HL661

Overview

The Hobart HL661 is a heavy-duty mixer in the Legacy 60-quart series. The HL661 model is equipped with one mixing speed. Its standard equipment includes a 2.7-horsepower motor, SmartTimer, power bowl lift and #12 attachment hub. The supplied parts catalog identifies the HL661 with model number ML-134285 and lists ML-134218 as a prior model number covered by the catalog.

The mixer’s 60-quart designation describes its series capacity. Hobart also identifies a 40-quart bowl and agitators as available options. The supplied information does not give the mixer’s dimensions, weight, or electrical voltage and amperage.

Key Features

• One mixing speed: The HL661 has one mixing speed. This distinguishes its stated speed configuration from the other models in the Legacy 60-quart series.
• 2.7-horsepower motor: The Legacy 60-quart series is specified with a 2.7-horsepower motor.
• SmartTimer: The series includes a SmartTimer as standard equipment. An earlier manual describes it as a digital SmartTimer. A programmable recipe timer is identified as optional in the later manual.
• Power bowl lift: A power bowl lift is standard equipment.
• #12 attachment hub: The attachment hub is standard equipment. Hobart’s manual notes that a variety of attachments, agitators and accessories are available and described in a separate Use and Applications Handbook.

Specifications

• Manufacturer: Hobart
• Model: HL661
• Series: Legacy 60-quart mixer
• Motor: 2.7 horsepower
• Mixing speeds: One
• Timer: SmartTimer; a programmable recipe timer is optional according to the later manual
• Bowl lift: Power bowl lift
• Attachment hub: #12
• Additional bowl availability: A 40-quart bowl and agitators are also available
• Parts catalog model number: ML-134285
• Prior model number covered by the parts catalog: ML-134218

Installation & Requirements

Before installation, the manual instructs the installer to check that the electrical service agrees with the specifications on the mixer’s data plate. The supplied information does not state a voltage or amperage for the HL661, so use the data plate and the wiring diagram inside the top cover for the unit’s electrical details.

Electrical and grounding connections must comply with the applicable portion of the National Electrical Code and/or other local electrical codes. The manual specifies a hole for 3/4-inch trade-size conduit at the top of the pedestal. It also warns that electrical power must be disconnected and lockout/tagout procedures followed before electrical work.

• Single-phase connection: Connect the field supply lead wires to L1 and L2, and connect the ground wire to the mixer’s ground lug. Cut off the stripped portion of L3 and wrap it securely with electrical tape to insulate the exposed conductor.
• Three-phase connection: Connect the field supply lead wires to L1, L2 and L3, and connect the ground wire to the mixer’s ground lug.

For placement, the manual calls for adequate room for the operator to use the controls and install or remove bowls. The area above and to the right side of the mixer must allow the top and side covers to be removed for routine maintenance and servicing. The manual also states that the mixer must be leveled once positioned.

Operation

The HL661 has one mixing speed and a SmartTimer. The later manual identifies a programmable recipe timer as an optional feature; it should not be assumed to be fitted to every HL661. Hobart’s manual also refers operators to a separate Use and Applications Handbook for information about the available agitators, attachments and accessories.

The wire cage must be returned to its closed position for the mixer to operate. When using a bowl truck, follow the stated bowl-lift caution: before lowering the bowl onto the truck, unlock the bowl and swing it out slightly.

Applications

The HL661 is a commercial mixer for batch mixing work suited to its 60-quart Legacy series capacity. Its #12 attachment hub and the availability of different agitators and attachments provide options for configuring the unit for mixing tasks. The supplied sources do not specify ingredient capacities, recipes, or production rates.