Hitachi VH650 Instruction Manual - Page 15

Maintenance chart ACTION Drain air line filter daily. Keep lubricator filled. Clean fillter element - then blow air through filter in direction opposite to normal flow. Clean magazine and feeder mechanism. Keep push lever working properly. Lubricate the Nailer after nailing. Drain air compressor. WHY Prevent accumulation of moisture and dirt. Keep the Nailer lubricated. Prevent clogging of filter with dirt. HOW Open manual petcock. Fill with Hitachi pneumatic tool lubricant. Follow manufacturer's instructions. Prevent a jam. Blow clean daily. Promote operator safety and efficient Nailer operation. Extend the Nailer life. Keep the Nailer operated properly. Blow clean daily. Supply 2 - 3 drops of lubricant into the Nailer. Open petcock on air compressor tank. Operator troubleshooting Most minor problems can be resolved quickly and easily using the table below. If problems persist, contact a Hitachi authorized service center for assistance. PROBLEM Nailer operates, but no nail is driven. Weak drive. Slow to cycle. Drives too deep. Skipping nails. Intermittent feed. Drives properly during normal operation, but does not drive fully at faster nailing speeds. CHECK METHOD Open nail guide. Check for a jam. Check collating plastic for breakage. Check for proper nails. Check function of feeder per page 14. Check air pressure. Driver blade worn ? Piston O-ring worn or damaged ? Check air pressure. Check for proper nails. Check function of feeder per page 14. Piston O-ring cut or heavily worn ? Check inside diameter of air hose. CORRECTION Clear a jam. Feed nails. Use only recommended nails. Clean and lubricate. Increase air pressure. (Do not exceed 120 psi(8.3 bar 8.5kgf/cm9) Contact Hitachi for replacement. Use Hitachi pneumatic tool lubricant. Reduce air pressure. (Adjust 70 - 120 psi) Use only recommended nails. Clean and lubricate. Use Hitachi pneumatic tool lubricant. Contact Hitachi for replacement. Use larger air hose. -15-