探討滑觸線保養與維護需知（DHH-500/800）
集電器：至少每季度檢查一次。重點檢查緊固件有無松動、移位及塑料件和流動件磨損情況，檢查彈簧拉力（集電器電刷與導軌的接觸壓力應保持一定壓力（見下表）。發現題目及時處理。
Collector: at least quarterly check once a. Focus on examination of the fastener looseness, displacement and plastic parts and flow parts wear, check the spring tension (contact pressure collector brush and guide should maintain certain pressure (see table below). Find the problem timely treatment.
日常檢查：重點檢查軌道的平直度有無顯著偏差（大于20mm）、錯位，絕緣保護件有無脫落、斷裂、破損，不銹鋼“v"型槽有無翹起；軌道上有無異物及導電粉塵等。必要時應檢測其絕緣電阻是否符合要求（相間絕緣電阻應≥5MΩ）。
Daily check: focus on examination of rail straightness has no significant deviation (more than 20mm), dislocation, insulation protection piece with no loss, damage, fracture, stainless steel "V" type groove is no tilt; orbital foreign bodies and conductive dust etc.. When necessary, to detect the insulation resistance is to meet the requirements (interphase insulation resistance should be greater than or equal to 5M.).
連接件：至少每年檢查一次。重點檢查緊固螺栓、焊縫及支撐件是否松動、銹蝕、移位等，發現題目，及時處理。
Connections: at least once a year to check. Focus on examination of the fastening bolts, welds and support is loose, corrosion, shift, found the problem, timely treatment.
