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3.2 Pay attention to warning signs
3.3 Maintenance and care for lifters shall be undertaken by operators having been trained.
Lubricating oil shall be applied to all axis of the machine for once a week via engine oil
container. In addition, lubricating grease shall be applied to moving parts including safety
rack and block and sliding for once a week. Hydraulic oil shall be replaced once a year.
The oil level shall be kept at upper limit for a long period of time. Upon replacing hydraulic
oil, old oil in oil tank shall be released. Upon filling new oil, such oil shall be filtered with oil
filter. For each shift, the inspection on whether the safety device is flexible and reliable
shall be carried out.
3.4 Moving condition of steel wire rope shall be normally observed. If there is damage, such