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一、克令吊操作形态
凭证说明书操作模范，MHI 克令吊装卸货操作有2 种形态，辞别是钩头和持斗形态，说明书里是这么界说的：
1. 钩头形态
Hook operation [Intended purpose]The hook operation is performed for a mass cargo such as containers or blocks.The hook hung from the tip of the deck crane jib is used to hang a cargo with a wire rope in order to load/unload[Maximum load] Same as the rated load of the deck crane.30.5 ton
钩头形态用于装卸集装箱或块状之类大件货色，钩头下方悬挂钢丝用于装卸货色。该形态最大负荷可达克令吊的标定负载，本轮是 30.5 吨。
2. 持斗形态
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Grab operation[Intended purpose] The grab operation is performed for a bulk cargo suchas, coals, iron stones and nickels. The grab bucket (opening type cargo handling equipment) is hung from the hook at the tip of the deck crane in order to load/unload.[Maximum load] 24t。
持斗形态用于装卸煤，铁矿，镍矿等散装货色，铲斗（绽开式的装卸货修复）悬挂于钩头下胜仗装卸货。该形态下本轮最大负载是 24 吨。
Precautions for grab operationThe grab operation is apt to apply more load to the deck crane than the hook operation due to followingr easons:
使用持斗形态的提神事项：由于下列原因使得持斗形态的负载较钩头形态负载大，原因如下：
● Unlike the hook operation, there is no hooking work required, operation cycle is apt to shorten.
与钩头形态不同，持斗形态不需要脱钩，挂钩，操作周期短。
Key Points for MHI Deck Crane Operating & Safety Device
● Because the grab bucket is equipped, the load is always applied.
因为加装了持斗，是以所有这个词这个词进程克令吊长久受载。
● It is hard to adjust loaded volume with the grab bucket method, which is apt to cause overload.
由于每个轮回持斗装卸量不好范围，是以有可能导致装货量超载。
● The operation by the controller is apt to have a great impact on the deck crane.Since the grab operation is apt to have a great impact on the components of the deck crane, itcould increase the risk of a serious accident.
持斗形态较钩头形态冲击负荷大。因其各个部件冲击较大，是以克令吊损坏的风险加大。
Do not operate the crane in the hook mode when carrying out the grab operation. (Turn the HOOK GRAB selector switch to“GRAB.”)
* Otherwise, the deck crane could be overloaded, resulting in equipment damage or serious accidents.
当使用持斗形态装卸货时，请将“HOOK-GRAB”选拔开关摆至 “GRAB”位置。
3. Warm-up operation 暖机操作
When the deck crane is used in low-temperature environment or when the deck crane is used on condition that the hydraulic oil temperature is 20ºC or less, rapid start of the hydraulic pump or crane will cause decrease in the service life of the hydraulic equipment (pumps, motors, etc.)
because the viscosity of the hydraulic oil increases with the temperature of the machine room dropped. In the worst case, the hydraulic equipment could be damaged.
当低温环境或液压油温度低于 20ºC，因油温低油粘度大，快速启动主油泵或胜仗操吊将镌汰液压安装（主油泵，油马达等）的使用寿命，严重时将导致修复损坏。
The following is the procedure of the warm-up operation. 下列是克令吊暖机门径
1. Starting the hydraulic pump 点动启动液压泵。
Press the start button for inching operation. (4 to 5 times) (Refer to the figure below.)
参考下图点动操作 4-5 次。
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● Oil pump starting in cold condition is not to be done rapidly, to be done gradually by inching operation of electric motor start/stop button.
低温下通过点动启停电机，渐渐启动主油泵
2．After oil pump starting, when the oil thermometer indicates below 20°, control handles are to be positioned on neutral and oil pump is to be idly run until the oil thermometer indicates over 20°.
电机启动运转后，若是温度还低于 20°，不要操作东宰杆，保持中位怠机运转，直到油温上涨至 20°以上。（温度计位于主宰室外油冷却器出口管路上）
Key Points for MHI Deck Crane Operating & Safety Device。
二．安全保护安装
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1. Hydraulic equipment 液压部件保护
(1) Thermostat for upper limit of oil temp. high。
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油温高保护If the upper limit of the hydraulic oiltemperature of the deck crane becomes 75ºC,the thermostat for upper limit of oil temp. highwill automatically be actuated.
当油温高>75ºC，电机罢手运转，油冷却器赓续运转，直到油温<65ºC，高温复位。
(2) Thermostat of electric motor for oil cooler
油冷却器温控器
The thermostat of electric motor for oil cooler detects the oil temperature in the hydraulic circuit to automatically start/stop the electric motor for the oil cooler.
Start Hydraulic oil temperature: 50ºC Stop Hydraulic oil temperature: 35ºC。
当油温在 35ºC-50ºC 时，冷却风机自动启停
(3) Thermostat for oil temp. low
油温低保护
The thermostat for oil temp. low is a device to protect the hydraulic pump at starting operation under low temperature. If the hydraulic oil temperature becomes below 10ºC, it will automatically be actuated.
当油温低于 10ºC 时，低温开关行动，MVLR 电磁阀行动，吊臂和反转无法操作。
<Resetting method>
复位方法
Once the oil temperature drops below 10 ºC, luffing and slewing operation cannot be performed until the temperature reaches 20ºC. Perform warm-up operation until the oil temperature becomes 20ºC or more while checking the oil temperature gauge. (Refer to “3.3.3 Warm-up operation”.)
当油温低于 10 ºC，吊臂和反转无法操作，履行暖机门径，直到油温高于 20ºC 以上。
Key Points for MHI Deck Crane Operating & Safety Device
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出厂设定：20℃，幅差 10℃，复位：30℃
zh皇冠手机网址多少(4) Relief valve (for hoisting, luffing and slewing)
泄压阀（用于升降，变幅，反转）
If the pressure in the hydraulic circuit becomes over the specified value, the relief valve will beopened and the hydraulic oil will be relieved.当系统中压力向上泄压阀设定值，泄压阀行动泄压。
For hoisting: Overload hoisting prevention and hydraulic circuit protection （20.6Mpa）For luffing and slewing: Hydraulic circuit protection （20.6Mpa）。
(5) Pressure switch
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If the pressure switch detects the pressurecorresponding to the overload, the relief valve will unload the circuit pressure to return the oil to the return line. （范围 MVHR）Also, the overload alarm lamp and buzzer on thecontrol panel will work to call operator's attention.
当压力开关（共 2 个,其触点为常闭，行动时断开，凭证操作形态不同，辞别设定 20/16Mpa）行动，触点断开，MVHR 电磁阀获电行动，将起升回路压力卸放至回油管路，Hoisting 无法行动，同期过载调换灯亮，蜂鸣报警。
2. 电器修复保护
(6) Off notch interlock (断槽联锁) 主宰杆上的微动开关
If each controller is not in the neutral position, the micro-switch installed in the controller detects that it is not in the neutral position, and the main electric motor will not start even if the start button is pressed.
若是主宰杆上的微动开关检测到主宰杆不在中位，主电机则无法启动，粗略当按下启动钮后，电机处于星三角转机时（设立 4 秒）操作东宰杆，电机也会罢手。
(7) “LUFF. LOWER LIMIT” switch 变幅下跌限位开关
When the “LUFF. LOWER LIMIT” switch is switched to “BYPASS”, the following limit switches (4pcs.) will be inactive. 当“变幅下跌限位开关”摆至“BYPASS”, 下列 4 个限位将失去保护。
Key Points for MHI Deck Crane Operating & Safety Device
● Limit switch of slack detector for hoisting wire rope 起升钢丝粗疏限位
● Limit switch of slack detector for luffing wire rope 变幅钢丝粗疏限位
排列三电子游戏● Luffing lower limit switch 变幅下跌限位
● Collision prevention limit switch 钩头吊臂间距防撞限位
因此当此开关摆至“BYPASS”时，要格外提神操吊安全。
皇冠客服飞机：@seo3687
(8) Overload test mode selector switch （货色超载测试形态：即旁通压力开关）
The over load test mode selector switch disables the pressure switch for over load test.
When “OVERLOAD TEST MODE” is selected, the pressure switch is disabled and the load limit will not work. (Select the “NORMAL OPERATION” after using the overload test mode.) Also the buzzer sounds at intervals of 1 second when the “OVERLOAD TEST MODE” is selected.
当选拔开关摆至“OVERLOAD TEST MODE”时，2 个过载压力开关失去作用，实验过载时将无过载保护，但启动箱面板蜂鸣器会发出嘀嘀声。
(9) Pressure switch test mode selector switch。
压力开关测试形态选拔开关
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While the switch is turned to "TEST MODE", the release pilot pressure of the hoisting motor brake doesn't rise. Therefore, the disk brake continues to work even if the operation handle is operated, and the hydraulic circuit pressure will rise.
当此开关摆至"TEST MODE"时，主宰起升时油马达剎车将不会缩小，测试系统压力是否上涨，待升到压力开关设定值后，MVHR 行动，调换灯亮。可凭证操作形态辞别选拔测试“Hook 或 Grab”压力开.“Hook”压力开关设立 20Mpa,对应负载 30.5T; 开关指针调换高度约为 7mm, “Grab”压力开关设立 16 Mpa, 对应负载 24T 开关指针调换高度约为 9mm(10) Overload protection device （主电机过热过载保护）。
The main electric motor is equipped with thermostat (TH1) and thermal relay (51M) as the overload protection devices. For the electric motor for oil cooler, the thermal relay (51F) is equipped.
主电机配有 TH1 过热保护和 51M 热继电器保护，冷却器电扇电机也配有 51F 热继电器保护。
When these protection devices are actuated, the main electric motor will stop, and“Motor overload lamp” (RL2) will light or blink.
当这 3 个保护行动，主电机罢手，电机过载灯闪亮。
The overload protection device of the electric motor is actuated if the temperature increased due to overcurrent or unbalance of the 3-phase current occurred. Therefore, missing phase (one of three phases is faulty) operation can also be protected. So, it is necessary to check whether the overload is the real cause of the actuation of the protection device. Because poor contact betweenthe ring and brush in the slip ring could also be the cause, take extreme care when deciding the cause.
www.royalbookmakerhome.com当主电机由于过流或 3 相电流拒抗衡引起绕组温度升高，电机过热保护行动，因此该保护也具有缺相保护功能，畸形是当滑环和碳刷构兵不良引起的过热保护。
Key Points for MHI Deck Crane Operating & Safety Device。
(11)其它保护：
主油泵电机过载：热继电器保护，电机过载灯亮，蜂鸣常向；
冷却器电机过载：主泵电机罢手，冷却器电机罢手，冷却器电机过载灯每 0.5s 闪动，蜂鸣报警常向；
主油泵电机温控开关过热保护，电机绕组过热，温控保护行动，主电机停，油温高及主电机过载灯均 1s 闪亮, 待两报警灯消掉后自动复位。
Braking mechanism 剎车安装
Dual braking mechanism is provided to the deck crane.
克令吊建立双剎车安装：机械碟剎和液压回路均衡阀制动
(1) Mechanical disc brake 碟剎行动
1)当电机运转，换向阀处于中位时，起升，变幅剎住，反转缩小；
2)当电机罢手时，所有这个词（3 个）剎车均抱死；
3)当限位开关行动，电机罢手时，3 个剎车均抱死（不管主宰杆在什么位置）
(2) Braking with a counterbalance valve in the hydraulic circuit. 均衡阀制动
提神吊臂因油路不测故障俄顷掉落或反转，也可提神油泵马达自转（卷筒自转）。
操作故障风光案例
login 贝博彩票(1). 主宰杆行程开关引起的故障
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由于主宰杆上的微动开关范围剎车电磁阀，微动开关上的滚轮为塑料材质，年限深刻可能磨损，导致主宰杆微动时构兵不良，剎车打不开，但范围阀（换向阀）此时已行动向油马达供油，待主宰杆进一步操作时，微动开关行动，剎车俄顷大开，导致油压波动，使油马达转速突变，导致货色舞动横暴，增多危境。
因此，平时操吊功课时应提神剎车调换灯行动情况，平素剎车灯亮应优先于卷筒行动时辰，也不错同步，但非论怎么剎车调换灯亮的时辰弗成晚于卷筒行动时辰，幸免货色踟蹰横暴。
(2). 均衡阀节流孔
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均衡阀充任液压系统的液压制动锁，提神吊臂因油路不测故障俄顷掉落或反转，也可提神油泵马达自转（卷筒自转）常見故障为吊貨下跌速率较慢，可能是均衡閥流量范围阻尼孔脏堵导致，尝試調节該阻尼孔旋塞望望，是否變化。本輪起升变幅反转一共有 5 个均衡閥，5 个阻尼孔。
Key Points for MHI Deck Crane Operating & Safety Device
(3). 主油泵磨损
主油泵 P1（Hoisting）,P2(Luffing & Slewing) ,油泵磨损图片：常见的磨损面：(1)定子内曲面；(2)配油盘内面；(3)转子高下两侧。
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本轮克令吊主油泵为 DENISON （丹尼逊）三联叶片泵，型号：T7EEC -052-052-025-2L 34-A1 M070,
其中三排数字辞别是 3 个泵的容积排量代码，泵 P1 和 P2 排量固然不异，但因为转子和配油盘结构不同，是以弗成通用，但叶片不异，不错互换。
上图为主油泵内 P1 叶片泵芯解体图。
其中泵高下配油盘磨损严重，导致内漏，无法达到职责压力。
克令吊操作中可通过实测泵出口压力来判断故障原因，平时也可通过泵出口压力的测取来查验泵的性能，以便提前了解，时常之需。泵的压力测试状貌见背面形容。
Key Points for MHI Deck Crane Operating & Safety Device。
（4）. 如下图，在船有出现过由于该开关锁紧螺母松动，上紧后由于位置没对好，后果开关实验位置是在 Grab，导致吊货无法达到预定 SWL。
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四．使用提倡
凭证船上现场操作不雅察，在克令吊启动及操作的进程中能按说明书的操作模范作念到位的较少，故常常导致修复实验使用寿命大大镌汰，畸形是在气温较低的环境下操作，暖机作念不到位，就快速操作，因此提倡：
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1. 将低温保护开关行动温度稳当调高，延迟暖机时辰。
2. 低温启动主油泵时，固然有低温保护，但该保护只收场变幅和回动掸作，起升仍然不错行动，因此有见过操吊东谈主员接收主宰钩头升降使油温快速上涨，这种操作使油泵或油马达潜在损坏的风险加大，因此需严禁这种操作（低温时羁系用主宰钩头升温）。
3. 根 据 装 卸 货 性 质 ， 选 择 相 应 操 作 模 式（Hook/Grab），而不是每次齐摆在 Hook 形态。
4. 依期测试压力保护开关，确保功能精良。
5. 凭证其滑油心绪应时更换延缓齿轮箱滑油（变幅，起升，反转）。
6. 提神滑环碳刷，及启动箱内主构武器触点清洁防备。
Key Points for MHI Deck Crane Operating & Safety Device
五．三联叶片泵压力测试及转机方法：（如图中⑥3个压力表接口，辞别测试Hoisting P1,L&slewingP2,BrakeP3。
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皇冠走地足球准备器具：修复随船压力表及高压快速接洽（2HS socket）, 小行为扳手，4mm 内六角扳手。
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Key Points for MHI Deck Crane Operating & Safety Device。
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本文作家：郑老轨澳门皇冠网址，感谢他的共享！
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