ZPA Pecky, a.s. MODACT MO EE 52 120, Mounting And Operating Instructions

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Actuators with plastic lubricant
The types of lubricant and amounts are listed in the table.
For lubrication of drive units use plastic consistent lubricants.
Lubricants in the drive units supplied are designed to last the entire useful life of the unit.
During the time when the drive units are in use, it is not necessary to change or monitor the amount of the lubricant.
The actuators with plastic lubricant are labelled
“Filled: solid grease” on the power box at the side of the hand-wheel.
Note: The Ciatim 221 lubricant is designed for the friction points of rubber bushings against metal surfaces, roller
brake, the hub of an outer cogged wheel of a planetary-gear differential of actuators 52 120 (for locations of friction
between the shaft and other surfaces).
Actuators with oil charge
Check the level of oil at least yearly and refill, if required. Oil change should be made after 500 operating hoursof
the actuator, but not later than after 2 years of operation. The level of oil should be as high as the filling hole. For the
actuator, Grade PP 80 motor-car gearbox oil or an equivalent oil with the same properties
(viscosity class 80 W, according
to SAE/J306a) should be used.
Once in two years, it is recommended to lightly smear the driving wheel gearing on the output shaft and the gear
wheel of the position sensor in the control box. Use the lubricant CIATIM 201 or PM MOGUL LU 2-3.
Cleaning – Overhaul
The electric actuators modact EEx should be kept clean and care should be taken that they are not fouled with dirt
and dust. Cleaning of the cooling fins of the motor frame should be carried out at regular intervals and as frequently as
required by the operating conditions. From time to time, it is necessary to make sure that all connecting and earthing
terminals are properly tightened to prevent overheating during operation. It is recommended that the electric actuator
be subjected to the overhaul once a year unless otherwise specified in the inspection instructions of electric devices.
Checking of parts of explosion-proof closure
All actuator parts forming the explosion-proof closure (cover and control box) should be checked to ensure that they
are not broken or otherwise damaged (corroded, worn out etc.). With the electric actuator disconnected, the sealing ring
of cable bushings (of electric motor and terminal box) should be checked. Material of the sealing rings is aging and, if its
hardness exceeds 65° IRHD, the sealing rings should be replaced during reassembly. Defective parts of the closure must
not be used again in reassembling the electric actuator.
During all major repairs of the explosion-proof closure that might affect its safety, it is recommend that the electric actua-
tor Ex be forwarded to the manufacturer for repair. The manufacturer can, according to approved documentation and with
prescribed tests, bring the closure back to the state corresponding to ČSN EN 60079-0:2004 and ČSN EN 60079-1:2004.
Lubricants
Počet otáček Teplota okolí [°C]
Typové číslo
výstupního hřídele
-25 -40 -50 -60 -25 -40 -50
servomotoru
[ min
-1
]
+60 +60 +60 +60 +80 +80 +80
52 120, 52 121, 52 122
up to 40 M M M M M M M
52 123, 52 124
above 40 O O – – O O –
52 125
up to 70 M M M M M M M
above 70 O O – – O O –
Note: M – plastic lubricant, O – gearbox oil
Type number
of actuator
Adjusting speed
of output shaft
[ min-1]
Surrounding temperature [°C]
52 120 0,30
52 121, 52 122 0,50
52 123, 52 124 0,70
52 125 0,90
Type number
of drive unit
Amount of lubricant
(kg)
T1
(-25 – +70 °C)
CIATIM – 201 GOST 6267-74
CIATIM – 221 GOST 9433-80
U1
(-40 – +55 °C)
UCHL1
(-50 – +55 °C)
Type of lubricant for specific climatic conditions and temperature
The quantity of oil required is tabulated below:
Type No. Quantity of oil
(in l)
52 120 1,8
52 121, 52 122 3
52 123, 52 124 6,1
52 125 13