Objectives

The primary objective of this tender is to secure a qualified service provider to diagnose and rectify a critical failure in a Volvo Grader (CBV 780L) that prevents the machine from starting. The goal is to restore full operational capability by identifying and resolving faults within the engine control and sensor circuitry, ensuring minimal downtime and reliable performance for municipal operations.

Scope

The scope encompasses the complete repair and restoration of the specified grader, covering both supply and installation of required components alongside skilled labor. Key activities include:

• Comprehensive diagnostic assessment of the engine management and electrical systems.
• Supply and installation of specified sensors, harnesses, electronic units, and circuit boards.
• Removal of defective components and integration of new parts.
• System calibration, testing, and verification of the "not starting" fault resolution.
• Provision of a firm delivery or completion period for all works.

Quotations must be submitted on official business letterhead and remain valid for a minimum of thirty days. The municipality reserves the right to reject quotes deemed excessively priced.

Technical Requirements

Bidders must supply and install the following specific components to resolve the system circuit fault:

• Oil pressure sensor
• Temperature sensor
• Intake air sensor
• Pressure sensor
• Low-pressure sensor
• Fuel rail sensor kit
• Engine harness
• Electronic control unit
• Circuit board
• Wiring harness

All supplied parts must meet or exceed Original Equipment Manufacturer (OEM) specifications. Technicians must ensure proper electrical isolation, secure routing, and correct interfacing with the grader’s engine control module. Final commissioning must confirm stable sensor readings and successful engine ignition across multiple test cycles.

Skills Requirements

Service providers must demonstrate specialized expertise in heavy construction equipment maintenance, with a strong focus on Volvo grading machines. Essential competencies include:

• Advanced automotive and heavy machinery electrical diagnostics using professional scan tools and multimeters.
• Proficiency in Engine Control Unit (ECU) troubleshooting, firmware updates, and configuration.
• Expertise in wiring harness fabrication, crimping, soldering, and continuity testing.
• Experience replacing and calibrating precision engine sensors and fuel system components.
• Certified technicians with documented hands-on experience in electronic circuit board repair and integration.
• Strict adherence to occupational health and safety standards when working on live electrical systems and heavy machinery.

Explanation of Unusual or Complicated Terms

• Central Supplier Database (CSD): A mandatory national procurement registry managed by the National Treasury. Suppliers must be registered here to qualify for any South African public sector contract.
• MBD4 Form (Declaration of Interest): A standardized municipal bidding document requiring bidders to declare whether they have any familial, financial, or employment relationships with municipal officials to prevent conflicts of interest.
• 80/20 Evaluation Criteria: A scoring framework where 80 points are allocated to price competitiveness. The remaining 20 points assess Preferential Procurement Policy Act (PPPA) socio-economic goals, specifically targeting black ownership levels (20 points for 100% black-owned entities, 18 for greater than 51%, and 14 for less than 51%).
• Tax Clearance Pin: A unique digital verification code issued by the South African Revenue Service (SARS) that confirms a supplier’s tax compliance status and must be validated before bid submission.