Troubleshooting - Esmach SPI 160 A hybrid Notice D'utilisation Et De Maintenance

Instruction for use and maintenance
Spiral mixer with removable bowl SPI 160-300 A HYBRID
SECTION B – POINT 4

TROUBLESHOOTING

For troubleshooting and ordinary repairs, refer to the table below:
PROBLEM
The bowl has an irregular op-
eration during work.
The bowl wobbles badly during
operation.
The spiral arm slows down dur-
ing mixing.
By pushing the upstroke and
down stroke keys the machine
doesn't run but the hydraulic
unit motor is operating.
There is voltage on the power
board but the panel display
does not come on.
The machine does not perform
some functions (carriage con-
nection-release, head up-
down).
After trolley hooking, the head
downstroke but stop before
completing the stroke (complete
closure).
The oil unit motor stops.
If the trolley is not released af-
ter the ascent of the head.
If pressing start the machine
does not move after the descent
of the head.
44
POSSIBLE CAUSE
Drive belts loose.
Check that the play between
bowl and sliding block is 2-3
mm.
Drive belts loose.
Motor turns in the opposite
direction.
Uncoupled solenoid connector.
Oil lack in the circuit.
No tension to the solenoid con-
nector.
Solenoid failed.
Check the connectors.
Board.
Microswitch SQ4.
Microswitch SQ3.
Microswitch SQ4.
POSSIBLE SOLUTION
Tension the belt correctly.
Adjust the distance between
rollers and replace them if
necessary.
Tension the belt correctly.
Inverse the phases.
Check that all solenoid con-
nectors are correctly con-
nected.
Verify that the oil level on the
circuit tank is at list to ¾.
Replace the connector or its
the solenoid.
Check that the 5-pole green
connector is correctly inserted
in the board.
Check that the 9-pole connec-
tor between board and panel
and base board is correctly
inserted.
This connector is near the
head up/down microswitches.
Turn the machine master
switch to the zero position
(OFF) and after five seconds
re-set to position one (ON).
Check if microswitch SQ4 is
pressed ( machine rear under
head cover).
Micro must be free only when
head is completely downstroke
(closed) and in working
position.
Verify if the microswitch SQ3
working properly.
Verify if the microswitch SQ4
working properly.