RCCrawler Forums - Fan model FS-20W 20kg servo unboxingish

First let me state for the record I am not recommending this servo, or commenting on its performance. I have a simple situation that needs to be addressed. I cooked a Solar servo d772(my own fault), the promodler 470 is out of stock and so is the Solar D772. I needed something for an upcoming event, this was an option and I am trying it out.

From the manufacture.
Torque(4.8v/6.0v/7.4V): 16.0 kg-cm (222 oz/in) / 18.0 kg-cm (250 oz/in) / 20.0 kg-cm (277 oz/in) Speed(4.8v/6.0v/7.4V): 0.18 sec/60° │0.16 sec/60° │ 0.14 sec/60°
Dimensions: 40 x 20.5 x 40 mm ( 1.57 x 0.78 x 1.57 in)
Used For: 1/10 1/8 scale RC Crawler / Buggy / Truck and any application where waterproof standard servos are used
Waterproof construction keeps out the elements for worry free operation
High precision potentiometers and High-resolution digital chip, stable performance, strong anti-interference ability, fast response, high precision, control is more delicate and smooth operation.

Nothing special here, plastic covers on each end with a metal body. Body has a cast texture, maybe cast aluminum or pot metal.

https://uploads.tapatalk-cdn.com/201...4ff30d5191.jpg
https://uploads.tapatalk-cdn.com/201...bedc56af22.jpg

So first things first, rip it open and water proof. Yes it claims it is water proof but lets find out how it looks inside.

Typical 4 Phillips screws holding it together, heads are bigger then other servos I have taken apart. Each screw had a rubber gasket.

https://uploads.tapatalk-cdn.com/201...228e3bbf4e.jpg

On either end of the body is two rubber gaskets. Each one was greased as they should be. There are , however, no indents for the gaskets to seat in. It relies on simple compression from the screws, which at this point I am liking the large heads for a little more torque when tightening.
https://uploads.tapatalk-cdn.com/201...f82664b710.jpg

Again nothing special, a board, pot and motor. No grease no conformal coating, no water proofing. I guess they are relying on the gaskets.
https://uploads.tapatalk-cdn.com/201...3151f6e8c2.jpg

Metal gears, nothing super hardened or super cheap. Maybe just cheap.
https://uploads.tapatalk-cdn.com/201...54f9cb5a93.jpg

Always good to see some screws keeping the motor from twisting.
https://uploads.tapatalk-cdn.com/201...dcae7dd042.jpg

Thats about it. I filled it with dielectric, and slapped it back together. Its going in a trail built wraith, nothing super powerful nor will it be demanding. It is headed to a Recon G6 in 3 weeks, unless promodeler gets the 470 back in stock.

I did run it briefly. It is super silent, really nice gear mesh, not twitchy, centered right up and moved smoothly. I was unable to move the servo or hold it back pushing against a 1 inch horn. When I did hold the tires to bind it up, it simple bent the stock plastic steering(up grading shortly)

Overall it seems like a workable, even considering it is only running on 5v internal HW 1060 BEC. Going to install a external 6.6v tonight.

I really don't need to or want to push this to 7.4v. Its for my kid, I am just hoping it runs for 3 days straight.

Sent from my SM-G928V using Tapatalk