Nakayama PRO EC2350, Manual

Page: 10 / 19

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9
Guide bar maintenance
Most guide bar problems can be prevented mere by keeping the chain saw well maintained. Incorrect filing and non-uniform cutter and depth gauge settings
cause most guide bar problems, primarily resulting in uneven bar wear. As the bar wears unevenly, the rails widen, which may cause chain clatter and difficulty
in making straight cuts. Insufficient guide bar lubrication and operating the saw with a chain this is too tight will contribute to rapid bar wear(see Section
Chain maintenance instructions). To help minimize bar wear, the following guide bar maintenance is recommended.
Oil passages
Oil passages at bar pad should be cleaned to ensure proper lubrication of the bar and chain during operation. This can be done using a soft wire small enough
to insert into the oil discharge hole.
NOTE: The condition of the oil passages can be easily checked. If the passages are clear, the chain will automatically give off a spray of oil within seconds of
starting the saw. Your saw is equipped with an automatic oiler system.
Symptom Possible cause Fault correction
Chain saw fails to operate -- Kickback brake is activated
-- No power
-- Mains socket faulty
-- Extension cord damaged
-- Fuse faulty
-- Pull hand guard back in position
-- Check power
-- Use another socket
-- Check cord, replace
-- Replace fuse
Chain saw operates intermittently -- Extension cord damaged
-- Loose connection
-- Internal wiring defective
-- On/Off switch defective
-- Check cord, replace
-- Contact service agent
-- Contact service agent
-- Contact service agent
Dry chain -- No oil in reservoir
-- Vent in oil filler cap clogged
-- Oil passage clogged
-- Refill oil
-- Clean cap
-- Clean oil passage outlet
Kickback Brake / Run-down brake Brake does not stop chain Contact service agent
Chain/chain bar overheats -- No oil in reservoir
-- Vent in oil filler cap clogged
-- Oil passage clogged
-- Chain is over tensioned
-- Dull chain
-- Refill oil
-- Clean cap
-- Clean oil passage outlet
-- Adjust locking knob
-- Sharpen chain or replace
Chain saw rips, vibrates, does not saw properly -- Chain tension too loose
-- Dull chain
-- Chain worn out
-- Chain teeth are facing in the wrong direction
-- Adjust locking knob
-- Sharpen chain or replace
-- Replace chain
-- Reassemble with chain in correct direction
WARNING! Never use tools with defective On/Off switches or defective Kickback brake (Hand Guard).
WARNING!
If the chain saw does not perform properly, or sound are abnormal, or motor cannot be started, or stopped as described, or the chain brake does
not work properly, or any other irregularity, or malfunction occurs, do not attempt to repair the chain saw by yourself.
Please contact helpline or local service center.
Environmental protection
Electrical product waste should not be disposed of with household waste. Please recycle where appropriate facilities exist. Check
with your Local Authority or retailer for recycling advice.
Troubleshooting
* The manufacturer reserves the right to make minor changes to product design and technical specifications without prior notice unless these changes significantly affect the performance and safety of the
products. The parts described / illustrated in the pages of the manual that you hold in your hands may also concern other models of the manufacturer’s product line with similar features and may not be
included in the product you just acquired.
* Please note that our equipment has not been designed for use in commercial, trade or industrial applications. Our warranty will be voided if the machine is used in commercial, trade or industrial busi -
nesses or for equivalent purposes.
* To ensure the safety and reliability of the product and the warranty validity, all repair, inspection, repair or replacement work, including maintenance and special adjustments, must only be carried out by
technicians of the authorized service department of the manufacturer.