reduced | Stop cutting | Water path and blade inspection | Delivery restored |
| Piece too small | Change support or method | Hand clearance and permitted jig | Safe support available |
| Adhesive time exceeded | Hold affected material | Batch and product timing | Disposition accepted |
| Tile laid | Maintain area closure | Cure conditions and inspection | Traffic released |
Similar observations, different decisions
The scenario and record comparisons are fictional teaching examples, not records of real incidents, measurements, inspections, signatures or approvals.
| Observation | Insufficient conclusion | Required distinction |
|---|---|---|
| Tile cuts cleanly | Cut appearance | Dust/electrical controls separate |
| Adhesive soft | Physical feel | Working time not proved |
| Pump runs | Motor operating | Blade delivery may fail |
6. Roles and responsibilities
| Role | Responsibility |
|---|---|
| Work supervisor | Confirm tile and substrate and the task scope, resources, interfaces and stop authority. |
| Qualified technical reviewer | Review stack and handling, model limits, compatibility and unresolved technical conditions within assigned competence. |
| Work crew | Apply the listed controls, report changes and stop when evidence or safeguards are missing. |
| Inspector / assessor | Record actual batch and mix and other relevant checks; do not mark unverified conditions as accepted. |
| Handover authority | Reconcile tool safe state, restrictions and outstanding actions before the next task. Role labels do not establish a legal credential. |
Supervision and handover focus
| Stage | Management action | Evidence |
|---|---|---|
| Accept tile and base | 1. Record tile and substrate2. Record waterproofing record3. Record adhesive and sds | 1. Tile and substrate2. Waterproofing record3. Adhesive and SDS |
| Set cutting zone | 1. Record stack and handling2. Record supply protection3. Record water route | 1. Stack and handling2. Supply protection3. Water route |
| Cut with water | 1. Record water and dust2. Record vibration and blade3. Record hand position | 1. Water and dust2. Vibration and blade3. Hand position |
| Mix and lay | 1. Record batch and mix2. Record application time3. Record skin and knee protection | 1. Batch and mix2. Application time3. Skin and knee protection |
| Hold process fault | 1. Record fault location2. Record water and blade3. Record base and membrane | 1. Fault location2. Water and blade3. Base and membrane |
| Clean and hand over | 1. Record tool safe state2. Record slurry collection3. Record waste and floor | 1. Tool safe state2. Slurry collection3. Waste and floor |
7. Hold points and record comparison
| Hold point | Evidence before release | Actual approval |
|---|---|---|
| HP-0 Scope | Wet-table-saw cutting of ordinary ceramic floor tile within machine capacity, followed by laying with the specified cement-based adhesive on an accepted new indoor substrate/waterproofing system. | |
| HP-1 Set cutting zone | Stack and handling; Supply protection; Water route; Zone boundary | |
| HP-2 Cut with water | Water and dust; Vibration and blade; Hand position; Supply and slurry | |
| HP-3 Hold process fault | Fault location; Water and blade; Base and membrane; Repair and retest | |
| HP-4 Clean and hand over | Tool safe state; Slurry collection; Waste and floor; Recipient and limits |
Hold points are internal project checks. They are not universal statutory permits and do not grant work permission. Reassess after defects, changed conditions and shift changes.
Record comparison
The scenario and record comparisons are fictional teaching examples, not records of real incidents, measurements, inspections, signatures or approvals.
The boxes are static record prompts, not interactive or saved approvals. A tick does not establish suitability or permission to restart. Record the evidence, person, time and unresolved issues; retain the change history.
| Record | Insufficient record | Record checklist |
|---|---|---|
| Accept tile and base | Only marked “OK” | □ Tile and substrate□ Waterproofing record□ Adhesive and SDS□ Cut schedule |
| Cut with water | Only marked “OK” | □ Water and dust□ Vibration and blade□ Hand position□ Supply and slurry |
| Hold process fault | Only marked “OK” | □ Fault location□ Water and blade□ Base and membrane□ Repair and retest |
| Clean and hand over | Only marked “OK” | □ Tool safe state□ Slurry collection□ Waste and floor□ Recipient and limits |
8. Site checklist and emergency response
| Site check | Actual result | Person / action |
|---|---|---|
| Accept tile and base: Tile and substrate; Waterproofing record; Adhesive and SDS; Cut schedule | ||
| Set cutting zone: Stack and handling; Supply protection; Water route; Zone boundary | ||
| Inspect blade and support: Blade and model; Guard and fasteners; Table and guide; Hand clearance | ||
| Cut with water: Water and dust; Vibration and blade; Hand position; Supply and slurry | ||
| Mix and lay: Batch and mix; Application time; Skin and knee protection; Bonding observations | ||
| Cure and restrict traffic: Lay time and cure; Area boundary; Alignment and level; Traffic release | ||
| Hold process fault: Fault location; Water and blade; Base and membrane; Repair and retest | ||
| Clean and hand over: Tool safe state; Slurry collection; Waste and floor; Recipient and limits |
Stop work
Hold cutting for unverified blade, guard, water, electrical protection or small-piece support. Stop for water loss, increased dust, binding/vibration, suspected electrical fault, slurry escape, waterproofing damage or expired adhesive conditions.
Emergency response
Stop the tool safely and keep clear of wet electrical equipment. Qualified personnel isolate electrical faults. Follow site first-aid/emergency procedures for cuts or cement exposure and the actual SDS; restrict the area until water, tool and access hazards are controlled.
9. Sources and review limits
Public-source access/review: 2026-10-13.
| Official source | Reviewed scope and limits |
|---|---|
| OSHA 1926.1153 | Construction silica: complete Table 1 controls or exposure-assessment route and housekeeping. |
| OSHA stationary masonry saw guidance | Integrated continuous blade water feed and indoor dust-control guidance. |
| OSHA 1926.404 | Construction wiring and applicable ground-fault/grounding protection requirements. |
No actual equipment model, SDS, site measurements, design calculations or authorization record was supplied. Product-specific limits and methods must be verified before use. Federal OSHA is a baseline within its scope; determine the applicable State Plan and local requirements. Manufacturer guidance is not government approval; an incorporated standard differs from voluntary guidance. No nationwide-compliance or expert-approval claim is made.
10. PDF guidance and FAQ
PDF A covers basic task controls; B focuses on technical failures; C covers supervision, records and handover. The article has eight stages with four items per main cell; each PDF has six key stages with three items per main cell. P/S/R/A, measurements, confirmations and signatures remain blank for actual site assessment.
PDFs are complementary six-stage extracts. Apply all eight body stages and the actual equipment/site procedure.
Can a final cut be made after water stops?
No. Stop and restore the required control before cutting.
Does wet cutting eliminate all silica checks?
No. Apply the complete task-specific control route, including relevant indoor conditions.
Can extra water restore expired adhesive?
Do not improvise. Follow the product method and disposition of material beyond its usable time.
Has a professional verified or approved this document?
No. Public sources and editorial, layout and consistency checks were reviewed using AI. No site inspection or professional technical approval has been performed. Obtain appropriate professional review before use.
11. Revision history and authorship
This is reference content written and revised with AI. It has not been verified or approved by a professional. Review by a suitably qualified professional and site authorization are required before use.
| Date | Version | Change | Review status |
|---|---|---|---|
| 2026-10-13 | US 1.0 | New US edition from assigned Korean source; task decisions, records and PDFs localized. | AI editorial review; no professional technical approval |
Korean edition revision history: 2026-10-08 (v1.0): initial article, sources, fictional analysis and PDF editorial checks. These are editorial records, not professional technical approval. US v1.0 adapts the earlier edition to United States requirements and terminology.
Site reviewers must add their actual qualifications, scope, date and approval only after the review occurs.