9. Maintenance
|
(1) |
(PS-EX only)
■OILING PORT
Dismount the guide bar and check the oiling port for clogging. (MA1)
(1) Oiling port
PS-EX MA6
Cutter setting standards:
WARNING
Be sure to wear safety gloves.
Before filing:
• | Make sure the saw chain is held |
| securely. |
• | Make sure the engine is stopped. |
PS-EX MA2
PS-EX MA3
PS-EX MA4
PS-EX MA5
■GUIDE BAR
Remove sawdust in the bar groove and the oiling port. (MA2)
(1)Groove
(2)Oiling port
(Type: Sprocket nose)
Grease the nose sprocket from the feeding port on the tip of the bar. (MA3)
(1)Grease port
(2)Sprocket
The bar rail should always be a square. Check for wear of the bar rail. Apply a ruler to the bar and the outside of a cutter. If a gap is observed between them, the rail is normal. Otherwise, the bar rail is worn. Such a bar needs to be corrected or replaced.(MA4)
(1)Ruler
(2)Gap
(3)No gap
(4)Chain tilts
■SPROCKET
Check for extensive wear, and replace it when the teeth are worn over 0.3mm. (MA5)
(1) Sprocket
■SAW CHAIN
PS-EX MA7
PS-EX MA8
• Use a round file of proper size for your |
chain. |
Chain type : 90SG
File size : 5/32 in (4.0mm)
Place your file on the cutter and push straight forward. Keep the file position as illustrated. (MA6)
After every cutter has been set, check the depth gauge and file it to the proper level as illustrated. (MA7)
WARNING
Be sure to round off the front edge to reduce the chance of kickback or tie- strap breakage.
(1)Appropriate gauge checker
(2)Make the shoulder round
(3)Depth gauge standard
Make sure every cutter has the same length and edge angles as illustrated. (MA8)
(4)Cutter length
(5)Filing angle
(6)Side plate angle
(7)Top plate cutting angle
WARNING
It is very important for smooth and safe operation to keep the cutters always sharp.
Your cutters need to be sharpened when:
•Sawdust becomes
•You need extra force to saw in.
•The cut way does not go straight.
•Vibration increases.
•Fuel consumption increases.
PS-EX MA9
■GEAR CASE
The reduction gears are lubricated by multipurpose,
Supply new grease every 25 hours of use or more often depending on the job condition.
When adding lubricant, use a grease gun to insert lubricant into the three grease nipples located on the gear case. (MA9)
(1) Grease fitting