RUTHMANN 27409, Operating And Maintenance Instructions Manual

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9 Maintenance
BA.GB.12-27409-05-07-FTA-jr
RUTHMANN-Steiger
®
TB270
9-55
9.4.5.18 Electric system

Check fastenings of appliances and constructional components for firm
hold.
Attention!
The connecting plugs of the printed circuit boards may
only be plugged-in or -off, if the operating voltage is
switched-off (voltage-free). The operating voltage may
only be switched-on, if all plugs of the printed circuit
board are either removed or inserted.
Never connect voltage from outside onto the exits.

Check fuses for firm hold and if necessary for proper function.

Check switch box for tightness and accumulation of condensation.

Function check of Emergency Cut-off push button and safety devices.
Actuation of the Emergency Cut-off push button must consequently stop
the electrical driving of Steiger-movements.

Check

plug connections,

pressure and luminous push button keys,

joystick and rubber sleeves,

limit switches,

approach switches,

pressure sensor,

swivelling angle sensor,

inclination sensor,

cable length transducer,

solenoid valve plug
for cleanness, humidity and mechanical and electrical function ability.

Remove dirt, dust deposits, ice / snow etc. from the limit switches and
approach switches.

Clean operating devices and appliances if necessary.
Attention!
In order to avoid damage to operating elements, sole-
noid valves, switch boxes, limit switches, approach
switches, batteries, etc. do also from outside not use a