20+Years Specialized Manufacturer Of Tower Cranes And Construction Hoists

Construction Hoist Maintenance Guide — Monthly Checklist & Safety Tips

6/10/20264 min read

Construction Hoist Maintenance Guide — Monthly Checklist & Safety Tips

A construction hoist carries workers and materials up and down a building every day. A breakdown means stopped work. A safety failure means injuries or worse.

Regular maintenance is not optional — it's the difference between a hoist that runs 5+ years and one that fails in 18 months. This guide gives you a practical monthly checklist and safety guidelines based on EN 12159 standards and real-world field experience.

Why Regular Maintenance Matters

Rule of thumb: Every 8-12 in emergency repairs and downtime.

Daily Pre-Operation Checks (5 Minutes)

Before every shift, the operator should verify:

· ☐ Emergency stop button — Press and confirm it stops the hoist immediately

· ☐ Door interlocks — Hoist should not move with any door open

· ☐ Overload device — Test with known weight, confirm alarm activates

· ☐ Landing gates — All gates close and lock properly

· ☐ Visual inspection — No visible damage to mast sections, wire ropes, or electrical cables

· ☐ Noise check — Run empty for one cycle, listen for unusual sounds

· ☐ Communication — Two-way radio or intercom working between cages and ground

If any check fails — do not operate the hoist until repaired.

Monthly Maintenance Checklist

1. Mast Structure & Anchorage

· ☐ Inspect all mast section bolts — tighten any that have loosened (use torque wrench)

· ☐ Check wall ties / anchors — no cracks in building attachment points

· ☐ Verify mast verticality — deviation should not exceed 1/1000 of installation height

· ☐ Inspect mast section connections — no visible gaps or deformation

· ☐ Check rack and pinion gear engagement — teeth should mesh smoothly with <0.5mm backlash

2. Drive System

· ☐ Check gearbox oil level — top up if below minimum line

· ☐ Listen for gearbox noise during operation — grinding or whining indicates bearing wear

· ☐ Inspect motor mounting bolts — tighten if loose

· ☐ Check brake pad thickness — replace if worn below 3mm

· ☐ Test brake response — hoist should stop within 0.5 seconds of emergency stop

3. Wire Ropes & Sheaves (if applicable)

· ☐ Inspect entire rope length for broken strands — replace if >3 broken wires in one lay

· ☐ Check rope diameter — replace if reduced by 7% from original

· ☐ Lubricate wire ropes with approved lubricant

· ☐ Inspect sheave grooves — no excessive wear or deep scoring

· ☐ Verify rope anchoring at both ends — no slippage

4. Electrical System

· ☐ Check all cable connections — no loose terminals, no corrosion

· ☐ Inspect traveling cable (cable following the cage) — no cuts, kinks, or excessive wear

· ☐ Test limit switches — upper, lower, and door limit switches all functional

· ☐ Verify overload protection — test with calibrated weight

· ☐ Check contactors and relays — no pitting or welding of contacts

· ☐ Inspect control panel — clean dust, check for water ingress

5. Safety Devices

· ☐ Speed limiter / governor — Test per manufacturer instructions, must trigger at rated speed +15%

· ☐ Safety gear (catch device) — Drop test annually or per local regulations

· ☐ Buffer springs — At bottom landing, no deformation or rust

· ☐ Fall arrest device — Must engage within 200mm of overspeed detection

· ☐ Overload sensor — Calibrate if readings seem inaccurate

6. Cage & Landing Gates

· ☐ Inspect cage floor — no corrosion, no loose panels

· ☐ Check cage doors — open/close smoothly, interlock functioning

· ☐ Inspect landing gates at all levels — self-closing, positive locking

· ☐ Check cage guide rollers — replace if worn or producing vibration

· ☐ Clean cage interior — remove debris that could create tripping hazards

Common Problems & Quick Fixes

If the problem is not in this list, stop the hoist and contact the manufacturer. Do not attempt field repairs on safety-critical components (brakes, governors, safety gears).

Safety Guidelines for Operators

1. Never exceed rated capacity — The load rating exists for a reason. Overloading is the #1 cause of hoist accidents

2. One person, one role — The operator should not also be loading materials

3. No riding with loads — Workers and materials should not share the same cage trip (unless the hoist is rated for combined load)

4. Weather limits — Stop operation in winds exceeding the manufacturer's rated speed (typically 20-25 m/s for standard hoists)

5. Visibility — Do not operate if the operator cannot see the landing level

6. Load securing — All materials must be secured inside the cage before movement

7. No modifications — Never bypass safety devices, even temporarily

Annual Professional Inspection

In addition to monthly self-inspections, schedule an annual inspection by a qualified technician. This should include:

• Full brake system test and measurement

• Speed limiter / governor drop test

• Electrical insulation resistance test

• Structural integrity assessment (mast, ties, anchors)

• Complete drive system inspection

• Documentation and certification renewal

In many countries, this annual inspection is legally required. Check your local regulations — operating without a valid inspection certificate can result in fines and project shutdowns.

GKZG Maintenance Support

Every GKZG construction hoist ships with:

• Complete maintenance manual (English)

• Recommended spare parts list for first 2 years

• Remote technical support via video call

• Spare parts shipped within 7 days of order

Recommended spare parts to keep on site:

• Brake pads (2 sets)

• Limit switches (2 of each type)

• Guide rollers (4 pieces)

• Electrical fuses and contactors

• Gearbox oil (1 replacement cycle)

Need Maintenance Support or Spare Parts?

Whether you're maintaining a GKZG hoist or need technical advice on any construction hoist, we're here to help.

Email：ann.lin@gkzgtowercrane.com

WhatsApp: +86 19377161135

Web：gkzgtowercrane.com

GKZG — CE certified construction hoist manufacturer. SC200/200ZN smart hoist with auto floor calling and 20-30% energy savings.