Doosan Solenoid Replaced
Product Description: Doosan Solenoid Valve Replacement (TM1012162) Doosan excavators rely on precise hydraulic control for smooth operation. When a solenoid valve fails, the machine may not shift correctly or respond to controls. The Doosan solenoid replaced by Flying Bull (OE No. TM1012162) is a direct-fit proportional electromagnetic valve for construction machinery. This guide walks you through proper replacement steps. Proportional Control for Precision The TM1012162 solenoid valve is a proportional valve. Unlike simple on/off solenoids, it adjusts hydraulic flow gradually. That allows for smooth movement of attachments and precise control in tight spaces. A worn or failed solenoid causes jerky motion, weak digging power, or unresponsive hydraulics. Flying Bull’s Doosan replacement solenoid is 100% brand new. It comes from Zhejiang, China, with a 1‑year warranty. Delivery takes 5–7 working days. Proper Replacement Procedure for TM1012162 Step 1 – Preliminary Preparation Write down the exact model and specifications of the old solenoid valve. Gather tools: wrenches, clean rags, plugs or caps for hydraulic lines. Make sure the new TM1012162 matches the old unit. Step 2 – Remove System Pressure (Critical for Safety) Start the Doosan excavator engine and set it to idle. Move the control handles to low-speed working mode. Loosen the cylinder head and empty the cylinder. The bucket or attachment should not lift when you move the controls. Turn off the engine completely. Step 3 – Remove the Old Solenoid Valve Open the engine room and locate the solenoid valve that needs replacement. Use a wrench to remove the tubing connector from the old solenoid. Immediately plug the open port with a clean plug or cap to prevent oil spillage and dirt entry. Remove the retaining nut with a wrench and carefully pull the old solenoid valve off the pipe. Step 4 – Install the New TM1012162 Solenoid Place the new solenoid valve in the original position. The solenoid component must sit upright and perpendicular to the pipe. Pay attention to the installation direction – the valve is orientation-sensitive. Secure the new solenoid to the pipe using the retaining nut. Tighten to specification (do not overtighten). Remove the plugs from the tubing connector ports and reconnect the tubing. Check all connections for leaks before starting the engine. After installation, start the engine and test hydraulic functions at low speed. Look for oil leaks around the new solenoid. If the machine operates smoothly, the replacement is successful. Keep the Doosan solenoid TM1012162 in your parts inventory to reduce downtime when a hydraulic valve fails.
Product Introduction
Products Description
OE NO.: TM1012162 |
Media: Oil |
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Warranty: 1 YEAR |
Condition: New, 100% Brand-new |
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Place of Origin: Zhejiang, China |
Item: Solenoid |
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Brand Name: FLYING BULL |
Quality: High-Quality |
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Delivery: 5-7 Working Days |
Pressure: Ordinary Pressure |
Proportional Electromagnetic Valve TM1012162 Construction machinery parts
Doosan Solenoid TM1012162 Replaced
1. Preliminary preparation
① First of all, it is necessary to specify the specific model and specification of the solenoid valve that needs to be replaced to ensure that the new solenoid valve matches the old solenoid valve in the Doosan excavator.
② Prepare tools
2. Eliminate the system pressure
① Adjust the excavator status
Adjust the excavator engine to idle and set the handle to the low-speed working mode.
② Empty the cylinder
Loosen the cylinder head of the excavator and empty the cylinder to ensure that the excavator cannot lift.
③ Turn off the engine
After completing the preceding steps, turn off the excavator engine.
3. Remove the old solenoid valve
① Locate the solenoid valve
Open the engine room of the excavator and locate the location of the solenoid valve that needs to be replaced.
② Remove the tubing connector
Use a wrench to remove the tubing connector of the original solenoid valve, and plug the nozzle with a plug or other items to prevent oil leakage.
③ Remove the solenoid valve
Remove the nut from the solenoid valve using a wrench and carefully remove the old solenoid valve from the pipe.
4. Install the new solenoid valve TM1012162
① Installation position and direction
Place the new solenoid valve TM1012162 in the original position, and ensure that the solenoid component is upright and perpendicular to the pipe. Note the installation direction of the solenoid valve.
② Fixed solenoid valve
Secure the new solenoid valve to the pipe using nuts.
③ Connect the tubing
Remove the previously blocked tubing connector and reconnect the tubing to the new solenoid valve TM1012162.
Company Introduction
Frequently Asked Questions (FAQs)
1. Which Doosan excavator models use the TM1012162 solenoid valve?
The TM1012162 is a proportional electromagnetic valve used in various Doosan excavator hydraulic systems. Because different machine configurations vary, always check your original part number before ordering. Do not rely on machine model alone – confirm the OE number on your old solenoid.
2. What is the difference between a proportional solenoid valve and a standard on/off solenoid?
A standard on/off solenoid works like a light switch – fully open or fully closed. A proportional solenoid valve, like the TM1012162, adjusts hydraulic flow gradually. That allows smooth, precise control of attachments and movements instead of sudden, jerky actions. Proportional valves are essential for delicate work like grading or pipe laying.
3. Why must the solenoid component be upright and perpendicular to the pipe during installation?
The solenoid valve is orientation-sensitive. Installing it at the wrong angle can prevent the internal spool from moving correctly. The valve may stick, leak, or fail to regulate pressure properly. Always follow the orientation guidelines – solenoid upright, perpendicular to the pipe – to ensure reliable operation.
4. Why do I need to release system pressure before removing the old solenoid?
Hydraulic systems store high pressure even when the engine is off. If you remove a solenoid or tubing without releasing pressure first, hot oil can spray out under force. That causes injury risk and oil spills. The procedure – idling the engine, emptying the cylinder, then shutting down – safely removes stored pressure before you start work.
5. Should I plug the tubing ports after removing the old solenoid?
Yes. Immediately after removing the tubing connector, plug the port with a clean plug or cap. This prevents two problems: hydraulic oil leaking onto the machine (mess and environmental concern) and dirt or debris entering the hydraulic system (which damages pumps and valves). Even a small piece of dirt can ruin a new solenoid.
6. Can I replace just one solenoid valve, or should I replace all of them at once?
You can replace a single failed solenoid. However, if the hydraulic system has multiple solenoids of the same age and operating hours, the others may fail soon. Many repair shops recommend replacing all similar solenoids at the same time. The labor to access the valve body is the same, and doing all at once prevents repeat downtime.
7. Does this solenoid come with a warranty?
Yes. Flying Bull provides a 1‑year warranty against manufacturing defects. Damage caused by contaminated oil, incorrect installation (wrong orientation or overtightening), or electrical faults outside the solenoid is not covered. Always use clean hydraulic fluid and follow the installation procedure exactly.
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