Safety Instructions
Important Safety Symbols:
- ⚠️ WARNING: Indicates a potentially hazardous situation
- ☠️ DANGER: Indicates an imminently hazardous situation
- 📵 PROHIBITED: Indicates prohibited actions
- ✅ MANDATORY: Indicates actions that must be taken
General Safety Rules
- Read All Instructions: Read and understand all instructions before operating.
- Work Area Safety: Keep work area clean and well lit. Keep bystanders away.
- Electrical Safety: Use only Craftsman V20 battery packs and chargers.
- Personal Safety: Wear eye protection, long pants, and sturdy shoes.
- Tool Use and Care: Use the tool only for its intended purpose.
- Service: Have your tool serviced by a qualified repair person.
- Battery Safety: Do not expose battery to fire or excessive heat.
Warning: Failure to follow these safety instructions can result in serious injury or death. Always wear appropriate personal protective equipment.
Assembly Guide
Tools Needed:
- Phillips screwdriver
- Adjustable wrench
- Trimmer line (0.080" diameter)
- Safety glasses
- Work gloves
Step-by-Step Assembly
- Unpack Components: Remove all parts from packaging and verify contents.
- Handle Assembly: Attach the handle to the shaft using provided screws.
- Battery Installation: Insert Craftsman V20 battery into battery compartment.
- Guard Installation: Attach the debris guard to the trimmer head.
- Line Installation: Load trimmer line into the spool following diagram.
- Spool Assembly: Reassemble the spool and trimmer head components.
- Final Check: Ensure all fasteners are tight and components secure.
Note: Do not operate the weed eater until completely assembled and all safety checks are completed.
Specifications
| Model Number | CMCV20WT |
| Power Source | Craftsman V20 Lithium-Ion Battery |
| Voltage | 20V |
| Cutting Swath | 13 inches |
| Line Diameter | 0.080 inches |
| Weight (without battery) | 7.5 lbs |
| Shaft Type | Straight Shaft |
| Head Type | Bump Feed |
| Noise Level | 85 dB |
| Run Time (with 2Ah battery) | 30-45 minutes |
| Charge Time | 60 minutes |
| Warranty | 3 years limited |
Battery Specifications
- Battery Type: Lithium-Ion
- Voltage: 20V
- Capacity Options: 2.0Ah, 4.0Ah, 6.0Ah
- Charger Type: V20 Fast Charger
- Battery Life: Up to 1000 charge cycles
For warranty service, contact Craftsman Customer Service at 1-888-331-4569 or visit Craftsman.com
Operation Guide
Starting Procedure
Insert charged battery, ensure area is clear, hold trimmer with both hands, press and hold safety lock button, then squeeze trigger.
Cutting Techniques
Maintain trimmer at waist level, use sweeping motions from side to side, keep cutting head parallel to ground, overlap passes slightly.
Line Advancement
Tap trimmer head on ground while running to advance fresh line. Do not press too hard or hold against ground.
Battery Management
Monitor battery indicator lights, stop when battery is low, allow battery to cool before charging, store in cool dry place.
Operating Positions
Standard Trimming
Hold trimmer at waist height, maintain 10-15 degree angle, move steadily across work area
Edging
Rotate head 90 degrees, hold vertically, guide along edge for clean borders
Under Fences
Angle head appropriately, use sweeping motions, maintain safe distance from fence
Around Obstacles
Slow movement around trees and posts, maintain safe distance from objects
Important: Always wear eye protection, hearing protection, long pants, and closed-toe shoes while operating.
Maintenance
Regular Maintenance Schedule
| Maintenance Task | Frequency | Procedure |
|---|---|---|
| Clean air vents | After each use | Use soft brush to remove debris from cooling vents |
| Check trimmer line | Before each use | Ensure adequate line length and replace if worn |
| Inspect guard | Weekly | Check for cracks or damage, replace if necessary |
| Clean battery contacts | Monthly | Use dry cloth to clean battery and tool contacts |
| Check fasteners | Monthly | Ensure all screws and bolts are tight |
| Motor inspection | Annually | Have qualified technician inspect motor brushes |
Cleaning Instructions
- Disconnect battery before cleaning
- Use soft cloth to wipe exterior
- Use brush to remove grass and debris from cutting head
- Do not use water or cleaning solvents
- Store in dry location
Winter Storage
- Fully charge battery
- Remove battery from tool
- Clean entire tool thoroughly
- Store in cool, dry place
- Recharge battery every 3 months
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer won't start | Dead battery, safety lock engaged, trigger not pressed | Charge battery, release safety lock, press trigger fully |
| Weak cutting power | Dull line, worn line, low battery | Replace trimmer line, charge battery fully |
| Line won't advance | Empty spool, tangled line, worn bump knob | Reload spool, untangle line, replace bump knob |
| Excessive vibration | Bent shaft, unbalanced head, loose components | Check for damage, tighten all fasteners |
| Motor overheats | Continuous use, blocked vents, heavy load | Allow to cool, clean vents, reduce load |
| Battery won't charge | Faulty charger, dirty contacts, battery failure | Clean contacts, try different charger, replace battery |
Common Issues and Solutions
- Line breaks frequently: Use correct diameter line, avoid hitting hard objects
- Battery drains quickly: Check battery age, ensure proper charging, avoid extreme temperatures
- Uneven cutting: Maintain consistent speed, keep head level, replace worn line
- Head jams: Clean debris from head, ensure proper line loading
- Handle discomfort: Adjust handle position, wear gloves, take frequent breaks
Manual Downloads
Current V20 Series Manuals
CMCV20WT
V20 String Trimmer
CMCV20B
V20 Blower
CMCV20CH
V20 Chainsaw
CMCV20HT
V20 Hedge Trimmer
Related Accessories
V20 2.0Ah Battery
Standard Battery Pack
V20 4.0Ah Battery
Extended Run Battery
V20 Fast Charger
Rapid Battery Charger
Trimmer Line Kit
0.080" Replacement Line
Note: For models not listed here, please visit the Craftsman Support Website for complete documentation.