保養應每天進行一次，主要內容是保持車身表麵清潔，將蓄電池表麵清理幹淨，檢查電源線是否牢固，鏈條鬆緊是否正常。

每周進行一次，保養內容除日常保養內容外，應重點檢查各部件工作情況是否正常，各緊固件是否有鬆動，鏈條鬆緊是否適當，鏈條接頭連接銷是否彎扭，內外門架上下運動是否正常，液壓接頭是否漏油，機械部分是否有不正常的磨損，電器部分是否有不正常的溫升和火花等，如果發現有不正常現象應及時調整和清除。

每隔三個月進行一次，是檢查蓄電池電解液的比重是否適當，電池接線端子是否幹淨，否則必須將電解液的比重按規定調整好，將接線端子清理幹淨，並塗上少許凡士林，正確地擰緊。而後檢查各電器接頭是否可靠，開關是否正常，並檢查電器緣是否正常。

每半年進行一次，主要內容是將驅動輪的傳動齒輪和軸承加潤滑油，給各轉動關節加潤滑油，同時檢查各緊固件是否牢固，各車輪是否轉動靈活，貨叉升降是否正常。

每隔12個月進行一次，檢查油缸是否處於正常狀態，是否有內漏和外漏，液壓接頭、液壓膠管是否可靠無泄漏現象。液壓油是否清潔，一般在12個月更換一次液壓油。

The maintenance shall be carried out once a day. The main contents are to keep the body surface clean, clean the battery surface, and check whether the power line is firm and whether the chain tightness is normal.

The maintenance shall be carried out once a week. In addition to the daily maintenance, it shall focus on checking whether the working conditions of all parts are normal, whether the fasteners are loose, whether the chain tightness is appropriate, whether the connecting pin of chain joint is bent and twisted, whether the up and down movement of inner and outer door frames is normal, whether the hydraulic joint leaks oil, and whether the mechanical part is abnormally worn, Whether there is abnormal temperature rise and spark in the electrical part. If any abnormal phenomenon is found, it shall be adjusted and removed in time.

Once every three months, first check whether the specific gravity of the battery electrolyte is appropriate and whether the battery terminals are clean. Otherwise, the specific gravity of the electrolyte must be adjusted according to the regulations, the terminals must be cleaned, coated with a little vaseline and tightened correctly. Then check whether the electrical connectors are reliable, whether the switches are normal, and whether the electrical insulation is normal.

Once every six months, the main content is to add lubricating oil to the transmission gear and bearing of the driving wheel and to each rotating joint. At the same time, check whether the fasteners are firm, whether the wheels rotate flexibly and whether the lifting of the fork is normal.

Every 12 months, check whether the oil cylinder is in normal condition, whether there is internal and external leakage, and whether the hydraulic joint and hydraulic hose are reliable and free of leakage. Whether the hydraulic oil is clean, generally replace the hydraulic oil once every 12 months.