• Identify and mark all structural components according to drawing
• Assemble tower sections/panels at ground level where possible
• Verify bolt hole alignment and structural member orientation
• Apply corrosion protection to connection points if required
• Pre-torque bolted connections to manufacturer's specifications
• Attach lifting points and rigging at designated locations
• Calculate and verify weights of pre-assembled components
• Mark center of gravity and lift points for balanced lifting
• Conduct trial fit of critical connections before final assembly

• Prepare ground with base plates and sole boards on firm, level surface
• Erect vertical standards following a 3:1 height-to-base ratio rule
• Install ledgers horizontally at maximum 2m intervals as per IS 4014
• Place transoms at maximum 1.2m centers as per load calculations
• Add diagonal bracing at 30-45° angles for lateral stability
• Install guardrails at heights of 0.5m and 1.0m as per IS 3696
• Add toe boards with minimum 150mm height to prevent falling objects
• Provide safe access with ladders extending 1m above landing point
• Tie scaffold to main structure at every 4m height and 6m length
• Install proper work platforms with fully boarded decks
• Ensure maximum gap of 25mm between adjacent planks
• Conduct inspection by competent person before use

• Review approved structural and scaffolding drawings
• Conduct site assessment for ground conditions and overhead hazards
• Prepare risk assessment and method statement (RAMS)
• Verify qualification of workers (scaffolders per IS 3696, riggers, etc.)
• Establish exclusion zones and drop zones around work area
• Identify anchor points for fall protection systems
• Conduct toolbox talk to review procedures and safety requirements
• Inspect all materials and equipment prior to use

• Position crane and outriggers on firm, level ground
• Verify lifting capacity against load charts for actual configuration
• Check wind conditions before lifting (maximum 38 km/h for safe lifting)
• Attach tag lines to control load movement (minimum 15m long)
• Establish clear communication protocol between riggers and operator
• Lift and position base sections first, ensuring proper alignment
• Temporarily secure components before final fixing
• Install permanent connections using proper sequence:
• Start from center and work outward for beam connections
• Install all bolts in a connection before final tightening
• Follow zigzag pattern for multi-bolt connections
• Apply specified torque using calibrated tools as per IS 4000
• Mark completed connections with paint or marker
• Install subsequent levels/sections following the same procedure
• For tower structures, install diagonals and cross members as per sequence
• Continuously check vertical alignment with total station or plumb bob

• Perform final structure plumbing with total station (max deviation ±5mm)
• Check column straightness with maximum allowable camber of span/1000
• Perform final tightening of all bolts to specified torque values
• Apply secondary torque marks for visual verification
• Install any remaining bracing or stability components
• Apply touch-up paint to connections and damaged surfaces
• Complete any required welding of permanent connections
• For tower structures, verify antenna mounting provisions
• Install any specified grounding systems
• Remove temporary lifting attachments and other aids
• Conduct final inspection with project engineer

• Ensure structure is stable and secure before removing scaffolding
• Remove all tools and materials from scaffold platforms
• Establish exclusion zone around dismantling area
• Dismantle in reverse order of erection with top components first
• Lower components using rope and pulley systems (never drop)
• Maintain minimum two levels of guardrails during dismantling
• Remove ties only as dismantling progresses
• Stack components properly to prevent damage
• Clean and inspect components before storage

• Verify foundation anchor bolt pattern and elevation before installation
• Check anchor bolt projection length (minimum 6D + 30mm)
• Install leveling nuts and washers on anchor bolts
• Set base plates to correct elevation (±3mm tolerance)
• Apply non-shrink grout with minimum 50MPa strength
• Allow grout to cure (minimum 7 days) before loading

• Follow manufacturer's recommended assembly sequence
• Install base section first with temporary guys if required
• Add subsequent sections maintaining verticality (±1:1000)
• Install diagonal members and cross bracing at each level
• Verify bolt tensions for each type and size:
• M12 (Grade 8.8): 70-80 Nm
• M16 (Grade 8.8): 170-190 Nm
• M20 (Grade 8.8): 330-360 Nm
• M24 (Grade 8.8): 570-630 Nm
• Install platforms and ladder systems as per design
• Add aviation warning lighting if height exceeds 45m
• Install lightning protection and earthing system

• Verify guy anchor positions (±50mm tolerance)
• Install guy wires with proper sag (1/40 to 1/60 of span)
• Use calibrated tension meters for guy wire adjustment
• Apply initial tension (10-15% of breaking strength)
• Adjust guys systematically working around the tower
• Install safety guards at all tension hardware

Problem: Bolt holes not aligning during assembly.

Solution: Use tapered alignment pins to guide components. Check for deformation or damage. Use drift pins cautiously (never hammer bolt threads). For severe misalignment, refer to structural engineer before enlarging holes.

Problem: Scaffold wobbling or showing signs of instability.

Solution: Increase number of ties to structure. Add additional diagonal bracing. Check and improve base conditions. Reduce height-to-base ratio. Consider using buttress/raker bracing for support.

Problem: Tower leaning or out of plumb beyond allowable tolerances.

Solution: For guided towers, adjust guy wire tensions incrementally. For self-supporting towers, check foundation levelness. Use hydraulic jacks at base to make minor corrections before final bolting. For significant issues, consult structural engineer.

Problem: Unable to achieve specified torque values.

Solution: Check bolt grade and size are correct. Clean and lubricate threads if needed (use specified lubricant only). Inspect for thread damage. Verify torque wrench calibration. Replace bolts if necessary rather than exceeding maximum torque.