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TB685 EC Straight Shaft String Trimmer

$179.00
TB685 EC Straight Shaft String Trimmer is rated 2.8 out of 5 by 242.
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TB685 EC Straight Shaft String Trimmer
$179.00
TB685 EC Straight Shaft String Trimmer is rated 2.8 out of 5 by 242.
  • y_2020, m_7, d_10, h_15
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.10
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_242
  • loc_en_US, sid_41CDZ68C766, prod, sort_[SortEntry(order=HELPFULNESS, direction=DESCENDING), SortEntry(order=POSITIVE_FEEDBACK, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
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The TB685 EC gas trimmer with Prime & Go™ Starting System and SpringAssist™ technology, and the ability to use JumpStart™, is easy to start and easy to use. This trimmer features the new Quick Change cutting head as well as a bonus Aero-Flex® fixed line cutting head for a choice in cutting options. The Quick Change head allows you to convert from bump head to Aero-Flex®® blades in 30 seconds or less! The Bonus Aero-Flex® cutting head utilizes nylon blades to better cut through heavy vegetation without breaking or snagging on brush and obstacles. The TB685 EC trimmer comes equipped with a .095" cutting line that creates a 18" cutting swath and an adjustable Pro handle for both right and left-handed use. The TrimmerPlus® attachment system provides the ability to tackle multiple tasks with one trimmer.
  • 30cc, 4-cycle engine is cleaner and produces less noise  
  • 4-cycle advantage – no mixing of gas and oil
  • Quick Change head and bonus Aero-Flex® fixed line cutting head for cutting options
  • Quick Change head allows you to convert from bump head to Aero-Flex®® blades in 30 seconds or less!
  • Bonus Aero-Flex® cutting head utilizes nylon blades to better cut through heavy vegetation without breaking or snagging on brush and obstacles
  • Prime & Go™ Starting System - fast, simple two-step starting
  • TrimmerPlus® attachment capable - more versatility, less storage space (TrimmerPlus® attachments sold separately)      
  • JumpStart™ compatible - JumpStart engine starters eliminate pull starts with the push of a button (JumpStart™ engine starter sold separately)
  • Multi-position adjustable handle reduces vibration and operator fatigue        
  • 2-year limited warranty

Specs & Maintenance

Product Reviews

Rated 2 out of 5 by from Troy Bilt Trimmers Don't Last I have owned four Troy-Bilt trimmers, three of the two cycle type and one four cycle (this being the latest). The four cycle (TB685 EC) version barely lasted one year. None of these trimmers have lasted the length of the warranty period. Since the nearest repair facility is over an hours drive away, the cost of getting one repaired by them (two round trips) is more than I would spend to replace the unit. Troy-Bilt does not offer me any other options even after several phone calls. Shame on me for not saying this before my last purchase, but I will not buy another Troy-Bilt product if that is all their warranty means.
Date published: 2017-05-21
Rated 1 out of 5 by from Not Recommended I bought this trimmer on Saturday from Lowe's. It was easy enough to assemble, and took about 20 pulls to start the first time. Can't let it idle for more than 5 seconds or it will die. I was able to trim one side of my house before the product broke. The trimmer head stopped spinning. I took the trimmer attachment off, manually spun the head and confirmed that the drive shaft was spinning, so knew it was something in the top half of the product. Whether it was the drive shaft, clutch, or something else, if it broke that quickly it will break again, and I was still well within my 30 day return deadline with Lowe's so I promptly returned it.
Date published: 2017-08-01
Rated 2 out of 5 by from Inconsistent power I read different reviews on this model that mentioned it needs to warm up to hit max power, but I find the power is very, very inconsistent. Often, even after working for 1/2 hour, it will bog down randomly with the slightest touch into the weeds. I've learned to keep the trigger squeezed and after 10-15 seconds it blasts back to full power on its own. Very annoying. I've taken off the string head a few times and found the casting to be quite cheap. The included locking rod engages against this casting and already chips of it have broken off. This isn't a huge deal as I probably will still to ordinary string, but I found it a bit troubling. Overall ease of use is good. I like that "on" is the default setting. The on/off button is only for cutting the engine. The oil fill window is a bit goofy. It's tinted which I find makes it very difficult to see the oil level. On the plus side, the engine starts easily which is amazing for a string trimmer. The whole thing is a bit off balance so it's awkward to start while strapped to your shoulder, but at least if you prime it properly and hold the trigger, it'll always start at least by the second pull. That's nice. Would I buy this trimmer again? Nope. But know that I'm not a fan of trimmers. My experience is that they are practically more trouble that trimming the weeds by hand, and this trimmer is no exception. I was hoping 4-cycle would make a diff, but it only made it heavier.
Date published: 2016-07-14
Rated 1 out of 5 by from Will Not Run, hard to start Bought this two years ago, and have had nothing but trouble. There is a vent line leading back to the filter that plugs, and has to be cleaned out after every use (have to remove the carb to do this). Thought I was buying a decent 4 cycle so I would not have to mix gas/oil. Turns out that this unit was NOT the one to buy. Will either buy an electric unit or a 2 cycle to replace this....BUT....IT WILL NOT BE A TROY BILT
Date published: 2019-06-01
Rated 1 out of 5 by from No Longer a Troy-Bilt customer I bought this unit in September and less than 6 months later, the flywheel broke. OK, not a problem, I call Troy-Bilt to be told I could order the part, I asked "why it is under warranty"? So they direct me to a local repair shop, just to find out there is a 3 week wait and I have to get repaired and I have to put a deposit before they will repair. Never again will I buy any Troy-Bilt products.
Date published: 2019-03-07
Rated 1 out of 5 by from Do not buy this trimmer I purchased this trimmer from Lowes end of April. It works fine for 20 minutes but after that it dies if not held at full throttle. I was willing to stick with it until this past weekend the starter pull string no longer engages the engine. It is useless. It is mid-grade but the quality is poor. I do not recommend. Avoid this trimmer .
Date published: 2017-07-03
Rated 2 out of 5 by from Not worth the money After several uses (less than 3 months), the weed eater began to get harder to start manually. Have not tried to use the jump start feature. Finally the pull rope would no longer engage making it impossible to crank the weed eater.
Date published: 2016-06-28
Rated 4 out of 5 by from Great Trimmer I have recently purchased a new TB685 EC ~ Troy Bilt 30cc 4-Cycle, No Mix Oil & Gas, Straight Shaft, Gas Trimmer and this is my honest review of this product. I am a lawn care service provider that uses trimmers commonly on a daily basis. Since I have bought this trimmer I have put it though some tough situations and it passed with flying colors. If you use the recommended fuel and take care of it, this trimmer will defiantly surpass your expectations. I purchased this Troy Bilt weed trimmer about 1 month ago. When I first purchased it I was overly excited! This was the first weed trimmer that has passed through my business. I have to say I was thrilled! I couldn’t wait to go out and give it a try. After unboxing my trimmer, I easily endured the simple assembly instructions located in the box. Assembly was a breeze! After having finished the assembly, the next day I put this baby to use. My first customer of the day happened to be a new client. His business had been overgrown and he wanted me to tackle it. I used this weed trimmer to eliminate the tall weeds and grass around several vehicles and loads of chain link fence. I was so pleased with the performance of this trimmer, although, I had some problems with the bump head. I have a long history of using several brands of gas trimmers and I have never used one like this. I highly suggest it to any homeowner or other fellow landscaper.
Date published: 2015-09-06
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