33
7- Maintenance and Inspections
Under normal ambient and working conditions the gear unit should be checked
according the following intervals. (For definition of normal working conditions refer to
the product catalogue : “Selecting Gearbox” section) ;
For normal ambient conditions 70 degrees celsius oil bath temp. should be taken
as reference
* For our T series gearboxes mineral oil is used unless it is differently ordered. For oil
type and quantities refer to the following tables.
Item to Check /
Replace
Every 3000
Working Hours or
Every 6 Months
Every 4000
Working Hours
Every 10000
Working Hours or
Every 3 Years
Every 25000
Working Hours
Check for Oil Leakage
x
Check for Oil Level
x
Check for Oil Leakage
from Seals
x
Check Bearing’s Noise
x (Change if
Necessary)
Change Mineral Oil
x (See Below for
Details)
Change Synthetic -
PAO Oil
x (See Below for
Details)
Change Sealing
x
Change Bearing
Grease
x
Change Bearings
x
Check for Noise
Changes
x
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
70 80 90 100 110 120 130 140 150 160
O
il Cha
nge
Int
er
va
ls
[Hour
]
Oil Bath Temperature (Celcius)
Mineral
Synthetic PAO
Synthetic PG
Operating Instructions
T Series
YILMAZ REDÜKTÖR
Inspections