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MAINTAINING EQUIPMENT
Keep equipment in good repair by adopting a regular maintenance program. Before use, examine the
general condition of equipment. Inspect guards, switches, tool cord set and extension cord for damage.
Check for loose screws, misalignment, binding of moving parts, improper mounting, broken parts and any
other condition that may affect its safe operation. If abnormal noise or vibration occurs, turn the tool off
immediately and have the problem corrected before further use. Do not use a damaged tool. Tag
damaged tools “DO NOT USE” until repaired. See Repairs.
• Mechanical inspection
• Cleaning (pulleys, spindles, bearings, housing, etc.)
• Electrical inspection (switch, cord, plugs, etc.)
• Testing to assure proper mechanical and electrical operation
• Check nuts on shock absorbers and bottom plate for tightness
• Check screws on bottom bearing for tightness
• Check all screws and fittings for a tight and secure fit
• Keep a sharp blade in machine for optimum performance
CLEANING
Clean dust and debris from vents. Keep the equipment’s handle clean, dry and free of oil or grease. Use
only mild soap and a damp cloth to clean since certain cleaning agents and solvents are harmful to
plastics and other insulated parts. Some of these include: gasoline, turpentine, lacquer thinner, paint
thinner, chlorinated cleaning solvents, ammonia and household detergents containing ammonia. Never
use flammable or combustible solvents around tools.
REPAIRS
If your tool is damaged, contact National for a return authorization number and return the entire tool.
• Shipments are not accepted without a return authorization number.
• COD or freight collect shipments will not be accepted.
WARNING:
To reduce the risk of injury, electric shock and damage to the tool, never immerse
your tool in liquid or allow a liquid to flow inside the tool.
WARNING:
To reduce the risk of injury, always unplug equipment from power source before
performing any maintenance. Never disassemble the tool or try to do any rewiring on the tool’s
electrical system. Failure to do so could cause damage to machine or serious injury. Contact National
for ALL repairs.
MAINTENANCE
