S.C.R. WAGON WORK SHOP, GUNTUPALLI

                        MOUNTING AND DE-MOUNTING MACHINE FOR CTRB

Trouble shooting of CTRB Mounting/Demounting Machine 100 / 70 Ton:

ELECTRICAL

SNSYMPTOMSProbable Cause of FailureRemedial Action
01Machine is not switching on1. No supply from mains
2. Defective fuses/ MCB
3. Faulty cable
4. Defective ON/OFF buttons in DOL starter
5. Overload relay malfunctioning
6. Contact kits of starter get damaged
7. Motor not rotating
1. Check and ensure supply from mains.
2. Check and replace fuses/MCB
3. Replace the cable
4. Replace ON / OFF buttons
5. If overload relay tripped reset it and if found defective replace it.
6. Clean the surface of the contacts with emery paper and if found defective replace it
7. Check the terminals connections of the motor. If problem persists replace the motor.
02Machine found in working condition but, piston is not moving.1. Two way Solenoid valve is defective. a) Check supply at solenoid valve caps.
2. Any of the push buttons in pendant defective. a) Check proper working of push buttons.
b) Check the terminals at push buttons (pendant). Tighten properly.
c) If cable is found defective replace it.
03If sufficient pressure is not building upMotor not rotating at desired RPM. a) Check the supply voltage
b) Check the winding of the motor.
c) Check the bearing of the motor.