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Edition: 1.2 · 26.02.2021 · BA 880-EN Translation of the original Operating Instructions Keep in a safe place for future reference! Operating Instructions C-VLR 60 | 100 | 150 | 251 Vacuum pump C-Serie C-Series Klaue Claw...
• Are part of the following contact free-running claw vacuum pumps of type C-VLR 60, C-VLR 100, C-VLR 150, and C-VLR 251. • Describe how to use these pumps safely and properly in all life phases and are true for all responsible persons •...
Foreword Disclaimer Please not that we cannot accept any liability for damages arising from failure to observe the instructions. Gardner Denver Schopfheim GmbH does not assume liability for the following cases: • Not intended use • Not complying with these instructions •...
Safety Safety The manufacturer is not responsible for damage due to non-observance of the whole documentation. General These operating instructions contain basic instructions for installation, commissioning, maintenance and in- spection work which must be obeyed to ensure the safe operation of the machine and prevent physical and material damage.
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Safety Symbol Explanation Warning signs Obey all safety instructions with this symbol in order to avoid injury or death. Warns of potential risk of injury Warns of electrical voltage Warns of suspended loads Warns of hot surface Mandatory signs Obey all instructions with this symbol in order to avoid injury or death. Observe the Operating Instructions Wear eye protection Wear protective gloves...
Safety Intended use The machine is suitable for conveying the following media: • All non-explosive, non-combustible, non-aggressive and non-poisonous dry gases and gas-air mixtures The machine must only be operated in such areas as are described in the operating instructions: •...
Safety Specialist personnel: Persons that can evaluate work assigned to them and evaluate possible risks as a result of their training, knowledge and experience as well as the applicable regulations. Qualified electrician: Specialist personnel that has obtained an electrotechnical specialist education and is familiar with work for setting up, operation and maintenance of electrical systems and operating material.
Safety Responsibilities of the user During the whole operating period of the machine, the operating company is obliged to prove that the limits have been met and the required maintenance and inspection works have been performed. The user must ensure that: •...
Safety 2.11 Safety equipment, monitored functions Missing or non-functional safety equipment may lead to dangerous operating states and thus result in life-threatening injuries. Ø Do not modify or bypass safety equipment and safety functions Ø Check the function at regular intervals 2.12 Emergency Stop / Emergency Off DANGER Mortal danger from missing safety equipment!
Transport and storage Transport and storage Transport WARNING Death by falling down or tipping over of the transported goods! Falling or tipping over of transported goods can cause serious or fatal injuries. Limbs can be crushed. Ø Select the lifting device according to the total weight to be transported. Ø...
Transport and storage The pump is supplied on a pallet. a) Unload the pump using a forklift or pallet truck and transport to the installation location. b) Tighten the eyebolt (Fig. 1/1) firmly. c) For lifting, the machine must be suspended using the eyebolt with lifting equipment. d) Lift the pump from the pallet and align.
Product overview and functioning Product Overview C-VLR 100 | C- VLR 150 Vacuum connection Oil recommendation plate Exhaust air outlet Data plate Vacuum control valve Rotation direction plate Cooling air inlet Drive motor Cooling air outlet Motor data plate Oil filling point Hot surfaces >...
Product overview and functioning Product overview C-VLR 251 Vacuum connection Oil recommendation plate Exhaust air outlet Data plate Vacuum control valve Rotation direction plate Cooling air inlet Drive motor Cooling air outlet Hot surfaces > 70 °C Oil filling point Terminal box Oil sight glass Exhaust silencer...
The C-VTR has a connecting thread on the inlet side and an exhaust silencer on the outlet side. With the C-VLR 60 the incoming air is cleaned by a filter cartridge. C-VLR 100--251 have a micro filter on the inlet side.
D 880-31 shows the dependency of the suction capacity on the inlet pressure. If the unit is switched on more frequently (at regular intervals of about 12 times an hour (C-VLR 60 – 150) or 10 times an hour (C-VLR 251)) at higher ambient temperatures and intake temperatures, the excess temperature limit of the motor winding and the bearings may be exceeded.
Installation Installation We urgently recommend having the installation carried out by qualified specialist personnel. Gardner Denver does not accept liability for damages caused by improper carrying out of installation. Preparation of installation Ensure the following conditions: • Machine freely accessible from all sides •...
Installation NOTICE Property damage due to wrong direction of rotation! Long connecting lines of more than 3 m can cause the reverse rotation after the machine has been switched off. Ø To protect the machine the user should install a non-return valve (ZRK ¦ accessories).
Installation Vacuum control and relief valve NOTICE Property damage! If the permissible vacuum is exceeded (see data plate) the machine may be damaged. Ø Operation without the standard control and relief valve is forbidden. Vacuum can be pre-set by turning the control knob (Fig. 2/ C to Fig. 4/C) as shown on the symbol fitted to the button.
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Installation a) Compare the motor data with the data of the existing mains network (current type, voltage, network frequency, permitted current value). b) The direction of rotation of the motor must correspond with the direction of rotation arrow (Fig. 3/O) on the motor flange.
Commissioning and decommissioning Commissioning and decommissioning Start-up WARNING Risk of injury due to improper operation! Improper operation of the machine can cause serious or fatal injuries. Ø Strictly observe the safety instructions. Especially observe the safety instruc- tions in chapter 2 . CAUTION Risk of injury due to hot surfaces! When the machine is at operating temperature the surface temperatures on the...
Commissioning and decommissioning 6.1.1 Installation check WARNING Risk of injury! A faulty installation as well as missing or non-functional safety equipment may lead to severe injuries. Ø Put the machine into operation only after it has been ensured that the instal- lation has been carried out flawlessly and the requirements for installation, assembly and electrical installation have been observed.
Commissioning and decommissioning CAUTION Risk of injury due to hot surfaces! When the machine is at operating temperature the surface temperatures on the components may rise to above 70 °C. This can cause burns. Ø Avoid touching the hot surfaces. They are marked by warning signs. Ø...
Extreme temperatures or pollutions can reduce the lifetime of the oil. The specified interval of up to 5,000 operating hours only applies to types of oil delivered or approved by Elmo Rietschle. For all works, observe the safety instructions described in chapter 2 “Safety”.
Check the oil level Depending on the degree of Clean vacuum pump pollution Monthly/ half-yearly C-VLR 60: Clean or replace filter cartridge 7.7.1 Depending on how dirty the C-VLR 100 - 251: Clean the micro filter 7.7.2 sucked medium is...
Maintenance and repair Clean the vacuum control valve WARNING Danger of injury when dealing with compressed air! When the vacuum control valve is blown off with compressed air, loose solid particles or powder dust swirling around may cause injury to the eyes. Inhaling can damage lungs.
Change the oil Replace oil every 5,000 operating hours. We recommend Elmo Rietschle oils (also see Oil recommendation plate (Fig. 7/M)) as operating agent: GEAR-LUBE 150 – Synthetic oil, highly loadable with high resistance to aging and with excellent wear...
Ø Regularly check and clean the integrated air filters. Ø Replace highly polluted or damaged air filters. 7.7.1 Vacuum-tight intake filter (C-VLR 60) The filter cartridge (Fig. 8/f ) of the vacuum-tight intake filter (Fig. 2/S) must be cleaned monthly or more of- ten depending on the contamination by blowing off from the inside outwards.
Maintenance and repair 7.7.2 Micro filter (C-VLR 100 - 251) The micro filter in the intake silencer must be cleaned more or less often depending on how dirty the sucked in medium is by washing or blowing off or replace it. Micro filter Intake silencer Screws...
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Housing Screws Fan housing Fig. 10 Couplings C-VLR 60 and C-VLR 100 - 251 C-VLR 60 a) Switch the motor off and secure it against unexpected restart. b) Secure the lifting gear on the ring bolt of the motor (Fig. 10/m).
Due to contamination with hazardous substances and operating agents during operation, there is a high health risk for the repair personnel. Ø For each machine that is sent to an Elmo Rietschle Service centre for inspec- tion, maintenance or repair, a fully completed, signed declaration of harmless- ness must be enclosed.
Errors Errors DANGER Danger to life! If malfunctions are disregarded and/or removed only insufficiently, serious to lethal injuries can occur. Ø Never put the pump in operation again after it has been switched off automat- ically without unequivocally finding out the reason for this shut-off and reme- dying it.
Disassembly and disposal Disassembly and disposal Disassembly WARNING Risk of injury due to substances hazardous to health! Due to contamination with hazardous substances and operating agents during operation, there is a high health risk for the personnel. Ø Before disassembly, properly clean the machine. Ø...
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