Tender Summary

Objectives

To ensure the standby generator at the designated facility remains fully operational during power outages through comprehensive preventative servicing, maintenance, and compliance with statutory safety standards.

Scope of Work

The contractor shall execute a major service on a Cummins 128kVA standby generator. Key deliverables include:

• Oil sampling and analysis via an ISO-registered laboratory, followed by complete oil drainage and refill (approximately 15 litres).
• Replacement of fuel, oil, and air filters, plus drainage and cleaning of the bund cavity with mandatory disposal certification.
• Radiator coolant drain and refill, inspection/replacement of drive and fan belts, and supply/installation of a new 12V SMF100 battery.
• Electrical system inspections covering earthing, changeover switches, alternator windings, lubrication of contactors/relays, and verification of all protective sensors and alarm circuits.
• Fuel tank system checks (level controls, electric/manual pumps, low-level and cut-out alarms) and control panel cleaning, terminal greasing, and MCB/contact verification.
• Main alternator inspection including frame cleaning, bearing lubrication, brush/slip ring assessment, diode connection checks, and bolt tightening.
• Removal and signed handover of all decommissioned spares, provision of a detailed after-service inspection report, and itemised quotation for any additional repairs.

All work must be site-cleaned daily, comply with occupational health and safety legislation, and receive formal approval from the Chief Artisan/Works Inspector. A three-month guarantee covers defects in material and workmanship.

Technical Requirements

Bidders must hold a valid CIDB registration of 1ME or higher. All materials must be SABS-approved and pre-cleared by the facility maintenance supervisor prior to installation. The contract strictly adheres to the Occupational Health and Safety Act (No. 85 of 1993) and standard departmental trade preambles. Evaluation follows an 80/20 preferential procurement framework, with 80 points allocated to price and 20 points to specific transformation goals. Delays in performance incur daily penalties calculated at the current prime interest rate. Work officially commences only upon issuance of a Site Handover Certificate, which triggers the one-week material lead time and warranty period.

Skills Requirements

The successful bidder must hold a certified trade test qualification as a Diesel Mechanic. Proven experience in servicing similar industrial generators is mandatory, supported by documented award letters and completion certificates. Personnel must demonstrate proficiency in mechanical diagnostics, electrical control panel troubleshooting, ISO-compliant oil analysis coordination, and strict adherence to environmental disposal and safety protocols.

Explanation of Key Terms

• CIDB 1ME: A Construction Industry Development Board contractor grading for Mechanical Engineering works, denoting the minimum competency threshold for mechanical plant maintenance contracts.
• 80/20 Preference System: A public procurement evaluation model where 80% of scoring is based on competitive pricing and 20% on designated economic transformation criteria (specifically, 100% Black African ownership).
• Prime Interest Rate Penalty: A contractual clause imposing daily financial deductions for delayed service delivery, calculated using the prevailing prime lending rate until full performance is achieved.
• Site Handover Certificate: A formal administrative document issued by the employer that officially authorises work commencement, triggering both the material procurement lead time and the warranty period.