先做 5 个 60 秒快检，多数水痕当场消失

Five 60-Second Checks That Clear Most Streaks

在拆任何东西之前，按顺序做完这五步：一、清走地面大颗粒垃圾。碎石、扎带、缠绕膜尾巴卡在胶条下面，是水痕最常见的单一原因，作业前预扫是最便宜的解决方案。二、抬起吸水耙，用湿抹布擦净胶条上下两个唇边，一颗小石子或一撮毛发就足以拉出一条长水痕。三、排空回收箱，回收箱满或浮球断流阀被顶起会让真空瞬间归零，机器看起来在跑但完全不吸水。四、降低行进速度，水回收需要时间，胶条后面拖出水尾时先减速。五、换一块干净的刷盘或百洁垫，吸饱污垢的垫子只会把脏水和药剂抹开，形成带状残留。这五步做完仍有问题，再往下逐项排查。

Before you dismantle anything, run these five in order. One: clear large debris. Grit, zip-ties and shrink-wrap tails caught under the squeegee are the single most common cause of streaking, and a pre-sweep is the cheapest fix there is. Two: drop the squeegee and wipe both lip edges with a damp rag - one pebble or a clump of hair will draw a long streak. Three: empty the recovery tank. A full tank or a lifted ball float shutoff kills vacuum instantly, so the machine runs but picks up nothing. Four: slow down. Water recovery needs time, so reduce travel speed wherever you see a watery tail. Five: fit a clean pad or brush; a loaded pad simply smears soil and chemistry into residue bands. If the problem survives all five, work down the list below.

第 1–3 项：吸水胶条的状态、角度与下压

Checks 1-3: Squeegee Condition, Angle and Down-Pressure

胶条是水痕问题的第一嫌疑人。第 1 项查刃口：对光看是否有缺口、波浪或圆钝，锋利平直的刃口才能刮干净；多数胶条是四刃设计，磨损后旋转到新的一边即可继续用，四边都用完再更换。第 2 项查角度与浮动：吸水耙应当均匀轻贴地面拖行；如果中间干、两端湿，说明下压过大或俯仰角不对，应减小下压；如果中间湿、两端干，则应加大俯仰角并检查中间吸口是否堵塞。第 3 项查支撑轮与框架：吸水耙上的滚轮若被毛发缠死不能自由转动，会被磨出平面并拖地，既造成单侧水痕，也会把地面划伤。轮子转不动、框架变形、脚轮高度不一致，都会导致单边水痕。出现刃口发亮圆钝、四边已全部用过、必须靠加大下压才吸得干净、或在固定的轮位反复出现同一道线时，就该整套更换胶条了。

The squeegee is suspect number one. Check 1, the edge: hold it to the light and look for nicks, waves or rounding, because only a crisp straight edge wipes clean. Most blades have four usable edges, so rotate to a fresh one and only replace once all four are used. Check 2, angle and float: the squeegee should trail with light even contact. Dry in the centre and wet at the ends means too much down-pressure or wrong pitch, so back it off; wet in the centre and dry at the ends means increase pitch and inspect the centre vacuum slot for blockage. Check 3, wheels and frame: if the squeegee castors are bound with hair and cannot roll freely they wear flat and drag, causing one-sided streaks and scratching the floor. Bent frames and uneven castor heights do the same. Replace the blade set when edges look shiny and rounded, all four edges are used, you need extra pressure just to get pickup, or the same line repeats at a fixed wheel position.

第 4–6 项：真空回路——软管、密封与浮球

Checks 4-6: The Vacuum Path - Hoses, Seals and Float

如果水几乎完全吸不上来，先做一个 10 秒判断：把手指伸到吸水耙的吸口下方，感觉不到吸力就说明回路被堵。第 4 项拆下吸水软管，用手掌堵住管口试吸力；若管口有吸力而吸口没有，堵点就在吸水耙内部。清堵可以打开回收箱盖找到软管接口，用自来水反向冲洗。第 5 项查密封：回收箱盖的密封垫必须压实，清水箱加水口盖也要拧紧，任何一处漏气都会让真空度掉下来，表现为「吸一半」。软管有裂纹、针孔或接头松脱是同一类问题。第 6 项查浮球与滤网：浮球断流阀卡住或滤网被污垢糊死会直接切断吸力，拆下用水冲洗即可。真空电机的声音也要听——音调均匀说明正常，声音发虚或忽高忽低时，先查真空滤芯和线路，不要急着判定电机损坏。

If almost no water is recovered, make a ten-second diagnosis: put your fingers under the squeegee vacuum slot; no suction means the path is blocked. Check 4: pull the vacuum hose off the squeegee and test suction with your hand over the hose end. Suction at the hose but not at the slot puts the blockage inside the squeegee assembly. To clear it, open the recovery tank lid, find the hose port and flush water back through it. Check 5, seals: the recovery tank lid gasket must seat tightly and the clean-water fill cap must be tight, because any leak drops vacuum lift and produces half-hearted pickup. Cracked hoses, pinholes and loose cuffs belong in the same category. Check 6, float and screen: a stuck ball float or a gunked filter screen cuts suction outright and only needs rinsing. Listen to the vacuum motor too - an even tone is healthy, and if it sounds weak or uneven check the vacuum filter and wiring before condemning the motor.

第 7–9 项：出水不畅、药剂过量与硬水

Checks 7-9: No Solution Flow, Over-Dosing and Hard Water

第 7 项，机器不出水或出水太少：先看清水箱液位与进水滤网，再检查出水阀/电磁阀是否被水垢或残膜堵塞，管路有没有折弯；很多机型出厂默认最小流量档，调大流量阀即可解决。药剂长期静置会在清水箱内壁形成薄膜，排水时这层膜会糊住箱内出水口的过滤网，因此清水箱也需要定期冲洗。管路结垢可按厂家指引用温水冲洗。第 8 项，药剂配比：过量稀释液会留下残膜光晕，干后地面发雾；严格按标签配比，并使用厂家认可的低泡清洁剂。泡沫过多会被吸进真空回路造成假性失吸，在回收箱内加少量消泡剂即可缓解。第 9 项，水质：硬水中的矿物质会留下水膜条纹，可改用软化水或增加一遍清水过水，问题通常立刻改善。

Check 7, no or little solution: start with tank level and inlet screen, then inspect the solution valve or solenoid for scale and film and clear any kinked lines. Many machines ship on the lowest flow setting, so opening the flow valve often solves it outright. Detergent left standing forms a film inside the solution tank that coats the outlet strainer when the tank is drained, which is why the clean-water tank needs periodic flushing too; flush calcification with warm water per the manufacturer's guidance. Check 8, dilution: over-mixed detergent leaves residue halos and a hazy floor once dry. Follow label dilution exactly and use a manufacturer-approved low-foam detergent. Excess foam gets drawn into the vacuum path and mimics suction loss - a small dose of defoamer in the recovery tank fixes it. Check 9, water quality: minerals in hard water leave filmy streaks, so switch to softened water or add a clean-water rinse pass.

第 10–12 项：刷盘匹配、操作手法与电池

Checks 10-12: Pad Selection, Technique and Batteries

第 10 项，刷盘/百洁垫匹配错误：过硬过粗的垫会在软性面层上留下旋纹甚至微划伤，过软的垫则只是把污垢抹开；粗糙面（防滑砖、水磨石、有缝地砖）用刷，光滑密封面（环氧、抛光混凝土、PVC）用垫，按污染程度选颜色等级。刷毛磨到磨损指示线以下必须更换，通常 3–6 个月一次。刷盘被铁丝、绳子、缠绕膜缠住会导致不转或转速不匀，长时间可能烧毁刷盘电机，作业前检查一次即可避免这项高额维修。第 11 项，操作手法：重污染区用两遍法——第一遍开水开刷做刷洗，第二遍只开真空做回收；每道之间重叠 5–8 厘米（2–3 英寸），让胶条压住上一道的水线；转弯时胶条容易跳动打颤，应减速并确认脚轮高度一致。第 12 项，电池：铅酸电池要保持正确液位（只补蒸馏水）、避免深度放电、每次用后充满；如果续航突然大幅缩短，做一次电池检测，个别弱电芯会拉低整组电压，进而削弱真空吸力和回收效果。要注意充电次数是有限的，每插一次充电器就算一个循环，无论充 2 分钟还是 10 小时。

Check 10, wrong pad or brush: an over-aggressive pad leaves swirl marks or micro-gouges on softer finishes while a too-soft pad just smears. Use brushes on textured surfaces such as anti-slip tile, terrazzo and grouted floors, and pads on smooth sealed surfaces such as epoxy, polished concrete and vinyl, matching pad grade to soil level. Replace brushes once bristles wear past the wear indicator, typically every 3-6 months. Brushes tangled with wire, string or shrink wrap stop rotating or rotate unevenly and can overheat and destroy the brush motor - one pre-shift check avoids an expensive repair. Check 11, technique: on heavy soil use the two-pass method, scrubbing with solution on the first pass and recovering with vacuum only on the second; overlap each pass by 2-3 inches so the squeegee picks up the previous water line; slow down through turns, where the squeegee tends to chatter and lift. Check 12, batteries: keep flooded lead-acid cells topped with distilled water only, avoid deep discharges and charge fully after each use. A sudden runtime drop warrants a battery test, since one weak cell drags the whole pack down and weakens vacuum performance. Remember charge cycles are finite - every time the charger is plugged in it counts as a cycle, whether for two minutes or ten hours.

回收箱异味：细菌滋生的处理与预防

Recovery Tank Odor: Treat the Bacteria, Then Prevent It

回收箱发臭的根源是残留污水中的细菌繁殖与化学残留。处理方法：用中性清洁剂或稀释的漂白水做一次深度清洗，重点刷洗箱壁、浮球和滤网，然后彻底排空并晾干。预防要靠三个习惯：一是每次作业结束立即排空并用清水冲洗回收箱，不要把污水过夜；二是充电时把回收箱盖和机器上盖掀起互相支撑，一方面让箱体通风干燥，另一方面释放电池充电时产生的热量与气体；三是刷盘和百洁垫用完要洗净晾干，不要湿着塞回机器。清水箱同样需要定期冲洗，避免药剂成膜。

A foul recovery tank is bacterial growth plus chemical build-up in residual dirty water. To treat it, deep clean the tank with a mild detergent or a diluted bleach solution, scrubbing the walls, float and screen, then drain completely and let it dry. Prevention comes down to three habits. First, drain and rinse the recovery tank immediately after every shift and never leave dirty water overnight. Second, when charging, prop the recovery tank lid and machine top against each other so the tank airs out and the heat and gases produced during battery charging can escape. Third, wash and dry brushes and pads instead of storing them wet on the machine. Flush the solution tank periodically as well to stop detergent film forming.

把排故变成保养制度：日/周/计划三级清单

Turn Troubleshooting Into a Maintenance Routine

把上面这些动作固化成制度，故障率会大幅下降。每日：冲洗回收箱与清水箱、清理滤网与吸口、擦净胶条两个唇边、检查刷盘/垫磨损、清理刷盘缠绕物。每周：检查软管与密封垫有无裂纹老化、清洗真空滤芯、检查脚轮与吸水耙滚轮是否自由转动、实测一次吸水效果。计划性：按周期更换胶条与刷盘、清洗出水阀与管路、做电池检测、记录每次保养与更换件。当出现下列情况时就应联系专业维修：按清单做完仍持续水痕、完全无出水或吸力时有时无并伴随大量泡沫、续航快速下降或充电不均、漏液、电气故障或控制面板报错代码。ApexClean（Changzhou Yongle）在清洁设备领域有 25 年经验，可提供易损件清单与远程排故支持。

Lock these actions into a schedule and fault rates drop sharply. Daily: rinse recovery and solution tanks, clean screens and the vacuum slot, wipe both squeegee lips, inspect pad and brush wear, and clear anything tangled in the brush. Weekly: inspect hoses and gaskets for cracks and ageing, clean the vacuum filter, confirm castors and squeegee wheels roll freely, and test pickup. Planned: replace blades and brushes on schedule, clean the solution valve and lines, test batteries and log every service. Call a professional when streaks persist after the full checklist, when there is no solution flow or intermittent pickup with heavy foaming, when runtime falls fast or charging is uneven, or when you see leaks, electrical faults or panel error codes. ApexClean (Changzhou Yongle) has 25 years in cleaning equipment and can supply wear-part lists and remote troubleshooting support.