Güde 300/10/50 DG 14 TLG Mode D'emploi page 14

Observe strictly the rules for disposal of waste
oil and dispose of it properly in a waste oil collection
center.
Unscrew the drain screw is now firmly back on and
fill oil up to the mark on the dipstick
In winter we recommend a lubricity oils to start
during the cold season to help!
Air-pressure switch:
The compressor is equipped with an automatic air-
pressure switch that will switch the compressor off after
reaching the upper limit of the operating pressure and
switch it on again when air is needed. Starting pressure of
8 bar, max. pressure of 10 bar.
Inspections and Maintenance
Pull the connector plug out of socket before each work on
the machine. If you are not going to use the device for a
longer period of time we recommend dropping a few oil
drops at the place of air filter insertion so that walls of
cylinders were lubricated at next compressor switching
on.

Use a damp cloth for cleaning of plastic parts. Do
not use cleaners, solvents or sharp objects.

Clean the air holes and mobile parts with a soft
brush off the settled dust after each use.

Regularly paint all metal parts with oil.
Fault
A
Compressor does not start
after switching on
B
Compressor shortly starts or
buzzes at the reach of the
switch-on pressure and then
switches off automatically
C
Compressor runs without stop
D
In operation the relief valve
under the pressure switch
releases the pressurized air
E
After switch-off pressure is
reached the relief valve under
the pressure switch releases the
pressurized air until the switch-
on pressure is reached
Cause
Pressure in the air receiver is higher than switch-
on pressure
Faulty feeding
Circuit breaker of the motor interrupts the power
feed
Faulty pressure switch
Electric cable is longer than permitted or is of too
small cross-section
Suction filter is contaminated heavily
Pneumatic tool has too high air consumption
Leak at the compressor
Too much condensing water in air receiver
Leaky pneumatic piping
Mud-discharge valve is open or missing
Leaky relief valve
Insert of the non-return valve is leaky or
faulty
After each use
clean the air holes and mobile parts off dust.
Regularly
paint metal parts with oil (universal oil)
check whether all screws are tightened.
Regularly (once a month at least) release the condensed fluid
from the air jet; failing to observe this regulation may lead to
guarantee for rusting through expiry – apart from that, the
compressor is maintenance-free.
(The condensed fluid may be brown-coloured due to surface layer
from the air jet)
1. Pull the connector plug out of socket!
At low pressure in the air jet open the bleeder (9) (max. of 1
2.
bar) and completely empty the condensed fluid (use a
suitable container)
3. Close the valve.

Air filter
Sometimes it is necessary to clean the filter bed. For that purpose
remove the air filter cover screw and remove the foam filter. Wash
it in warm soap water solution. Let the foam filter dry and reinsert
it to its place. Now assemble the air filter cover again.
Fuse against overheating: (depending on model)
If the compressor is loaded by a technical defect or possibly also
by continuing operation, the power feed will be automatically
interrupted by a thermo-switch. If such situation occurs it is
advisable to disconnect the compressor from the mains and let it
cooled down for approx. 5 minutes. If the compressor does not
start after certain period of operation, let it cooled down for
additional 3 minutes.
Remedy
Release the pressure from the air receiver so
that the pressure switch switches automatically
Have the power feeding checked by an
authorized person
Have the pressure switch replaced by an
authorized person
Check the length and cross-section of
the electric cable
Clean or replace the suction filter
Check the air consumption of the pneumatic
tool; contact authorized reseller
Locate the leak, notify Güde service
Drain the condensing water
Check the pneumatic piping, seal the leak
Close or insert it
Clean or replace the relief valve
Clean or replace the insert of the non-return
valve