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Chicago Pneumatic CPS 750, Instruction Manual, Page: 28 / 94

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Chicago Pneumatic CPS 750 Instruction Manual Download Page 28

CPS 750

28

1310 3012 02

CPS

2.4.4

Continuous regulating system

The compressor is provided with a continuous regulating system and a blow-off valve (BOV) which is 
integrated in the unloader assembly (UA). The valve is closed during operation by outlet pressure of the 
compressor element and opens by air receiver pressure when the compressor is stopped.

When the air consumption increases, the air receiver pressure will decrease and vice versa. This receiver 
pressure variation is sensed by the regulating valve (RV) which, by means of control air to the unloader 
assembly (UA), matches the air output to the air consumption. The air receiver pressure is maintained 
between the pre-selected working pressure and the corresponding unloading pressure.

When starting the compressor, the throttle valve (TV) is kept closed via receiver pressure. The 
compressor element (CE) takes in air and pressure builds up in the receiver (AR). The throttle valve (TV) 
is closed. The air output is controlled from maximum output (100%) to no output (0%) by:

1

Speed control of the engine between maximum load speed and unloading speed (the output of a 
screw compressor is proportional to the rotating speed).

2

Air inlet throttling.

Summary of Contents for CPS 750

Page 1: ...Instruction Manual for Portable Compressors English CPS 750 ...

Page 2: ......

Page 3: ...Instruction Manual for Portable Compressors CPS 750 CHICAGO PNEUMATIC COMPRESSORS LLC Printed matter N 1310 3012 02 01 2009 ...

Page 4: ...manufacturer does not accept any liability for any damage arising for modifications additions or conversions made without the manufacturer s approval in writing Copyright 2008 Chicago Pneumatic Compressors LLC RockHill SC USA Any unauthorized use or copying of the contents or any part thereof is prohibited This applies in particular to trademarks model denominations part numbers and drawings ...

Page 5: ...26 2 4 3 Oil system 27 2 4 4 Continuous regulating system 28 2 5 Electric system 30 3 OPERATING INSTRUCTIONS 32 3 1 Parking towing and lifting instructions 32 3 1 1 Parking instructions 33 3 1 2 Towing instructions 34 3 1 3 Lifting instructions 35 3 2 Before starting 36 3 3 Starting Stopping 37 3 3 1 Control panel 38 3 3 2 During operation 39 3 3 3 Power ON OFF 40 3 3 4 Starting 41 3 3 5 Warming u...

Page 6: ...Activating a dry charged battery 65 4 13 3 Recharging a battery 65 4 13 4 Battery maintenance 65 5 ADJUSTMENTS AND SERVICING PROCEDURES 66 5 1 Adjustment of the continuous regulating system 66 5 2 Air filters engine compressor 67 5 2 1 Main parts 67 5 2 2 Cleaning the dust trap 68 5 2 3 Replacing the filter element and the safety cartridge 68 5 2 4 Air receiver 69 5 3 Fuel system 70 5 3 1 Fuel sys...

Page 7: ...TION 91 10 1 Parts subjected to Pressure Equipment Directive 97 23 EC cat II and above 91 10 2 Parts subjected to Simple Pressure Vessel Directive87 404 EC 91 10 3 Parts subjected to cat I and covered by the Machine Directive 89 392 EC 91 10 4 Parts subjected to art I paragraph 3 3 91 ...

Page 8: ...CPS 750 8 1310 3012 02 CPS ...

Page 9: ...nce providing the manual with up to date information Before handling any product take time to read the relevant instruction manual Besides giving detailed operating instructions it also gives specific information about safety preventive maintenance etc Keep the manual always at the unit location easy accessible to the operating personnel See also the safety precautions of the engine and possible o...

Page 10: ... The following list is a reminder of special safety directives and precautions mainly applicable to Chicago Pneumatic equipment These safety precautions apply to machinery processing or consuming air Processing of any other gas requires additional safety precautions typical to the application and are not included herein Neglecting the safety precautions may endanger people as well as environment a...

Page 11: ...ue care to ensure that they function properly They may not be put out of action 9 Care shall be taken to avoid damage to safety valves and other pressure relief devices especially to avoid plugging by paint oil coke or dirt accumulation which could interfere with the functioning of the device 10 Pressure and temperature gauges shall be checked regularly with regard to their accuracy They shall be ...

Page 12: ...ing vehicle of ample capacity Refer to the documentation of the towing vehicle 3 If the unit is to be backed up by the towing vehicle disengage the overrun brake mechanism if it is not an automatic mechanism 4 Never exceed the maximum towing speed of the unit mind the local regulations 5 Place the unit on level ground and apply the parking brake before disconnecting the unit from the towing vehicl...

Page 13: ...alve 6 No external force may be exerted on the air outlet valves e g by pulling on hoses or by installing auxiliary equipment directly to a valve e g a water separator a lubricator etc Do not step on the air outlet valves 7 Never move a unit when external lines or hoses are connected to the outlet valves to avoid damage to valves manifold and hoses 8 Do not use compressed air from any type of comp...

Page 14: ... noise shall be provided and a special warning to that effect shall be placed at each entrance 18 The unit has parts which may be accidentally touched by personnel of which the temperature can be in exess of 80 C 176 F The insulation or safety guard protecting these parts shall not be removed before the parts have cooled down to room temperature 19 Never operate the unit in surroundings where ther...

Page 15: ...are left in or on the machine Never leave rags or loose clothing near the engine air intake 7 Never use flammable solvents for cleaning fire risk 8 Take safety precautions against toxic vapours of cleaning liquids 9 Never use machine parts as a climbing aid 10 Observe scrupulous cleanliness during maintenance and repair Keep away dirt cover the parts and exposed openings with a clean cloth paper o...

Page 16: ... control and shutdown devices function correctly 1 6 Tool applications safety Apply the proper tool for each job With the knowledge of correct tool use and knowing the limitations of tools along with some common sense many accidents can be prevented Special service tools are available for specific jobs and should be used when recommended The use of these tools will save time and prevent damage to ...

Page 17: ...specified above and in accordance with the technical specifications Safety reasons prohibit any other applications 3 National legislation requirements with respect to re inspection must be complied with 4 No welding or heat treatment of any kind is permitted to those vessel walls which are exposed to pressure 5 The vessel is provided and may only be used with the required safety equipment such as ...

Page 18: ...r receiver pressure via the compressor element when the compressor is stopped When the air consumption increases the air receiver pressure will decrease and vice versa This receiver pressure variation is sensed by the regulating valve which by means of control air to the unloader and an electronic engine speed regulator matches the air output to the air consumption The air receiver pressure is mai...

Page 19: ...nd service operations The bodywork is internally lined with sound absorbing material Lifting eye A lifting eye is accessible when a small door at the top of the unit is unlocked Control panel The control panel grouping the air pressure gauge control switch etc is placed at the left hand rear end corner Data plate The compressor is furnished with a data plate showing the product code the unit seria...

Page 20: ...mineral compressor oil Chicago Pneumatic synthetic compressor oil Chicago Pneumatic mineral engine oil Manual Read the instruction manual before working on the battery Reset fuse On off button Prohibition to open air valves without connected hoses Rotation direction Inlet Outlet Compressor oil drain Read the instruction manual before starting ...

Page 21: ...of switch Do not run the compressor with open doors Lifting permitted Use diesel fuel only 5 75 bar 83 psi Tyre pressure Sound power level in accordance with Directive 2000 14 EEC expressed in dB A Read the instruction manual before lifting Service point Circuit breaker Horizontal towbar position required in case of coupling Max load toolbox ...

Page 22: ...ce Name A Alternator AFce Air Filter compressor element AFe Air Filter engine AFS Air Filter Sensor AOV Air Outlet Valves AR Air Receiver B Battery CB Circuit Breaker CE Compressor Element CP Control Panel CT Coolant Tank CU Control Unit DP Data Plate ...

Page 23: ...rpillar FFpc Fuel Prefilter Caterpillar FLG Fuel Level Gauge FPco Filler Plug oil compressor element FT Fuel Tank IC Intercooler JW Jockey wheel LLS Liquid Level Switch LV Loading Valve MPV Minimum Pressure Valve OC Oil Cooler OFce Oil Filter compressor element OFe Oil Filter engine OLG Oil Level Gauge R Radiator RPS Regulating Pressure Sensor RS Roadsignalisation RV Regulating Valve S Starting Mo...

Page 24: ... 4 Regulating system 2 4 1 Overview Reference Name AFce Air Filter compr element AFe Air Filter engine AFS Air Filter Sensor AOV Air Outlet Valves AR Air Receiver BN Breather Nozzle BOV Blow Off Valve BVof By pass Valve oil filter ...

Page 25: ... oil compressor element FR Flow Restrictor LV Loading Valve MPV Minimum Pressure Valve OC Oil Cooler OFce Oil Filter compressor element OLG Oil Level Gauge OS Oil Separator OSV Oil Stop Valve RPS Regulating Pressure Sensor RV Regulating Valve SL Scavenge Line SV Safety Valve TBV Thermostatic Bypass Valve TS Temperature Sensor TV Throttle Valve UA Unloader Assembly WPS Working Pressure Sensor Refer...

Page 26: ... the oil is removed from the air oil mixture the remaining oil is removed by the separator element The oil collects in the receiver and on the bottom of the separator element The air leaves the receiver via a minimum pressure valve MPV which prevents the receiver pressure from dropping below the minimum working pressure even when the air outlet valves are open specified in section 8 3 2 Limitation...

Page 27: ...otor lubrication cooling and sealing is injected through holes in the gallery Lubrication of the bearings is ensured by oil injected into the bearing housings The injected oil mixed with the compressed air leaves the compressor element and re enters the air receiver where it is separated from the air as described in section 2 4 2 Air flow The oil that collects in the bottom of the oil separator el...

Page 28: ...regulating valve RV which by means of control air to the unloader assembly UA matches the air output to the air consumption The air receiver pressure is maintained between the pre selected working pressure and the corresponding unloading pressure When starting the compressor the throttle valve TV is kept closed via receiver pressure The compressor element CE takes in air and pressure builds up in ...

Page 29: ...e corresponding unloading pressure Unloading pressure normal working pressure 1 bar 14 504 psi When the air consumption is resumed the blow off valve BOV closes and the throttle valve TV gradually opens the air intake and the electronic speed regulator increases the engine speed The construction of the regulating valve RV is such that any increase decrease of the air receiver pressure above the pr...

Page 30: ...c system Circuit diagram 9822 0937 15 S1 D G3 B B K0 M1 M K0 G2 G1 28 D1 R2 50A F2 15A F1 30 87 K1 R1 K2 J3 P3 9 J3 P3 7 N2 J3 P3 22 J3 P3 21 J3 P3 20 J3 P3 40 J3 P3 8 ECM 3 24 24M 24VDC 19 18 21 20 28 19 19 3 27M 24M 24M 24M 24 24 24 24 1 8 ...

Page 31: ...se 15A F2Fuse 100A G1Battery G2Battery G3Alternator K0Relay Starter motor K1Relay Aux Starter K2Relay Air inlet heater LS1Level Switch Coolant level LT1Level sensor capacitive Fuel level M1Starter motor N1Compressor Control Module N2Engine Control Module Caterpillar PS1Pressure Switch Airfilter PT1Pressure sensor Vessel Pressure PT2Pressure sensor Regulating Pressure R1Glow Plugs R2Resistor S1Emer...

Page 32: ...mpressor in to use check the brake system as described in section 5 5 1 Brake shoe adjustment After the first 100 km travel Check and retighten the wheel nuts and towbar bolts to the specified torque See section 8 1 Torque values Check the brake adjustment See section 5 5 1 Brake shoe adjustment When the engine is running the air outlet valves ball valves must always be put in fully opened or full...

Page 33: ...to support the compressor in a level position Place the compressor as level as possible however it can be operated temporarily in an out of level position not exceeding 15 If the compressor is parked on sloping ground immobilize the compressor by placing wheel chocks available as option in front of or behind the wheels ...

Page 34: ...sor with air hoses connected to the air outlet valves Before towing the compressor ensure that the towing equipment of the vehicle matches the towing eye or ball connector The towbar should be as level as possible and the compressor and towing eye end in a level position Before moving the compressor switch it off ...

Page 35: ...he compressor which must be placed level will be lifted vertically Keep lifting acceleration and retardation within safe limits Preferably use the lifting eye 1 after opening the small door 2 1 2 Lifting acceleration and retardation must be kept within safe limits max 2xg Helicopter lifting is not allowed Lifting is not allowed when the unit is running ...

Page 36: ...d by opening an air outlet valve 4 Check that the fuel tank contains sufficient fuel Top up if necessary Consult the Engine Operation Manual for the type of fuel 5 Drain any water and sediment from the fuel filters until clean fuel flows from the drain cock See section 5 3 2 Fuel system Prime 6 Empty the dust trap of each air filter AF See section 5 2 3 Replacing the filter element and the safety ...

Page 37: ... way when the control box is switched on This will cause memory loss Do not switch off the circuit breaker when the control box is switched on This will cause memory loss When the compressor is put in operation for the first time and after running out of fuel or changing the fuel filter follow the specific start procedure as described in section 5 3 2 Fuel system Prime ...

Page 38: ...02 CPS 3 3 1 Control panel Control panel Reference Name 1 Emergency stop 2 Display 2 rows 40 characters row 3 Pressure gauge 4 Fuel level gauge LOAD Load Noload button 0 Stop button I Start button ON OFF Power ON OFF switch ...

Page 39: ... the compressor element 3 Check the engine oil pressure the coolant temperature and all lamps for normal readings 4 Avoid the engine running out of fuel Nevertheless if this happens fill the fuel tank and prime the fuel system to speed up starting see section 5 3 2 Fuel system Prime The doors must be closed during operation and may be opened for short periods only When the engine is running the ai...

Page 40: ...rtain settings by pressing and holding the button 0 and pressing the button LOAD In this case the Options status is entered where the operator may change the following settings Language Pressure Units Metric Imperial Temperature Units Kelvin C F Flow Units Metric Imperial This is the first screen that will be displayed In this status it is not possible to start the compressor in any way Also Start...

Page 41: ...e following screen will be displayed At the end of each menu there is a Back and an Exit function except for the first menu which only has an Exit function Use the Back function to go to the previous menu Use the Exit function to close the Options menu and again enter the ready for start status Next is an example of a screen showing Back and Exit functions Switch off the machine by switching the O...

Page 42: ...tarting the air receiver pressure will be approx 2 bar 29 psi The engine will enter the warmup status before the compressor can be loaded If the button LOAD has been pressed during the warm up status the engine will first warm up before switching to load To cool down the starting motor the system will wait 1 minute max before undertaking the next attempt meanwhile do not leave the compressor Press...

Page 43: ...sure of approx 2 bar 29 psi The engine rpm is shown on the display The display will show 3 3 6 Loading By pressing the button LOAD the compressor will be loaded The pressure will rise till it reaches the setting If the button LOAD is pressed during the warm up process the engine will first warm up before automatically switching to load The setting of the regulating valve with shut valves should be...

Page 44: ...e display The status is indicated as UNLOAD when the valves are shut The status is indicated as LOAD when the valves are open The display will show or When there is no airflow for 30 minutes the compressor switches to NOLOAD For entering the load status the button LOAD has to be pressed 3 3 7 Stopping To turn off the compressor first press the button 0 The engine will run some time at min speed to...

Page 45: ...ressor will shut down immediately These parameters are Air discharge temperature too high Low coolant level Low fuel level Engine faults ENGINE FAULT INDICATION No communication engine system CAN LINK When the compressor is shut down because of exceeding a parameter setting e g compressor temperature the display shows Restarting before the parameter is within its limits is impossible because of th...

Page 46: ...chine By turning the emergency button the system is reset The display shows 3 3 10 Warnings A warning will be generated when Air filters The air filters need cleaning Fuel level There is fuel left for approx half an hour operating time The display will show These warnings do not shut down the compressor or prevent it from starting ...

Page 47: ...me keeping down time to a minimum Use of service paks Service Paks include all genuine parts needed for normal maintenance of both compressor and engine Service Paks minimize downtime and keep your maintenance budget low Order Service Paks at your local Chicago Pneumatic dealer 4 3 Service kits A service kit is a collection of parts to fit a specific repair or rebuilding task It guarantees that al...

Page 48: ...ctions Read the respective section before taking maintenance measures When servicing replace all disengaged packings e g gaskets O rings washers For engine maintenance refer to Engine Operation Manual The maintenance schedule has to be seen as a guideline for compressors operating in a dusty environment typical to compressor applications Maintenance schedule can be adapted depending on application...

Page 49: ...ck Adjust Check Adjust Check Adjust Safety valve Test Door hinges Grease Grease Towing eye shaft or ball coupling and its shaft Grease Grease Shut down switches Check Pressure drop over separator element 2 Measure Replace Fan V belts 3 Adjust Adjust Adjust Fuel tank Clean Clean Compressor oil Change Compressor oil filter 6 Replace Replace Coolant 5 8 Analyse Change Air filter element 1 Replace Eng...

Page 50: ...ic oil filters with by pass valve as specified in the parts list 7 Replace the fuel filters regularly Gummed or clogged filters mean fuel starvation and reduced engine performance The quality of the fuel determines the frequency of renewal 8 The following part numbers can be ordered from Chicago Pneumatic to check on inhibitors and freezing point 2913 0028 00 refractometer 2913 0029 00 pH meter Ke...

Page 51: ...ricant Compressor Engine between 25 C and 10 C GENOIL S between 10 C and 50 C GENOIL M GENOIL 15W40 Never mix synthetic with mineral oil Remark When changing from mineral to synthetic oil or the other way around you will need to do an extra rinse After doing the complete change procedure to synthetic oil run the unit for a few minutes to allow good and complete circulation of the synthetic oil The...

Page 52: ...stead of allowing them to clog your filter and accumulate in the valve rocker cover area GENOIL releases excess heat efficiently whilst maintaining excellent bore polish protection to limit oil consumption GENOIL has an excellent Total Base Number TBN retention and more alkalinity to control acid formation GENOIL prevents soot build up GENOIL is optimized for the latest low emission EURO 3 2 EPA T...

Page 53: ...essor Check engine oil level according to the instructions in the Engine Operation Manual and if necessary top up with oil 4 7 2 Check compressor oil level Check compressor oil level With the unit standing horizontal check the level of the compressor oil The pointer of the oil level gauge 1 must register in the upper extremity of the green range Add oil if necessary Before removing the oil filler ...

Page 54: ...commended to change the oil more frequently Oil filters In this case contact Chicago Pneumatic 1 Run the compressor until warm Close the outlet valve s 1 and stop the compressor Wait until the pressure is released through the automatic blow down valve Unscrew the oil filler plug 2 one turn This uncovers a vent hole which permits any pressure in the system to escape 2 Drain the compressor oil by re...

Page 55: ...em Reinstall and tighten the filler plug 2 6 Start the compressor and let it run unloaded for a few minutes 7 Stop the compressor wait a few minutes and top up with oil until the pointer of the oil level gauge is in the upper part of the green area Never add more oil Overfilling results in oil consumption 1 Stop the compressor and be sure that all pressure has been released by opening the filler p...

Page 56: ...ezing point that can occur in the area The difference must be at least 5 C 9 F If the coolant freezes it may crack the cylinder block radiator or coolant pump Consult the engine s operation manual and follow the manufacturer s directions Never remove the cooling system filler cap while coolant is hot The system may be under pressure Remove the cap slowly and only when coolant is at ambient tempera...

Page 57: ... flow through the engine coolant ducts and the radiator minimizing the risk for engine overheating and possible failure It reduces water pump seal wear and has excellent stability when subjected to sustained high operating temperatures GENCOOL EG is free of nitride and amines to protect your health and the environment Longer service life reduces the amount of coolant produced and needing disposal ...

Page 58: ...ncentration of EG In case a device is used to measure EG no PG can be measured afterwards as a result of the difference in the density More specific measurements can be done by the use of a refractometer This device can measure both EG and PG A mix of both products will be show unreliable results Mixed EG coolants with identical glycol type can be measured by use of a refractometer as well as the ...

Page 59: ... 9 5 the coolant should be replaced Glycol concentration measurement To optimise the unique engine protection features of the GENCOOL EG the concentration of the Glycol in the water should be always above 33 vol Mixtures with more than 68 vol mix ratio in water are not recommended as this will lead to high engine operating temperatures A refractometer can be ordered from Chicago Pneumatic with par...

Page 60: ...ean Check the condition of the coolant If the condition of the coolant is outside the limits the complete coolant should be replaced see section 4 11 3 Replacing the coolant Always top up with GENCOOL EG Concentrate GENCOOL EG Topping up the coolant with water only changes the concentration of additives and is therefore not allowed ...

Page 61: ...n 20 C 33 2 Refractometer indication 22 C 3 Refractometer indication 25 C 4 Refractometer indication 30 C 5 Refractometer indication 36 C 14 33 33 17 14 50 4 8 50 Total volume coolant Measured concentration In case of expansion tank at low level this quantity is to be filled without draining from the cooling system Liter Vol Liter GENCOOL EG Concentrate 4 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 ...

Page 62: ...fractometer indication 20 C 33 2 Refractometer indication 22 C 3 Refractometer indication 25 C 4 Refractometer indication 30 C 5 Refractometer indication 36 C 80 33 33 33 17 67 80 67 20 50 100 Total volume coolant Measured concentration In case of expansion tank at normal level this quantity is to be drained from the cooling system Liter Vol Liter GENCOOL EG Concentrate 4 8 12 16 20 24 28 32 36 40...

Page 63: ...ne the amount of GENCOOL EG required and pour into the radiator top tank It should be clearly understood that the risk for contamination is reduced in case of proper cleaning In case a certain content of other coolant remains in the system the coolant with the lowest properties influences the quality of the mixed coolant Fill To assure proper operation and the release of trapped air run the engine...

Page 64: ...13 2 Activating a dry charged battery The battery must be in operation within 2 months from being activated if not it needs to be recharged first 3 1 2 Remove any dirt from the coolers with a fibre brush Never use a wire brush or metal objects To avoid damaging the coolers angle between jet and coolers should be approx 90 do not use jet at max power Protect the electrical and controlling equipment...

Page 65: ...he compressor 4 13 3 Recharging a battery Before and after charging a battery always check the electrolyte level in each cell if required top up with distilled water only When charging batteries each cell must be open i e plugs and or cover removed Apply with preference the slow charging method and adjust the charge current according to the following rule of thumb Battery capacity in Ah divided by...

Page 66: ...nd decreased to lower it by turning the adjusting wheel clockwise and anti clockwise respectively To adjust the normal working pressure proceed as follows 1 Loosen the lock nut of the regulating valve 2 Release Regulating Valve turn out 3 Run the compressor in unload condition 4 With the outlet valves AOV closed adjust the regulating valve RV until a pressure is reached of nominal pressure 1 5 bar...

Page 67: ... 2 3 4 5 Reference Name 1 Snap clips 4x 2 Dust trap cover 3 Safety cartridge 4 Filter element 5 Filter housing 6 Vacuator valve The Chicago Pneumatic air filters are specially designed for the application The use of non genuine air filters may lead to severe damage of the engine and or compressor elements ...

Page 68: ...the filter element and the safety cartridge Air filter The instructions apply to one air filter and should be repeated for both air filters engine and air filters compressor 1 1 2 3 4 5 Step Action 1 Release the snap clips 1 and remove the dust trap cover 2 Clean the inside of the cover 2 Withdraw the filter element 4 and safety cartridge 3 from the housing 5 ...

Page 69: ... the filter element when damaged A dirty safety cartridge 3 is an indication of a malfunctioning filter element Replace the filter element and the safety cartridge at the same time New elements should be inspected for tears and punctures before installation The safety cartridge cannot be cleaned 3 Reassemble in reverse order of dismantling 4 Inspect and tighten all air intake connections Step Acti...

Page 70: ...CPS 750 70 1310 3012 02 CPS 5 3 Fuel system 5 3 1 Fuel system Drain Fuel filter Fuel Pre filter 1 2 Step Action 1 Open bowl drain valve 1 operate pump 2 and pump water out 2 Close drain valve 1 ...

Page 71: ...the fuel prefilter Operate the hand pump 2 at the prefilter until fuel comes out of the bore for the vent screw and air is completely removed from the fuel system Fasten the vent screw 1 Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire To help prevent possible injury turn the ON OFF switch in position OFF when changing fuel filters or water separator elements Clea...

Page 72: ... perform a brief selftest See section 3 3 3 Power ON OFF Push the start button and the starter motor will automatically try to start the engine see section 3 3 4 Starting The starter motor will set the engine in motion Run the engine a few minutes at no load to warm up see section 3 3 5 Warming up ...

Page 73: ...hand 7 Open head vent 3 and operate pump 4 Close vent when fuel begins to purge 8 Check for leaks retighten if necessary Step Action 1 Remove the fuel filter 5 e g by means of a special tool Catch the fuel in a drain pan 2 Clean the filter seat on the manifold taking care that no dirt drops into the system Apply film of gas oil to the gasket of the new filter element Screw it into place until the ...

Page 74: ...a year This can be done by screwing the cap of the valve anti clockwise A check of the set pressure once a year according to the local regulations This check cannot be done on the compressor and must be carried out on a proper test bench All adjustments or repairs are to be done by an authorized representative of the valve supplier ...

Page 75: ...one on each wheel Check the thickness of the brake lining After inspection and or replacement re insert both plugs 3 Before jacking up the compressor connect it to a towing vehicle or attach a weight of minimum 50 kg 110 lb to the towbar 1 2 3 When the brake lining has been worn to a minimum thickness the brake shoes have to be replaced Min thickness brake lining 1 mm 0 039 in 4 5 5 ...

Page 76: ... 1 clockwise with a wrench till the wheel locks up Center the brake shoes by actuating the parking brake several times 4 Turn the adjusting bolt 1 anti clockwise until the wheel is running free in the direction of travel approx 1 full turn of the adjusting bolt 5 Check the position of the equalizer 4 with the parking brake actuated Perpendicular position of equalizer identical clearance of wheel b...

Page 77: ...ve Dismantle and inspect parts Blow down valve stuck in open position Check and correct as necessary Loading valve LV leaking past O ring With compressor running at max load speed disconnect hose leading to unloader If air leaks from the hose remove and inspect loading valve Replace damaged or worn O rings Oil separator element clogged Have element removed and inspected by an Chicago Pneumatic Ser...

Page 78: ... the short screws then release the spring tension unscrewing the long ones Minimum pressure valve malfunctioning Remove and inspect valve Blow off valve malfunctioning Remove and inspect valve Possible faults Corrective actions Engine oil pressure too low Refer to the engine instruction manual Compressor or engine overheating See corrective actions Compressor overheating Fuel tank contains insuffi...

Page 79: ...sor cooling Locate compressor away from walls when banked with other compressors leave space between them Oil cooler clogged externally Clean oil cooler Refer to section 4 12 Cleaning coolers Oil cooler clogged internally Consult Chicago Pneumatic Oil filters clogged Replace oil filters Oil level too low Check oil level Top up with recommended oil if necessary Thermostatic by pass valve remains st...

Page 80: ...er heater The installation works on battery voltage and comes together with a timer function A 5000 Watt heater will heat up the engine coolant by means of consuming the onboard fuel fuel consumption 0 62 l h in operation water pump capacity 900 l h The undercarriage is adapted due to the increased weight ARCTIC cold start package 25 C to 30 C OTM only The ARCTIC cold weather package is a combinat...

Page 81: ...et shutdown provides protection to the diesel engine against over speeding caused by failure of the engine regulator burning oil from the engine sump due to overfilling or aspiration of combustible fumes in hazardous environments The inlet shutdown system is fully electronic Refinery package The refinery package is a combination of the Spark arrestor and Inlet shutdown options Customer colour cano...

Page 82: ...ations at assembly of the compressor For hexagon screws and nuts with strength grade 8 8 For hexagon screws and nuts with strength grade 12 9 Thread size Torque value Nm Torque value lbf ft M6 9 6 64 M8 23 16 97 M10 46 34 69 M12 80 59 04 M14 125 92 25 M16 205 151 29 Thread size Torque value Nm Torque value lbf ft M6 15 11 07 M8 39 28 78 M10 78 57 56 M12 135 99 63 M14 210 154 98 M16 345 254 61 ...

Page 83: ...5 Bolts towing eye towbar 80 90 59 66 Bolts lifting eye beams 205 20 151 29 15 Bolts engine drive housing M12 80 10 59 7 Bolts engine drive housing M16 205 10 151 29 7 Bolts engine drive housing M8 23 10 17 7 Bolts compressor element drive housing 80 5 59 4 Safety switches 35 5 26 4 Joints of adjustable towbar M24 250 350 185 258 M32 350 400 258 295 Secure the drain cock and tank cap of the fuel t...

Page 84: ...he canopy Designation CPS 750 Engine oil pressure bar e 2 psi 29 Engine coolant temperature C 112 F 234 Compressor temperature C 120 F 248 Safety valve opening pressure EC type bar e 13 5 psi 196 Safety valve opening pressure ASME type bar e 14 1 psi 205 Designation CPS 750 Absolute inlet pressure bar e 1 psi 14 5 Relative air humidity 0 Air inlet temperature C 20 F 68 Nominal effective working pr...

Page 85: ...ve receiver pressure bar e 4 psi 58 Maximum effective receiver pressure compressor unloaded bar e 8 4 psi 122 Maximum ambient temperature at sea level C 50 F 122 Minimum starting temperature C 10 F 14 Minimum starting temperature with coldstart equipment C 25 F 13 Altitude capability see curve ...

Page 86: ...CPS 750 86 1310 3012 02 CPS ...

Page 87: ...essed air mg m3 5 dram cu ft 8 x 10 6 Engine oil consumption maximum g h 77 4 oz h 2 7 Compressed air temperature at outlet valve C 85 F 185 Noise level Sound pressure level LP measured according to EPA under free field conditions at 7 m distance dB A 76 Sound pressure level LP measured according to ISO 2151 under free field conditions at 7 m distance dB A Sound power level LW complies with 84 533...

Page 88: ...t Liquid Number of cylinders 6 Bore mm 105 in 4 13 Stroke mm 127 in 4 95 Swept volume l 6 6 US gal 1 74 Imp gal 1 45 cu in 403 Output according to SAE J1995 at normal shaft speed kW 146 hp 195 8 Load factor 80 Capacity of oil system Initial fill l 26 US gal 6 9 Imp gal 5 7 cu ft 0 9 Refill max 1 l 25 US gal 6 6 Imp gal 5 5 cu ft 0 9 Capacity of cooling system l 34 US gal 9 Imp gal 7 5 cu ft 1 2 ...

Page 89: ...apacity of compressor oil system l 49 US gal 12 9 Imp gal 10 8 cu ft 1 7 Net capacity of air receiver l 63 5 US gal 16 8 Imp gal 14 cu ft 2 2 Capacity of fuel tanks l 289 US gal 76 3 Imp gal 63 6 cu ft 10 1 Air volume at inlet grating approx 1 m3 s 5 1 cfm 1 08 x 104 Designation CPS 750 Length mm 5235 in 204 2 Width mm 1951 in 76 1 Height mm 1840 in 71 8 Weight ready to operate See indication on d...

Page 90: ...CPS 750 90 1310 3012 02 CPS 9 Dataplate ...

Page 91: ...overed by the Machine Directive 89 392 EC All other parts 10 4 Parts subjected to art I paragraph 3 3 All other parts Designation CPS 750 Set pressure EC type bar e 13 5 psi 196 Set pressure ASME type bar e 14 1 psi 205 Design temperature C 130 F 266 CPS 750 Standard Cold start equipment Design pressure bar e 18 18 psi 261 261 Design temperature max C 130 130 F 266 266 Design temperature min C 10 ...

Page 92: ...CPS 750 92 1310 3012 02 CPS ...

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