Attachment B: Scope of Work AM26-76-1 (2)Two Brush Chippers Specifications

General Configuration and Capacity The unit shall be a trailer-mounted, drum-style brush chipper capable of processing wood material up to a minimum of 15 inches (38.1 cm) in diameter.

· Chipping Capacity: 15" x 20" (38.1 cm x 50.8 cm) infeed throat capacity.

· Transport Dimensions: Maximum transport length of 179" (454.7 cm) with the feed table up; maximum height of 104" (264.2 cm); maximum width of 86" (218.4 cm).

· Weight: Approximate weight (depending on engine and options) shall be between 6,900 lbs and 7,800 lbs (3,130 kg - 3,538 kg).

Engine The bidder shall provide the following engine configurations:

· Diesel: Minimum 130 hp (97 kW) Tier 4 Final liquid-cooled engine (e.g., Cummins QSF3.8L) providing at least 360 ft-lb (488.1 Nm) of torque.

· Fuel Capacity: Minimum 45-gallon (170.3 L) steel fuel tank; diesel units must include a minimum 5-gallon (18.9 L) DEF tank.

Cutting and Feed Systems The system must be engineered for smooth material intake and high productivity.

· Drum System: Precision-balanced drum, minimum 22.5" (57.2 cm) diameter and 22" (55.9 cm) width, equipped with two A8 chipper steel double-sided knives.

· Feed Roller Orientation: Twin vertical feed rollers to hold material firmly to the infeed table.

· Cleat Design: Vertical rollers must feature helical cleats to minimize vibration and structural loading.

· Feed Performance: Adjustable feed rate with a maximum speed of at least 122-125 fpm (37.2-38.1 m/min).

· SmartFeed System: Must include an automated system that monitors engine RPM and automatically reverses/restarts feed rollers to prevent engine stalling.

Safety and Control Systems Safety features must meet or exceed current ISO/ANSI standards for brush chippers.

· Bottom Feed Stop Bar: A patented bottom bar strategically located for emergency shut-off by an operator's leg.

· Upper Feed Control Bar: Four-position bar (Forward, Neutral, Reverse, E-Stop) mounted over the feed table.

· Reset Method: Dual "Hold-to-Run" buttons for clearing safety stops.

· Discharge System: 270-degree rotating chute with a minimum height of 104" (264.2 cm).

Chassis and Hydraulics [14]

· Axle: 7,000 lb (3,175 kg) or higher capacity rubber torsion axle with electric brakes.

· Frame: Fabricated Z-section or equivalent, minimum .25" (6.4 mm) thickness.

· Hydraulic System: 12-gallon (45.4 L) tank capacity with a 3-micron return and 100-micron suction filtration system.

· Tires: LT 285/75R16 Load Range E or equivalent flotation-style tires.

Required Options/Attachments

· Hydraulic Winch: Minimum 2,000 lb (907 kg) pull capacity with at least 150' (45.7 m) of winch line.

· Remote Control: Optional radio remote control for controlling chipper functions from a distance.

· Ecoldle System: Engine control that automatically reduces RPM during inactivity to save fuel.

Maintenance Interval Requirements The manufacturer and/or authorized dealer shall provide a comprehensive maintenance schedule. The equipment design must facilitate the following:

· Daily Serviceability: Ground-level access to all daily checkpoints, including engine oil, coolant levels, hydraulic fluid sight gauges, and air filter indicators.

· Grease Points: All critical bearings (drum, feed rollers, and pivot points) must be easily accessible. Centralized grease banks are preferred to ensure no points are overlooked.

· Knife Access: The drum housing must feature a tool-less or single-tool locking pin system to secure the drum during knife rotations or replacements.

· Hydraulic Filter Service: The system shall utilize high-efficiency, spin-on filters with a service interval of no less than 500 hours after the initial break-in period.

· Engine Service: Oil and filter change intervals must meet or exceed 500 hours (using synthetic-blend or specified OEM fluids) to minimize operational downtime.

Operator Training and Certification The successful bidder shall provide a formal training program upon delivery of the unit, which must include:

· On-Site Familiarization: A minimum of four (4) hours of hands-on instruction for up to five (5) operators, covering start-up, shut-down, and emergency bypass procedures.

· Safety Certification: Training must explicitly cover the ANSI 2133 safety standards for arboricultural operations and the specific function of the Bottom Feed Stop Bar.

· Winch Safety: Specific instruction on the mechanical advantages and crush-zone hazards of the hydraulic winch system.

· Documentation: Provision of two (2) sets of printed Operator's Manuals, one (1) Service/Repair Manual, and access to an online/digital parts catalog.

· Competency Verification: The instructor must provide "Certificates of Completion" or signed training logs for all participating staff to satisfy OSHA/internal safety record-keeping.

Warranty and Dealer Support

· Standard Warranty: Minimum 1-year/1,000-hour comprehensive warranty and a 3-year/3,000-hour limited warranty on major components (drum, shaft, and housing).

· Response Time: The bidder must guarantee a service technician response or diagnostic evaluation within 48 hours of a reported machine-down event.

Comprehensive Service, Warranty, and Downtime Protection

The bidder shall provide the following integrated support package to ensure maximum operational uptime and lifecycle cost management:

· Warranty & Lifecycle Support

· Engine & Emissions Coverage: All engine and Tier 4 Final/Stage V emissions warranties must be fully transferable and match or exceed the engine manufacturer's 2-year/2,000-hour standard.

· Major Component Extension: In addition to the standard 1-year/1,000-hour warranty, the bidder shall provide a 3-year/3,000-hour limited warranty on the drum assembly, drum shaft, and housing.

· Initial Service Kit: The unit shall be delivered with a "First 500-Hour Service Kit," including all necessary oil, fuel, and hydraulic filters, and one (1) additional set of precision-ground A8 chipper knives with mounting hardware.

· Service Response & Downtime Mitigation

· Technical Response Time: The bidder must guarantee a service technician response or diagnostic evaluation within 48 hours of a reported "machine-down" event.

0Specialized Training

Fleet Maintenance Briefing: In addition to operator training, the bidder shall provide a 2-hour technical session for fleet mechanics covering anvil-to-knife clearance, belt tensioning, and electronic control diagnostics.

Critical Spare Parts & Field-Serviceable Wear Items The bidder shall include a comprehensive "Field Readiness Kit" with each unit purchased. All components must be OEM-certified and include the following:

· Cutting System Spares:

· Spare Knife Sets: Two (2) complete sets of double-sided A8 tool-steel knives (in addition to the set installed on the unit).

· Knife Mounting Hardware: Three (3) complete sets of high-tensile mounting bolts, washers, and nuts to match each knife set.

· Replacement Anvil: One (1) four-sided, rotatable anvil with a matching set of mounting hardware and a dedicated anvil-clearance gauge.

· Drive & Hydraulic Spares:

· Main Drive Belts: Two (2) complete sets of matched, high-capacity banded chipper drive belts.

· Hydraulic Filter Elements: Two (2) 3-micron return filters and two (2) 1DO-micron suction strainers.

· Engine & Safety Maintenance:

· Engine Service Kits: Two (2) complete sets of engine filters (oil, primary/secondary fuel, and air cleaner elements).

· Safety Pins & Fasteners: A multi-pack assortment of common field-serviceable safety pins, cotter pins, and hitch pins specific to the unit's discharge chute and feed table.

General Purchasing Requirement

· Delivery and Invoicing: the transaction must be invoiced, paid and equipment received by June 30, 2026. Delivery dates beyond June 30, 2026 will not be accepted.