9Maintenance scheduleOperating hour BeforeOperationDaily(10 h) 25 h Ifrequired Corresponding pageWhole unit Visually inspect for damagedparts8All fixing screws and nuts Tighten 8Blades Inspect for damage, crack anddull edge8Adjust the clearance 8Gear case Supply grease 8Drive axle Supply grease 8Power unit Refer to the instruction manual of the power unitTroubleshootingProblem Probable cause SolutionThe motor does not start. Refer to the instruction manual of the power unit.The motor stops soon after its start.The maximum speed is limited.The blades do not move.Stop the motor immediately!Inappropriate angle of cutter unit. Make sure the angle lock engages properly.A twig is caught by the blades. Remove the foreign matter.The drive system does not work properly. Ask Makita authorized service center toinspect and repair it.The unit vibrates abnormally.Stop the motor immediately!The drive system does not work properly. Ask Makita authorized service center toinspect and repair it.The blades do not stop.Stop the motor immediately!The power unit does not work properly. Refer to the instruction manual of the powerunit.Technical dataModel EN401MPDimensions (L x W x H) mm (inch) 1,624 x 108 x 90 (64” x 4-1/4” x 3-1/2”)Mass kg (lbs) 2.7 (6.0)Effective cutting length mm (inch) 490 (19-1/4”)Cutting blade angle 135° (up 45°, down 90°)Gear ratio 1/4.78