Electric Connection; Troubleshooting - Scheppach ac 500r Originalanleitung

Caution! Never operate the compressor
without air filter.
Before every startup of the machine, check the
functioning of the safety valve. When checking,
the tank must read at nearly maximum pressure.
For checking the valve, set the tank under
pressure and pull the ring on the safety valve to
the outside.
There should be air escaping from the valve.
At releasing the ring from the safety valve, the
escaping air must stop.
Fan belt
Tensioning the fan belt
Attention! Unplug the power supply
Loosen 4 engine-fastening screws
Move the engine until the fan belt can be pushed
through another approx.
1-2 cm.
Retighten the engine-fastening screws.
Maintenance of the electric cable
The cable set may only be repaired or replaced
by a specialized workshop. In case of damage,
contact your dealer.
Failure Possible cause
Motor does not Fault in electric current or mains voltage too low.
start, runs too
Electric cable too long or too thin.
slowly, or gets
Faulty pressure switch.
extremely hot.
Faulty motor.
D GB
Main compressor does not run smoothly, got
stuck.
Main compres- Moving parts damaged by heat due to insufficient
sor does not run lubrication.
smoothly, got
Moving parts damaged or blocked by foreign
stuck.
bodies.
Vibrations or Loose parts.
strange noise.
Foreign body in compressor.
Piston rod with valve seat.
Moving parts too hot.
Insufficient pres- Motor runs too slowly.
sure or drop in
Dirty filter cartridge.
output capacity.
Leakage in safety valve.
Leakage in tube.
Gasket damaged.
Valve seat damaged or covered with carbon layer.
Piston ring or cylinder damaged.
Oil consumption Oil level too high.
too high.
Hole in oil inlet plug (14) blocked.
Piston ring and/or cylinder worn or damaged.
Warnings
For this test goggles must be worn. Do not hold
your face close to the safety valve as there the
air escapes at a high pressure.
Should the safety valve not work properly as
described above, immediately switch off the
compressor and have the safety valve examined
by your dealer.
Do not work with the compressor when the sa-
fety valve does not work properly, as described
above.
General inspection
1 Regularly check all the fixing bolts for their
tight seat.
2 Regularly check, at short intervals, the
electric cable for damages. A damaged
cable must be replaced by an electrician in
order to avoid any danger.

Electric connection

Trouble-shooting
Remedy
Check mains voltage.
Get a new cable from your dealer.
Have it repaired or replaced by your dealer.
Have it repaired or replaced by your dealer.
Have it repaired or defective parts replaced by your dealer.
Crank shaft, bearing, connecting rod, piston rings etc. to be checked by
your dealer and replaced, if needed.
Have checked by your dealer and repaired, if needed.
Have checked by your dealer and repaired, if needed.
Have the gasket enlarged by your dealer.
Have repaired by your dealer or replaced.
Have checked by your dealer and repaired, if needed.
Clean or replace filter cartridge.
Have switch repaired or replaced by your dealer.
Have checked by your dealer and repaired, if needed.
Have checked by your dealer and repaired, if needed.
Have checked by your dealer and repaired, if needed.
Have checked by your dealer and repaired, if needed.
Keep oil at correct level.
Check and clean it.
Have checked by your dealer and repaired, if needed.
14
Cleaning
1 Always keep the air inputs and outputs free
and clean.
2 Regularly remove dust and dirt with a soft
brush or a soft cloth.
3 Regularly grease all moving parts.
4 When the compressor must be cleaned,
wipe it with a soft, moist cloth. A mild
rinsing agent may be used, but no alcohol,
gasoline, or another cleaning agent.
5 Never use any caustic agents for cleaning
plastic parts.
Attention: Water may never come into con-
tact with the compressor.