
SL7 1TB
Customer Helpline 0845 600 5526 Monday to Friday 09.00 to 17.00
www.JCBdiy.com
WARNING
If any parts are damaged or missing, do not operate the tool until the parts are replaced.
Failure to heed this warning could result in serious personal injury.
WARNING
Do not attempt to modify the product or create accessories not recommended for
use with the product. Any such alteration or modification is misuse and could result in
hazardous condition leading to possible serious personal injury.
WARNING
Before first use, it is essential that you ensure the bar and chain have not become
loose in transit. Never operate a chainsaw with incorrectly adjusted chains. Failure to
follow these steps could result in severe personal injury.
ADJUSTING THE CHAIN TENSION
See Figures 2-3, 37, 42-45.
WARNING
Never touch or adjust the chain while the motor is running. The saw chain is very sharp.
Always wear protective gloves when performing maintenance on the chain.
1. Stop the engine before setting the chain tension.
2. Slightly loosen the clutch cover lock knob by pressing in and rotating counter
clockwise (Figure 37).
3. Turn the chain tension dial clockwise to tension the chain (Figure 44).
Note:
A cold chain is correctly tensioned when there is no slack on the underside
of the guide bar, the chain is snug, and it can be turned by hand without binding.
4. Re-tension the chain whenever the fl ats on the drive links hang out of the bar
groove (Figure 3).
Note:
During normal saw operation, the temperature of the chain increases. The
drive links of a correctly tensioned warm chain will hang approximately 1.2 mm out
of the bar groove. The tip of the combination wrench can be used as a guide to help
determine the correct warm chain tension.
Note:
New chains tend to stretch; check the chain tension frequently and tension
as required. This applies for a NEW tool.
5. Lift the tip of the guide bar up to check for sag (Figure 43).
6. Release the tip of the guide bar and turn the chain tension dial clockwise. Repeat
this process until the sag does not exist.
JCB-CS38_960488008-01_Manual_final_ OEM licence.indd 13
JCB-CS38_960488008-01_Manual_final_ OEM licence.indd 13
12/3/2010 5:58:29 PM
12/3/2010 5:58:29 PM