HS4N

Overview

The Hobart HS4N (model ML-136338) is a commercial slicer built by Hobart of Troy, Ohio. It pairs a 1/2 hp knife drive motor running at 1725 RPM with 120V/1PH/60HZ power and a 13 in. slicer knife, and it carries all stainless steel construction across the machine. Listings show the unit comes with a portable cart, and the machine appears on the used equipment market from multiple sellers. Hobart's catalog of replacement parts for the model — Form 43311, dated August 2015 — documents every assembly from the knife drive motor through the base and kick stand, so each component down to individual fasteners is identified by part number.

Key Features

• 1/2 hp motor at 1725 RPM — the knife drive motor (OEM 00-915665, 60 Hz) turns the knife through a Poly "V" belt (00-438845) with a tensioner adjustment bracket (00-477532).
• 120V/1PH/60HZ power — connects through the factory 120 V cord and plug assembly (00-117542-00121).
• All stainless steel construction — the documented build material for the machine.
• Portable cart — the slicer comes with the portable cart, and the parts catalog lists a service transport carriage assembly (00-915592-00001).
• 13 in. slicer knife — OEM knife part 00-915670.
• Built-in sharpener — a dedicated sharpener assembly with a sharpening stone (00-915735) and a truing stone (00-915736).
• Heavy meat grip hardware — the product tray and meat grip assembly includes a heavy meat grip spacer (00-915591) and block (00-915590).
• Non-removable knife shaft — knife shaft assembly 00-915283-00003 with ball bearing BB-021-66, boot (00-915341), and boot ring (00-915342).
• Kick stand and carriage — a kick stand assembly (00-915340) and transport roller bar (00-915252) support carriage travel.

Specifications

• Model: HS4N (ML-136338)
• Manufacturer: Hobart — 701 S. Ridge Avenue, Troy, Ohio 45374-0001
• Equipment category: Slicer
• Motor: 1/2 hp, 1725 RPM (OEM motor 00-915665, 60 Hz, with gasket 00-439032 and motor plate 00-477760)
• Electrical: 120V/1PH/60HZ
• Cord & plug: 00-117542-00121 (120 V), with strain relief bracket 00-915359 and cable clamp 00-078752-00003
• Switch: On/Off switch 00-087711-00360 with switch boot 00-915731
• Knife: 13 in. slicer knife, OEM 00-915670
• Knife shaft: non-removable assembly 00-915283-00003, including ball bearing BB-021-66 and Rulon plug 00-915308
• Drive: Poly "V" belt 00-438845; tensioner adjustment bracket 00-477532
• Sharpener: sharpening stone 00-915735; truing stone 00-915736; sharpener shaft 00-479339; truing shaft 00-479340; arm 00-479338 on post assembly 00-479356; loading spring SL-005-09; grinding spring 00-479400; cover 00-915696 with knob 00-479347
• Meat grip: heavy meat grip spacer 00-915591; heavy meat grip block 00-915590
• Carriage: service transport carriage 00-915592-00001; transport roller bar 00-915252
• Base: kick stand assembly 00-915340 (shoulder bolt 01-402175-00525, extension spring 01-403275-00234); four tall feet 00-875371; four base feet 00-914835; leg extensions 4-1/2 in., set of 4 (00-915523); bottom cover 00-915344-00002
• Construction: all stainless steel; portable cart included
• Parts documentation: Hobart Form 43311 (August 2015)

Installation & Requirements

Electrical connection. The HS4N is configured for 120V/1PH/60HZ service. The controls section of the parts manual shows the factory cord and plug assembly (00-117542-00121) secured by the strain relief bracket (00-915359) and cable clamp (00-078752-00003), feeding the On/Off switch (00-087711-00360) under its protective boot (00-915731).

Base setup. The machine sits on four tall feet (00-875371) or four base feet (00-914835), with a set of four 4-1/2 in. leg extensions (00-915523) catalogued for the base. The kick stand assembly (00-915340) mounts on a shoulder bolt (01-402175-00525) with an extension spring (01-403275-00234). The bottom cover (00-915344-00002) closes off the underside, and a warning label (00-916957-00045) is part of the documented hardware.

Operation

Controls

Running and stopping the knife is a single On/Off switch (00-087711-00360) protected by a switch boot (00-915731), per the controls and electrical components section of the catalog.

Slicing

Product is loaded on the product tray and held by the meat grip assembly; the heavy meat grip spacer (00-915591) and block (00-915590) are the documented hardware for heavier product. Sliced product moves back on the transport carriage, which rides the transport roller bar (00-915252) at the base. The gauge plate and index section of the catalog covers the slice thickness hardware.

Knife sharpening

The sharpener assembly mounts on its post (00-479356) with an arm (00-479338), and its springs — a loading spring (SL-005-09) and a grinding spring (00-479400) — pressure the stones for sharpening. The sharpening stone (00-915735) runs on the sharpener shaft (00-479339), and the truing stone (00-915736) runs on the truing shaft (00-479340). The unit is enclosed by the sharpener cover (00-915696) and operated by its knob (00-479347), with set screws (SC-127-76, SC-126-44) and retaining ring (RR-012-12) among its fasteners.

Maintenance & Service Parts

Parts catalog Form 43311 identifies the wear items an HS4N owner should expect to service over the machine's life: the motor gasket (00-439032), the Poly "V" belt (00-438845), the knife shaft boot (00-915341) with its ring (00-915342), the ball bearing (BB-021-66) in the knife shaft assembly, the Rulon plug (00-915308), the retaining rings (RR-009-07 and RR-012-12), the hub and bearing retainer (00-875180-00002), and both sharpener stones. The fan (00-937927) and lower hub hardware are likewise catalogued.

The HS4N parts list is documented in Hobart Form 43311.

The factory catalog indexes every assembly by illustration and part number.

Applications

The HS4N is documented across a broad set of food sectors: beef and pork, poultry, sausage, and seafood on the protein side, plus bakery, cheese & dairy processing, pet food production, and vegetable processing. Sellers note the machine helps food processors hold consistent slice thickness on high-throughput lines, and that it can be integrated into prep rooms or packaging operations within USDA-regulated facilities and contract packing plants.