WESTCAR ROTOMEC ALFA, Original Instructions Manual, Page: 67 / 84

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P
o w e r
T
r a n s m i s s i o n
P
art
6 - t
ranSMiSSion
o
il
f
illing and
c
alibration
ROTOMEC U
Se and
M
aintenance
h
andbook
CAUTION
Promptly remove any oil dripping and/or leakage from the coupling
or the soil. RISK OF SLIPPERY FLOOR, CRASH AND/OR FALL.
CAUTION
Do not spill exhausted oil in the environment, but provide for its
collection and storage in appropriate drums and/or call authorised waste
disposal companies. RISK OF POLLUTION.
6.6.5
Screw the plug or the device in the filling hole of the coupling again.
6.6.6
Effect the oil filling and/or coupling calibration as described
in section 6.4 FILLING AND CALIBRATION OF VERTICALLY MOUNTED
COUPLINGS.
NOTE
The oil inside the coupling does not flow out completely, because a very
small quantity remains in the interstices; this has to be taken into account
during the filling of the coupling (see section 6.7 TABLE FOR RESIDUAL OIL
DEPLETION IN VERTICALLY MOUNTED COUPLINGS).
Once these operations have been completed, the oil change in vertically
mounted couplings has ended.
6.6.5
6.6.6
71 P o w e r T r a n s m i s s i o n
P art 7 - o rdinary M aintenance
7.2.4 COUPLING EQUIPPED WITH CL
The oil level check in the hydromechanic couplings equipped with CL device for
level control may be easily carried out inspecting the coupling, be it horizontally
or vertically mounted, (see section 6.3 FILLING AND CALIBRATION OF HORI-
ZONTALLY MOUNTED COUPLINGS) as follows:
7.2.4a
Turn the coupling until the control device is in an accessible position below the
oil level.
7.2.4b
Unscrew the plug of the CL device
7.2.4c
Screw on the CL device the ring nut and the tube, taking care to keep the free
end of the scoop tube upright.
CAUTION
When the scoop tube is installed with a ring nut on the CL device, the
inside oil will flow through the scoop tube and the free end shell have to be
kept upright. RISK OF OIL LEAK AND SLIPPERY FLOOR.
7.2.4d
Let the oil flow into the tube until it reaches the appropriate oil level inside the
hydromechanic coupling.
7.2.4e
Measure the oil level “h” in the scoop tube and compare the value obtained
with the dimension “h” in the filling tables (see 6.2 TABLES FOR COUPLING
FILLING).
7.2.4c
ROTOMEC U Se and M aintenance h andbook
PLUG
7.2.4a
7.2.4b
56 P o w e r T r a n s m i s s i o n
Part 6 - tranSMiSSion oil filling and calibration ROTOMEC USe and Maintenance handbook
P o w e r T r a n s m i s s i o n
ROTOFLUID Use anD maInTenance hanDbOOk
62
6.1 TRANSMISSION OIL TECHNICAL CHARACTERISTICS The ROTOFLUID fluid coupling operates with hydraulic oil as transmission fluid.
The applications of the fluid couplings in the natural environment must give priority to biodegradable mineral oils used for environmental protection. CAUTION The couplings manufactured according to the ATEX directive and installed in explosive atmospheres shall use oils with higher flash temperature (T max) than pointed out on the marking of the fluid couplings. The basic characteristics for a good selection of transmission oils are:
6.1.1 VISCOSITY Good oil viscosity and dynamic fluidity permit the maximum torque transmission. Remember that oil varies its fluidity as a function of temperature (the hotter the temperature, the more fluid the oil). 6.1.2 LUBRICATING POWER High lubricating power ensures the lubrication of the coupling bearings. Basically, oil with viscosity degree among 1,9° and 4° Engler may be used.
CAUTION The oil inside the coupling must be fluid enough to transmit the torque. In case of low temperature (below 0°C), the first start-up requires a longer time to transmit the torque until standard operating conditions are reached. The recommended oils are listed below according to their technical characteristics and the properties of environment (temperature), where they are used.
OIL TRADEMARK BP CASTROL ESSO MOBIL Q 8 SHELL
OIL TYPE ENERGOL HPL22 HYSPIN AWS22 NUTO H22 DTE 22 VERDI 22 MORLINA 22 VISCOSITY ISO VG 22 22 22 22 22 22 CST A 40°C 21 22 21.01 22 22 22 ENGLER 2.3 2.3 2.3 2.3 2.3 2.3 VISCOSITY INDEX 104 100 104 110 98 80 DENSITY kg/m3 875 870 864 860 863 865 POURPOINT °F -22 -22 -31 -22 -22 -22 °C -30 -30 -35 -30 -30 -30
FLASH POINT
°F 377.6 410 399.2 392 406 401
°C 192 210 204 200 208 205
TABLE A OILS FOR TEMPERATURE UP TO -20°C These oils are very fluid and their viscosity is between 21 and 22 CST; they are adequate for operating temperatures not below -20°C.
PaRT 6 - TRansmIssIOn OIL FILLIng anD caLIbRaTIOn 6.3.1d 6.3.1e
6.3.1f 6.3.1g
6.3.1d
Fill up the coupling until the fluid overflows from the filling hole, using only the
oil recommended by the manufacturer (see section 6.1 TRANSMISSION OIL TECHNICAL CHARACTERISTICS).
CAUTION
Promptly remove any oil dripping or leakage from the coupling or the soil. RISK OF SLIPPERY FLOOR, CRASH AND/OR FALL.
6.3.1e
Position the plug or the device on the filling hole of the coupling again. 6.3.1f
Remove any used key and/or cloth or tool from the coupling and the operating
area. RISK OF PHYSICAL INTERFERENCE 6.3.1g
Close the guard protecting the hydromechanic coupling operating area.
The filling up of the horizontally mounted coupling has thus ended.
7.2.4e
h
7.2.4d
RING
NUT
TUBE
7.2.4c