What Is Mechanical Repair?
- Reactive: something has broken, is failing, or is about to
- Time pressure is high because production is stopped or degraded
- Scope is often unclear until the field service technician investigates
- Diagnostic first, corrective second
Failed bearing on a critical pump
- Line stopped, pump seized or running rough
- Diagnose whether the bearing failed, or misalignment, contamination or overload caused it
- Replace the bearing and address the root cause
Gearbox showing advanced wear or tooth damage
- Increased noise, vibration, or metallic particles in the oil
- Assess whether it can be repaired in situ
- Or needs removal for workshop rebuild, or complete replacement
Hydraulic system lost pressure
- A failed seal, damaged valve or ruptured hose
- Hard to trace in complex circuits
- Requires systematic isolation and testing to pinpoint the source
Conveyor drive seized or overheating
- Stopped, or tripping on overload
- Could be motor, gearbox, belt or chain, or a jammed roller
- Diagnosis under time pressure with production waiting
Coupling failure between motor and driven equipment
- Vibration, noise, or complete disconnection
- The repair may be a replacement coupling
- But misalignment, excessive load or thermal expansion must be identified and corrected
Repair skill set
- Fault diagnosis and problem-solving under pressure
- Ability to improvise when parts are not immediately available
- Confidence to make sound decisions quickly
- Often experienced generalists who have seen many failure modes
What Is Mechanical Maintenance?
- Planned: the equipment may be running perfectly well
- Preventive or condition-based, inside a scheduled maintenance window
- Scope is usually well-defined before the technician arrives
Scheduled bearing replacements
- Rotating equipment at fixed intervals
- Based on manufacturer recommendations or condition monitoring data
Pump overhauls
- Disassembly and inspection
- Seal and impeller replacement
- Reassembly and performance verification against baseline data
Alignment verification and correction
- Laser alignment of motor-pump and motor-gearbox sets
- Coupled rotating equipment brought to manufacturer tolerances
Belt and chain replacement
- Scheduled replacement before end of life
- Including tensioning and alignment checks
Lubrication programme execution
- Systematic greasing and oil changes to a defined schedule
- Correct lubricants and correct quantities
Valve servicing and leak testing
- Disassembly, cleaning, seat inspection
- Re-lapping or replacement of internals
- Reassembly and leak testing to specification
Condition-based replacements
- Components flagged by vibration analysis, oil analysis or thermography
- Planned work triggered by monitoring data, not the calendar
Maintenance skill set
- Methodical execution, precision and attention to detail
- Thorough documentation against baseline values
- Often specialists in specific equipment types following defined procedures
- They work to tolerances, not timelines
Why the Distinction Matters for Hiring
A vague “mechanical technician needed” brief attracts both types, which creates confusion around scope, pricing and expectations.
Some experienced technicians are comfortable with both, but many specialise. Specifying which you need helps both sides.
How to Write a Better Mechanical Brief
The single most effective thing you can do is state whether the work is repair or maintenance. It lets technicians price accurately, bring the right tools, and set realistic expectations.
For a repair brief, include
- What failed, or what symptoms are present
- When it started and how it has progressed
- What steps have already been taken
- Equipment make, model and serial number
- Whether the equipment is running or stopped
- Urgency level and production impact
For a maintenance brief, include
- Equipment scope: the list of assets to be serviced
- Specific tasks required per asset
- Whether spare parts are available or need sourcing
- Maintenance window timing and duration
- Documentation and reporting expectations
- Any condition monitoring data available
Vague brief vs specific brief
Vague: “mechanical technician needed for pump work”. This produces vague quotes.
Specific: “scheduled overhaul of two Grundfos CR 45-3 vertical multistage pumps, mechanical seals and impellers to be replaced, laser alignment after reassembly, maintenance window 15 to 17 March”. This tells the technician exactly what is needed and allows accurate pricing.
Disclaimer: This guide is provided for general informational purposes only and does not constitute professional, legal, or financial advice. All rates, timelines, and market data referenced are indicative estimates based on general market observations and may not reflect current conditions. Actual costs, qualifications, and regulatory requirements vary by country, industry, and project. Always verify information with relevant local regulations, obtain professional advice where appropriate, and request multiple quotes before committing to any engagement. FindFST accepts no liability for decisions made based on the content of this guide.
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