TRAXXAS技术贴视频第二十三期--- 重组避震

TRAXXAS技术贴视频第二十三期--- 重组避震

视频原创发布者 BY TRAXXAS
翻译者               BY TRAXXAS中国总代理电波模型
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以英文原档为准，请参考：

Rebuilding Ultra Shocks | Traxxas Support

Traxxas Ultra Shocks are designed for years of rugged dependable service but certain parts can wear out over time.
Check the shocks periodically for signs of wear.
Leaking oil, caked on dirt or a bent shaft for sign that the shock needs to be rebuilt.
If the shock does not compress and rebound smoothly or rebounds quickly without any resistance, this is also indicator that the shock need some attention.
Shocks come in different sizes and colors, so find your model on Traxxas.com and look under accessories to find the appropriate parts for repairing or Ultra Shocks.
Check the links in the description to find parts for specific Traxxas models.
Slash -https://traxxas.com/products/mod ... slash?t=accessories
Rustler - https://traxxas.com/products/mod ... stler?t=accessories
Bandit - https://traxxas.com/products/mod ... andit?t=accessories
Stampede - https://traxxas.com/products/mod ... mpede?t=accessories
Slash -https://traxxas.com/products/mod ... slash?t=accessories
Rustler - https://traxxas.com/products/mod ... stler?t=accessories
Bandit - https://traxxas.com/products/mod ... andit?t=accessories
Stampede - https://traxxas.com/products/mod ... mpede?t=accessories
Pre-built ultra shocks are available for some models.
Ideally all shocks should be rebuilt at the same time to ensure even handling and optimal performance.
For this demonstration, we will rebuild the shocks on this slash with new seals, pistons and shock oil.
Tools needed will include side cutters or needle nose pliers, small flat head screwdriver, the 4-way wrench from your accessory kit and a Philips head screwdriver or appropriate hex tool to remove the shocks from the vehicle.
An empty water bottle or cup and microfiber cloth or paper towels will also useful for cleanup and disposing old shock oil.
Shock oil is available in various weight to affect the rebound and compression.
We will use the standard 30 weight oil.
First, remove the shock from the vehicle, remove the wheel if necessary for easier access.
Some models have a small washer behind the top of the shocks, be careful not to lose this washer and put it back in place when replacing the shocks.
Remove the lower spring retainer, then remove the spring and upper retainer.
Clean any excess dirt and oil.
Remove the shot cap by unscrewing it using a tool if necessary.
Drain the old shock oil into an empty water bottle or cup and discard.
Remove the old diaphragm.
Use the side cutters to firmly hold the shock shaft getting them as close to the rod as possible.
Remove the rod end from the shaft by turning it counterclockwise.
Now, you can push the shock shaft up and out of the body.
Set aside the shaft and remove the lower cap from the shock body.
Underneath the lower cap, you’ll find 2 seals with a plastic spacer in between them.
Use a small flat head screwdriver to remove these parts and replace them with the new o-rings and spacer.
Lubricate the new seals at the drop of silicone shock oil.
Now, replace the lower cap.
Remove the clip from the shaft if replacing the piston.
To do this, remove the old piston and replace with a new one ensuring the rounded end is pointed down.
Now, we will begin to reassemble the shock.
Lubricate the shaft with a drop of shock oil and gently put it through the shock body.
Hold the shock shaft firmly with the side cutters and screw on the rod end.
With the shaft all the way down, slowly fill the shock body with oil and letting it run down the inside of the body until it is just below at the top of the body.
Slowly push the shaft up about halfway and back down to remove any air bubbles.
You may repeat this process a few times until all the bubbles are gone.
Make sure that piston stays submerged in oil or new bubbles may form.
Let the shock sit upright for a few minutes until all the air escapes.
Top of the shock oil and put on a new diaphragm, the shock doesn’t need to be filled to the top.
Leave about 1 MM for the diaphragm, and excess oil should drain out when the diaphragm is put in place.
Reinstall the shock cap and tighten it to avoid any leaking.
Move the shaft in and out vigorously and listen for any air bubbles in the oil, a properly filled shock should be almost silent when compressed.
If you hear any bubbles, remove the cap again and let the shock sit until all the air has escaped.
When properly filled, the shock shaft should rebound about 1/3 to 1/2 of the way on its own.
If the shock does not compress, it may be overfilled.
If this happened, remove the cap and let out small amount of oil as needed.
Replace the spring and retainers and mount the shock back onto the vehicle.
Now your shock as good as new.

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