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Safety recommendations for maintenance 

Before doing any maintenance work, depressurise the water system and isolate the pump from all en-

ergy sources. 

When the jobs are done, before restarting the pump, check that no tools, rags or other materials have 

been left close to moving parts or in hazardous zones. 

Replace any excessively worn components with original parts and use the lubricants recommended by 

the manufacturer. 

Scheduled maintenance table 

Frequency 

Component 

Procedure 

Reference 

Filter 

Inspect filter cartridge  See "Inspecting the 

filter" 

Pump 

Checking the oil level 

See "Checking the oil 

level" 

Connection of pump to power 

Inspection 

-

Every working day 

source (pulley, belt, coupling) 

Pump 

Inspect mounting 

See "Inspecting the 

pump mounting" 

Pipes and connections 

Inspection 

See "Inspecting the 
connections and pipes" 

Pressure accumulator (if in-

Check inflation pres-

See "Checking the 

Every 100 working 

stalled) 

sure 

inflation pressure" 

hours 

Reduction gear (if installed) 

Check oil 

See "Checking the oil 

level" 

Dispose of the worn-out components and lubricants in accordance with the relevant statutory require­

ments. 

Carry out the routine maintenance procedures specified by the manufacturer to keep the pump safe 

and performing well. 

Summary of Contents for AR 20 LFP

Page 1: ... 20 1 1 9 2 AR20LFP 1450 RPm Semi HydRAuLic THRee diAPHRAgm PumP modeL mAx gPm mAx L min mAx PSi mAx BAR HP PoweR weigHT LBS AR20LFP 5 3 20 290 20 1 0 9 2 140 F Max Water Temp 1 Suction 3 8 HB Outlet diAPHRAgm KiTS modeL deScRiPTion AR46561 BlueFlexTM VALVe KiTS modeL deScRiPTion AR46564 Valves bp AR46565 Valves LFP oiL modeL deScRiPTion AR64532D Oil AR64532D C Case 6 Oil ...

Page 2: ...mp SP GCI Version GR GCI Version for Gas Engines with 3 4 Shaft Shown with Hydraulic Flange SAE A A Part Number AR55387 Hydraulic Motor not included AR20LFP GCI 12VDC AR25LFP GCI 12VDC AR20LFP GCI 24VDC AR25LFP GCI 24VDC ...

Page 3: ...ng the pump keep the control unit in the full bypass position until the pump has primed 2 After starting the pump and after the pump is primed move the control unit into the pressure regulation position Adjust the pressure by turning the red pressure adjustment knob on the control unit 3 To stop the pump reduce the pressure by rotating the lever to the full bypass position 4 Stop the pump ...

Page 4: ...Do not draw in liquids at temperatures above 50 C or below 5 C Do not use the pump in drinking water supply systems Do not use the pump on products for human consumption Do not use the pump on pharmaceutical products Do not use the pump without first checking that the intake and delivery circuit pipelines are correctly secured and free from leaks Do not use the pump without the safety devices prov...

Page 5: ...n diagram guideline The following is a simplified illustration of the typical installation layout and is purely a guideline Control Unit by pass Control Unit Delivery line filter Tank Agitation Pump Intake filter ...

Page 6: ... see Technical Data free from restrictions and elbows and with a filter of suitable capacity see Installation For occasional duty such as filling water supply tanks the pump can be operated at a vacuum drawing in liq uids from reservoirs having the surface of the liquid up to 5 m below the pump intake fitting for periods of no more than 15minutes Drawing in liquids from lower levels or for longer ...

Page 7: ...missing ordamaged contact the dealer or manufacturer to agree the procedures to be followed The packaging material must be disposed of appropriately in accordance with the relevant statutory require ments Transport The pumpmay be shipped by a variety ofmeans oftransport road rail sea or air depending on itsdestination Secure the packaging firmly to the vehicle duringtransport to preventrandom move...

Page 8: ...ng a vacuum gauge to the pump intake fitting The rated pressure of the outlet hose fittings and clamps must be no less than the maximum rated pressure ofthe pump Replacing the intake and outlet fittings provided onthe pumpby the manufacturer withsmaller diameter alternatives may reduce the pump s performance and void the warranty Mounting the pump The pump must be installed on a horizontal surface...

Page 9: ...g the oil level section Before putting the pump into operation check that the control unit is set for full bypass low pressure Starting and stopping the pump To start the pump proceed as described below 1 When starting the pump keep the control unit in the full bypass position until the pump has primed 2 After starting the pump and after the pump is primed move the control unit into the pressure r...

Page 10: ...artridge See Inspecting the filter Pump Checking the oil level See Checking the oil level Connection of pump to power Inspection Every working day source pulley belt coupling Pump Inspect mounting See Inspecting the pump mounting Pipes and connections Inspection See Inspecting the connections and pipes Pressure accumulator if in Check inflation pres See Checking the Every 100 working stalled sure ...

Page 11: ...eplaced Inspecting the Inlet Filter Inspect the inlet filter cartridge If the cartridge is fouled wash it thoroughly to remove the dirt If the cartridge is torn or cracked it must be replaced Checking the oil level Check the oil with the pump level ensuring that it has been running for at least 5 minutes in normal working conditions If the oil level is not visible or completely full add or remove ...

Page 12: ...the pump of products which are often corrosive and may damage its wetted parts over the long term If thepump is instorageduring the winter in locations with severe weather conditions it is very important to flush out the internal circuit as described above and then fill the pump with A R Pump Saver AR64511 Then take care to drain the liquid from the system and the pump Putting the pump back into s...

Page 13: ...r Restriction in intake circuit Intake filter fouled Intakecircuit not airtight Residual air left inside pump Valve plate stuck to its seat Pressure accumulator deflated Pressure accumulator deflated Restriction in intake circuit Intake filter fouled Pump drawing in liquid from too low a level Remedy Tighten repair or replace hoses and fittings as necessary Move control switching leverto By pass s...

Page 14: ...ft worn Oil pressure inside pump too high Restore correct oil level in tank One or more diaphragms ruptured Stop the pump at once Replace the diaphragms 1 Oil on pump body or base Pumpusing too much oil oil flowing from delivery port or oil whitish in color water oil emul sion in tank ...

Page 15: ... 11 9 10 7 5 7 77 13 10 9 11 3 5 84 3 2 3 4 5 84 4 4 6 84 1 15 17 76 18 20 21 16 80 79 19 2 22 78 1 27 28 81 29 25 24 26 23 25 83 38 37 36 46 88 87 42 41 86 40 39 33 47 51 52 48 49 34 35 31 44 43 31 32 85 30 82 Version 89 91 92 105 93 94 95 97 98 99 100 96 103 90 101 102 104 53 54 55 55 57 58 60 61 1 Version 6 6 ...

Page 16: ...L 6 9 3340200 Spacer 6 10 3340211 Gasket 6 Viton 11 390061 O ring Ø 20 63x2 62 6 Viton 13 3120690 Plug 3 8 G 1 T18 15 3120460 Hose barb Elbow 1 1 16 3120440 Ring nut 1 G 1 17 394380 Bolt M6x30 2 T88 SS 18 1040310 Oil sight glass 1 19 390180 O ring Ø 18 72x2 62 1 20 650920 O ring Ø 53 65x2 62 1 21 1040326 Cap black 1 AR20 1040324 Cap red 1 AR25 22 820440 Bolt M6x6 1 23 3340541 Connecting rod alumin...

Page 17: ...P SP GCI 1 11 9 10 7 5 7 77 13 10 9 11 3 5 84 3 2 3 4 5 84 4 4 6 84 1 15 17 76 18 20 21 16 80 79 19 12 14 2 22 78 1 27 28 81 29 25 24 26 23 25 83 38 37 36 46 88 87 42 41 86 40 39 33 47 51 52 48 49 34 35 31 44 43 31 32 85 30 82 Version 53 54 55 55 57 58 60 61 1 Version 4 6 Version 109 108 107 82 110 31 ...

Page 18: ... Viton 12 3340270 Base 1 13 3120690 Plug 3 8 G 1 T18 14 180433 Bolt 2 15 3120460 Hose barb Elbow 1 1 16 3120440 Ring nut 1 G 1 17 394380 Bolt M6x30 2 T88 SS 18 1040310 Oil sight glass 1 19 390180 O ring Ø 18 72x2 62 1 20 650920 O ring Ø 53 65x2 62 1 21 1040326 Cap black 1 AR20 1040324 Cap red 1 AR25 22 820440 Bolt M6x6 1 23 3340541 Connecting rod aluminum 3 24 3340510 Pin 3 25 480160 Snap ring Øi ...

Page 19: ...8 4 4 3 4 1 11 6 Ø 1 Ø 3 4 97 9 2 4 8 Ø 0 33 7 72 3 82 3 90 AR20LFP SP GCI AR25LFP SP GCI Dimensions 2 05 1 22 0 79 2 57 2 93 2 95 5 89 7 74 Ø 14 mm ...

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