Upper die should be aimed at lower die down after shutdown, until after work, if you need to boot, or other operations, should will choose in manual mode, and ensure safety. The maintenance content is as follows: 1, hydraulic circuit, a. Weekly check the tank oil level, such as hydraulic system also should check after repair, oil level is lower than the oil window should include hydraulic oil; b。 This machine is used for the hydraulic oil for ISO HM46 or MOBIL DTE25; c。 New work 2000 hours after the oil should be replaced, later every work of 4000 ~ 6000 hours after the oil should be replaced, the oil change every time, should be cleaning tank; d。 System oil temperature should be between 35 ℃ ~ 60 ℃, shall not exceed 70 ℃, such as too high will lead to damage of metamorphic oil and accessories. 2, filters, a. Every time an oil change, filter should be replaced or cleaned thoroughly; b。 Associated with the machine alarm or clean oil filter and other abnormal, should be replaced; c。 Tank on the air filter, clean every three months to check, best 1 year replacement. 3, a hydraulic components. Monthly clean hydraulic components ( Base board, valve, motor, pump, tubing, etc. ) , prevent dirt from entering the system, cannot use cleaner; b。 Phone use after a month, check whether there is any deformation on the oil pipe bend, if there is any exception should be replaced, use two months later, should tighten the joint of all parts, for the work should be shut down, when the system pressure.