Objectives

The primary objective of this tender is to engage a qualified supplier to diagnose, repair, and fully restore the operational functionality of the generator located at the Thusong Centre. The municipality seeks a comprehensive solution that ensures reliable power supply through targeted component replacement, routine maintenance, and professional technical labour.

Scope of Work

The contract covers the supply, installation, and servicing of specified generator components, alongside comprehensive diagnostic and repair labour. Key deliverables include:

• Replacement and calibration of a Deep Sea controller
• Repair of engine misfiring issues and faulty injection systems
• Supply and installation of contractor coils (230V), fuel supply common rail sensor, water jacket heater, fuel filters, auxiliary block, battery charger, fuel solenoid, phase failure relays, bus fuses, and engine alternator components
• Clearance and servicing of two blocked radiators
• Provision of all skilled labour required for diagnostics, repairs, testing, and commissioning

Bidders are strictly mandated to conduct a physical site assessment at the Thusong Centre prior to quotation submission to accurately determine the full extent of required interventions.

Technical Requirements

Suppliers must demonstrate the technical capacity to manage complex diesel generator systems. This includes proficiency in electronic fault diagnosis, precision fuel injection servicing, cooling system maintenance, and automatic control panel calibration. All replaced components must meet original equipment manufacturer (OEM) specifications or approved municipal equivalents. The successful bidder will be responsible for post-repair system testing to verify stable voltage output, correct phase alignment, load-bearing capacity, and reliable automatic start-up functionality.

Skills Requirements

While not explicitly itemised in the documentation, the scope necessitates certified generator technicians and electricians with proven field experience. Essential competencies include:

• Expertise in interpreting generator schematics, wiring diagrams, and digital fault codes
• Hands-on experience with Deep Sea control architectures and common rail fuel technologies
• Proficiency in three-phase electrical troubleshooting, including 230V coil replacement and phase failure relay calibration
• Valid trade certifications or municipal-approved qualifications in mechanical or electrical engineering
• Strong diagnostic problem-solving skills to address intermittent engine faults, alternator inefficiencies, and sensor malfunctions

Explanation of Unusual or Complicated Terms

• Deep Sea Controller: A widely used microprocessor-based automatic generator control unit that monitors engine parameters, manages start/stop sequences, and provides critical fault protection.
• Common Rail Sensor: A high-precision component that measures fuel pressure within the shared fuel line of modern diesel engines, essential for accurate injection timing and engine performance.
• Phase Failure Relay: An electrical safety device that automatically disconnects power if one or more phases are missing, reversed, or unbalanced, preventing severe damage to three-phase equipment.
• 80/20 Preferential Procurement System: A South African public procurement framework allocating 80 points for competitive pricing and 20 points for socio-economic transformation goals (e.g., local district residency, youth/female ownership, rural development).
• CSD/TCS Verification: Mandatory supplier verification through the National Treasury’s Central Supplier Database and SARS Tax Compliance Status to confirm legal registration, financial standing, and tax adherence.