HYDBK4M Hydraulic Base Kit 4 | Motor Included

HYDBK4M Hydraulic Motor & Pump Mounting System with Marzocchi Motor

• Flagship hydraulic-drive mounting system pairing a Marzocchi hydraulic motor with an Annovi Reverberi triplex plunger pump on a shared rigid plane.
• Compact, belt-free architecture delivers professional alignment and predictable service access.
• Heavy base resists flex while long-travel motor slides maintain a true centerline under load.
• Reduced side loading on bearings and seal packs supports smoother, cooler, and quieter operation.
• Clear sightlines to coupling, oil sight glass, vented dipstick, and fasteners enable single-technician service.
• Perimeter space planned for short suction runs, clean pressure and bypass routing, and unloader placement.

Hydraulic Motor (Marzocchi)

• HYDBK4M Includes a Marzocchi external-gear LSHT hydraulic motor matched to the rated AR pump speed.
• High starting torque and stable running at pressure support calm trigger cycling.
• Typical porting includes SAE-12 ORB (3/4″) pressure and return.
• SAE-8 ORB (1/2″) case drain included when specified by the motor build.
• A/B port orientation must be observed for correct rotation.
• Case drain routed above reservoir oil level to prevent aeration.
• Generous hose sizing and proper bend radii reduce restriction and heat.
• Upstream relief protection and 10–25 micron return filtration with adequate beta rating required.
• Reservoir sized at 2–3× total system flow for heat rejection.
• Oil cooling recommended for hot climates, prolonged bypass, or continuous duty.

HYDBK4M Pump Interface & Warranty

• Compatible with common Annovi Reverberi triplex pump footprints.
• AR pump is application-selected and sold separately unless specified.
• Mid-frame RTX pumps typically use 1″ F-BSPP inlet and 1/2″ F-BSPP outlet.
• Small-frame pumps typically use 1/2″ F-BSPP inlet and 3/8″ F-BSPP outlet.
• Adapters to NPT readily available.
• Suction plumbing should be short, straight, and oversized from a flooded supply.
• Anti-collapse suction hose and coarse inlet strainer recommended.
• Adjustable unloader sized to AR duty class required.
• High-pressure relief valve and glycerin-filled gauge required for commissioning.
• Thermal relief valve required on bypass loop for extended gun-closed operation.
• Annovi Reverberi pumps engineered and manufactured in Modena, Italy.
• Pumps ship with factory oil fill, vented dipstick, and sight glass.
• Covered by a 5-year limited, conditional warranty.
• Warranty requires proper installation, filtration, lubrication, and operation within published limits.
• Seals and valves treated as consumable wear items.

Mounting System & What’s Included

• Heavy base plate with long-travel motor slide and slot-ready patterns.
• Pre-slotted and drill-to-fit landings support Marzocchi motor pilot and AR pump feet.
• Guard standoffs included for consistent coupling-guard installation.
• Shim pack provided for fine height and parallel alignment corrections.
• Mounting hardware included to simplify shop setup and documentation.
• Alignment-stable geometry maintains a true centerline under load.
• Predictable hose routing supports clean, professional OEM builds.

Integration Checklist

• Confirm motor displacement and verify available hydraulic flow and pressure.
• Ensure upstream system can deliver required shaft power for selected AR pump.
• Check relief settings, reservoir volume, filtration level, and cooler capacity.
• Verify hose IDs and bend radii on suction, pressure, bypass, and case-drain lines.
• Keep suction lines short and oversized from a flooded source.
• Never starve, overspeed, or run the pump dry.
• Size unloader and safety relief valves to match AR duty class and nozzle set.
• Use long-travel slides to achieve correct coupling engagement depth.
• Record slide positions for repeatable future service and standardization.

HYDBK4M Applications & Benefits

• Mobile wash skids and service-truck bodies.
• Enclosed van systems and municipal or DOT fleets.
• Rental turn-back stations and contractor rigs.
• Equipment-yard rinse stations and parts-cleaning cells.
• Food and beverage sanitation systems observing local hygienic standards.
• Agriculture, ranch equipment wash, and marine or dock washdown.
• Belt-free direct drive eliminates belt dust, guards, and tensioning.
• Single-technician preventive maintenance enabled by open access.
• Matched motor and alignment-stable base extend bearing and seal life.

HYDBK4M Hydraulic Motor & Pump Mounting System with Marzocchi Motor

• HYDBK4M delivers a compact, professional hydraulic drive package.
• Pairs a Marzocchi LSHT motor with a configurable Annovi Reverberi triplex pump.
• Rigid base and long-travel slides support repeatable OEM builds.
• Improves serviceability, reduces vibration, and lowers lifecycle cost.
• Designed for consistent performance across fleets and model years.