Bosch TCE 4530 Instrucciones De Réparation página 34

en 34 | TCE 4530 | Adjustments
Normally closed (NC), connected between wire 8A and 8, if pressed opens the contact and blocks forward motion
f the tool; in case the tool makes no forward motion check the contacts of the microswitch and its completeness.
3.11.13 S4 - control lever with 4 unstable positions
Controls the four movements of the tool: UP, DOWN, RIGHT and LEFT.
The tool's forward motion (with the limitations of the microswitch S6A and button S6 AUTO mentioned before) is
caused by the closure of the L+ contact with number 4 exciting the valve Y5N connected between 8 and L -.
The tool's backward motion is caused by contact closure of L+ with number 1 exciting the electrovalve Y5B con-
nected between 1' and L -.
Movement ON, by means of contact closure between L+ and number 2 exciting the electrovalve Y4B connected
between 7and L -.
Movement DOWN by means of contact closure between L+ and number 3 exciting the electrovalve Y4N connected
between 9 and L -.
3.11.14 F1, F2, F3 - protection fuses of the whole high-tension circuit
Allow power supply to the main circuit of the tension transformer and to the motor of the rotation mandrel.
3.11.15 Q3 - thermal-magnetic motor protector for the protection of the motor and of the hydraulic pump
If activated, verify the connections of the motor, its energy absorption and the correct calibration of the device ac-
cording to the characteristics of the motor.
3.11.16 F4 and F5 - protection fuses of the primary circuit of the tension transformer (T 100VA)
If the fuses burn, usually because of a tension surge, power supply will be missing to all the low-tension circuit,
both 24VDC and 24VAC, so nothing will work except for the hydraulic pump.
3.11.17 F6 - protection fuse of the low-tension 24VDC circuit
In case this one blows all the hydraulic motion won't work, all other will remain active like the mandrel rotation.
Check that the connection cable of the pedal box is not damaged and that the cables inside are not interrupted or
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1 695 104 942 2008-10-17 Robert Bosch GmbH