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Mechanics Choice: Improves Reliability and Enhances Performance at a value that beats OEM prices.

Yinglang specialized in excavator parts since 2003, offering wide range of aftermarket replacement parts used on different brands of excavators, through decade years of development, our products were successfully exported to more than 100 countries and received good reputation, we highly appreciated the continuous supports of all the customers from different countries, we will try our efforts to continue to provide reliable quality products at competitive price to serve our customers.

Electric parts can be supplied including pressure switch, stepper motor (throttle Motor, motor governor), solenoid valve, sensor, flameout solenoid (stop solenoid, shutoff solenoid, shutdown solenoid), starter switch, computer board, monitor, starting motor, alternator etc.

--Every part is manufactured to OEM specifications for perfect fit and performance

--Serving mechanics and do-it-yourselfers in all 50 U.S. States plus around the globe

--Pledge of total customer satisfaction is backed with a 1-year warranty

--Factory direct, money-saving pricing keeps more money in your pocket

Our company is a Recognized Engine and Turbine Retrofitter, and our goal is to provide quality products, solutions and technical services to the Turbo machinery industry and our customers. In addition to innovative solutions for prime movers, we provide support and enhancement to Diesel and Natural Gas Engines as well as Steam and Gas Turbine Control Systems. We also provide products and systems for all business segments including Compressor Anti-Surge Controls, Condition Monitoring, Power Generation and Distribution.

Our aftermarket solenoids are manufactured to exacting OEM specifications for perfect fit and superior performance. We make sure only premium materials and uncompromising craftsmanship go into every electrical unit. A new YL Electrical solenoid will restore precise, quick starts in a vehicle when it’s time to replace an older one.

How Solenoids Work: 

Solenoids work as electromagnetic switches, serving as the link between the ignition and starter. The solenoid engages when the ignition key is turned, creating a link to allow for the flow of electricity to the starter. Once the engine starts, the solenoid disengages, cutting off the flow of electric. Solenoids have wire coils that wrap around a mobile core. As electricity travels through the coil, the core becomes magnetized, which creates force to push the mobile core outward to engage gears on the starter.

Factory-Direct Pricing:

Because we are the factories, we can save you money by offering these electronic components at value prices.

25 Years of Satisfied Customers:
We’ve been in the business of supplying quality electrical components for over 25 years. Our long history has taught us that you only keep customers satisfied by supplying quality products and outstanding service.

We proudly stands behind the quality of our products with our total-confidence 1-year warranty. Yes, you have a full year to make sure your solenoid relay meets your expectations.

Description:

Name: Shutoff Solenoid, Shutdown Solenoid, Fuel Stop Solenoid, Shutdown Solenoid Valve, Stop Solenoid Valve, Fuel Cutoff Solenoid Valve, Solenoid Switch

Model: 3935430 3935432 SA-4755-24 3935429 3935431 SA-4755-12

Voltage: DC 12/24V

Material: Iron

Replaces These Part Numbers:

Yinglang engineers are experts in engine and turbine controls because we understand your equipment. Yinglang offers simplex, duplex or TMR architecture control systems for a variety of applications as well as electronic engine control systems for any application operating on diesel and/or gaseous fuel. Yinglang service department is available 24/7 to provide parts, technical support, or emergency service. 

Solenoid Troubleshooting Guide

Internally & Externally Switched Solenoids

Push & Pull Type Solenoids

Solenoid Linkage Adjustment 

The solenoid linkage connects the solenoid plunger shaft to the engine control lever. The linkage must have minimal friction, binding and backlash in order to assure accurate, responsive performance of the application. The setting of the linkage is critical to both the solenoid operation and to the performance of the application. The linkage consists of rotating joints, fastening hardware, and, where required, a control lever. 

Linkage Adjustment 

A misaligned linkage may not allow the plunger to bottom out. Failure to “bottom out” will cause an internally switched solenoid to burn out and an externally switch solenoid to “drop out”.

1. Examine the linkage and look for signs of corrosion, rust, oil and dirt, all of which can contribute to unacceptable performance of the solenoid. Make sure linkage moves freely without binding. If the linkage feels tight, check for bent linkage, misaligned bracket, improper spring on control lever, swivel head hitting control lever, etc. Loosen linkage as needed.  The linkage and the plunger must all move freely with your fingers. 

2. Turn the Key Switch to “Run/On” position.  

NOTE: Take precautions during these checks to prevent pull coil burnout.  For internally switched solenoids, manually push the linkage all the way in. The plunger should hold in place. If the plunger does not hold in, measure resistance across the positive and negative terminals. The reading should match the hold coil resistance listed in the Solenoid Coil Resistance Check section. If the reading is not correct, the plunger is not activating the internal switch and linkage adjustment is too short. Adjust linkage until the plunger holds in.  For externally switched solenoids, manually push the linkage as far as it will go. The plunger should hold in place. If the plunger does not hold in, linkage adjustment is too short (for push type solenoids the linkage adjustment is too long). Adjust linkage until the plunger holds in. 

3. Manually move linkage from shutdown to maximum fuel, ensuring solenoid spring will return linkage to shut down position and full travel of linkage is smooth, uninhibited, and does not exceed specified stroke. 

4. When a connecting rod is used, the stroke is adjusted by turning the rod on its threads and locking the rod in place with a lockwasher and nut. The solenoid should be energized during this adjustment. Use this procedure with ES solenoids only if the linkage length is incorrect. 

5. When bead chain or cable is used, the solenoid should be energized and the bead chain or cable length adjusted to give the desired lever position.  Plunger travel must be checked, especially when a bead chain or cable is used in a connecting device. The plunger travel must be limited to the solenoid’s rated stroke when it is de-energized. An “L” bracket can be used to limit the plunger travel.

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