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RFL-7-500     Page  17 

5.6.2 

Flexible Coupling 

In the case of direct coupling with the drive, e.g. diesel engine, a torsionally flexible coupling must be selected in accordance with 
the details supplied by the motor manufacturer. This coupling must compensate for the cyclic irregularity of the drive. 

5.6.3 

Drive Shaft 

The drive shaft must: 

 

be constructed with a splined section, 

 

be balanced, 

 

have the smallest possible angle and be as short as possible. 
 

The central axes of the drive shaft flanges must be parallel to each other.The drive shaft mounting flange must be fitted to the 
drive shaft of the compressor. 
The splined shaft section of the drive shaft must be screwed on to the mounting flange on the compressor shaft. 
The drive shaft angle must not exceed 12° at a rotation speed of 1500 min

-1

 

Do not fit the drive shaft the wrong way round – pay attention to the markings. 

 

 

Fig. 5.5 Drive shaft 

 

 

5.6.4 

V-Belt 

If the engine speed must be geared up or down, a V-Belt drive is recommended. The nominal rotation speeds as in 

section 3.1

 

must be observed. 
 

 

Units  

 

Belt profile 

 

SPA 

Belt pulley diameter DW 

mm ( in) 

200 (2.874) 

Max. operating pressure for V-Belt drive 

barg ( psig) 

2.0 (29.0) 

Max. operating vacuum for V-Belt drive 

mbar (in. Hg.) 

300 (8.859) 

Number of belts 

 

Between the V-Belt pulley and the grille at least 12mm gap should be allowed, as it will restrict the intake of cooling air. 

Assembly of the V-Belt drive 

 

Ensure accurate parallel alignment of the axes in all planes of the driving and driven shaft. 

 

The belt grooves in the belt pulleys must not be misaligned. 

 

V-Belts of the correct lengths must be selected so that the belt tension is consistent. 

 

The belt tension is correct if the assembled and tensioned V-Belts can be pressed down with the thumb by 16 to 20mm per 
1000mm (0.63 to 0.79 in. Per 39.37 in.) axle span.V-Belt via electric motor is not permissible due to break-down torque. 

 

 

 

 

 

Deflection: 16...20 mm for every 1 m axle 
spacing, 

(0.63 to 0.79 in. Per 39.37 in.)

 

Axle spacing 

D

W

 

Belt pulley diameter: min. 200 mm (8 in) 

 

 

Fig. 5.6 Correct V-Belt tension 

1. 

Drive 

2. 

Spline 

3. 

Positional Marking 

4. 

RFL 102 

Summary of Contents for RFL Series

Page 1: ...PD BLOWERS VACUUM PUMPS RFL SERIES Owner s Manual RFL 102 RFL 7 500 Version 03 April 11 2018...

Page 2: ...2 PREVENTION OF SUCTION INTAKE OF DIRT AND RESIDUE 12 5 2 1 Suction Pipe 12 5 2 2 Vacuum Intake Filter 12 5 2 3 Safety Dome 12 5 2 4 Safety Tank 12 5 2 5 Combination Air Filter 13 5 3 NOISE SUPPRESSI...

Page 3: ...cking Intervals 22 7 3 POSSIBLE OPERATING ERRORS 22 7 4 PRECAUTIONS FOR LONG STANDSTILL PERIODS 23 7 5 RINSING AFTER MACHINE WAS OVER SUCKED 23 7 6 PROCEDURE IF FAULTS OCCUR 23 8 MAINTENANCE 25 8 1 WA...

Page 4: ...e used for long periods Store in a dry heated building Handle with care and keep the inlet and discharge ports covered Rotate the drive shaft of the machine monthly in the direction shown by the arrow...

Page 5: ...6 Information This symbol indicates information of particular interest to the operator of the machine 2 7 Points to Note The compressor vacuum pump has been constructed according to the latest techno...

Page 6: ...e pipe between the machine and the shut off valve Release pressure manually at the safety valve or vent the machine at the ventilation valve Pay attention to the manometer The drive prevention device...

Page 7: ...ssion operation2 psig 2 9 Nominal vacuum1 psiA 2 9 Max permitted vacuum up to 3 minutes per hour 1 psiA 2 18 Power requirement at drive shaft for 2 bar pressure hp 41 6 Min speed rpm 1000 Max speed rp...

Page 8: ...3 2 Dimensions Fig 3 1 Dimensions of RFL 102 9 Fig 3 2 Hydraulic Drive Dimensions Hydraulic Drive Details Kit Number TEN009820 Motor Flange Type SAE C 4 BOLT Gearbox Details Kit Number TEN009819 Motor...

Page 9: ...ng Hours h 40 Oil Level Checks per Day once 3 4 Cooling Air cooling is carried out by means of two fans mounted at either end of the rotor shaft which draw in cool air to pass over the cooling fins on...

Page 10: ...the covers on inlet and discharge ports only at the time of actual installation Rotate the drive shaft of the machine monthly in the direction shown by the arrows on the machine body The protective c...

Page 11: ...Manometer 4 Vacuum relief valve 5 Overpressure safety valve 6 Venting shut off valve 7 Vacuum intake filter 8 Compressor Vacuum pump 9 Thermometer 10 Manometer 11 Silencer Oil separator Fig 5 2 Machin...

Page 12: ...easily accessible be protected from dirt flying debris and water splash provide enough clearance for the connection of the suction and pressure pipes provide easy access for maintenance e g oil fille...

Page 13: ...nants and reduces suction noise The filter element must be removable for maintenance 5 2 3 Safety Dome The safety dome on the vehicle tank must include not only a float valve but also a swell protecti...

Page 14: ...102 is far below the value permitted for commercial vehicles To preserve these values when the machine is installed the low noise installation is necessary Air noise suppression by noise suppressing...

Page 15: ...d buffers to support the belt forces and a counter bearing on the side of the machine opposite the belt drive are necessary 5 4 Safety and Monitoring Features The operating safety of the machine i e o...

Page 16: ...tted operating pressure It must be able to expel the entire flow capacity of the compressor vacuum pump The valve must also be fitted with a manual ventilation device If the safety valve is mounted fi...

Page 17: ...monitor on the machine with a display which is visible to the operator In any case the rotational speed must be monitored after assembly of the compressor vacuum pump and operating instructions for th...

Page 18: ...down a V Belt drive is recommended The nominal rotation speeds as in section 3 1 must be observed Units Belt profile SPA Belt pulley diameter DW mm in 200 2 874 Max operating pressure for V Belt driv...

Page 19: ...base plate Flatness within 0 010 in Can be driven by direct coupling flexible coupling or V belt drive Check oil level every 24 hours of operation Change oil when gear drive has been in service for 50...

Page 20: ...rmation concerning the operation and maintenance of the machine 6 2 Lubricating Oil See section 6 7 for types of oil For the RFL 102 single grade oils are prescribed Use of multi grade oils may result...

Page 21: ...ubricating oil type for the RFL 102 is SAE 30 For ambient temperatures above 40 C use SAE 40 For ambient temperatures below 0 C use SAE 20 For the RFL 102 single grade oils are recommended Use of mult...

Page 22: ...lubricating oil For the lubricating oil specification see section 6 7 7 2 1 Safety Valve A non lockable safety valve must be installed in the pressure line after every compressor It must be set so tha...

Page 23: ...the entire volume via the safety valve when the pressure line is closed Vacuum too low see section 7 2 or Rating Plate Compressed air temperature too high see section 7 2 Poor cooling cooling air sup...

Page 24: ...a malfunction occurs the following table may provide the cause and solution to the problem Fault Possible cause Elimination Volume flow performance of compressor vacuum pump deteriorates Vacuum filter...

Page 25: ...to rotation speed limits Discharge pressure too high Adhere to nominal pressure activate check safety valve Manometer gives incorrect reading Replace manometer Exhaust silencer blocked Replace exhaus...

Page 26: ...r vacuum pump Maintenance points Type of work See section Maintenance intervals 1 week 1 month 3 months Other Coolant air path Check clean 8 2 1 Compressor Vacuum pump Clean 8 2 2 Vacuum filter Clean...

Page 27: ...ine must be cleaned weekly Washing or rinsing with high pressure water jets may result in water penetration which can cause failure of the compressor vacuum pump Carefully clean remove any dirt on the...

Page 28: ...sion Drive guards must only be removed when the machine is at a standstill and the vehicle engine is switched off V Belts and the V Belt tension must be checked every week and if necessary tightened o...

Page 29: ...moved Insert a slide hammer into the M6 tapped end of the cylinder pin 4 and carefully remove the guide plate 2 valve seat 3 and pin from the body After careful cleaning check the valve seat for the q...

Page 30: ...nd measure the distance to the rotor surface with a reliable depth gauge see fig 8 2 Fig 8 2 Vane Wear Inspection The dimension should not exceed 5mm If the wear limit reaches 5mm the rotor vanes must...

Page 31: ...meet the latest legal requirements When ordering spare parts please provide the following information Example Machine type RFL 102 Machine no L0001 Year of manufacture 2015 Part no TW34278100 Quantit...

Page 32: ...tact lyon gardnerdenver com Germany Gardner Denver Deutschland GmbH Am Dorn 14 48308 Senden Germany Phone 49 0 253634840 Fax 49 0 25363484010 Email info de gardnerdenver com Netherlands Gardner Denver...

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