Operating instructions

Weekly Maintenance

4.3.1.3 Troubleshooting

Max. Pressure cannot be achieved or hydraulic pressure is

OFF

• Inlet air-pressure too low: Check inlet pressure to be at 6bar

(600kPa) /87psi

• Adjustment of V/P converter is off or the V/P-converter is bad:

Check pneumatic pressure with a gauge (see values in above table)

and call EVG Service

• Stack height too low: Increase stack height and try again

• Hydraulic system contains air: Fill/bleed the system (Filing /

Bleeding the hydraulic system)

Max. Pressure cannot be kept

• When the hydraulic pressure get lost after ~8min: increase stack

height and try again

• The maximal hydraulic pressure can be achieved but not kept:

increase stack height and try again.

• Bleed the hydraulic system and try again.

• If this does not solve the problem call EVG-service.

“Hydraulic Fail” Error message in the software

• Check filling-level in the hydraulic-fluid reservoir.

• Check “sensitivity” pot on the filling level sensor amplifier (call EVG

service)

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