Maintenance

4. Maintenance

The maintenance procedures detailed in this section are to be performed by qualified personnel.

4.1.Timer assembly

The standard timer assembly consists of a ½ RPM (2 minutes per revolution) motor turning a common shaft, which, in turn, rotates eight cams. As the cams rotate, they control various functions and the sequence of the operational cycle.

The individual function of each of the 8 cams is identified by a label on the timer assembly. Cams 1 through 8 are positioned from left to right beginning with the “START” cam (cam 1).

START

DET.

DRAIN

FLUSH

SANI.

RINSE

MOTOR PAUSE

*

HEATER

Timer Assembly Label

*The “HEATER” label is not present if the optional sustainer heater is not installed on the machine.

Except for cams 1, and 3, all other cams can be user adjusted. The cam positions are all set at the factory and only the cams controlling the chemical pumps (cams 2, 5 & 6) should ever need adjusting. Each micro switch on the timer assembly is turned on and off by the cam its actuator rides on. For all of the cams, except cams 1, 7 and 8, its corresponding switch is ON when its actuator is down in the cam groove. (Cams 1, 7 and 8 are reverse acting and are turned ON when the micro switch actuator is up out of the groove.) Opening the groove of any cam other than cams 1, 7 or 8 will increase the amount of time that the micro switch is held ON. The cams are slip-fit and a cam adjustment wrench is provided (a small screw driver or the edge of a table knife can also work to adjust the cams).

4.1.1. Cam Adjustment

The two sides of each cam connect to the shaft with a slip-fit so all cam adjustments are made by rotating one side of the cam on the shaft to either increase or decrease the size of the cam groove.

1.Turn off the circuit breaker providing power to the machine before pulling the control drawer out to access the timer assembly.

Caution: One of the terminals on the main power switch remains “hot” even when the machine’s main power switch is turned off—so turn the power off at the circuit breaker.

2.Remove the two 8–32 x ½” Screws securing the control drawer and slide it out to its fully extended position.

3.Using the timer assembly label, determine which cam is to be adjusted. Double check by counting over from cam 1 to the cam to be adjusted.

4.Determine which edge of the cam groove to be adjusted is the leading edge (contacts the limit switch actuator first when the shaft is rotating) and which edge of the groove is the trailing edge. The leading edge of the cam groove determines when in the cycle the control action begins and should not be changed.

5.Adjust the trailing edge of the cam groove by rotating the appropriate side of the cam in the proper direction to either increase or decrease the cam’s groove; resulting in increasing or decreasing the total time that switch will be held ON.

MODEL L-1X & L-1X16 PARTS MANUAL Rev. 1.14

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CMA Dishmachines L-1X16 manual Maintenance, Timer assembly, Cam Adjustment

L-1X16, L-1X specifications

CMA Dishmachines L-1X and L-1X16 are state-of-the-art commercial dishwashers designed to streamline dishwashing processes in various foodservice environments. Recognized for their innovative technology and robust construction, these machines are ideal for restaurants, hotels, and institutional kitchens.

One of the standout features of the CMA L-1X and L-1X16 is their high efficiency. With a capacity to handle up to 40 racks per hour, these models significantly reduce the time spent on washing dishes and improve overall kitchen productivity. Their rapid cycle times ensure that clean dishes are always available, enhancing service speed and minimizing wait times during busy hours.

The L-1X and L-1X16 are designed with advanced wash arm technology, featuring multiple spray zones that ensure thorough cleaning of all dishware. The powerful pump provides exceptional water pressure, ensuring that even the toughest stains are removed with ease. In addition, the units include a built-in booster heater, which raises water temperatures to optimal levels for effective sanitization, complying with health and safety regulations.

Another key characteristic of these dishmachines is their user-friendly interface. The intuitive control panel allows operators to select wash cycles effortlessly, making it easy for staff to operate the machines without extensive training. The digital readout indicates cycle time and wash temperature, providing transparency and ensuring operational efficiency.

The L-1X and L-1X16 models are constructed from durable stainless steel, guaranteeing longevity and resistance to the wear and tear of daily commercial use. Their compact design maximizes workspace efficiency, making them suitable for kitchens with limited space. Additionally, the machines are designed for easy access to internal components, facilitating maintenance and reducing downtime.

Energy efficiency is a priority for CMA Dishmachines, and both the L-1X and L-1X16 models reflect this commitment. These dishwashers consume less water and energy compared to other models in the market, ultimately reducing operating costs and contributing to a more sustainable kitchen environment.

In summary, the CMA Dishmachines L-1X and L-1X16 are highly efficient commercial dishwashers that combine advanced technology, user-friendly features, and durable construction. They are designed to meet the rigorous demands of the foodservice industry while maintaining a focus on efficiency and sustainability. For establishments looking to enhance their dishwashing capabilities, these models represent a cutting-edge solution.