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DANGER 

 

2.3.3 Safety valves

 

The safety valves prevent damage to the compressor by overpressure and are factory set at the 
following pressures: 

1st stage: 113 psi (8 bar)  

2nd stage: 725 psi (50 bar)       3rd stage: 5000 psi (340 bar). 

In case a safety valve blows, do not adjust to a higher pressure but check for the cause. Refer to 
section 5. 

Adjustment of the safety valves, by non-authorized persons, may result in the loss of the 
warranty and may result in serious injury or death. 

 

2.3.4 Cooling, lubrication

 

The 1st and 2nd stage intercoolers and the after cooler consist of steel pipes and are smooth. The 
splash lubrication operates with oil thrower pins. The high-pressure stage is lubricated by oil vapors. 

 

2.3.5 Pressure holding valve

 

This valve is mounted after the carbon filter. 

Working Procedure 

This valve will only open when the internal pressure of the compressor has reached 1800PSI ±300 PSI 
(80 ±20 bar) to permit a constant and optimum separation. 

 

2.4 Base Frame, Protective Frame, Covers

 

Depending on the specifications of the buyer, the compressor rests on a base frame consisting of 
welded section steel with an additional frame bracket for the mounting of electric motors or it is further 
equipped with an allover protecting frame. This frame is also made of section steel and its entire 
surface is painted to make it weather and corrosion-resistant. 

The flywheel of the compressor, in the basic version, is covered by a steel cover or a grid, both being 
designed with a view to safety and optimum air guidance. 

The front panel incorporates 2 filling valves, final stage pressure gauges and the side panel 
incorporates the condensate drain manifold for the manual draining of the filters (special frame version 
mod. compact). 

 

 

 

 

 

 

 

 

WARNING 

 

3. Safety Precautions for The Filling of Cylinders 

 

3.1 General Precautions for the filling of cylinders 

Take care that the intake air is pure and free from noxious gases and exhaust fumes. 

Make use of the intake hose and secure it in such a way as to ensure that no engine exhaust fumes are 
taken in. 

Page 4 of 22

Summary of Contents for 90 PBAC

Page 1: ...vice max air com Max Air is a registered trademark with the U S patent office copyright 2006 This manual cannot be reproduced without the express written permission of Max Air WARNING DO NOT USE WITH...

Page 2: ...lling compressor you are now a filling station You must follow all local state and federal regulations Prior to filling a cylinder check the pressure rating and current hydro date stamped on cylinder...

Page 3: ...e year from purchase date Weight 276 lbs 125kg w 9 HP Honda engine Dimensions 42 L x 20 W x 28 5 H MAX AIR 90 9 0cfm TECHNICAL DESCRIPTION Model Approx output MAX AIR 90 260 L min 9 0cfm Drive motors...

Page 4: ...small particles of lubricating oil This condensate is a milky fluid and precipitates in the separators 2 3 Technical details of the compressor Block 2 3 1 Crankcase crankshaft piston cylinder The cran...

Page 5: ...and optimum separation 2 4 Base Frame Protective Frame Covers Depending on the specifications of the buyer the compressor rests on a base frame consisting of welded section steel with an additional f...

Page 6: ...or disconnect at the power source prior to any work Never weld high pressure tubing Never empty air cylinders completely The closed cylinder should always contain some residual pressure in order to av...

Page 7: ...set pressure relief blow off on the final stage is usually 10 above the cylinder rated pressure Example if you are filling a 3000 psi rated cylinder you should close the fill valve or shut off the com...

Page 8: ...with fresh oil at least once a year 4 7 Maintenance and air tightness test Besides the standard stipulated service works 4 8 we recommend you clean the compressor at regular intervals to notice any o...

Page 9: ...e sure that the holding spring on top is installed properly Only use original cartridges 4 8 5 Condensate drain system Condensate water oil vapors emulsion The color of this emulsion should be milky w...

Page 10: ...be carefully treated to prevent even the slightest damage Use only gasoline soft brushes of copper or nylon Do not use steel brushes screwdrivers etc Should you detect even the smallest damage rupture...

Page 11: ...ty valves must be replaced as complete parts 4 9 1 Cylinders When removing and replacing cylinders note that the piston is in the top position must be on the same level with the cylinder top edge Corr...

Page 12: ...w thread max hex screw M 6 1 0 kpm 7 ft lbs inner hex Screw hex screw M 8 2 5 kpm 18 ft lbs inner hex Screw hex screw M 10 4 5 kpm 32 ft lbs inner hex screw Valve head screw requires torque wrench tig...

Page 13: ...rrect Blocked cooling tubes or Tighten or replace gaskets leaking Check brush with soap replace Intake filter blocked Replace Intake hose bent Readjust Worn pistons or rings Replace Oil taste in deliv...

Page 14: ...elief valve factory preset to customer requirement 11 Front bearing cover 22 Check valve INSIDE upper separator 12 Fan wheel 23 Oil fill vent cap screw 13 Oil filler cap 24 Oil level indicator behind...

Page 15: ...n fold back flat prior to screw down housing cap C Read and remove tape c D Remove snap out plastic plug under tape E Remove plastic plug make sure internal O ring is present and lubricated use silico...

Page 16: ...H E Close up view of plastic plug E at bottom of cartridge B C D I J F G B C D E K H 27 x 2 dia E A Sealed Foil envelope not shown Part Number LF 65247 35 000 cft 72o F 5000psi Page 15 of 22...

Page 17: ...d for any sign of moisture F Warning label read and understand this and any labels on the filter G Molecular sieve beige beads removes humidity H Hopcalite catalyst converts trace amounts of carbon mo...

Page 18: ...14 1 4 x 1 3 4 dia A C E G I B D F H J Part Number LF 1002 10 000 cft 72o F 5000psi NOTE Dimensions exclude threaded plastic nipple w O ring Page 17 of 22...

Page 19: ...s USAGE The detection disc is specially treated to prolong its life A color change from tan to dark grey will occur in the presence of carbon monoxide The rate if change of color is directly related t...

Page 20: ...ly 4 Install window 3 with smooth small diameter against O ring 4 5 Insure window 3 is fully against shoulder of cap 2 6 Avoid spring or other hard objects touching window 7 Install so both elements c...

Page 21: ...ING BLUE Page 20 of 22 Remove top half of element housing and invert Place the blue moisture indicator down inside element against the glass taking care not to touch the blue element with your fingers...

Page 22: ...be carried out in compliance with the instructions contained in this manual Should the required work not be covered by the manual or assistance be required you are advised to contact Max Air directly...

Page 23: ..._______ _________________________________________________________________________________ _________________________________________________________________________________ ____________________________...

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