tập đoàn sản xuất máy xây dựng Kobelco đã giới thiệu mẫu xe đào – SK210. Với loại xe đào mới này, lực đào, hiệu suất máy, điều kiện làm việc cho người điều khiển cũng như độ tin cậy của m
Trang 115, TROUBLE DIAGNOSIS
SK20(.cW
SK210(c;W
® Troubleshooting (Hydraulic equipment)
Oil pressure Pump Control valve Swing motor} Travel motor Cylinder [Other valvel Proportional valve block Relief valve
® SVi/SV2SV3ISV4) A} BY C} CB Main contral valve Travel | Swing
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Š lễ NN #|ElelS|s|ZlZ|SlSlšI|ZlSISIálálsišIsl5lxi2|IE =| leis] S| Si 2) Slals] 8 "l°ly a 5/0/35] 8] 8) | s/ BIE] BIE
° Trouble “S /o} 8! 8) 5/51) 8) 2] §| €] 8) S| | 3/4) ele) x) S] <8) 3] 2] S| =| Sle] §) €| S| Sl a/sl Sl 8/8] ee Sle Sle sleleicigiziz
ti <EIEBERREIRIEIREIEIEREEEEEIEIEIHRIEIEIEIEIEIEIFRIEIEIEIEIEBIRHIEIIEIEIEEHBEIEIEIEIERIEIKIEEIE
( No operation is possible oO ©:©:OO ot : eo ph;
_WBEjgiE rey samaa— [G[G O.O.O
= [Bucket cigging and dump OjO:0 0
ø| = | Boom Lower |O|OO O
BUG v Lower OlO: : [0
Ễ Arm in and out OlO:0: :O
= tại Lower O O'O: :OI
5 ụ ey Boom Raise oO O10) Họ
B (7}| Travel power is low Oo O10) iO
5 (0) | Swing motion does not work " i ¬
® (i) | Swing speed is low GOlO:G:
A(910L2MS AO1)002MS
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A(91016NS A(91002S
SK200(LcM
SK210(cW
® HYDRAULIC PRESSURE MEASUREMENT BY SERVICE DIAGNOSIS
(1) Main circuit pressure (2) Secondary pilot pressure (3) Solenoid primary pressure (4) Solenoid proportional valve secondary
Travel operation [1]~[4))
Full lever, at neutral No load, at neutral Full lever, at neutral No load, at neutral Operation is not working In operation Full lever, at neutral No load, at neutral
PRESS SENSOR Main pump P1, P2 PRESS SENSOR SOL VALVE Swing P/B PROPO-VALVE P1 bypass cut
C-1 PUMP P1 B-1 BOOM RAISE 0.5V Ok F-2 SWING-BRAKE Swing & arm digging | |D-1 P1 BYPASS
33V 30k 0./V 2 45V 30k —— COMP ON |OFF nication sox| | COMP 847mA 25k} 350mA 6k
C-1 PUMP P2 B-2 BOOM LOWER 05V 0k MEAS ON OFF indication MEAS, B42mMA 25k} 345mA 6k
343V 350k 0/V 20k 49V 30k —— RELEASE SW OFF {ON/OFF indication
B-17 P2 OPT B-4 ARM IN 05V Ok MEAS OFF | ON indication MEAS 642mMA 26k} 345mA 6k
PRESS SENSOR P1,P2 PRESS SENSOR SOL VALVE Boost pressure select | | PROPO-VALVE Travel straight
B-17 P2 NEGA-CON B-6 BUCKET DUMP 05V 0k MEAS OFF {ON indication MEAS 842mA 25k; 345mA 6k
B-10 TRAVEL (L) 05V 0k NOTE ; + OPERATION MEAS 3g96mA 9k T45mMA 3 4.5V 30k ——— No.20 ARM OUT or ARM IN RELIEF OPERATION |POWER SHIFT 0mA
No.21 BOOM RAISE RELIEF OPERATION No 25
LH control lever RH control lever No.22 ARM IN RELIEF OPERATION PROPO-VALVE P2 pump
© | Swing left @D | Bucket digging No.23 ARM IN OPERATION LEVER TURNED E-2 P2 PUMP
LH travel lever RH travel! lever © | Swing right @ | Bucket dump TO FULL (At 200mA ARM IN RELIEF) | COMP 400mA 9k 750mA 30k
Travel left forward | [2] | Travel right forward Arm out @ | Boom lower No.25 DURING ARM IN OPERATION POWER SHIFT OmA
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SK20(:cW
SK210cW
® TROUBLESHOOTING <MECHATRO CONTROL>
SK200(L0)W SK210(L0W
Hydraulic
Other
Cylinder
Motor
Control valve
E
S
aa)
ee
P2
|
Electric
|
4
|
3
|
¿
|
1
D
ẻ
|
B
|
A
sunssaud
SE | SE j SE | PSV | PSV | PSV | PSV | SV | SV | SV | SV | PSV | PSV
22 | 23 }1~10
4osuas sunssaud
Actuator
Operating condition
Boom raising full lever operation
Boom lowering operation
Arm out inching operation
Arm out full lever operation
Arm in inching operation
Arm in full lever operation
Heavy duty arm in full lever operation
Travel LH/RH operation (1st speed) Ọ
Travel LH/RH operation (2nd speed)
Trang 4SK200(cW
SK210(Lc›W
®OUTLINE OF TROUBLESHOOT <MECHATRO SYSTEM›
° Bucket digging 2 MAX MAX
Boom raise ỳ (500psi) | (340psi) 45V 45V pressure pressure | 350mA B47mA 647MA B47mA 200mA
= | ormore | or more
Swing left S
Swing right
Arm in
TRAVEL 6 or less or less
Forward
A(91)012S AO1)002MS