2.4 机油不足 不按规定检查机油量或在工作过程因机油管松动造成机油外漏，均可造成润滑油膜中断活塞与缸套表面失油，造成严重磨损发生拉缸、烧连杆轴承等严重事故。造成活塞与缸套表面机油供油不足的原因还有润滑油路堵塞、活塞环与活塞边缘刮油能力太强，把润滑油刮掉造成润滑油不足等。2.5 机油变质 发动机润滑油变质造成活塞与缸套之间的润滑条件恶化，磨损加快引起拉缸，造成润滑油变质的主要原因有冷却水、燃油因泄漏进入下曲轴箱，尘埃过多混入下曲轴箱等2.6 活塞销与活塞装配过紧 活塞销与活塞装配过紧，使活塞产生变形，形成反椭圆，改变了正常的标准间隙，形成局部间隙过小破坏油膜，引起干磨擦过热拉缸。

PSA-110-124
PSA-110-112 Power Suppy
NA110P401
B-401-E-110-701 BOARD
CAB-128-2

CAB-128-2 KEITHLEY NEW! NEW

KPCI-PIO32IOA, Optically Isolated, Digital I/O Board
193-ECPM3 (193ECPM3) NIB！
193-ECPM2 193ECPM2 Overload Relay Din Rail Panel Adapter NEW
193-ECPM1 (193ECPM1) NIB！
193-EA2DB Overload Relays with 193-EPM1 Panel Adapters

193-EC5EE 193EC5EE
193-BPM3 193-A3H3 X592P-A2HC Overload Rel

193-BC3 NSFP 193BC3
W193RE1C3-24G RELAY MAGNECRAFT W193RE1C3

193-ED1DB Overload Relay E1 P Manual Reset 3PH Range 3.2-16

193-EC1EE SER. B SOLID STATE OVERLOAD RELAY INTEGRATED I/O 2 INPUT
193-EC2EE NSPP 193EC2EE
193-EC1FF Overload Relay

193EC1AB NEW ALLEN BRADLEY 193 EC1AB FREE SHIPPING

193EC1BD NEW ALLEN BRADLEY 193 EC1BD FREE SHIPPING

193EC1AD NEW ALLEN BRADLEY 193 EC1AD FREE SHIPPING

193-EA1EC NSPP 193EA1EC

KPS-600/20-ESC, Art.-Nr. 00-115-115 , KRC2 / VKRC2
KPS-600/20-REL Power Supply

ABB 621ESC2UUOAG8111 600T PRESSURE TRANSMITTER HART 20MA 25496 10.5-55VDC 41829
549-022PP 549022
GYR 549-209
GYR 549-623PP 549623

GYR 549-629PP 549629

GYR 549-213PP 549213
GYR 549-615PP 549615

GYR 549-613 NSFP 549613

GYR 549-009PP 549009

GYR 549-215PP 549215
6SN1118-0DG21-0AA1 6SN11180DG210AA0ed working
EDS-408A-MM-SC etherDevice Switch Turbo Ring
EDS-305-M-SC 24V 10/100MMWORKING ROUTER ETHE SWITCH

EDS-40 -MM-ST-T Managed Intrial Ethe Switch V 1.1
EDS-308-MM-SC Ethe Switch 8 Port Unmanaged

EDS-408A (EDS408A) NIB!
EDS-508A-MM-SC (EDS508AMMSC) NIB !
EDS-20 -S-SC (EDS20 SSC) NIB!
6ES5946-3UA21
6ES5946-3UA23 * 6ES5 946-3UA23 * 6ES5 946 3UA23
6ES5946-3UA11, 6ES5 946-3UA11, New in original Siemens Box
6ES5946-3UA22

6ES5947-3UA21 6ES5-947-3UA21 V.01
6ES5947-3UR11 E-Stand : 03
140-CPU-434-12A NIB
140-CPU-534-14A
140-CPU-434-12A
140CPU53414A

A02B-0281-C330
A02B-0281-C062

A02B-0281-C125/TBS
A02B-0281-C327

A02B-0281-D502 A02B0281D502

A16B-1310-0281 /02A CIRCUIT BOARD

A02B-0281-J146
B082C-007B 
3HAB8101-6 Atlas Copco Servo Drive Unit SC4 Robot DSQC346B

3HAB8101-2 Atlas Copco Servo Drive Unit Robot InMotion DSQC345B

DSQC249B Servo Amplifier Board

3HAA3563-AHA DSQC249B

3HAB8101-6/12A DSQC346B
3HAB-8797-1/2B NEW
3HAB8801-1/2B SERVO AMPLIFIER NEW IN THE BAG, NO Box.

AMETEK 80308SE RECONDITIONED DISPLAY CIRCUIT BOARD (FS0)

Ametek 80485SE PCB 02 Sensor Card 5196YE-103

AMETEK 80168SEPP 80168SE

AMETEK 80133SEPP 80133SE

AMETEK 80166SEPP 80166SE

AMETEK 71842SE NSPP 71842SE

AMETEK 80394SEPP 80394SE

AMETEK 80285SEPP 80285SE

AMETEK 80393SE NSPP 80393SE





FOXBORO P0972AJPP P0972AJ

2.7 修理装配错误 修理装配错误时漏装活塞销卡环或未完全装入槽内，发动机在工作时活塞销窜出刮伤缸套造成拉缸。安装时清洁工作差把金属屑或硬物碎粒带进缸里也会引起拉缸。另外，活塞环装错、装反、漏装均可造成拉缸。活塞环有油环和气坏之分，油环主要是用来刮油，改善缸套润滑条件。气环主要是保证活塞与缸套的密封。根据工作条件以及承受压力的不同，各道气环在材料选用和结构设计方面有所不同，如把活塞环装错、装反或漏装均可造成密封不严或是没有刮油作用，使缸套内表面润滑条件恶化造成缺油引起拉缸。
FOXBORO P0972QMPP P0972QM

Foxboro P0972QM-0C P0972QM0C P0972QM I/A Serieswork Hab Repaired
U-01DM Datamunication Module Host Link

C200H-LK202 HOST LINKMUNICATION MODULE

 C200H-LK202-V1 HOST LINKMUNICATION MODULE

C200H-LK201-V1 HOST LINK UNITMUNICATION MODUL

H4--F 405 FIBER OPTIC ETHEMUNICATIONS
GFC800044-02

C800046-01

Sensor 916-4104
SENSOR 916-4128

Perceptron 916-4128 Digital Contour Sensor Camera

PERCEPTRON 916-4018 DIGITAL CONTOUR SENSOR REFURBED

C0400-X0000-Y0062-Z0129 Digital Contour Sensor

C0800-X0000-Y0054-Z0110 Digital Contour Sensor

C0600-X0000-Y0060-Z0123 Digital Contour Sensor

MANN-FILTER WK724