TB685 EC Straight Shaft String Trimmer

30cc, 4-Cycle Gas Trimmer / Attachment-Capable Design

Model No. 41CDZ68C766


Where to Buy

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.  TrimmerPlus® attachments and  JumpStart™ sold separately.

TB685 EC Straight Shaft String Trimmer is rated 3.5 out of 5 by 271.
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  • 30cc*, 4-cycle engine is cleaner and produces less noise
  • Multi-position Pro handle reduces vibration and operator fatigue

*as rated by engine manufacturer

  • 18"
  • .095"
  • 30cc, 4-cycle gas
  • SpringAssist™ w/ JumpStart™ Capability
  • Prime & Go™
  • Quick Change™ bump head
  • Quick loading
  • Yes
  • Multi-position Pro handle
  • Straight
  • 18 lbs
  • 2-year limited
Rated 1 out of 5 by from expected better - will not buy again next year thought maybe I had a lemon, but too many other comments agree. After first use in July, went into shop under warranty for oil leak. Was ok for the season, but pull starter was going out and took several pulls to engage. Last week about 30 minutes into edging, the thing blew oil everywhere and locked up. This thing is trash.
Date published: 2018-12-28
Rated 1 out of 5 by from Terrible product broke in less than 1 season Bought this and the edger attachment, drive shaft broke within 7 uses. After first use would not idle correctly
Date published: 2018-12-27
Rated 1 out of 5 by from Won't stay on I bought this recently and followed all the instructions closely (I even purchased one of the jump starters to make it easier). Everytime I start the trimmer it appears to be working but when I squeeze the trigger it just stalls. I looked online and found this was a common problem. Very disappointed.
Date published: 2018-11-25
Rated 3 out of 5 by from trimmer head "eyelet" replacement part number I like the ease of the trimmer but what I don't like is the fact that you cant find replacement eyelets for the trimmer head. Please let me know can someone tell me the part number for the eyelets I have owned 3 of the troy bilt trimmers and have worn them out over the past several years .
Date published: 2018-10-28
Rated 4 out of 5 by from Good line trimmer Have had this trimmer over a year. I did some online research before purchase. We're some negative reviews about hard starting, not enough power, recoil starter problems and trimmer line feed problems. As for hard starting, if you do not pump primer bulb til you see fuel, it will be hard to start. This may be related to recoil starter issue by people pulling to hard or pulling the starter cord to the end. As for the power, I find it has plenty of power to cut up to 10" high grass/weeds. You need to take your time and don't force the machine. As for the trimmer line feed, I refer NOT to use the "bump feed" feature. I manually push the bump head and feed out the line, 1 or 2 notches at a time. Even though I use this method, the aluminum eye/grommets have popped out. This is a POOR DESIGN. The grommets should be fully encased in the trimmer head.
Date published: 2018-10-19
Rated 5 out of 5 by from Very reliable Had it for 3 years. I did leave gas in to long but it cleaned right up. It is a little heavy but ok.
Date published: 2018-10-07
Rated 1 out of 5 by from Wouldn't buy ever again. Terrible purchase! Will not buy again. Will not recommend to family!
Date published: 2018-10-06
Rated 5 out of 5 by from Quality Weedeater I have had several weedeaters and this one has been the best. Like the no mixing of gas and oil. I purchased the Electric Start with it so it always starts right away and feeds line promptly with a bump. It is easy to handle and gets under bushes and edges nicely.
Date published: 2018-10-05
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Operator's Manuals Disclaimer

Important Information - Please Read Carefully

The Operator's Manual is an important part of your new outdoor power equipment. It will help you assemble, prepare, maintain and safely operate your machine. Your outdoor power equipment was built to be operated according to the rules and instructions for safe operation which are contained in the operator's manual and on the machine itself.

Safety rules and instructions, if not followed, could endanger the personal safety and/or property of the operator and others. Read and follow all instructions in the manual before attempting to operate your outdoor power equipment. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. Your machine is capable of amputating hands and feet and throwing objects. Failure to observe the safety rules and instructions, both on the machine and in the Operator's Manual, could result in serious injury or death.

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