1️⃣ Preparation

• Check nameplate: Confirm voltage, frequency, power, and enclosure type match your application.
• Inspect motor: Look for shipping damage, check shaft turns freely, and seals are intact.
• Verify site conditions: The mounting base must be level, rigid, and strong enough to handle weight and torque.
• Environmental check: Is it clean? Dry? Ventilated? Does the IP rating match the surroundings?

2️⃣ Mounting

• Align the motor on its base or mounting feet.
• Ensure base is flat and level — uneven mounting causes misalignment, vibration, and bearing stress.
• Use shims if needed to level the motor.
• Bolt motor down securely but don’t overtighten — use lock washers or thread-locking compound to prevent loosening.

3️⃣ Alignment

• For direct-coupled loads (e.g., pumps, compressors):
  • Align the shafts precisely in both angular and parallel planes.
  • Use a dial indicator or laser alignment tool — don’t rely on eyesight alone.
• Misalignment = vibration, heat, bearing/bushing damage.

4️⃣ Coupling

• Fit the coupling according to manufacturer instructions.
• Leave correct end float and clearance.
• For belt drives: Align pulleys, set correct belt tension — too tight damages bearings; too loose causes slip.

5️⃣ Electrical connections

• Use correct cable size for the motor’s current and distance.
• Connect per wiring diagram — especially for dual-voltage motors (e.g., star/delta or series/parallel connections).
• Use appropriate terminals, lugs, and cable glands to maintain enclosure integrity (IP rating).
• Bond the motor frame to earth ground properly.

6️⃣ VSD/Soft Starter (if used)

• Check compatibility with motor type.
• Use shielded cables if required.
• Install EMC filters or line reactors if specified.

7️⃣ Cooling & ventilation

• Make sure air inlets and outlets are clear — no obstructions.
• For TEFC (totally enclosed fan-cooled) motors, ensure the fan cover is intact.
• For forced ventilation or external fans, wire them correctly.

8️⃣ Testing before startup

• Insulation resistance test (megger) — check winding insulation to ground.
• Rotation check — bump the motor briefly to verify direction.
• Check all bolts, couplings, guards are secure.
• Confirm overload protection settings match motor FLC (Full Load Current).

9️⃣ Startup

• Monitor current draw during first run.
• Listen for abnormal noise, vibration, or overheating.
• Verify operating temperature stays within limits.

🔧 Key best practices

✅ Align properly — most common source of failures is misalignment.
✅ Use proper earthing and bonding.
✅ Follow local electrical codes (NEC, IEC, or equivalent).
✅ Keep a record: installation checklist, test readings, photos.

⚡ Common mistakes to avoid

❌ Mounting on a weak, non-level base.
❌ Skipping shaft alignment.
❌ Poor cable terminations or wrong wire size.
❌ Blocking cooling air.
❌ Forgetting VSD bearing protection if using a VSD.