It contains a trigger that activates a small water pump. The pump is linked to a plastic tube that draws the cleaned liquid from the reservoir’s bottom. ស្នប់បង្ខំអង្គធាតុរាវចូលទៅក្នុងបន្ទប់តូចចង្អៀតមួយ មុនពេលច្រានវាចេញតាមរន្ធតូចមួយនៅក្នុងក្បាលម៉ាស៊ីនបាញ់. រន្ធនេះ។, ឬ nozzle, ប្រមូលអង្គធាតុរាវដើម្បីបង្កើតចរន្តប្រមូលផ្តុំ. ម៉ាស៊ីនបូមធារាសាស្ត្រគឺជាសមាសធាតុស្មុគស្មាញតែមួយគត់នៅក្នុងការរចនានេះ។, ប៉ុន្តែវាក៏សាមញ្ញណាស់ក្នុងការសាងសង់ផងដែរ។.
Its main moving component is a piston contained within a cylindrical hydraulic chamber. There is a small spring in the hydraulic chamber. To start the hydraulic pump, it must be pulled back, allowing the piston to advance into the hydraulic chamber. When the wrench is released, the piston is pushed out of the hydraulic chamber because the piston moves compress the spring. A complete pump cycle is formed by two piston strokes into and out of the hydraulic chamber.