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PME120/RHD250 to 4000 (Contrac)
ELECTRICAL ROTARY ACTUATOR | OI/PME/RHD250/4000-EN REV. F
10
Maintenance
Safety instructions
WARNING
Risk of injury due to live parts!
Risk of death or serious injuries due to electricity and
unexpected machine movements. In automatic mode the
motor is always under power, even at standstill.
• When working on the actuator or the related subassembly,
switch off the supply voltage for the electronic unit and
separate anti-condensation heater (option), and take
precautions to prevent unintentional switch-on.
Notice on auxiliary and operating materials
• Observe the manufacturer's regulations and safety data
sheets!
• Mineral oil and grease can contain additives that, under
special conditions, may lead to adverse effects.
• Skin contact with oil or grease may cause skin damage (skin
irritations, inflammations, allergies). Avoid long-term,
excessive or repeated skin contact. If lubricants contact your
skin, immediately wash with water and soap! Do not allow
lubricants to get in contact with open wounds!
• If lubricant splashes into the eye, rinse with plenty of water
for at least 15 minutes and then consult a doctor!
• When handling lubricants use suited skin protection and care
products or wear oil-resistant gloves.
• Lubricants that dripped to the floor are a potential source of
danger, due to the slip hazard created. Spread sawdust or
use oil adsorbent to bind and remove the lubricants.
Repair and maintenance activities may only be performed by
authorized customer service personnel.
When replacing or repairing individual components, use original
spare parts.
General
Contrac actuators feature a robust construction. As a result,
they are highly reliable and require minimal maintenance. The
maintenance intervals depend upon the effective load and are
therefore not specified here.
The built-in microprocessor evaluates the actual load factors
(e.g. torques, forces, temperatures, etc.) and derives the
remaining operating time until the next routine maintenance is
required.
Use the configuration program to view this information.
Inspection and overhaul
• Only use genuine spare parts for maintenance of the
actuators (e.g., ball bearings, gaskets, and oil).
• Maintenance work needs to be performed after the life cycle
has expired.
• Inspection / maintenance is due once the intervals specified
have passed, at the very latest.
Maintenance plan
Interval Measures
1 × per year
Visual check of the gaskets for leaks. Remove and
replace if leaks are present.
Every 2 years
Functional check: drive the actuator 2 × through the
entire stroke range and check for correct speed
reduction.
Every 4 years
Check oil level
max. every 10 years,
preferably after the
expiry of the calculated
remaining service time
Replace oil, roller bearings, and gaskets on motor
and gears.
Check gear wheels for wear; replace if necessary.
Make sure that no chippings or other materials get into the
gears during maintenance work.
Do not move the actuator during the oil level check.
