B Model Fan Motor Brush

Service Instruction

Figure 1

Figure 2

OVERVIEW

The EasyFire heater is equipped with a long life DC fan motor (Figure

1). This motor utilizes a special brush m aterial that may require additional break in tim e to properly wear in or seat the brushes. W hen the motor is new the brush has a contoured end that allows for

m inim um contact initially to facilitate the break in. As this wears the full width of the brush begins to contact the arm ature allowing for proper operation.

W e have found that a sm all quantity of motors have not im m ediately

Brush holder with accessseated the brushes causing a motor fault light (Red Flashing LED) on the control panel. The motor fault condition requires the unit to be powered down (unplugged) to clear. This condition may also be the result of a feed jam b. The control system is designed to address both inoperative fan and feed m otor in the sam e manner to protect the user and minim ize further dam age to the unit. The fan motor condition is easily corrected by dressing the brushes and reinstalling them .

Testing for a fan motor brush problem is accom plished by two

m ethods. After recycling the heater by unplugging and reestablishing power. Press the “Fan” switch only. If the fan runs push the Clean button and allow the motor speed to increase to full speed. If the “Red Safety Light” does not light then the fan motor is generally considered in proper operation. If pressing the Off button then pressing a run button such as Low provides a short period then a flashing “Red Safety Light” the feed may be jam bed. This can be cleared by rem oving pellets from hopper and rem oving access cover. If the safety light operates on “fan or clean” then accomplish the following service.

Tools Required: #2 Phillips screw driver, medium flat blade, small flat blade, #200 or fine sand paper strip (Figure 2).

Accessing the

motor for brush

service: The fan m otor is accessed from the rear of the heater by rem oving the phillips screws on the upper and lower rear access panels. Once the panels are free tilt the upper panel to the rear allowing the fan shroud to clear

Figure 3

the convection fan

blade (Figure 3)

Figure 4

Removing the wire harness connections : Using care not to bend the fan blade, carefully use a flat blade screw driver to help pry off the red and black motor wire term inals (Figure 4). Note the brush holders have a corresponding red and black base to confirm wire connections.

5061 Brooks St. Ste B Montclair, CA 91763

800-527-4790 Fax 1-909-399-3357

www.sierraproductsinc.net

P/N Fan Motor Brush Service 08 10/08

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Sierra Products B Model manual Model Fan Motor Brush Service Instruction, Overview, Accessing Motor for brush
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B Model specifications

Sierra Products' B Model exemplifies innovation in the realm of high-performance machinery, merging advanced technologies with robust design to deliver unmatched efficiency and reliability in various industrial applications. This model is particularly renowned for its versatility, catering to a diverse array of sectors including manufacturing, construction, and agriculture.

One of the standout features of the B Model is its powerful engine, designed to provide exceptional torque and horsepower while maintaining fuel efficiency. The engine utilizes state-of-the-art fuel injection technology, ensuring optimal combustion and lower emissions, which aligns with contemporary environmental standards. This not only enhances performance but also reduces the operational costs associated with fuel consumption.

The B Model incorporates an advanced hydraulic system, offering unparalleled lifting capabilities and precision. This system allows operators to perform heavy lifting tasks with ease, making it a valuable asset in construction and heavy-duty applications. Additionally, the hydraulic components are engineered for durability, ensuring minimal maintenance downtime and extended service life.

Another significant characteristic of the B Model is its user-friendly interface. The control panel features intuitive controls and a clear display, allowing operators of all experience levels to quickly familiarize themselves with the machine’s functions. Enhanced safety features, including automatic shut-off mechanisms and emergency alarms, further position the B Model as a reliable choice for demanding environments.

The chassis of the B Model is built from high-strength materials that contribute to its ruggedness and stability. This robust construction is essential for operating in harsh conditions, making the B Model suitable for both indoor and outdoor use. Furthermore, its compact design ensures maneuverability in tight spaces, a crucial factor for many industrial and construction applications.

In terms of technology, the B Model is equipped with telematics capabilities, providing real-time monitoring of machine performance and health. This allows for proactive maintenance scheduling and minimizes unexpected breakdowns, significantly improving productivity.

In summary, Sierra Products' B Model stands out in the market due to its powerful engine, advanced hydraulic systems, user-friendly design, and robust construction. With its innovative technologies aimed at enhancing performance and efficiency, the B Model is a prime choice for industries looking to maximize productivity while ensuring safety and reliability.
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