24
Operating Instructions
V Series
YILMAZ REDÜKTÖR
Troubleshooting Guide
ID
Problem
Observation
Remedy
006
Gearbox Does
Not Work in Low
speeds /
Frequencies.
You are using frequency
inverter.
For very low speeds the frequency inverters frequency is lower-
ing down. For very low frequencies the inverter parameter and
motor parameter must be optimise. Also for low speeds the
efficiency of the gearbox may vary too much. Specially for worm-
gearboxes. The recommended frequency range is 20-70 Hz
for worm-gearboxes and 10-70 Hz for Helical Gear Boxes. Use
Higher motor power and Frequency inverter or change ratio of
gearbox to work inside the recommended range.
007
Gearbox Does Not
Start Mornings or
After Long Time
Stop.
Ambient Temperature is
below +5 Celsius
The oil is not in accordance with your working conditions. Change
to lower viscosity oils. Observe this manual for using the correct
oil. Working in higher ambient temperatures is an other solution if
possible. If still same problem you need higher motor power.
008
Gearbox is Heating
Up too Much
You are using Worm
Gear Box and ambient
temperature is lower
than +40 Celsius
Measure the surface temp. using a temperature measuring
device under full load. If the temp is under +80 Celsius this will
make no harm to the gearbox and is normal. All ATEX conform-
ing gearboxes and standard worm gearboxes are designed to
work under max. +120 Celsius. If higher than +120 Celsius and
using ATEX conforming gear box immediately stop the system
and contact YILMAZ REDUKTOR. Go to ID 100. If not ATEX
confirming check the oil type and oil quantity/level according your
mounting position and check the nameplate mounting position. If
nameplate mounting position does not fit the actual position go to
ID 100.
009
Gearbox is Heating
Up too Much
You are using Helical
Gear Box. Ambient temp
is lower than +40 Cel-
sius
Measure the surface temp. using a temperature measuring
device under full load. If the temp is under +80 Celsius this will
make no harm to the gearbox and is normal. All ATEX conform-
ing gearboxes are designed to work under max. +120 Celsius. If
higher than +120 Celsius and using ATEX conforming gear box
immediately stop the system and contact YILMAZ REDUKTOR.
If not ATEX gearbox the gearbox is designed to work under max.
+80 Celsius. If higher than +80 Celsius check the oil type and oil
quantity/level according your mounting position and check the
nameplate mounting position. If nameplate mounting position
does not fit the actual position go to ID 100
010
Gearbox is Heating
Up too Much
Ambient Temp is over
+40 Celsius
Standard Gearboxes are designed to work under +40 Celsius.
ambient temperature. If ambient temp is higher than +40 Celsius
special solutions/gearboxes are required. Please contact YILMAZ
011
Gearbox is noisy
Noise is regular
continuous
Check Your moving parts for noise. Disassemble the gearbox
and run without load. If you still hear the noise motor bearings or
gearbox bearings are defect. Change bearings. Go to ID 100
012
Gearbox is noisy
Noise is random
Check Your moving parts for noise. Disassemble the gearbox
and run without load. If you hear still the noise the oil may has
some particles inside. Change the oil and look for small particles.
If metal particles are found the gearbox may have some damage.
Goto ID 100
