如果起升制動裝置失靈

位置 名稱
1與2 制動裝置
3與4 制動釋放桿

制動裝置失靈
起升制動裝置為彈簧加載/電動-液壓釋放型。當(dāng)電源出于任何原因被切斷時，起升制動裝置便被激活。發(fā)動機停機、電氣故障、起升制動裝置內(nèi)部液壓回路泄露等可引起即時最大制動。
發(fā)動機故障或造成連續(xù)斷電的其他原因可導(dǎo)致集裝箱被滯留于起升位置，地面以上數(shù)米。萬一發(fā)生這種情況：

如果發(fā)動機失靈，
則用起升制動釋放桿（3）與（4），將制動釋放桿與彈簧拉起（如圖所示），以減少制動塊與制動盤之間的制動力。
 

頁碼 篇 日期 名稱 
84/101 EH11-0175 03-11-13 操作手冊 

首先拉起制動釋放桿（3），然后通過將制動釋放桿（3）拉到終點，打開制動裝置（1）。在這之后，使用制動釋放桿（4）。當(dāng)制動釋放桿被拉到一定位置，制動裝置（2）開始滑動，載荷開始下降。在使用手動制動釋放之前，請確定載荷下沒有任何物品。

如果發(fā)動機工作正常，

上述方法同樣適用，除非經(jīng)驗豐富的起重機駕駛員可以從司機室通過起升“保持”提起載荷。

 

  立即尋找檢修人員，并通知地面上的所有人員小心頭頂上的危險載荷！

 

  在位于高處的載荷被下降之前，禁止實施所有其他檢修工作。

 

  在對被卡住的載荷實施下降嘗試過程中，起重機區(qū)域必須禁止所有未經(jīng)培訓(xùn)的人員進入，以避免發(fā)生重大事故與/或?qū)ζ鹬貦C與其他財產(chǎn)造成嚴(yán)重?fù)p壞。

 

  名稱 日期 篇 頁碼
 操作手冊 03-11-12 EH11-0174 85/101

 

11.7.1. 智能減速

可編程序控制器（PLC）控制的智能減速功能可使小車與起升裝置在活動范圍終點平穩(wěn)運行，防止與位于活動范圍終端的車檔發(fā)生嚴(yán)重碰撞。

如何實現(xiàn)

1） 起升裝置

起升裝置的位置由位于起升卷筒軸上的絕對值編碼器檢測，譯碼器向可編程序控制器（PLC）發(fā)出有關(guān)確切位置的信息。由于起升長度的變化，起升裝置必須在起升超行程位置上同步。建議該程序一個月一次或按更長的間隔時間實施。

智能減速功能遵循最佳減速曲線，這使操作員在工作中可以保持最大工作效率。

2） 小車

小車的位置由轉(zhuǎn)速計檢測，轉(zhuǎn)速計向可編程序控制器（PLC）發(fā)出有關(guān)確切位置的脈沖信息�？删幊绦蚩刂破鳎≒LC）位置在同步點確認(rèn)，如果可編程序控制器（PLC）與實際位置的距離超過設(shè)置的誤差，將出現(xiàn)“未同步報警”，且小車速度被減至最大速度的25%。每次當(dāng)小車后退經(jīng)過同步點時，便檢查小車位置。

智能減速功能遵循最佳減速曲線，這使操作員在工作中可以保持最大工作效率。
 

頁碼 篇 日期 名稱 
86/101 EH11-0046 00-07-31 操作手冊 

 

11.7.2. 生物工程學(xué)應(yīng)用

1． 當(dāng)您就座時，為自己調(diào)節(jié)座椅。

 

2． 坐在座椅靠后部分。保持背部挺直，并仰靠在座椅背上。您可以輕松地呼吸，并放松上身。

3． 每小時起立、行走并舒展身體至少五 – 七分鐘。

 

 

圖18. 慢慢地彎下身子，雙手放在腿的兩側(cè)。深呼吸，然后讓背部與腿拉伸。
 

  名稱 日期 篇 頁碼
 操作手冊 00-07-31 EH11-0046 87/101

 

圖19. 腳尖站立，并盡可能向上攀伸。

 

圖20. 單手撐墻，身體后靠并旋轉(zhuǎn)。體會并享受胳膊與胸部的舒展。

11.7.4.7. In case of hoist brake jamming
A
3
4
1
2
3
UP
A
(OPTION)
(OPTION)
Pos Description
1 and 2 Brake
3 and 4 Brake release lever
Brake jamming
Hoist brake is of spring loaded/electro--hydraulic released type, which is activated

when
electric--power is cut off for any reason. Engines shut--down, electronic failure,

leak in hoist
brake’s inner hydraulic circuit etc. are causes for immediate maximum breaking.
Engines break down or other cause of continuous loss of electric power, may result in

leaving
container to lifting position, several meters above the ground. In case of such

situation:
If engine is not functioning
Use hoist brake releasing levers (3) and (4) to pull the brake lever and--spring up

(as shown
in the picture), thus decreasing braking force between brake pad and brake disc. First

lift the
Page Group Date Description
82/99 EH11- -0175 03- -11- -13 Operator’s manual
lever (3) up and then open brake (1) by pulling the brake lever (3) over dead point.

After this
use brake lever 4. When lever 4 is pulled enough, brake 2 starts to slide and load

also starts
to lower. Make sure there is nothingunderthe loadbefore usingmanual break releasing!
If engine is functioning
The abovementioned method apply here as well, except that well experienced driver of

the
crane can ”hold” the load by hoisting it from the cabin.
CALL FOR MAINTENANCE IMMEDIATELY AND INFORM ALL GROUND
PERSONNEL ABOUT DANGEROUS OVERHEAD LOAD!
ALL OTHER REPAIRS ARE PROHIBITED UNTIL OVERHEAD LOAD HAS
BEEN LOWERED
DURING THE LOWERING ATTEMPTS OF JAMMED LOAD, CRANE AREA
MUST BE GUARDED FROM ALL UNTRAINED PERSONS, TO PREVENT FA-
TAL ACCIDENTS AND/OR SERIOUS DAMAGE TO THE CRANE AND OTHER
PROPERTY!
Description Date Group Page
Operator’s manual 03- -11- -12 EH11- -0174 83/99
11.7.5. Smart slowdown
PLC--controlled smart slowdown --function enablessmooth movementof bothtrolleyandhoist
at the end of movement range, preventing heavy collisions to the stoppers at the end

of the
movement range.
How does it work
1) Hoist
Position of hoist isdetected byabsolute encoder, located at the axle of hoist drum,

whichgives
the actual position to the PLC. Due to variation in rope length, the hoist must be

syncronized
on hoist overtravel position. This procedure is recommended to be done once per month

or at
longer intervals.
Smart slowdown function is following optimum slowdown curve, this allows operator to

main-
tain maximum working efficiency during work.
2) Trolley
Position of trolley is detected by tachometer which gives pulses to the PLC for

position count-
ing.PLCpositionisverifiedatsynchronisationpoint,ifdifferencebetweenPLCandactualposi-
tion exceed the set tolerances, there will be “out of sync. alarm”, and trolley

speed is reduced
to 25 % of max.speed. Trolley position is checked every time when trolley reverses

through
sync. point.
Smart slowdown function is following optimum slowdown curve, this allows operator to

main-
tain maximum working efficiency during work.
Page Group Date Description
84/99 EH11- -0046 00- -07- -31 Operator’s manual
11.7.6. Ergonomics for a driver
1. When you are sitting, adjust the seat for yourself.
2. Put your buttocs back on the seat. Keep your back straight and lean to the back of
the seat. You can breathe easily and relax the upper body.
3. Stand up, walk and strech at least five -- seven minutes an hour.
Figure 18. Bend slowly down, round by hands your legs. Breathe deep, and let the
back and legs lenghten.
Description Date Group Page
Operator’s manual 00- -07- -31 EH11- -0046 85/99
Figure 19. Stand tiptoe and strech out so high you can
Figure 20. Lean to a wall by one hand, turn yourself off. Feel and enjoy the strech in
the arm and chest.

2014.11.26