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faq

 
GRAVITY AND SUCTION DRAINERS
You are probably not respecting one of the following points as cited in the manual:
- close the tap located under the collection bowl;
- raise the collection tube of the bowl itself to its maximum height;
- open the distribution tap and connect the equipment to the compressed air.
If you feel air coming out of the holes between the fastening ring nut and collection bowl, this means that the latter is not raised to its maximum height and the vent holes are not plugged.
Code 4365 dates back to at least 1999 and corresponds almost exactly to article 43065. The only difference may be in the size of the pre-chamber, as outlined in a previous FAQ. Be careful therefore when ordering this kind of spare part: replacements are only available for those of size h= 320 mm and L= 200 mm or h= 200 mm and L= 250 mm.
No. With the KR4207 collection bowl replacement kit, the internal grill cannot be removed or sold separately.
Oil has probably got into the Venturi group. In this case, you should remove the silencer and clean all of its components. A more thorough clean can be carried out by connecting compressed air to the rapid connection and, while holding a cloth in front of the silencer connection, blowing air until all the oil present has come out. Lastly, check that there is no air suction between the probe connection and the handle with the opening tap.
Check that:
1) the taps are closed correctly;
2) the H206, H360 and H061 seals in the suction group are intact. If there is wear or dirt, clean or replace the part. If the problems persists, change the entire suction group seal pack.
There are four possible reasons:
1) the taps have been accidentally left open; check they are closed and repeat the operation;
2) the pressure inside the workshop system is insufficient. Check that it reaches 6.5/7 bar;
3) Check for any blockage due to dirt or wear of the Venturi group or KG180 silencer. It is probably necessary to clean them with detergent and blow them with compressed air;
4) check that the air input valve is clean and not obstructed: looking at it with the naked eye, and with the silencer disconnected, the hole, roughly 2 mm in size, should allow you to see freely from one side to the other.
This problem is caused by incorrect use of the vent holes that serve to extract air from the tank when carrying out oil collection by drainage. Without these holes, or if they are used incorrectly, collection will be a lot slower and the oil will flow more slowly from the bowl to the tank, as well as putting significant strain on the instrument. These holes are automatically closed if the oil collection bowl is positioned at the maximum height. Avoid this position during the oil collection phase. On the contrary, it is necessary to raise the bowl to its maximum height during the emptying phase when the tank is being pressurised, as specified in the dedicated instruction booklet.
Check the following points:
1) the vacuum gauge is broken or not set; to know whether the equipment is depressurised, leave it connected to the system for two minutes and then check with a suction probe to see if there is any air suction. In this case, replace the vacuum gauge;
2 ) the needle is not moving because a vacuum is not actually being created inside. Check the other FAQs to try to solve the problem.
Check the following points:
1) the suction probe is damaged and should be replaced;
2) the oil is too cold. We recommend suction with hot oil at a temperature of 70-80 °C (with the motor just switched off);
3) the suction probe touches the base of the bowl, plugging it. Simply raise it by a few millimetres to restart suction; also check that the suction hose and the probes are not obstructed, and that the end of the probe tip is cut at 45° so that when touching the base, it does not block it;
4) the suction probe is blocked: carefully clean it by blowing it with compressed air;
5) suction is hindered by the closure of tap S215. Pay attention to the closure/opening of all taps and follow the procedure outlined in the manual;
6) seal H047 on the suction hose is worn or damaged. Check it and replace it if necessary.
Check that the H061 seals and those in the suction group are not worn or damaged. If they are, replace them.
Yes. The threaded attachment of our suction drainer tanks or pre-chambers (depending on the model) has not changed over time. It is therefore possible to purchase the KR4305 and mount it in place of the old part. This will ensure that the maintenance carried out is safer and longer lasting.
We recommend the 43116 suction drainer, suitable for various liquids (compatible with painted steel) and with larger probes.
Since around 2002, the dimensions of the pre-chamber have not changed and are: h= 320 mm, L= 200 mm (part code KR4306). In the past, with earlier suction drainer versions, other types of pre-chamber were used: the first was 250 mm high and 200 mm wide and is no longer on sale; the second is 200 mm high and 250 mm wide (article KR133) and can still be purchased.
There are two possible reasons:
1) incorrect use of the vent holes that serve to extract air from the tank during the oil collection phase. Without these holes, or if they are used incorrectly, collection will be a lot slower and the oil will flow more slowly from the bowl to the tank, as well as putting significant strain on the instrument. During the emptying phase, when the tank is full of oil, these are pressurised: it is therefore necessary to close these holes by simply raising the central bowl to its maximum height as specified in the dedicated instruction booklet;
2) the seals on the connection tube are worn: check their integrity and replace them if necessary.
Of course. The entire product is composed of two parts though: the collection bowl KR4201 and the funnel with grill KR4207.
HOSE REELS
Yes, it is possible to use the 89010, 89011, 89109 and 89110 hose reels with anti-freeze.
The twin hose for welding mounted on our hose reels cannot be used with propane gas.
SERVICE COLUMN
It is not possible to mount these series of hose reels, for two reasons:
- the columns do not have the holes to fasten these items;
- the structure is not designed to support the massive weight of these hose reels.
DIGITAL METERS
If the digital-meter does not correctly measure the quantity of liquid distributed after a battery change or after a medium-long period of activity, you should carry out calibration, following the procedure illustrated in the digital-meter instruction manual (included in the digital-meter packaging and available on request from the technical office) or by watching the video in the “Applications - video” section of our site, also uploaded to the “RAASM lubrication” channel on YouTube.
The malfunction can be solved by following these procedures:
1) check on the programming menu that the arrow indicating flow direction is correctly set, with the actual direction of distribution flow;
2) unscrew the 8 rear screws and open the cover: check that the oval gear with the four magnets is positioned to the right (keeping the instrument so that the display faces downwards) and with the magnets positioned downwards (not visible on opening, or rather towards the electronic board).
No, the various models making up our digital-meter family work with oil, diesel, window cleaning liquid and anti-freeze. We do not currently have tools to measure grease distribution.
If this occurs after a battery change, remove the batteries and repeat the operation, following the procedure outlined in the instruction manual.
Yes, this is no problem because the seals are all in Viton®.
OIL DISPENSERS
The maximum quantity of fluid that can be supplied with a single air charge depends on the viscosity of the oil itself.
By filling the distributor tank 2/3 full and pressurising it to 8 bar (as indicated in the manual), it will be able to distribute the entire quantity of oil. Distribution will be slower if the internal pressure is lowered of course.
There is a check valve on the air input tap. If you want to replace the tap with a rapid air connection for example, simply follow the directions provided in the manual instructions In this case, you would need to place a ball tap, code S201, in front of the rapid connection to serve as a check valve.
FCS
The bi-valve pulser allows for greater precision in measuring the fluid distributed thanks to the progressive double closure of the valve. In addition, only the bi-valve has a line filter to ensure the cleaning of the fluid supplied.
TYRE INFLATORS
The tyre inflator may not work correctly if there is condensation inside the tank. In this case, turn the release cap twice and, once the tank has completely emptied, fully unscrew the cap and dry the inside thoroughly.
GREASE DISPENSERS
There could be more than one reason:
1) check that the viscosity of the grease is in line with that dictated in the manual and no greater than second grade (NLGI 2);
2) check the cleaning of the hose and nozzle where impurities may have stopped;
3) check the functionality and integrity of the grease pressure diaphragm;
4) remove the suction hose and check that the seeger and O-Ring half way along the hose are correctly positioned and have not moved. Check that the inside of the hose is not dirty as this will impede the passage of grease.
PRESSURE SPRAYERS
The AISI 304 stainless steel pressure sprayer, art. 23024, should not be confused with pressure sprayers art. 22017 and art. 22024 with a tank in painted carbon steel. RAASM, as well as certifying the AISI 304 stainless steel composition of the aforementioned pressure sprayer, ensures easy identification. The magnet check is not infallible and can actually be deceptive for those steel parts under the greatest strain of bending. To ensure that it belongs to the stainless steel family:
1) check that it has ribbing close to the central weld joint of the tank, while those in carbon steel have two ribbings, one above and one below the weld joint;
2) remove the tank filling cap and check stainless steel composition of the item by observing the internal threading.
No, the AISI 304 painted steel and stainless steel pressure sprayers are not suitable for use with these highly corrosive liquids or, in general, with solutions containing sodium hypochlorite.
No, the use of this type of liquid could compromise the integrity and operation of the pressure sprayer.
If using solvents, for example water, ethanol, acetic acid and acetone, we recommend the stainless steel pressure sprayer.
OIL AND GREASE GUNS
Grease leaking from the handle is caused by the deterioration of the H031 and H901 seals on the handle itself. If, after unscrewing the handle, the seals appear intact, it is possible that ball pressure stem KR6601 is streaked with penetrative solid residues. In this case, you should unscrew the handle and replace the stem itself.
Leakage is due to the wear of the two O-Rings H457, H805 or H501, depending on the model (refer to the relevant spare parts). Unscrew the joint, check its integrity and replace it if necessary.
The leakage is due to worn pin seals. Consult the spare parts and, depending on the model, replace the damaged seals.
Yes, diesel can also be distributed with the aluminium oil guns.
DIAPHRAGM PUMP
The damage is probably due to increased pressure on the output hose as a result of a heat increase 10 times greater than that permitted. Check the operating conditions of the system and replace the damaged collector if possible.
The minimum activation pressure for this type of diaphragm varies depending on the size of the pump: the 1/2” activates at approximately 3.5 bar, the 1.1/4” at 1.5 bar.
Yes, the springs, we well as the balls, seals and seats are included in the valve kit. These can also be purchased separately, check the relative spare parts for the reference code.
Check the following steps:
1) clean the air input and output filters of any impurities that may be deposited inside;
2) check the 4 valves by unscrewing the collectors and cleaning the springs and balls;
3) check the integrity (possible cuts and dirt) of the diaphragm by unscrewing the flanges.
Aluminium PTFE diaphragm pumps are recommended for this type of use.
All RAASM diaphragm pumps have ATEX certification. In particular, those in full aluminium are certified for zone 1 (Category 2 - high protection), while those in polypropylene are certified for zone 2 (Category 3 - normal protection).
Steel pumps are not currently available. For particularly demanding applications, or for very aggressive environments, diaphragm pumps in polypropylene are available, fully resistant even to the passage of water-based liquids and in corrosive environments.
DISPENSING AND TRANSFER OIL PUMPS
The pump versions with PTFE seals are suitable for this kind of use.
Stainless steel pumps with Viton® seals are recommended.
You should purchase kit KR3502 with reduction 38094 (G 3/4” (m) - G 1” (f), thread G 3/4” (f)). These are standard with certain pump models: check by referring to the spare parts. Add the desired extension by choosing among those on page 112 of our catalogue, as well as bottom pick-up filter valve 10/20.
The seals on the upper pick-up body are worn: check them and replace them, following the procedure to disassemble the lower motor body.
Slowing is due to:
1) blockage of the air input and output filter (silencer) 0254 and 0258. In this case, you must disassemble the filters, wash them with detergent and carefully blow them with compressed air;
2) condensation inside the motor cylinder, which causes freezing. To solve the problem, carry out a forced lubrication of the motor cylinder as described in the manual.
Part I012 of air distributor KR3306 is worn due to oxidation or the presence of condensation in the compressed air. We recommend replacing the KR3306 to restore correct item function.
We recommend that you carry out the following two procedures:
1) the filter and bottom pick-up valve could be blocked. Remove them and carefully clean them with compressed air;
2) the pumping piston seals are worn or compromised. In this case, you should remove the pick-up filter and suction piston and carefully wash them, replacing any damaged parts.
The A456 pressure inverter probably cannot move correctly due to the incorrect positioning of one of the KR3305 plates. Remove the air input cap and check that the two plates of KR3305 are connected to A456 (refer to our spares parts). If the plates are not in position, use needle nose pliers to reposition them correctly.
This may be due to the following scenarios:
1) deterioration of the motor body seals, in particular (where foreseen) the H038;
2) deterioration of the motor cylinder piston;
3) deterioration of the motor cylinder air distributor KR3306 (for 600 and 650 series pumps).
In these cases, it is important to disassemble the parts in question to clean them or, if damage is identified, replace them.
The seal pack separating the pumping piston from the air piston is damaged or worn. Replace the seals and check the state of wear of the crankshaft.
GREASE PUMPS
The replacement seal kits for grease pumps must be checked by the technical office to ensure their compatibility with older models.
Pumps 6241, 6248, 6274 and 6295, for example, have already been checked and seal kits KR6250 and KR6203 are suitable for use with them.
Slowing may be due to:
1) a blockage of the silencer filter. In this case, remove the filter, wash it, carefully blow it and then replace it. In cases of serious wear, replace the filter;
2) condensation of the motor cylinder. This problem can cause freezing of the cylinder and a subsequent slowing in operation. To resolve the issue, run the pump for a couple of minutes after pouring 50 g of Vaseline oil, or another very runny oil, into the air input hole.
The slowing or blockage of the motor cylinder may be due to the formation of condensation inside. To resolve the issue, it is useful run the pump for a couple of minutes after pouring 50 g of Vaseline oil, or another very runny oil, into the air input hole.
The gun is broken or some of its internal seals are damaged. Damage causes the continuous distribution of grease and the continual functioning of the pump. We recommend purchasing a new gun or simply replacing the seal kit.
There may be 4 causes:
1) there is an issue of grease cavitation. We recommend raising the pneumatic pump off the drum and pouring 200-300 cc of SAE40 oil into the pick-up zone to eliminate the air suction;
2) the problem could be caused by a blocked pumping hose. In this case, remove and clean the base filter;
3) the pumping hose valve is damaged or obstructed by suction residue. Check the functionality and replace any malfunctioning parts as necessary;
4) the pumping group joints are worn, obstructed or damaged. In these cases, we recommend you remove the hose and pumping shaft, carefully check the various components and replace any that are worn.
Follow these two procedures:
1) the problem may be caused by the incorrect operation of the grease pressure diaphragm, which creates air bubbles in the grease (emulsion). We recommend raising the pneumatic pump off the drum and pouring 200-300 cc of SAE40 oil into the pick-up zone to eliminate the air suction;
2) the suctioned grease is too cold. Check that the hose and distribution gun are clean and fully functioning and check that the filters are clean;
3) the problem could be caused by a blocked pumping hose. In this case, remove and clean the base filter.
The A456 pressure inverter is probably incorrectly positioned. Remove the air input cap and check that it is in the correct place. Otherwise, use needle nose pliers to reposition them correctly. Finally check that the KR3305 double inverter group is intact and correctly positioned.
The problem could be caused by a blockage of solid residue in the valve group parts. Check and clean these.
Also check that the distribution hose is clean and not blocked, cleaning it and blowing its components.
This may be due to the following scenarios:
1) deterioration of the motor body seals;
2) deterioration of motor cylinder piston KC375;
3) deterioration of the motor cylinder air distributor KR9003.
In these cases, it is important to disassemble the parts in question to clean them or, if damage is identified, replace them.
Grease leaking from the silencer may be due to the deterioration of the seal pack on the lower seal group. Check its integrity and replace it if there is serious wear.
INDUSTRIAL PUMPS
The pump versions with PTFE seals are suitable for this kind of use.
Stainless steel pumps with Viton® seals are recommended.
Remove the quick hose holder where present and add the desired extension by choosing among those on page 112 of our catalogue, as well as bottom pick-up filter valve 10/20.
The seals on the upper pick-up body are worn: check them and replace them, following the procedure to disassemble the lower motor body.
Slowing is due to:
1) blockage of the air input and output filter (silencer) KR90058 and KR9003. In this case, you must disassemble the filters, wash them with detergent and carefully blow them with compressed air;
2) condensation inside the motor cylinder, which causes freezing. To solve the problem, carry out a forced lubrication of the motor cylinder as described in the manual.
The slowing or blockage of the motor cylinder may be due to the formation of condensation inside. To resolve the issue, it is useful run the pump for a couple of minutes after pouring 50 g of Vaseline oil, or another very runny oil, into the air input hole.
Part I123 of air distributor KR9003 is worn due to oxidation or the presence of condensation in the compressed air. We recommend replacing the KR9003 to restore correct item function.
The gun is broken or some of its internal seals are damaged. Damage causes the continuous distribution of grease and the continual functioning of the pump. We recommend purchasing a new gun or simply replacing the seal kit.
There may be 4 causes.
1) there is an issue of gre:se cavitation. We recommend raising the pneumatic pump off the drum and pouring 200-300 cc of SAE40 oil into the pick-up zone to eliminate the air suction;
2) the problem could be caused by a blocked pumping hose. In this case, remove and clean the base filter;
3) the pumping hose valve is damaged or obstructed by suction residue. Check the functionality and replace any malfunctioning parts as necessary;
4) the pumping group joints are worn, obstructed or damaged. In these cases, we recommend you remove the hose and pumping shaft, carefully check the various components and replace any that are worn.
We recommend that you carry out the following two procedures:
1) the filter and bottom pick-up valve could be blocked. Remove them and carefully clean them with compressed air;
2) the pumping piston seals are worn or compromised. In this case, you should remove the pick-up filter and suction piston and carefully wash them, replacing any damaged parts.
Follow these two procedures:
1) the problem may be caused by the incorrect operation of the grease pressure diaphragm, which creates air bubbles in the grease (emulsion). We recommend raising the pneumatic pump off the drum and pouring 200-300 cc of SAE40 oil into the pick-up zone to eliminate the air suction;
2) the suctioned grease is too cold. Check that the hose and distribution gun are clean and fully functioning and check that the filters are clean;
3) the problem could be caused by a blocked pumping hose. In this case, remove and clean the base filter.
The B168 pressure inverter is probably incorrectly positioned. Remove the air input cap and check that it is in the correct place. Otherwise, use needle nose pliers to reposition them correctly. Finally check that the KR9008 double inverter group is intact and correctly positioned.
The A456 pressure inverter probably cannot move correctly due to the incorrect positioning of one of the KR3305 plates. Remove the air input cap and check that the two plates of KR3305 are connected to A456 (refer to our spares spare parts). If the plates are not in position, use needle nose pliers to reposition them correctly.
The problem could be caused by a blockage of solid residues in the valve group parts. Check and clean these.
Also check that the distribution hose is clean and not blocked, cleaning it and blowing its components.
This may be due to the following scenarios:
1) deterioration of the motor body seals, in particular (where foreseen) the H038;
2) deterioration of the motor cylinder piston;
3) deterioration of the motor cylinder air distributor KR3306 (for 600 and 650 series pumps).
In these cases, it is important to disassemble the parts in question to clean them or, if damage is identified, replace them.
Leakage from the non-industrial pump may be caused by deterioration of the KR6203 seal pack. Check its integrity and replace it if there is serious wear.
The seal pack separating the pumping piston from the air piston is damaged or worn. Replace the seals and check the state of wear of the crankshaft.
RAM HOISTS
The pressure control panel on the shaft, usually positioned to the right, can also be mounted on the left, but we do not recommend this modification as the item has been designed according to certain parameters and moving it may require additional modifications on a technical level.
BRAKE BLEEDER DEVICE
If, during the bleeding phase, oil leaks from rapid connection KG007, we recommend you check the connection seals H075 and H059 for wear by unscrewing the protective ring nut.
The emulsion is due to the following problems:
1) there may be residual air in the brake liquid chamber or in connection tube KR1005; repeat the procedures to rest and bleed the air from the equipment as described in the manual;
2) the inner KR1006 diaphragm may be punctured. In this case, replace it to restore correct function.
This problem regarding the KG007 rapid connection can be resolved by carrying out two control and maintenance procedures:
1) remove the filter from rapid connection O001 and clean it carefully: any dirt can lead to distribution problems;
2) check that system pressure corresponds to that cited in the manual. Check the pressure gauges and S301 pressure regulator (where foreseen).
There are probably air leakages in the tank. Check the H199, H057 and H059 seals for wear; check that tap KG001 (where foreseen) functions correctly.
This type of brake bleeder cannot be used with LHM mineral oil because it damages the seals and diaphragm.
WASHING TANK
This could be because filter KC173 is blocked. Check its function after having cleaned and reassembled it.
This malfunction is due to the presence of dirt in the tank or because the liquid itself has not been changed. Remove the liquid using tap S201 or drainage valve KR3205. Then refill the tank with fresh liquid. Lastly, clean the bath’s mesh filters KC159, KC172 and KC173.
There could be two reasons:
1) if there is no liquid in the tank; in this case, just insert the pre-selected cleaning liquid;
2) if there is an incorrect air dose or if tap S508 is incorrectly positioned. In these cases, we recommend you to check the air connection, pressure regulator and flow regulator on bath pump group KR7003.

Do not use corrosive liquids or those with a flash point of less than 55 °C with this item, as these could compromise the painted surface and structure of the bath itself, as well as release toxic, harmful or inflammable vapours into the air. RAASM has no agreements with cleaning liquid brands, but recommends the use of specific products such as degreasers and non-aggressive detergents, compatible with the painted steel of the bath and the other device components.

The liquids permitted for cleaning the bath should not be corrosive or inflammable, so that they do not damage the painting or operation of the item. We recommend the use of degreasing liquids and detergents available on the market. Diesel can also be used, while petrol is absolutely not recommended; diesel is second-best though, while degreasers are preferable.