RE: HITEC SERVO FAILURE....PLEASE READ!!  
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RE: HITEC SERVO FAILURE....PLEASE READ!! - 7/10/2006 12:38:22 AM   
PopPhil



Posts: 36
Joined: 7/15/2005
From: Beverly Hills, FL, USA
Status: offline 		Glad I found this info about the KG in Hitec. Always had great servos and no trouble with Hitec , TILL NOW!, Lost 2 servos and part of plane. servos stripped in flight. Been having trouble with 1/4 Super Cub thought it was conections, It turned out to be the 635's. They are no longer in Cub. went to JR DS537 servos and they work Great. Instructions said I could use standard servos in the Cub.



Fly right (right up that is)

_____________________________

Do's and don'ts ::Don't place head between legs on Dead Stick landings, you'll miss the crash.

(in reply to Edwin)
       Post #: 101

RE: HITEC SERVO FAILURE....PLEASE READ!! - 7/29/2006 2:34:49 AM   
Skyflying1



Posts: 318
Joined: 2/27/2002
From: San Antonio, TX, USA
Status: offline 		With all this news being said, what do you folks know about the Karbonite arms that come shipped with the HS-645 MG servos? Has any one heard any horror stories with these arms snapping under loads? Post away......

(in reply to VKerster)
       Post #: 102

RE: HITEC SERVO FAILURE....PLEASE READ!! - 7/29/2006 2:42:28 AM   
gary9648


 

Posts: 1174
Joined: 10/22/2002
From: Troy, OH, USA
Status: offline 		I have not had any fail. The gears were the problem. I use nothing but metal geared servos where applicable.

(in reply to Skyflying1)
       Post #: 103

RE: HITEC SERVO FAILURE....PLEASE READ!! - 7/29/2006 7:30:14 PM   
Skyflying1



Posts: 318
Joined: 2/27/2002
From: San Antonio, TX, USA
Status: offline 		Good stuff....Thank you Gary. ~ Wade

(in reply to gary9648)
       Post #: 104

RE: HITEC SERVO FAILURE....PLEASE READ!! - 7/29/2006 9:18:36 PM   
PopPhil



Posts: 36
Joined: 7/15/2005
From: Beverly Hills, FL, USA
Status: offline 		Has any one checked out the new servos from JR( DS821) ?. Just got four of them to try, and the price is right at 29.95. Hope to be flying them in about a week.





Flying upside down is fun and works great, but hard on props when landing

_____________________________

Do's and don'ts ::Don't place head between legs on Dead Stick landings, you'll miss the crash.

(in reply to Skyflying1)
       Post #: 105

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 4:41:00 AM   
asphalt252


 

Posts: 97
Joined: 6/1/2005
From: Fort Dodge, IA, USA
Status: offline 		Looks good for my needs. GOODBYE HITEC You once had a good product but now its junk! Now you will never see one red penny of my money again.
JR DS821 Sport Hi-Torque Digital Servo
Key Features

Lower price point, but higher performance value
New, longer-lasting plastic gear material
Same size as standard servo
Ball bearing-supported output shaft


Specs

Type: Digital Hi-Torque
Torque: 72.0 oz/in
Speed: .19 sec/60 degrees
Dimensions (WxLxH): 0.74"x1.50"x1.47"
Weight: 1.5 oz
Bearing: Single Ball Bearing
Motor Type: 3-pole ferrite
Gears: Composite
Application: Standard size-digital servo upgrade for sport pilots

Attachments
Click to see fullsize image.
Click for fullsize


< Message edited by asphalt252 -- 8/17/2006 4:47:31 AM >

(in reply to PopPhil)
       Post #: 106

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 5:09:58 AM   
PopPhil



Posts: 36
Joined: 7/15/2005
From: Beverly Hills, FL, USA
Status: offline 		Bought 4 of the DS821 JR servos. I have had 5 flights on my Sukhoi 31 ( 60 size with OS 90 4S) with them and they are great. Flights lasted 15 min. each. no slop at all! I'm a new fan of JR servos. Gentle on the wallet too at 29.95. I pulled all of my Hitec 635's, gears are not holding up. Anyway thanks for the heads up from all of you.

_____________________________

Do's and don'ts ::Don't place head between legs on Dead Stick landings, you'll miss the crash.

(in reply to asphalt252)
       Post #: 107

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 12:15:55 PM   
Edwin


 

Posts: 3324
Joined: 2/8/2002
From: Leander, TX, USA
Status: offline 		Same here. I dont have a lot of time on my JR DS821's but the price is right and so is the torque. They will be phased in during maintenance on the older planes. The new planes are getting these and also trying the 125oz JR sport line. I'm also trying out the futaba 3010, but they're still in the box.
Edwin

(in reply to PopPhil)
       Post #: 108

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 1:31:37 PM   
TLH101



Posts: 5494
Joined: 12/27/2001
From: Corpus Christi, TX, USA
Status: offline 		I just bought some new Hitec servos to go in my current model and I have absolutly no worries. Never had a Hitec fail and I have been using them since they called RCD.
Hitec servos are great.

_____________________________

Terry
"Old Fart" in training. (not to be an R/Cer, but to be an "Old Fart")

(in reply to Edwin)
       Post #: 109

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 2:20:07 PM   
fockewulf37


 

Posts: 1216
Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		Terry,
If you read this thread its mostly about the Karbonite geared servos...Yes I have had good luck with Hitec. The problem here is they have put a defective product on the market. Falsely advertised from the out set and then after have failures they just change the ratings of the servo through customer service when called. They will still say the 635 is a replacement for the 605. but they now add. "Do not use on plane over 12 lbs" and "Don't use on a plane with a gas engine" I flew 605's on up to 40 lbs planes in the past without any problems. Alot of us were screwed by buying the 635's for new planes and then finding out we could not use them. We were left without any remendy but to post it here. Hitec has no plans to make new/different gears for them. They will not replace what you have. You still see advertisements in MAN and elsewhere about these being direct replacement for the 605's

So please buy the 635's and give them your AAA rating


Ty

(in reply to TLH101)
       Post #: 110

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 2:45:23 PM   
PopPhil



Posts: 36
Joined: 7/15/2005
From: Beverly Hills, FL, USA
Status: offline 		AMAN to what Brown said. I still fly Hitec 425's and they are a great servo. The 635's I would love to send them back and get my money back, But. and I will not sell them to any one, so Hitec has lost another cust. and I have servos to set on shelf and look at. I was one of the lucky ones and found out about the 635's before l lost a plane.

_____________________________

Do's and don'ts ::Don't place head between legs on Dead Stick landings, you'll miss the crash.

(in reply to fockewulf37)
       Post #: 111

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 3:59:20 PM   
Edwin


 

Posts: 3324
Joined: 2/8/2002
From: Leander, TX, USA
Status: offline 		When I bought 8 (635's) for giant scale warbird, they advertised (at least by the lhs owner) that they were a direct replacement for the 605. Then later on they changed the spec to not over 12lbs. That tells me they know something. After seeing what happened to others trying to get refunds, I decided not to try. Will sell them at a swapmeet. Up until this point I never had a grip with hitec. My complaint is with their policy. No problem, I can take my business else where.
Edwin

(in reply to PopPhil)
       Post #: 112

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 4:20:58 PM   
TLH101



Posts: 5494
Joined: 12/27/2001
From: Corpus Christi, TX, USA
Status: offline 		It sure is a good thing people did'nt quit buying Fords when they had "Pinto" problems, or GMs when the fuel tanks on the pickups exploded, or K-cars from Chrysler.

_____________________________

Terry
"Old Fart" in training. (not to be an R/Cer, but to be an "Old Fart")

(in reply to Edwin)
       Post #: 113

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 4:23:40 PM   
Edwin


 

Posts: 3324
Joined: 2/8/2002
From: Leander, TX, USA
Status: offline 		The difference is the mfg fixed those problems or pulled the product from distribution. Hitec says its not problem.
Edwin

(in reply to TLH101)
       Post #: 114

RE: HITEC SERVO FAILURE....PLEASE READ!! - 8/17/2006 5:01:10 PM