background image

USER MANUAL

ULTRA-LIGHT DUTY ONBOARD AIR SYSTEM

TROUBLESHOOTING GUIDE:

Tank pressure drops when 

compressor (s) shut off

1. Loose drain cock

2. Check valve leaking

3. Loose connections

1. Tighten drain cock

2. Replace check valve 

    or compressor(s)

3. Check all connections with

  soap and water solution 

  and tighten

Compressor runs continuously 

and air flow lower than normal

1. Excessive air usage

2. Loose connections

3. Worn piston ring or 

    inlet valve

4. Clogged air filter element 

1. Decrease air usage

2. Check all connections with

  soap and water solution 

  and tighten

3. Repair or replace compressor

4. Replace air filter element 

Compressor runs continuously 

causing safety valve (if equipped) 

to open

1. Bad pressure switch

2. Defective safety valve

1. Replace pressure switch

2. Replace safety valve

Excessive moisture in discharge 1. Excessive water in air tank

2. High humidity

1. Drain tank, tilt tank to drain

    Drain tank more frequently

2. Move compressor to area

    with less humidity, or use air

     line filter

Compressor will not run

1. No power, or  power switch

  in OFF position

2. Blown fuse

3. Motor overheats

4. Faulty pressure switch 

1. Make sure compressor

  switch is ON   

2. Disconnect compressors

  from power source, replace      

  fuse  (Refer to Specifications    

  section for correct fuse  

  amperage)

3. Let compressors cool off for

  about 30 Minutes to allow     

  thermal overload switch reset

4. Replace pressure switch

Thermal

overload protector cuts out 

repeatedly

1. Lack of proper ventilation or

 ambient temperature too high

2. Compressor valves failed

1. Move compressor to well

  ventilated area, or area with   

  lower ambient temperature

2. Repair or replace compressor

Excessive 

knocking or rattling

1. Loose mounting bolts

2. Worn bearing on eccentric or

  motor shaft

3. Cylinder or piston ring is worn

1. Tighten mounting bolts

2. Repair or replace

  compressor

3. Repair or replace

  compressor 

CAUTION:  NEVER DISASSEMBLE COMPRESSOR WHILE 

COMPRESSOR IS PRESSURIZED.

POSSIBLE CAUSE(S) 

PROBLEM

CORRECTIVE ACTION 

Summary of Contents for 10000

Page 1: ......

Page 2: ...ns the parts needed for specific areas of installation and may contain smaller bags within each package for specific uses PARTS PACKAGES USER MANUAL ULTRA LIGHT DUTY ONBOARD AIR SYSTEM Package 1 Pressure Switch Relay A Pressure Switch 85 PSI on 105 PSI off 1pc B 40 amp relay 1pc REDUCER A O Package 2 Fittings C 1 4 NPT Drain Cock 1pc D 1 4 NPT 145 PSI Safety Valve 1pc E 1 4 NPT Compression Fitting...

Page 3: ... with a wrench Do not over tighten if your port fittings are made from brass since brass threads can be stripped Always release air from tank before servicing WARNING FAILURE TO DRAIN TANK AND REMOVE CONDENSATION WILL CAUSE TANK TO RUST PREMATURELY To remove accumulated condensation inside the tank bleed pressure from tank until pressure is approximately 5 PSI to 20 PSI using drain cock Drain wate...

Page 4: ...is 10 11 ft lbs 98C Compressor Wiring See Figure 3 on back of manual 1 Disconnect ground cable from vehicle s battery 2 Temporarily position the air compressor in the location where it will be mounted 3 Route ground wire to the negative post of the battery or to an appropriate grounding point and cut ground wire to length as needed 4 Mount the 98C air compressor with the two 13 64 5 mm bolts nuts ...

Page 5: ...et port of the tank to keep moisture from being able to seep back to the tank PRESSURE SWITCH WITH RELAY INSTALLATION Your VIAIR Ultra Light Duty Onboard Air System comes complete with a pressure switch and a 40 amp relay that will turn on the compressor at 80 PSI and off at 105 PSI The pressure switch has a 1 8 NPT inlet at the bottom that will need to be installed into the 1 8 NPT port of the T ...

Page 6: ...Y CYCLE Duty cycle refers to the amount of time a compressor can beoperated in a given time period at 100 PSI and a standard ambient temperature of 72 F It is commonly expressed in percentage format Compressor on time on time off time Duty Cycle ONE HOUR DUTY CYCLE MINUTES ON 100 PSI 72 F MINUTES OFF 9 5 Min On 55 Min Off 10 6 Min On 54 Min Off 15 9 Min On 51 Min Off 20 12 Min On 48 Min Off 25 15 ...

Page 7: ...lt tank to drain Drain tank more frequently 2 Move compressor to area with less humidity or use air line filter Compressor will not run 1 No power or power switch in OFF position 2 Blown fuse 3 Motor overheats 4 Faulty pressure switch 1 Make sure compressor switch is ON 2 Disconnect compressors from power source replace fuse Refer to Specifications section for correct fuse amperage 3 Let compresso...

Page 8: ... of the Manual shall be used reproduced translated converted adapted stored in a retrieval system communicated or transmitted by any means for any commercial purpose including without limitation sale resale license rental or lease without the prior express written consent of VIAIR VIAIR does not make any representations warranties or guarantees express or implied as to the accuracy or completeness...

Reviews: