Press Wash-Up & Lockout-Tagout SWMS
Press wash-up, blanket change, and cylinder cleaning procedures — multi-source energy isolation (electrical + pneumatic + hydraulic), blanket-wash solvent exposure, captive-key lockout discipline, residual-energy verification.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Press wash-up, blanket changes, and cylinder cleaning on offset and flexographic printing presses expose workers to a convergence of hazards that have caused fatalities and serious crush injuries across the Australian printing sector. Workers reach into nip points and between cylinders while the press is stopped but not always fully isolated from electrical, pneumatic, and hydraulic energy sources — and they handle blanket wash solvents containing aromatic hydrocarbons, glycol ethers, and naphtha distillates with significant inhalation and dermal absorption risks. Under Model WHS Regulation 2025 Chapter 4 Part 4.5 (Plant) and Part 7.1 (Hazardous Chemicals), a documented Safe Work Method Statement is mandatory whenever maintenance, cleaning, or adjustment work occurs on powered plant where guards are bypassed or interlocks defeated. AS/NZS 4024.1603 further mandates a verified isolation procedure with captive-key lockout and stored-energy dissipation before any worker places a body part within the danger zone. This SWMS sets out the multi-source isolation sequence, solvent exposure controls, and verification steps required to discharge the PCBU's primary duty of care under s19 of the WHS Act.
Hazards identified
7 hazards covered, sorted by priority.
Catastrophic crush amputation of hand or arm between blanket and impression cylinders requiring surgical reconstruction or limb loss
Sudden cylinder clamp closure crushing fingers, with degloving injuries and permanent loss of grip function
Acute CNS depression, chronic neurotoxicity, and elevated risk of haematological malignancy from prolonged aromatic hydrocarbon exposure
Contact dermatitis, defatting of skin, systemic toxicity through dermal route bypassing respiratory protection entirely
Second worker re-energises press while first worker still in nip zone, causing fatal entanglement and prosecution under s31 reckless conduct
Spontaneous combustion or ignition from static discharge causing press fire, structural damage, and serious burn injuries to operators
Fall from elevated press platform onto rotating shafts or hard concrete causing fractures, head injury, or secondary entanglement
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Specify automatic blanket wash systems on new press procurement to eliminate manual wash-up entry into the cylinder danger zone entirely under hierarchy preference.
- 2Elimination — Schedule all wash-up tasks during planned shutdowns with full press de-energisation rather than between-run quick cleans where isolation discipline degrades.
- 3Substitution — Replace high-VOC aromatic blanket washes with low-VOC vegetable-ester or water-miscible alternatives meeting flashpoint above 62°C per AS 1940 Class C1.
- 4Substitution — Use pre-saturated wipe systems in sealed dispensers instead of open solvent bottles and loose rags to reduce vapour generation and ignition load.
- 5Engineering — Install captive-key interlock systems on all guards per AS/NZS 4024.1603 with trapped-key sequence preventing energisation until all keys returned to master station.
- 6Engineering — Provide local exhaust ventilation at blanket-wash positions with minimum 0.5 m/s capture velocity verified by anemometer at six-monthly intervals.
- 7Administrative — Implement documented multi-source isolation procedure covering electrical mains, pneumatic supply, hydraulic accumulator bleed, and stored-energy verification using try-test-try methodology before each wash-up.
- 8Administrative — Require every worker entering the danger zone to apply their own personal padlock with unique key to the lockout hasp, with no master override permitted.
- 9PPE — Issue solvent-resistant nitrile or laminated film gloves (breakthrough time greater than 240 minutes against test solvent) with replacement at first sign of degradation.
- 10PPE — Supply organic vapour respirators (A1P2 cartridge) and chemical splash goggles where ventilation cannot maintain exposure below 50% of the workplace exposure standard per Schedule 14.
Applicable Codes of Practice
Mandates risk assessment, guarding, and isolation procedures for any maintenance or cleaning of powered plant where guards are removed or interlocks bypassed.
Specifies the technical isolation sequence including energy verification, captive-key lockout, and stored-energy dissipation required before maintenance access.
Requires SDS register, exposure monitoring against Schedule 14 workplace exposure standards, and atmospheric testing where solvent vapours may exceed action levels.
Sets out the PCBU duty to consult workers, document isolation procedures, and verify competency before assigning wash-up and lockout-tagout tasks.
High-Risk Construction Work triggered
Printing presses qualify as powered plant under Schedule 1 during maintenance, and wash-up work places workers within the danger zone of energy-capable machinery requiring documented isolation.
PCBU must consult affected workers under s47, retain the SWMS for the duration of work plus two years after notifiable incidents, and provide it on regulator request. Penalties for non-compliance are substantial and indexed; current maximum follows the prevailing WHS schedule and may include Category 1 reckless conduct charges where isolation discipline fails.
Who this is for
- →Press operators and assistants in commercial offset printing
- →Maintenance fitters servicing flexographic and web presses
- →Production supervisors managing wash-up shift handovers
- →WHS coordinators in packaging and label manufacturing sites
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
At a regional packaging plant running a six-colour offset press, the night-shift supervisor convenes a pre-start brief at 21:45 before a scheduled blanket change on units three and four. She opens this SWMS on the shared tablet at the press console and walks the two operators through the hazard register, pausing on the residual hydraulic pressure entry and the pneumatic accumulator discharge entry because the press was running at high impression pressure during the prior run. The team agrees to follow the documented multi-source isolation sequence: main electrical isolator locked off, pneumatic supply valve closed and bled at the test port, hydraulic accumulator bled to zero confirmed on the gauge, then a try-start at the console to verify dead. Each operator applies their own red personal padlock to the group lockout hasp and signs the SWMS sign-on register on the tablet. Twenty minutes into the wash-up, one operator notices the local exhaust ventilation alarm flashing amber, indicating capture velocity has dropped below the 0.5 m/s threshold. He stops work, refers back to the engineering control entry, and the supervisor authorises switching to A1P2 respirators as the documented fallback while maintenance investigates the LEV fan. The adjustment is logged as a SWMS variation on the tablet, time-stamped, and countersigned before work resumes.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- AS 2550 — Cranes, hoists and winches; AS 1418 series