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6.4.2 FILLING OIL CALIBRATION OF VERTICALLY MOUNTED COUPLINGS
The standard filling level for ROTOMEC couplings without delay chamber is 45
angle with respect to the vertical axis.
Depending on the intended use and performance of the hydromechanic coupling,
it may be necessary to modify the filling and reduce the quantity of oil.
Less oil in the coupling determines:
A- a longer and more gradual start-up
B- lower power consumption on start-up
C- better protection of the power transmission elements in case of overload
D- higher slip under stable operating conditions.
CAUTION
Before the hydromechanic coupling is filled and/or calibrated,
observe the following steps:
A- stop the motor and wait for the rotation components to stop,
B- cut out power supply and apply a safety padlock,
C- signal the operation under way,
D- wait for the cooling, if needed (max 40°C).
6.4.2a
Open the accident-prevention guard of the operating area to access the coupling.
6.4.2b
Unscrew the plug or device and remove it from the upper oil filling hole.
6.4.2c
Use a container for oil collection; remove the plug or the device at the radial or
lower hole of the coupling and drain the oil in excess of the calibration quantity.
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ROTOMEC
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6.4.2
6.4.2c
6.4.2b
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P o w e r T r a n s m i s s i o n
This section shows the tables with the filling quantity (in litres) for the coupling, according to a specific
angular location of the lubricant oil screw plug with respect to the vertical axis of the hydromechanic coupling
horizontally mounted.
For different filling angles (reported on the first line above) of hydromechanic coupling size (as pointed out
on the first column left) you may read the correct angular position of the horizontally mounted coupling and
the height of the plug with respect to the lowest point of the external diameter of the coupling.
CAUTION
The hydromechanic coupling must be filled in compliance with the type of expected start-up.
Do not fill the coupling with a too small or a too large amount of fluid. DANGER OF OVERHEATING
AND BEARING SEIZURE AND DANGER OF OIL LEAKAGE DUE TO INTERNAL OVERPRESSURE
AND POSSIBLE STRUCTURAL FAILURE.
6.2 TABLES FOR COUPLING FILLING
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COUPLING
K e SCF
FILLING ANGLE (α) AND HEIGHT (h) IN mm
30°
45°
60°
75°
90°
SIZE
ØA
kg
liters
h mm
kg
liters
h mm
kg
liters
h mm
kg
liters
h mm
kg
liters
h mm
20
230
1,08
1,23
1
1,14
167
0,85
0,97
150
0,75
0,85
137
0,6
0,68
110
25
1,85
2,1
1,7
1,94
1,5
1,7
1,35
1,54
1,1
1,25
30
290
2,3
2,6
2,1
2,4
218
1,85
2,1
195
1,5
1,7
168
1,3
1,48
140
40
327
3
3,4
2,8
3,2
256
2,5
2,8
229
1,9
2,1
198
1,8
2
164
40M
338
3
3,4
6,6
3,2
256
2,5
2,8
229
1,9
2,1
198
1,8
2
164
55
430
7
8
6,6
7,5
312
4,8
5,5
281
4,1
4,7
244
3,5
4
206
65
520
12,7
14,5
12
13,7
395
10
11,4
353
8,7
10
304
6,8
7,7
251
75
640
18,3
21
17,4
20
15
17
14
16
10,6
12
85
810
48
55
45
51
40
46
37
42
28
32
ROTOMEC
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