Hobart OM-353 manual Reset circuit breaker CB1 see Section

Page 32

Trouble

Remedy

 

 

Fan not operating. NOTE: fan only

Check and remove anything blocking fan movement.

runs when cooling is necessary.

 

Have Factory Authorized Service Agent check fan motor.

 

 

 

Unit provides only maximum or

Have Factory Authorized Service Agent check control board PC1.

minimum weld output.

 

 

 

Weld output always above or always

Have Factory Authorized Service Agent check control board PC1 and hall device HD1.

below set value.

 

 

 

Erratic or improper weld output.

Use proper size and type of weld cable (see Section 3-7).

 

 

 

Clean and tighten all weld connections.

 

 

 

Check position of Output Selector switch (see Section Figure 4-1).

 

 

 

Have Factory Authorized Service Agent check control board PC1 and hall device HD1.

 

 

No AC Balance control.

Have Factory Authorized Service Agent check AC Balance control and control board PC1.

 

 

No control of weld output.

If using remote control, place Output switch in Remote 14 position, and make sure remote control is

 

connected to Remote 14 receptacle. If remote is not being used, place Output switch in On position.

 

 

 

Have Factory Authorized Service Agent check Amp Adjust control and control board PC1.

 

 

No high frequency, no gas flow, and no

Reset circuit breaker CB1 (see Section 5-2).

115 volts ac output from duplex

 

receptacle.

 

 

 

Lack of high frequency; difficulty in

Select proper size tungsten.

starting GTAW arc.

 

Check High Frequency control setting (see Figure 4-1).

 

 

 

 

Be sure electrode holder cable is not close to any grounded metal.

 

 

 

Check cables and torch for cracked insulation or bad connections. Repair or replace.

 

 

 

Check spark gaps (see Section 5-3).

 

 

Wandering arc – poor control of

Reduce gas flow rate.

direction of arc.

 

Select proper size tungsten.

 

 

 

 

Properly prepare tungsten.

 

 

Tungsten electrode oxidizing and not

Shield weld zone from drafts.

remaining bright after conclusion of

 

 

weld.

Increase postflow time.

 

 

 

Check and tighten all gas fittings.

 

 

 

Properly prepare tungsten.

 

 

 

Check for water in torch, and repair torch if necessary. See torch Owner’s Manual.

 

 

OM-353 Page 28

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Contents Description OM-353122200UProcesses From Hobart to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersSignification des symboles Consignes DE Securite Lire Avant UtilisationUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux Risque D’INCENDIE OU LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques + + + DefinitionsISO/IEC Rating Label For CE ProductsSymbols And Definitions Some symbols are found only on CE productsInstallation SpecificationsDC Mode AC Mode Volt-Ampere CurvesOverheating Duty Cycle And Overheating60% Duty Cycle At 200 Amperes Movement Location And Airflow Dimensions And WeightsSelecting a Location Be careful when placing or moving unit over uneven surfaces TippingWeld Output Terminals And Selecting Cable Sizes ARC Welding can cause Electromagnetic InterferenceTurn Off power before connecting to receptacle Remote 14 ReceptacleVolts AC Duplex Receptacle And Shielding Gas Connections SocketElectrical Service Guide All values calculated at 60% duty cyclePlacing Jumper Links And Connecting Input Power Check label inside your unit- only one label is on unitOperation ControlsOutput Selector Switch MetersApplication Crater Time ControlsSpot Time Controls Balance Control AC Gtaw Setting Output WaveformsAC Balance Control Amperage Adjustment Controls Output Contactor Control SwitchFor AC And DC Smaw Welding Arc ControlsPostflow Time Control High Frequency Controls Preflow Time Control OptionalMaintenance & Troubleshooting Routine MaintenanceDisconnect power before maintaining MonthsTurn Off power before adjusting spark gaps Adjusting Spark GapsTroubleshooting Reset circuit breaker CB1 see Section Circuit Diagram High Frequency HF Welding Processes Using HFSources Of HF Radiation From Incorrect Installation Correct Installation Parts List Main AssemblyDia Part Description Quantity Mkgs Panel, Front w/Components Panel, Front w/Components -1 Item 181 Rectifier, Si Diode -1 ItemPanel, Mtg Components -1 Item Control Panel, Lower Front Control Panel, Lower Front -2 Item OM-353 Page Page Service SupportContact your Distributor for Hobart Welding Products

OM-353 specifications

The Hobart OM-353 is a powerful and efficient mixer designed for commercial kitchen environments. Renowned for its durability and high-performance capabilities, this heavy-duty equipment revolutionizes the mixing process, ensuring consistent results for a variety of recipes. The OM-353 combines innovative technology and user-friendly design, making it an essential tool for chefs and kitchen staff alike.

One of the standout features of the Hobart OM-353 is its robust motor. With a horsepower of 1.5, it delivers impressive torque, allowing it to handle dense mixtures and heavy doughs with ease. This capability is particularly valuable in high-volume settings, where efficiency and time-saving are crucial. The mixer is equipped with three fixed speeds, enabling operators to select the appropriate speed for different mixing tasks, from slow folding to high-speed whipping.

The bowl capacity of the OM-353 is another significant characteristic, accommodating up to 35 quarts. This large capacity is ideal for batch processing, allowing commercial kitchens to mix substantial quantities of ingredients simultaneously. The mixer features a sturdy stainless steel bowl, providing durability and resistance to wear while being easy to clean and maintain.

In terms of technology, the Hobart OM-353 incorporates a unique planetary mixing action that ensures thorough ingredient incorporation. The mixing attachments, which include a wire whip, flat beater, and dough hook, are designed to maximize efficiency and ensure every ingredient is evenly combined. The user controls are straightforward, featuring an easy-to-use lever for raising and lowering the bowl, along with a safety guard that prevents accidental operation.

Safety is a key consideration in the design of the OM-353. The mixer is equipped with an overload protection system that automatically shuts off the motor in case of excessive load, preventing potential damage. Additionally, its robust construction and stability reduce the risk of tipping during operation, ensuring a safe working environment.

The Hobart OM-353 embodies the ideal blend of power, performance, and safety, making it a staple in many professional kitchens. Its ability to adapt to various mixing needs, combined with its heavy-duty construction, ensures that chefs can rely on this mixer for consistent and high-quality results in their culinary creations. Whether used in bakeries, restaurants, or catering services, the Hobart OM-353 stands out as an indispensable tool for achieving excellence in food preparation.
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