Home : Technical : Facts & Figures : Haulrope : Man Hours to Change a Haulrope

Having done this at least 30 times here's my estimates on an average lift (3000', 20 towers, 120 chairs, crappy access, clean site when finished).

All major groups with total man hours:

• Unload rope from truck and transport to lift: 8 mhrs
• Partially detension lift: 20 mhrs
• Remove chairs and clips from rope: 50 mhrs
• Clean and NDT all chairs and clips: 32 mhrs
• Fully detension lift and lower haul rope to ground: 50 mhrs
• Setup, test and spooling system: 50 mhrs
• Splice new rope to old: 50 mhrs
• Pull new rope 50: mhrs
• Measure and tension new rope: 50 mhrs
• Move old rope to bone yard: 8 mhrs
• Splice new haul rope: 70 mhrs
• Release rigging in splice area: 10 mhrs
• Hang rope on towers: 50 mhrs
• Reattach support sheaves at lower hold down towers: 4 mhrs
• Tension haul rope: 20 mhrs
• Worry about lack of carriage travel in either direction: 4 mhrs
• Partially detension lift for clip installation: 10 mhrs
• Restack or repaint all chair numbers: 4 mhrs
• Install clips and chairs: 60 mhrs
• Return all slings to storage: 8 mhrs

600+ man hours
5 men 120 hours
5 men 3 weeks

Expected life of a haul rope:
500' long lift running 1500 hours per year = 5 years
2500' long lift running 1000 hours per year = 25 years