Refinery Maintenance Technician — Job Description
Hands-on craft role responsible for safe, efficient maintenance of refinery process equipment to maximize reliability, integrity, and availability.
I. Core Responsibilities
- I.1 Preventive & corrective maintenance — Execute PMs/CMs on rotating and static assets (pumps, compressors, gearboxes, fans, heat exchangers, furnaces, columns, vessels, piping, valves, seals, bearings) per work orders and job plans.
- I.2 Safety & permits — Apply LOTO, gas testing, hot work control, confined space entry, and line break/blinding; comply with permit-to-work and isolation standards.
- I.3 Troubleshooting & diagnostics — Systematically identify root causes of vibration, temperature, leakage, electrical faults, flow/pressure anomalies, and instrumentation drift; propose corrective actions.
- I.4 Precision maintenance — Perform laser alignment, soft-foot correction, belt/sheave alignment, torque/tension bolting, gasket makeup, balancing, and run-in checks to OEM tolerances.
- I.5 Static equipment work — Open, clean, and reassemble exchangers; replace gaskets; support bundle pulls; assist with vessel internals, tray/packing work, and flange management including controlled bolting.
- I.6 Rotating equipment overhauls — Dismantle, inspect, and rebuild centrifugal/PD pumps and small compressors; replace bearings/mechanical seals; set clearances; verify rotation and lubrication.
- I.7 Instrument/electrical support (as authorized) — Basic loop checks, transmitter/valve positioner calibration, device configuration, continuity/insulation testing, and motor checks in coordination with discipline leads.
- I.8 Turnarounds/outages — Execute heavy maintenance scopes during TARs: blinding/de-blinding, internal inspections support, hydro/pneumatic tests, leak tests, reinstatement, and punchlist clearance.
- I.9 Condition monitoring — Collect vibration/temperature/oil data; perform UT spot thickness readings; report trends and trigger corrective work requests.
- I.10 Materials & spares — Identify parts, verify specifications, request replacements, manage consumables, and ensure correct materials at job site (gaskets, fasteners, lube, seals).
- I.11 Documentation — Close work orders with as-found/as-left notes, measurements, photos; update torque and alignment records; hand over to operations with functional tests.
- I.12 Emergency response — Support unit upsets and unplanned downtime; perform safe, rapid equipment isolation, temporary repairs, and restart support.
II. Required Skills & Demands
II.A Technical skills
- II.A.1 Rotating equipment — Bearing/seal replacement, impeller clearance setting, baseplate/soft-foot correction, laser alignment, belt drive setup, and vibration symptom recognition.
- II.A.2 Static equipment & piping — Flange joint integrity, gasket selection, torque/tension methods, hot/cold bolting, valve maintenance, hydro/pneumatic test practice, and bolt stress basics.
- II.A.3 Instrumentation basics — Pressure/flow/level/temperature device calibration, control valve packing/actuator checks, loop verification, and fieldbus/HART device configuration.
- II.A.4 Electrical basics — Motor terminal checks, insulation resistance, continuity, lock-out tagging, MCC interface; interpret one-lines and motor data plates (within authorization limits).
- II.A.5 Drawings & specs — Read PFDs/P&IDs, isometrics, GA drawings, wiring diagrams, loop sheets, OEM manuals; apply tolerances and torque tables.
- II.A.6 Condition monitoring — Infrared thermography basics, ultrasound listening, oil sampling practices, UT thickness gauging, and interpreting key trends to trigger maintenance.
- II.A.7 Rigging & lifting — Select slings/shackles, calculate loads/centers of gravity, and guide lifts with certified riggers; adhere to lift plans.
- II.A.8 QA/QC — Use checklists, verify critical measurements, witness NDE, pressure test, and document acceptance criteria.
II.B Soft skills
- II.B.1 Safety leadership — Hazard identification, stop-work authority, and permit discipline.
- II.B.2 Communication — Clear shift handovers, concise work-order notes, and effective radio/field comms with operators and contractors.
- II.B.3 Teaming & mentoring — Work in multi-craft crews; coach junior technicians and contractors.
- II.B.4 Planning mindset — Provide accurate job feedback for planners; suggest PM optimizations.
- II.B.5 Problem solving — Apply RCA tools (5-Why, fishbone) and data-driven troubleshooting.
II.C Physical demands & certifications
- II.C.1 Physical — Climb ladders/stairs, work at height and in confined spaces, lift up to 25–35 kg, kneel/crouch, and work in hot, noisy, and potentially contaminated areas with appropriate PPE and respiratory protection.
- II.C.2 Medical & fit — Fit-test for respirators, hearing conservation, heat stress awareness.
- II.C.3 Mandatory training — Permit-to-work, LOTO, hot work, gas testing, confined space entry, rigging/slinging, H2S awareness, electrical safety, fire watch; craft competency card as applicable.
III. Typical Tools, Software, and Equipment
- III.1 CMMS/EAM — Enterprise maintenance modules for work orders, materials, and time confirmation; mobile work execution apps and digital permit-to-work.
- III.2 Precision tools — Laser shaft alignment kits, dial indicators, feeler gauges, micrometers, torque wrenches, hydraulic bolt tensioners, stud heaters, and flange management tools.
- III.3 Electrical/instrument — True-RMS multimeters (CAT-rated), insulation resistance testers, clamp meters, loop calibrators, HART/Fieldbus communicators, portable oscilloscopes, and function generators.
- III.4 Condition monitoring/NDE — Portable vibration analyzers, thermal imagers, ultrasound detectors, oil sampling kits, ultrasonic thickness gauges, dye penetrant/MT kits (with NDE support), leak detectors.
- III.5 Lifting & access — Chain hoists, come-alongs, jacks, rigging gear, scaffolds, manlifts (with certification), and specialty pump seal tools.
- III.6 Shop equipment — Presses, pullers, lathes (light), grinders, hydraulic power packs, cleaning tanks, and test benches.
- III.7 Safety gear — Gas detectors, air monitoring pumps, intrinsically safe lights/radios, eyewash checks, and barricading kits.
Engineering formulas commonly referenced (for diagnostics and precision work)
- Electrical — Ohm’s Law: \(V = I \, R\); Power: \(P = V \, I\); Three-phase power (balanced): \(P = \sqrt{3}\, V_L\, I_L\, \text{PF}\).
- Torque & power — Torque from power and speed: \(T\,[\text{N·m}] = \dfrac{9\,549 \, P\,[\text{kW}]}{N\,[\text{rpm}]}\); Basic lever torque: \(T = F \, r\).
- Pump affinity laws — At constant geometry/fluids: \(Q \propto N\), \(H \propto N^2\), \(P \propto N^3\).
- NPSH available — \(\text{NPSH}_a = \dfrac{P_s}{\rho g} + z - \dfrac{P_v}{\rho g} - h_f\).
- Heat exchanger duty — \(Q = U \, A \, \Delta T_{\mathrm{lm}}\).
- Bearing life (L10) — \(L_{10} = \left(\dfrac{C}{P}\right)^{p}\times 10^{6}\ \text{rev},\ \ p=3\ \text{(ball)},\ p=\tfrac{10}{3}\ \text{(roller)}\).
- Availability — \(\text{Availability} = \dfrac{\text{MTBF}}{\text{MTBF} + \text{MTTR}}\).
IV. Work Environment
- IV.1 Location — Onshore refinery process units, tank farms, utilities, and offsites.
- IV.2 Shifts — Day shift with call-out; rotating shifts for critical coverage; extended hours during turnarounds (10–12 hours, 6–7 days/week).
- IV.3 Conditions — High noise, heat, and hydrocarbon exposure; classified areas requiring intrinsically safe tools; frequent work at height and in confined spaces.
- IV.4 Travel — Minimal; occasional vendor shop visits or offsite training.
V. Reporting Lines & Cross-Functional Interfaces
- V.1 Reporting to — Maintenance Supervisor/Area Maintenance Lead.
- V.2 Key interfaces — Operations (panel/field), Inspection/NDE, Process/Mechanical/Electrical/Instrumentation Engineers, Reliability, Planning/Scheduling, HSE, Warehouse/Logistics, and Turnaround teams.
- V.3 Contractor coordination — Guide specialty contractors (rigging, scaffolding, valve shop, exchanger services), verify QA/QC, and ensure permit compliance.
- V.4 Handoffs (Deliverables & Interfaces) — Completed and tested equipment handed to Operations with functional checks; work-order closeout with measurements, alignment/torque records, test certificates, and updated asset condition notes.
VI. Career Ladder & Progression
- VI.1 Next roles — Senior Maintenance Technician ? Lead/Chargehand ? Planner/Scheduler or Reliability Technician/Specialist ? Maintenance Supervisor.
- VI.2 What’s needed to move up — Strong safety performance, high-quality execution on critical equipment, ability to plan scopes/job steps, mentor juniors, and proficient CMMS feedback; additional craft certifications and advanced precision maintenance credentials.
- VI.3 Progression trigger — Typically promoted after 3–5 years on units with =2 major turnarounds completed plus demonstrated ownership of critical-path jobs and attainment of advanced alignment/bolting and condition monitoring certifications. [Estimated]
Toolchain Snapshot
- Software — CMMS/EAM, digital permit-to-work, mobile work execution, vibration analysis suite.
- Measurement — Laser alignment system, vibration analyzer, IR camera, loop calibrator, HART/Fieldbus communicator, UT thickness gauge, insulation tester, torque/tension tools.
- Safety — Gas detector, LOTO devices, confined space kit, intrinsically safe radios/lighting.
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