Troubleshooting - Arbortech AS170 Manual De Instrucciones

11. TROUBLESHOOTING

This fault diagnosis is intended for use by persons familiar with mechanical devices, and provides a basic
capability to maintain the tool. To correct the user serviceable faults, refer to the Maintenance section of this
manual. The more complex repairs as noted below, must be performed by an authorised service centre.
ITEM SYMPTOM
1 Motor overheating
2 Noisy operation or unusual
vibration
3 Handle rubber mounts
damaged or worn
4 One or both conrods/blades
loose, even when mounting
bolts tightened
5 Tool running and blades not
moving
7 Blades continually comming
loose
8 Worn pulleys
9 Slow cutting performance
10 Blades rubbing against each
other with excessive force
11 Blades rubbing together with
excessive force.
12 Blade teeth chipped or lost.
·
13 Loose top handle.
CHECK/REMEDY
• Verify that all cooling vents are not obstructed by operators hand, debris
in vents, or other. Remedy or clean as required.
• Verify blades are not rubbing against each other with excessive force,
either at cutting edge or close to blade mounts.
• Blades may be worn and overheating. Replace as required.
• Check that belt tension is not excessive.
• Check that bearings have not failed by removing plastic side cover and
belt and rotating both pulleys independently checking for roughness. The
power pulley should rotate easily and smoothly. The driven pulley should
rotate smoothly but will have a "springy" feel, wanting to stay in either of 2
positions.
• Verify that the motor housing is secure with the tool. If loose, refer to
authorised service centre immediately.
• Blades loose -tighten blade mount bolts
• Blade failure - replace blade set
• Leaf spring failure - contact authorized service centre
• Bearing failure - contact authorized service centre.
• Gearbox failure - contact authorized service centre.
• Handle rubber mounts damaged or worn - replace.
• Replace
• Leaf spring failure - contact ARBORTECH authorised service centre.
• Loose belt or broken belt- re-tension or replace as necessary.
• Worn belt - replace belt.
• Check the blade bolt holes. If bolt holes are elongated replace blades
• Contact ARBORTECH authorised service centre.
• Teeth worn, chipped or lost. Sharpen or replace blade.
• Belt slipping.
• Attempting to cut material which is too hard.
• Remove blade/s and bend slightly to correct.
• Occurs occasionally if hard material is encountered, or if the "back side"
of teeth are impacted.
• Care not taken in setting tool down on teeth on hard surfaces or loose in
tool box.
• Worn blades will start to become hot in certain areas, causing teeth to de-
bond - replace blades.
• Material too hard.
• Worn or damaged rubber bushes - replace.
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