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The NSS Pony 20 SCA is the biggest stroll behind carpet extractor that Nationwide Tremendous Service produces. It has a big 20 gallon tank that permits the unit to wash massive carpeted areas shortly and effectively. General this is without doubt one of the finest carpet extractors produced for the janitorial trade. Though this machine is extraordinarily reliable and sturdy, over time components can breakdown and it might should be repaired. The Pony 20 SCA is an easy machine with simply 5 main parts that may fail. These parts are the gear drive motor, vacuum motor, brush motor, pump and solenoid valve. It’s fairly easy to diagnose these components and shortly restore them. When changing components on the NSS Pony 20 SCA is essential to make use of OEM Nationwide Tremendous Service components to make sure that the machine runs accurately after restore.
The Pony 20 SCA is a self-drive unit with variable pace that may cowl massive areas quickly. The drive system on this unit is powered by a 120 volt gear motor that powers the wheel meeting. The drive motor is linked to the wheel meeting by a series, if the drive system goes dangerous and the machine doesn’t transfer there are 4 parts which might be dangerous. The primary and largest of those parts is the gear motor itself, this may be examined by operating direct energy to the motor to see if it powers up. The second element is the pace management Board which will increase or decreases the quantity of voltage going to the motor relying on the pace at which the machine must run. On the lever meeting there’s a lifeless man’s change which turns the comb motor on and off. Over time change parts can put on down and fail and will should be changed. The final element that may fail is the circuit breaker, which over time can put on out and prematurely overload. The circuit breaker is a 3 amp 120 volt unit that when overloaded will shut the circuit to the comb motor. The opposite purpose that this breaker will shutdown is that if the comb motor is drawing greater than 3 amps, this can be attributable to dangerous bearings on the drive wheel or one thing caught across the wheel impeding it from going forwards or backwards.
The Pony 20 SCA recovers resolution from the carpet by an inner vacuum motor which sucks the water up by way of the vacuum shoe on the rear of the unit into the restoration tank. In the event you expertise lack of suction you will need to examine all seals and gaskets are clear and dealing situation. One of many primary causes for lack of suction is a broken dome gasket situated on the highest of the machine. Any holes and cracks on this dome gasket will trigger vacuum leaks and you’ll expertise lack of suction. Earlier than wanting on the vacuum motor as a offender additionally examine the vacuum shoe and vacuum hose on the rear of the machine for any obstructions which can trigger decreased suction. There are two primary parts throughout the vacuum system. These two parts are the vacuum change and vacuum motor. To search out which element has failed use a multi meter to examine to see if you’re getting 120 volts to the vacuum motor when the change is on. If you’re getting 120 volts to the vacuum motor then the vacuum motor has prematurely gone dangerous. Different methods to inform if the vacuum motor is failing is to pay attention for a loud high-pitched squeal or grinding which might come from the motor bearings. Now and again water can get into the vacuum motor from the restoration tank if the machine isn’t emptied earlier than the water stage reaches the float valve. Different ways in which water can get into the vacuum motor is extreme foam within the restoration tank from carpet cleansing detergents. One solution to deter foam is to make use of a defoaming agent by including it into the restoration tank earlier than use. If you’re not getting 120 volts to the vacuum motor when the change is turned on, chances are high the vacuum change has failed and can should be changed. When changing the vacuum motor within the Pony 20 SCA additionally it is essential to switch the vacuum motor gasket to make sure a good seal for optimum efficiency.
The following element which might fail is the comb motor. The comb motor on the Pony 20 SCA drives a rotating filament brush which is used to agitate the carpet fibers. This will increase particles pickup and is perfect for meals service areas and places the place grime and dirt are floor into the carpet. The primary purpose that the comb motor will fail on this unit is that if particles is caught up across the brush, or the bearings within the brush roll go dangerous. This may trigger an extreme load be positioned on the motor and it’ll put on out prematurely. One other parts to examine if the comb isn’t rotating is the comb belt, this belt might be slipping on the pulley or might be severed. If the comb isn’t rotating the three parts which might be dangerous are the comb change, brush breaker or brush motor. To diagnose these components take a multi meter and examine for voltage coming from the comb change to the breaker when the change is turned on. If you’re getting voltage to the comb breaker then proceed to the following step. Subsequent examine for voltage coming from the comb breaker to the comb motor, if there isn’t any voltage there, then chances are high your brush motor has failed. If you’re not getting voltage from the comb change to the comb breaker then substitute the pump change with an OEM NSS change. If you’re not getting voltage from the comb breaker to the motor and getting voltage from the pump change to the comb breaker then chances are high your brush breaker has failed and must be changed. Within the system there may be additionally an AC rectifier which converts AC to DC energy for the comb motor. If the comb change, brush breaker and brush motor are all getting energy then chances are high the rectifier must be changed.
The following inner system that would go dangerous is the pump system. The pump system sprays cleansing resolution onto the carpet. If there isn’t any resolution popping out of your machine the very first thing to examine is jets on the decrease finish of the unit. There are 5 Jets on the Pony 20 SCA, these Jets are fast join jets which when turned will break free from the jet housing. There is no such thing as a have to unscrew the Jets from the spray bar. In the event you do want to switch the previous jet housings make certain to not over tighten the jets as it would crack the plastic within the spray bar. To wash jets, soak in a delimer resolution after which use compressed air to clear the jet nozzles. If the Jets are clear and you aren’t getting any resolution in your carpet there are three parts which could have failed. These parts embrace the pump change, pump or solenoid. To check which element has failed use a multi meter to examine voltage between the pump change and solenoid pump. If you’re not studying any voltage from the system then chances are high your pump change has failed and can should be changed. If you’re getting voltage from the pump change to the pump then certainly one of two parts might be dangerous. The pump and solenoid are connected collectively however the solenoid will be faraway from the pump. On this unit the pump will run constantly run when the pump change is engaged. The solenoid will open and shut to permit water by way of the pump after which by way of the spray bar and jets onto the carpet. If you’re getting energy to the solenoid and the pump and you aren’t listening to the pump run constantly than the pump will should be changed. If you’re getting energy to the pump and the pump is operating then the solenoid will should be changed.
General the Nationwide Tremendous Service Pony 20 SCA is simple to keep up and restore. There are different mechanical parts which will should be changed however this text covers the most important parts that make the machine run. It is vital to not contact dwell wires when diagnosing the machine. For optimum efficiency and reliability solely use Nationwide Tremendous Service components when servicing this unit. NSS components will be bought from both an area seller or on-line retailer. Our licensed service technicians can help you to find the proper half in your flooring tools.
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