PSZ2450S
9. Maintenance
Maintenance, replacement, or repair of the emission control device and systems may be performed by any
■MAINTENANCE CHART
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| Every | Every | Every |
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| 25 | 50 | 100 |
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| System/compornent | Procedure | Before | hours | hours | hours | note |
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| use | after | after | after |
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| fuel leaks, fuel spillage | wipe out | ✔ |
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| fuel tank, air filter, fuel filter | inspect/clean | ✔ | ✔ |
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| replace, if necessary |
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ENGINE | idle adjusting screw | see ■ADJUSTING | ✔ |
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| replace carburetor |
IDLING SPEED (p.13) |
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spark plug | clean and readjust |
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| GAP: .025in(0.6~0.7 mm) | |
electrode gap |
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| replace, if necessary | |||
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| cylinder fins, intake air cooling vent | clean |
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| muffler, spark arrester, | clean, |
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| cylinder exhaust port | remove piled up carbon |
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SHAFT | throttle lever, ignition switch | check operation | ✔ |
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gear case | grease |
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screws/nuts/bolts | tighten/replace | ✔ |
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UNIT | oiling port | clean | ✔ |
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guide bar | clean | ✔ |
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CUTTING |
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sprocket | inspect/replace |
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saw chain | inspect/replace | ✔ |
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MA1 |
(1) |
MA2 |
■OILING PORT
Dismount the guide bar and check the oiling port for clogging. (MA1)
(1) Oiling port
■GUIDE BAR
Remove sawdust in the bar groove and the oiling port. (MA2)
(1)Groove
(2)Oiling port
MA4
MA5
■OTHERS
Check for fuel leakage and loose fastenings or damage to major parts, especially housing joints and guide bar mounting. If any defects are found, make sure to have them repaired before operating again.
■SPROCKET
Check for extensive wear, and replace it when the teeth are worn over 0.3mm. (MA4)
(1) Sprocket
■GUIDE BAR
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.
MA3 | (Type: Sprocket nose) |
| Grease the nose sprocket from the |
| feeding port on the tip of the bar. (MA3) |
| (1) Grease port |
| (2) Sprocket |
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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.(MA5)
(1)Ruler
(2)Gap
(3)No gap
(4)Chain tilts
