Craftsman WS210 17 in 25.4 cc 2-Cycle Gas String Trimmer MECH-VIBRATION Error Fix: Excessive Vibration — Uncomfortable to Operate

Error code MECH-VIBRATION on the Craftsman WS210 17 in 25.4 cc 2-Cycle Gas String Trimmer means: Excessive Vibration — Uncomfortable to Operate. The string trimmer vibrates excessively during operation, causing hand and arm fatigue and difficulty controlling the cutting head. Causes: (1) Trimmer head unbalanced — line wound unevenly on the spool, or one side of the line is significantly shorter than the other. Rewind the line evenly and ensure both line exits are the same length. (2) Damaged trimmer head — a cracked or broken trimmer head creates imbalance. Replace the head assembly. (3) Clutch worn or damaged — a failed clutch can engage unevenly, causing vibration. (4) Engine mount looseness — the engine mounting hardware may have loosened from vibration. Check and tighten all fasteners. (5) Worn anti-vibration mounts — if the trimmer has rubber isolation mounts between the engine and shaft, deteriorated mounts transmit more vibration to the handles. Replace worn mounts. (6) Bent shaft — dropping the trimmer or impacting a hard object can bend the drive shaft inside the tube. A bent shaft vibrates and may also cause the cutting head to wobble. A bent shaft typically requires replacing the shaft tube assembly.

The most successful fix is "Replace Worn Anti-Vibration Mounts and Inspect Engine Mounts" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated low severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Replace Worn Anti-Vibration Mounts and Inspect Engine Mounts") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Socket wrench set, Pliers.

DIY cost: $10-$20. Professional repair typically costs $130-$190. Many homeowners save money by trying the top-ranked community fix first.

The Craftsman WS210 17 in 25.4 cc 2-Cycle Gas String Trimmer has 5 other known error codes, including: MECH-DIES-THROTTLE (Engine Stalls at Full Throttle or When Cutting), MECH-LINE-FEED (Trimmer Line Will Not Advance or Feeds Continuously), MECH-OVERHEATING (Engine Overheating — Loss of Power and Potential Seizure), MECH-PULL-CORD (Pull Cord Breaks or Will Not Retract), MECH-WONT-START (Trimmer Engine Will Not Start).

Error code MECH-VIBRATION also appears on 8 other Craftsman models: Craftsman CMXGWAS021021 3000 PSI 2.3 GPM Gas Pressure Washer, Craftsman M110 140cc 21" Push Gas Lawn Mower, Craftsman R105 30" 10.5 HP Gear-Drive Rear Engine Riding Mower, Craftsman T110 42" 17.5 HP Briggs & Stratton Single-Cylinder Riding Lawn Tractor, M270 21 in 159 cc 3-in-1 Self-Propelled Gas Push Mower, S180 42cc Chainsaw, and 2 more. The fix may vary by model, so check each model's specific page for tailored repair steps.