8
LOCATING MALFUNCTIONS
8.1 PETROL ENGINE
PROBLEM
The motor doesn't work................................ 1. Check the gas level
The motor works slowly............................... 1.Poker or inner core is damaged
8.2 ELECTRIC MOTOR
PROBLEM
The motor doesn't work................................ 1. Check the supply
The motor is running,
but overheating............................................. 1. Air supply and outlet blocked, clean
Motor running slowly and
Overheating................................................... 1. Voltage too low
en
Motor noisy.................................................... 1. Coupling / clutch default
8.3 FLEXIBLE SHAFT AND POKERS
The motor works overload and
overheats
The poker doesn't vibrate
PETROL ENGINE-ELECTRIC MOTOR-FLEXIBLE SHAFT AND POKERS
12
VGR6, VGH5, VGE5, VYD, VHD, VLD - VPA, VPAME - TNR - ANR
PROBLEM
1. Excess or lack of grease in the flexible shaft
2. The bearing of the poker is damaged
3. The movement of the poker is limited or stuck
4. Excessive wearing of the flexible shaft due to extreme curves
1. The shaft of the transmission is broken
2. Water or dust got into the poker tip
3. The bearing is blocked due to the grease of the flexible shaft came into the bearing.
4. The bearing is damaged due to the poker has been working out of the concrete for
a long time and that has caused overheating.
5. The bearing is damaged due to the poker was hardly beaten in the tube
6. The pendulum or the cone are excessively worn
CAUSE / SOLUTION
2. Check the gas admission key is open
3. Check the choke position
CAUSE / SOLUTION
2. Plug defect
3. Switch defect
2. Voltage supply defect
2. Mechanical problem in shaft or poker
3. Extension cable, voltage drop
2. Bearing smashed
3. Windings damaged
3. Housing not properly secured
CAUSE