IN-ECO LR 060-H06, Руководство по эксплуатации, Страница: 29 / 40

29
Repairs / troubleshooting
IN-ECO spol. s r.o.
Fault Cause Remedy Carried out by
Unit does not
generate
vacuum.
Unit too small. Use larger unit. Operator
Operating-liquid
flow too low.
Increase operating-liquid flow rate to up to 2x the
nominal flow rate. See Chapter 8.2, „Self-priming operation“,
Pg. 20 or Chapter 8.3, „Operation with operating-liquid
feed“, Pg. 21.
Operator
Operating liquid
too warm (nominal
temperature:
15°C [59 °F]).
Cool or increase operating-liquid flow, See Chapter 8.2, „Self-
-priming operation“, Pg. 20 or 8.3, „Operation with operating-
-liquid feed“, Pg. 21.
Operator
Erosion. Inspect impeller. To do so, proceed as follows:
. Shut unit down.
. Drain the pump-motor unit as described in
Chapter 10.1, „Draining“, Pg. 24.
. Unscrew the housing with a 36 mm [3/8“] wrench (in directi-
on of arrow shown on housing) (see Fig. 15, Pg. 27).
. Remove the housing.
. Examine the impeller for erosion.
. Have the impeller replaced by Service if necessary
. Screw on the housing again (opposite
direction of arrow shown on housing) and tighten with a tigh-
tening torque of 50 Nm [36.9 ft lbs].
. When commissioning the pump-motor unit, proceed as
described in Chapter 8, „Commissioning“, Pg. 19.
Operator
Replace affected components. Service
Slight leak in the
system.
Seal leak in the system. Operator
Mechanical seal
leaky.
Replace mechanical seal. Service
Abnormal
screeching
noise.
Cavitation of vacuum
pump/compressor
Connect cavitation-protection hose of liquid
separator (see Chapter 13.5, „Cavitation protection“, Pg. 34)
or clean cavitation-protection equipment.
Operator
Operating-liquid
flow rate too high.
Check operating-liquid flow rate and reduce if
necessary. See Chapter 8.3, „Operation with
operating-liquid feed“, Pg. 21.
Operator
Unit leaky. Seals defective. Check seals. Service