Field reference — industrial maintenance

When the machine won't hold still,
start from the symptom.

Troubleshooting guides written the way faults are actually worked: confirm the symptom, rank the causes, isolate energy, test, fix, verify. No filler between you and the answer.

Contents

1. hand-tools Hand ToolsCutting, gripping, and fastening tools, with guidance on proper use and care.
2. hydraulics-pneumatics Hydraulics & PneumaticsCylinders, valves, hoses, air preparation, and troubleshooting for leaks and drift.
3. steam-systems Steam SystemsSteam traps, condensate, pressure-reducing valves, and water hammer.
4. sensors-plc Sensors & PLCProximity and photoelectric sensors, PLC I/O wiring faults, and mechatronics.
5. power-transmission Power TransmissionBearings, shafts, chains, belts, couplings, and alignment.
6. fasteners FastenersBolts, threads, torque, and rescue methods for stuck or stripped fasteners.

Recently revised

• Bearing Running Hot After Replacement — Normal Break-In or Stop Now? 2026-07-19
• Why a Stopped Pneumatic Cylinder Drifts 2026-07-16