Small rakes are widely used in agriculture for cutting green and dry corn stalks, wheat straw, rice straw, and other types of forage suitable for livestock. These tools are also effective in returning cut grass back into the soil to improve agricultural productivity. Over the past few years, the increasing use of small grass rakes in farming operations has brought numerous benefits. However, improper handling and maintenance by some operators have led to various operational issues.
This article focuses on the 9Z-2.5 type mower, discussing common problems related to its proper use and maintenance. Understanding how to operate and maintain these machines correctly is essential for maximizing efficiency and extending their lifespan.
**1. Proper Use**
(1) Before using the machine, it's crucial to read the "Product Instruction Manual" carefully and check all included accessories. This ensures that you're aware of everything needed for safe and effective operation.
(2) Familiarize yourself with the technical specifications of the rake, such as the required power input, spindle speed, weight, and overall dimensions. Knowing these details helps in selecting the right power source and operating conditions.
(3) Understand the performance metrics, like production efficiency (for example, the 9Z-2.0 model is stated to process up to 2.5 tons per hour under specific conditions—65% moisture content and continuous feeding). Also, be aware of the cutting length and the range of grass it can handle effectively.
(4) Check all the standard attachments, including the motor pulley, V-belt (such as B1650 type for the 9Z-2.0 model), belt guards, and fixed bolts. Ensuring these parts are in good condition is key to smooth operation.
(5) Understand the contents of the three packages provided with the machine. This knowledge will help you identify components and manage them properly during use.
**2. Correct Installation**
(1) Determine the power source before installation—this could be a single-cylinder diesel engine, electric motor, or a small four-wheel tractor. Choose the appropriate power unit based on the instructions provided in the manual.
(2) Ensure that the diameter of the power machine’s pulley matches that of the rake’s pulley. This guarantees that the rake operates at the correct speed. For the 9Z-2.0 model, the recommended speed is 800 revolutions per minute.
(3) If using a diesel engine, secure it firmly on a concrete floor. The engine should be adjustable so that the belt can be tightened properly for optimal performance.
(4) When using a four-wheel tractor as a power source, remove the tractor’s belt cover and the two casters at the rear of the mower. Connect the tractor’s central rod to the pin shaft located in the middle of the mower frame. Hang the suspension brackets on the caster shafts and secure them with bolts. Then adjust the V-belts to ensure they are taut and elastic.
(5) If an electric motor is used, install a universal motor base to align the motor axis with the rake’s axis and ensure the pulleys are properly aligned. The direction of the spindle rotation should match the arrow indicated on the housing. Additionally, make sure there is a control switch near the machine for quick power access.
(6) Install the rake smoothly and always place the protective cover in place. Position the machine so that the grass flows naturally with the wind direction. If the machine is difficult to move, you can turn the grass to achieve the best cutting results.
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