Saw Chain - Cocraft WLCS38A-375 Bedienungsanleitung

Maintenace of guide bar and saw chain

Saw chain

Warning! It is very important that the saw chain is sharp for safe and effective
use of the chain saw.
Chain should be sharpened:
• When saw dust becomes like powder.
• When the chain saw needs to be pressed against the object to be cut.
• When the cut is not straight.
• When vibration increases.
• When use of fuel increases.
Warning! Always use work gloves while handling the saw chain.
Before filing begins:
• Make sure that the chain saw is shut off.
• Make sure that the chain saw is held in a steady grip.
• Make sure that you have the correct equipment: A good file with the correct dimension:
Ø 4mm and preferably some type of filing gauge for filing at the right angle and depth.
Chain type: 91VG
File diameter: Ø 4 mm (5/32")
Place the saw in a cut track or in a screw vice so that both hands can be used for filing.
Place the file in a tooth and push the file forward according to the picture.
File each tooth equally. Keep count of how many cutting teeth which are filed so you know
when the whole chain is filed.
When all the teeth have been filed the clearance heels must be measured and filed to correct
height according to the picture.
Warning! Remember to round off the support heels to reduce the risk for kickback
or chain break.
Support template
Check that all the cutting teeth have the same length and cutting angle illustrated in the picture:
Cutter length
Guide bar
Turn the guide bar once in a while to avoid wearing it out on one side.
The guide track on the guide bar should have straight edges. Check for wear: Press a ruler against the guide bar and up
against the outside of a guide link. If a gap between them is seen then the guide bar is good. If no gap is seen then the guide
track is worn and the guide bar must be changed.
Ruler
Gap
Round off the support heels (keep the
original angle)
Filing angle Angle cutting
teeth side
No gap
16
Support size 0.64 mm.
Cutting teeth
The chain folds