36
ROSSI
GEARMOTORS
UT.D 123 rev. 3
15. Table of inspections to be made after checks listed on table 14
1)
Code
Object
Checks in absence of oil
Checks in presence of oil
Ref.
resistance thermometer resistance thermometer
* The installation responsible has to verify with the right assiduity that safety circuits using sensors are running properly.
1) The control intervals stated in the table are the maximum values; for heavy duty or very severe ambient conditions it may be necessary to reduce these intervals.
A
Oil leaks
(oil seals, joining surfaces,
every six months for category 3 GD
every three months
–
plugs, etc.)
each month for category 2 GD
B
External surface temperature
every six months for category 3 GD
every three months
7.1
each month for category 2 GD
C
Noise levels
every six months for category 3 GD
every three months
8.4
each month for category 2 GD
D
Vibrations
every six months for category 3 GD
every three months
8.4
each month for category 2 GD
E
Gear reducer bearings
every six months
–
(unit pre-assembled with vibration
monitoring devices*)
F
Cooling coil
every two years
8.2
(deposits of limestone)
G
Functionality of oil/air cooling unit
every six months for category 3 GD
every three months
specific
each month for category 2 GD
docum.
H
Functionality of oil/water
every six months for category 3 GD
every three months
specific
cooling unit
each month for category 2 GD
docum.
I
Resistance thermometers*
every six months
–
J
Oil level control switch*
every six months
–
K
Oil thermostats
every six months
–
L
Cleanliness of external surfaces
when necessary, also every day (dust thickness
0,2 mm)
–
M Cooling air passage
when necessary, also every day
–
N
Fitting bolts tightening
at any oil change and when excessive vibration is detected
8.1
O
Motor absorption
every six months for category 3 GD
every three months
–
each month for category 2 GD
P
Electrical bonding
every six months for category 3 GD
every three months
–
every three months for category 2 GD
Q
Cleanliness of filler plug
when necessary, at least every six months
8.5
with filter and valve
R
Labyrinth seals and greaser
let in grease with pressure at least each month
specific
docum.
S
Name plates
verify readability once a year
–
T
Gear reducer bearings with
with uniform load and pollution free environment, lubrication is «for life»,
–
separate lubrication, backstop
otherwise replace grease:
mounted on motor
once a year for running
12 h/d,
every six months for running 12 ÷ 24h/d
U
Presence of water in oil
once a year
–
V
Restoration a/o preservation
when necessary to keep painting coat integral and retouching rusty spots,
5.1
of surface protection
if any
W Oil seal replacement
1 600 ÷ 12 500 h and on gear reducer revision
8.3
X
Oil change
see table 6.2
6.2
Y
Cleanliness of oil filter
when detected by clogging device or there is an increase in oil pressure
–
Z
Motor bearings
see motor’s specific documentation
–
