Sullair DLQ185AC User Manual
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Sullair DLQ185AC User Manual

Caterpillar portable air compressor
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Portable Air Compressor
SAFETY WARNING
Users are required to read the
entire User Manual before han-
dling or using the product.
USER MANUAL
DLQ185AC & DPQ185AC
Caterpillar
WARRANTY NOTICE
Failure to follow the instructions
and procedures in this manual,
or misuse of this equipment, will
void its warranty.
Subject to EAR, ECCN EAR99 and related export control restrictions.
PART NUMBER:
1001-3174 R00
The information in this manual is current as of its
publication date and applies to compressor models
indicated on this cover with serial number:
CN0122020400
and all subsequent serial numbers.
Publication date: 09/09/2022
Copyright © 2022 Sullair, LLC. All rights reserved.

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  • Page 1 Publication date: 09/09/2022 void its warranty. Copyright © 2022 Sullair, LLC. All rights reserved. Subject to EAR, ECCN EAR99 and related export control restrictions.
  • Page 2 We appreciate that you have both purchased and are utiliz- ing this portable screw compressor made by Suzhou Sullair Air Equipment Co., Ltd The various types of portable screw compressors made by. and Suzhou Sullair Air Equipment Co., Ltd. (hereinafter “Sullair”) are expected to work to your satisfaction.
  • Page 3 Sullair, then product warranty may be voided. This manual does not include illustrated parts list. If you need to order parts from Sullair, please see Parts List ( 1001-3175). It is important to note that the actual condition of product may differ from the one described in this manual because Sullair upgrades and continuously improves its design.
  • Page 4 SAFETY PRECAUTIONS Read carefully before operating the compressor ▲ WARNING Compressed air and air compression system are dangerous! Failure to follow the instructions, procedures and safety precautions in this manual may result in accidents and injuries to you or others! Read this manual carefully and make sure you fully understand every part of this manual before operating and servicing the compressor! The user is responsible for appropriate care for the machine!

  • Page 5: Table Of Contents

    185 Series Diesel Portable Screw Compressor User Manual Table of Contents Table of Contents Section 1: Safety.......................9 General....................... 9 Personal protective equipment ..............9 Pressure release ..................9 Fire and explosion ..................10 Moving parts ..................... 11 Hot surfaces, sharp edges and sharp corners.......... 12 Toxic and irritating substances ..............
  • Page 6 Table of Contents 185 Series Diesel Portable Screw Compressor User Manual 2.11 Wiring diagram..................40 2.12 Electrical system, functional description ........... 41 2.13 Protection system ..................41 2.14 Engine fuel system..................41 2.15 Engine exhaust system................42 2.16 Frame system ................... 42 2.17 Enclosure system..................
  • Page 7 Noise emissions warranty................. 69 Tampering with the noise control system is prohibited......69 Noise emissions maintenance and maintenance record log ....70 Section 7: Appendix ....................73 Sullair Australia Warranty Policy (A.C.N. No. 006732332)....... 73 7.1.1 Scope........................73 7.1.2 Establishment of bonafides..................73 7.1.3...
  • Page 8 Table of Contents 185 Series Diesel Portable Screw Compressor User Manual Notes: 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.

  • Page 9: Section 1: Safety

    1.1 General and/or personal hearing protective equipment. Sullair designs and manufactures all of its products so they can be operated safely. However, the responsibility for safe 1.3 Pressure release operation rests with those who use and maintain these prod- ucts.

  • Page 10: Fire And Explosion

    1: Safety 185 Series Diesel Portable Screw Compressor User Manual F. Flow-limiting valves are listed by pipe size and rated R. The ethyl ether in the replaceable cylinders used in CFM. Select appropriate valve accordingly. diesel ether starting aid systems (optional) is under pressure.

  • Page 11: Moving Parts

    185 Series Diesel Portable Screw Compressor User Manual 1: Safety E. Disconnect and lock out all power at source prior to P. DO NOT attempt to use ether as a starting aid in gas- attempting any repairs or cleaning of the compressor oline engines or diesel engines with glow plugs as or of the inside of the enclosure, if any.

  • Page 12: Hot Surfaces, Sharp Edges And Sharp Corners

    1: Safety 185 Series Diesel Portable Screw Compressor User Manual C. Wear snug-fitting clothing and confine long hair when Standards 29 CFR 1920 and any other Federal, State working around this compressor, especially when or Local codes or regulations. exposed to hot or moving parts. DANGER D.

  • Page 13: Electrical Shock

    185 Series Diesel Portable Screw Compressor User Manual 1: Safety valve or atomizer tube of ether starting aid system B. Inspect lifting bail and points of attachment for pointed away from yourself and other personnel. cracked welds and for cracked, bent, corroded or otherwise degraded members and for loose bolts or J.

  • Page 14: Jump Starting

    1: Safety 185 Series Diesel Portable Screw Compressor User Manual trical or other energy source, would cause personal injury 8. Release stored energy and bring the equip- or equipment damage. The power source on any ment to a “zero mechanical state”. machine shall be locked out by each employee doing the 9.
  • Page 15 185 Series Diesel Portable Screw Compressor User Manual 1: Safety D. Remove all vent caps (if so equipped) from the bat- ing vehicle is provided with two (2) 12V batteries con- tery or batteries in the compressor. DO NOT permit nected in series, connect the jumper cable to the dirt or foreign matter to enter the open cells.

  • Page 16: Towing1

    1: Safety 185 Series Diesel Portable Screw Compressor User Manual 1.13 Towing the front of drawbar before passing them through points of attachment on towing vehicle to support the front of drawbar in case it should accidentally 1.13.1 Preparing to tow become uncoupled.

  • Page 17: Towing

    185 Series Diesel Portable Screw Compressor User Manual 1: Safety for stowing away the wheeled jack as you would for B. Remember that the portable air compressor may the standard screw jack. Pull the pin connecting the approach or exceed the weight of the towing vehicle. jack to the drawbar and raise the screw jack to its full Maintain increased stopping distances accordingly.

  • Page 18: Fluid Containment

    1: Safety 185 Series Diesel Portable Screw Compressor User Manual G. If provided, unhook chains and remove them from tainment frame, if equipped, and could mix with residual the points of chain attachment on the towing vehicle, spilled fluids. This containment fluid should be cleaned then hook chains to bail on drawbar or wrap chains out periodically so that it does not overfill the containment around the drawbar and hook them to themselves to...

  • Page 19: Symbols And References

    185 Series Diesel Portable Screw Compressor User Manual 1: Safety 1.16 Symbols and references The symbols below may or may not be used. Please refer to the decals set forth on the machine for applicable sym- bols. DIESEL FUEL HEARING PROTECTION ROTARY COMPRESSOR HARD HAT TEST RUN...
  • Page 20 1: Safety 185 Series Diesel Portable Screw Compressor User Manual ENGINE START DANGEROUS OUTLET ENGINE ECM REMOTELY CONTROLLED READ/WRITE DATA CORROSIVE INTAKE AIR EXHAUST GAS WARNING FAN GUARD DO NOT MAINTENANCE BELT GUARD BELOW TEMPERATURE DO NOT TOW SERVICE POINT BAR/PSI LOW TEMPERATURE BATTERY...
  • Page 21 185 Series Diesel Portable Screw Compressor User Manual 1: Safety RADIATOR HOUR METER COMPRESSOR AIR AIR-CIRCULATING PRESSURE START AIR-COOLED OIL COOLER CONTROL LIQUID-COOLED OIL COOLER ENGINE PREHEAT LOW TEMP AID LUBRICATION ENGINE WARNING TRAILER TOWING MODE FUEL LEVEL AXLE ENGINE RPM LUBRICANT GREASE ENGINE OIL EXAMINE, CHECK...
  • Page 22 1: Safety 185 Series Diesel Portable Screw Compressor User Manual DO NOT OPERATE WATER DRAIN WHILE STACKED PRESSURIZED SPRING SEVER (FAN) DO NOT MIX FLUIDS DEF FLUID ONLY AUTO START/STOP FLUID DRAIN LOW FUEL HEST: HIGH EMISSIONS DPF: DIESEL SYSTEM TEMPERATURE PARTICULATE FILTER EMISSIONS DPF REGEN.

  • Page 23: Section 2: Description

    This series of diesel engine driven portable screw com- impacting on the surrounding environment. pressor designed and manufactured by Sullair will pro- vide you with improved performance, high reliability and The compressor is driven by the output shaft of the diesel greatly reduced maintenance.
  • Page 24 4. Compressor discharge system 10. Fuel system 5. Engine exhaust system 11. Frame system 6. Cooler and lubricant system 12. Assembly cooler system Figure 2-1: General layout of DLQ185AC 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.
  • Page 25 185 Series Diesel Portable Screw Compressor User Manual 2: Description 1. Compressor and engine system 7. Pneumatic control system 2. Compressor air inlet system 8. Electronic control system 3. Engine air inlet system 9. Canopy system 4. Compressor discharge system 10.

  • Page 26: Engine And Compressor System

    Compared to other compressors, the Figure 2-3 on page 26 consists of the air end, diesel Sullair air end is unique in mechanical reliability and engine, elastomer coupling, cooling fan, cylinder, isolator, durability design. With its working parts meeting the engine support, etc.

  • Page 27: Air Inlet System

    185 Series Diesel Portable Screw Compressor User Manual 2: Description 2.4 Air inlet system fitted within the main filter element which adds a second level of protection. The Safety filter element does not See Figure 2-4 on page 27. The inlet system provides need maintenance and should be replaced together with clean air to the compressor and diesel engine.

  • Page 28: Compressor Cooling & Lubrication System, Functional Description

    2: Description 185 Series Diesel Portable Screw Compressor User Manual 2.5 Compressor cooling & When the temperature reaches 69°C (156°F), the ther- mal valve element starts to work by partly closing the lubrication system, functional bypass port. Some of the fluid flows to the fluid cooler description and the remainder bypasses it to try maintain a steady The cooling and lubrication system of the compressor...
  • Page 29 185 Series Diesel Portable Screw Compressor User Manual 2: Description The engine has two cooling systems, fluid cooling and air fore erosion on pump impeller and case. This ensures intercooling. The fluid cooling circuit is controlled via a stable coolant flow and removes heat from the engine. thermostatic valve which maintains the engine tempera- Use long-life antifreeze &...

  • Page 30: Compressor Discharge System, Functional Description

    2: Description 185 Series Diesel Portable Screw Compressor User Manual 2.6 Compressor discharge system, trifugal effect and forms larger fluid droplets. Fluid drop- lets fall to the bottom of the sump under the effect of functional description gravity. Baffles and isolation panels inside the separator The discharge system consists of the air/oil separator, make the air and fluid droplets spin and change direction, separator element, min pressure valve, relief valve, ball...

  • Page 31: Capacity Control System, Functional Description

    A min pressure valve is positioned between the fluid/air Normally the control system should not be adjusted. If separator and air service valve to establish a minimum adjustment is necessary, written approval from Sullair tank pressure when the compressor unit is operating, this shall be obtained.
  • Page 32 2: Description 185 Series Diesel Portable Screw Compressor User Manual If the compressed air is not needed or the air supply Shutdown valve is closed, the pressure regulation valve will be fully Close all air service valves, set the Start/Run/Stop switch opened and the inlet control valve will be fully closed and to “Stop”, the unit will enter its automatic shutdown cycle.
  • Page 33 185 Series Diesel Portable Screw Compressor User Manual 2: Description Notes: 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.

  • Page 34: Piping And Instrumentation-Compressor System

    2.8 Piping and instrumentation—compressor system 88292050-112 R02 (sh1)
  • Page 35 2.8 Piping and instrumentation—compressor system Key Description Key Description FILTER, AIR VALVE, BLOWDOWN N.C. GAUGE, FILTER RESTRICTION (OPTONAL) Components INLET VALVE Component Description COMPRESSOR COMPRESSOR DISCHARGE TEMPERATURE SENSOR DELETED COMPRESSOR DISCHARGE TEMPERATURE SWITCH SNSR, TEMPERATURE COMPRESSOR DISCHARGE PRESSURE SENSOR SWITCH,TEMPERATURE VALVE, RELIEF RECEIVER, AIR/OIL GLASS, SIGHT OIL LEVEL...

  • Page 36: Piping And Instrumentation-Engine System

    2.9 Piping and instrumentation—engine system 88292050-112 R02 (sh2)
  • Page 37 2.9 Piping and instrumentation—engine system Key Description MUFFLER, ENGINE FUEL LEVEL SENDER (OPTIONAL) RAIN CAP, EXHAUST SYSTEM FUEL FILTER W/ WATER SEPARATOR FUEL TRANSFER PUMP FILTER, FUEL GAUGE, FUEL LEVEL (OPTIONAL) FUEL TANK CAP W/VENT THERMOSTAT, THERMOCORD(OPTIONAL) OIL PUMP (INTEGRAL TO ENGINE) BY-PASS VALVE (INTERNAL TO ENGINE) COOLER, OIL (INTERNAL TO ENGINE) FILTER, OIL...

  • Page 38: Instrument Panel Group, Functional Description

    2: Description 185 Series Diesel Portable Screw Compressor User Manual 2.10 Instrument panel group, • The controller displays the voltage level of the engine storage battery. functional description • The compressor discharge temperature is dis- Refer to Figure 2-7 on page 39 for the locations of the fol- played on the controller display.
  • Page 39 185 Series Diesel Portable Screw Compressor User Manual 2: Description Figure 2-7: Sullair digital controller group (optional full gauge panel shown) 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.

  • Page 40: Wiring Diagram

    2.11 Wiring diagram 88292045-585 R03...

  • Page 41: Electrical System, Functional Description

    185 Series Diesel Portable Screw Compressor User Manual 2: Description 2.12 Electrical system, functional that the oil pressure is low. In case of an extra- low pressure with the engine oil, the diesel description engine will stop automatically, at the same time The electrical system consists of the basic electrical ele- the “low engine oil temperature”...

  • Page 42: Engine Exhaust System

    See the CAT Diesel Engine Operator’s Manual for details of the fuel system for the engine. The DLQ185AC unit is mounted on a chassis with no running gear. A special mount is fitted to this frame for mounting the unit on level ground which also includes 2.15 Engine exhaust system...
  • Page 43 185 Series Diesel Portable Screw Compressor User Manual 2: Description The fuel level sensor detects that the fuel level is lower than the pre-set Low fuel level low fuel level shutdown alarm value (Option) The controller detects that the engine needs to be at rest but the unit is still running Shutdown fail Note: The shutdown is due to a malfunction in the oil pressure switch.
  • Page 44 2: Description 185 Series Diesel Portable Screw Compressor User Manual Notes: 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.

  • Page 45: Section 3: Specifications

    -20 to 120 -29 to 50 Proper compressor fluid level visible halfway in Sullair AWF part numbers: 250030-757 (5 gallons/18.9 liters) and fluid sight glass when checked on a level surface 250030-758 (55 gallon/208 liter drum) with the compressor not running.
  • Page 46 3: Specifications 185 Series Diesel Portable Screw Compressor User Manual Table 3-2: Technical specifications - DPQ185AC Table 3-1: Technical specifications - DLQ185AC Model series DPQ185AC Model series DLQ185AC Compressor performance Compressor performance Rated pressure bar (psig) 6.9 (100) Rated pressure bar (psig) 6.9 (100)
  • Page 47 185 Series Diesel Portable Screw Compressor User Manual 3: Specifications Notes: 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.

  • Page 48: Identification-Dpq

    3.3 Identification—DPQ 1001-4251 R00...
  • Page 49 Notes:...

  • Page 50: Identification-Dlq

    3.4 Identification—DLQ 1001-4219 R00...
  • Page 51 Notes:...
  • Page 52 3: Specifications 185 Series Diesel Portable Screw Compressor User Manual Notes: 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.

  • Page 53: Section 4: Operation

    4.1 General Compressor discharge temperature switch Opens the electrical circuit to shut down the compressor While Sullair has built into this compressor a complete when the discharge temperature reaches 121°C (250°F). set of controls and indicators that allow the operator to control and monitor the compressor’s operation and per-...

  • Page 54: Starting The Compressor

    Block 5. Check the dust collectors and clean if neces- heater is an option available with Sullair. sary. Please contact your nearest distributor for 6. Crack open one service line.

  • Page 55: Mode Setting Procedure

    If the setting is incorrect, find out causes and a long period of time, protect and keep the re-adjust until the pressure setting is correct. machine dry. For the requirements for safe- Then lock the adjusting screw. keeping, please contact Sullair After-sales Ser- vice Department and After-sales Service WARNING Department of the engine manufacture.
  • Page 56 4: Operation 185 Series Diesel Portable Screw Compressor User Manual Notes: 1001-3174 R00 Subject to EAR, ECCN EAR99 and related export control restrictions.

  • Page 57: Section 5: Maintenance

    It is extremely import- radiators ant to evacuate/purge all air within the cooling system before replacing the radiator cap. The coolant provided with Sullair portable air compres- sors is ethylene glycol based, 50/50 mixture, and should Table 5-1: Screw compressor maintenance schedule Operating...
  • Page 58 Change filter element if using AWF® fluid. Add grease. Bearing of moving system ® Compressor fluid and Change the compressor fluid with new Sullair AWF fluid filter and replace the fluid filter element. Engine cooling system Service engine cooling system.

  • Page 59: Daily Maintenance

    Table 3-1: Technical specifica- hours of operation tions - DLQ185AC on page 46 and Table 3-2: After the initial 50 hours of operation, the following main- Technical specifications - DPQ185AC on tenance actions are required to eliminate contaminants page 46.

  • Page 60: Part Replacement And Adjustment Procedures

    5: Maintenance 185 Series Diesel Portable Screw Compressor User Manual • Check the inlet control valve condition and ser- 5.9.2 Compressor fluid filter element replacement vice if necessary. • Check the minimum pressure valve condition and service if necessary. • Check blowdown valve condition and service if necessary.

  • Page 61: Air Filter Maintenance

    185 Series Diesel Portable Screw Compressor User Manual 5: Maintenance 5.9.3 Air filter maintenance 5.9.3.2 Element inspection 1. Insert a bright light source into the element and look for any light leaks which indicate the presence of damage (holes, cracks, etc.) 2.

  • Page 62: Fuel/Water Separator Maintenance

    5: Maintenance 185 Series Diesel Portable Screw Compressor User Manual strainer and orifice, and the blowdown valve; and all are in satisfactory condition, the separator element must be replaced with part number 88291009-563 (element for air/fluid separator). 1. Remove the old element with a strap wrench.
  • Page 63 5. Power up the controller so that the electric provided in Section 3: Specifications or can be obtained priming pump will fill the new filter. by contacting a Sullair representative. • Confirm the fuel fill by observing the trans- The following procedure applies to a compressor with parent bowl on the bottom of the filter.

  • Page 64: Bearing Lubrication

    5: Maintenance 185 Series Diesel Portable Screw Compressor User Manual 1. Rubber plug 5. Metal end cap 2. Outer bearing 6. Inner bearing 3. Grease flow 7. Spring-loaded double lip seal 4. Grease fitting Figure 5-6: Typical E-Z lube axle 1.
  • Page 65 185 Series Diesel Portable Screw Compressor User Manual 5: Maintenance grease zerk in their ends. When grease is pumped into of the spindle. Make sure the nozzle is fully the zerk, it is channeled to the inner bearing and then engaged on the fitting.

  • Page 66: Troubleshooting

    If the troubleshooting remedy does not work, or the mal- prevent additional damage or abnormal operation. function is not covered in this troubleshooting chart, con- tact your nearest Sullair representative or Sullair for technical assistance. Table 5-2: Troubleshooting guide—engine stops, does not crank, or cranks but does not start...
  • Page 67 185 Series Diesel Portable Screw Compressor User Manual 5: Maintenance Table 5-2: Troubleshooting guide—engine stops, does not crank, or cranks but does not start Sign Probable cause Remedy Wait till the engine cools down. Engine Fail To Stop Engine not cooled down will stop by itself.
  • Page 68 5: Maintenance 185 Series Diesel Portable Screw Compressor User Manual Table 5-2: Troubleshooting guide—engine stops, does not crank, or cranks but does not start Sign Probable cause Remedy Change fluid (fluid flush procedure is recommended). Confirm the compres- Excessive foaming Fluid contamination sor is operating in correct temperature range.

  • Page 69: Section 6: Noise Control

    6.1 Noise emissions warranty 2. The use of the compressor after such device or element of design has been removed or Sullair warrants to the ultimate purchaser and each sub- rendered inoperative by any person. sequent purchaser that this air compressor was...

  • Page 70: Noise Emissions Maintenance And Maintenance Record Log

    6: Noise Control 185 Series Diesel Portable Screw Compressor User Manual 6.3 Noise emissions maintenance and maintenance record log The following instructions and maintenance record log book, for the proper maintenance, use and repair of this com- pressor, is intended to prevent noise emission degradation. Table 6-1: Annual muffler and exhaust system inspection At least annually inspect muffler(s) and engine exhaust system to make sure all parts are securely mounted, that all joints and connections are tight, and that the muffler is in good condition.
  • Page 71 185 Series Diesel Portable Screw Compressor User Manual 6: Noise Control Table 6-3: Annual engine vibration mount inspection At least annually inspect engine vibration mounts for security of attachment and to make sure the resilient parts are intact. Do not operate compressor with defective engine mounting system. Remove and replace defective parts by ordering with part numbers indicated in Parts List.
  • Page 72 6: Noise Control 185 Series Diesel Portable Screw Compressor User Manual Table 6-5: Annual acoustical materials inspection At least annually inspect all acoustical materials, if any, for security of attachment. Make sure that there is not any material missing or damaged (refer to Parts List). Clean or replace, if necessary. Do not operate compressor with defective acoustical material.

  • Page 73: Section 7: Appendix

    For every warranty claim request the onus lies with the Claimant to establish its validity. The Seller will not pro- Hereinafter the word “Seller” refers Sullair Australia Pro- ceed with the repairs unless a customer order has been prietary Limited. “Purchaser” refers to the person or com- provided.

  • Page 74: Warranty Period

    2: Appendix 185 Series Diesel Portable Screw Compressor User Manual • Travel Time and Costs: Time to travel to site will 2.1.5.3 Spare parts warranty be charged at current hourly rates to the Claimant. Warranty period on ‘Spare Parts’, irrespective of whether Mileage, accommodation, meals and any other the parts are sold over the counter or as part of a service costs associated with effecting warranty repairs will...

  • Page 75: Sullair Australia Network

    185 Series Diesel Portable Screw Compressor User Manual 2: Appendix 2.2 Sullair Australia Network South Australia Sullair Australia Pty. Ltd 2.2.1 Sullair Australia Head Office 50 – 52 Magazine Road, 7 Bazalgette Crescent Dandenong, Dry Creek, SA, 5094 Victoria, Australia, 3175...

  • Page 76: Global Sales And Services

    Sullair Asia Website: http://www.sullair-asia.com Hotline: 800-830-3977 Sullair Singapore: SULLAIR Asia Pte Ltd: 30 Pioneer Crescent, #10-15, West Park BizCentral Singapore 6288560 Tel: 65-63057456 Fax: 65-63057414 Sullair Taiwan: No. 1, 3/F., No.248 Zhongshan Road, Linkou Village, Taipei County Tel: 02-26013500 Fax: 02-26013032...
  • Page 77 Subject to EAR, ECCN EAR99 and related export control restrictions.
  • Page 78 Sullair Australia 7 Bazalgette Crescent Dandenong Victoria, Australia, 3175 Tel: (+613) 9703 9000 Fax: (+613) 9703 9053 Toll free contact: 1300 266 773 www.sullair.com.au Information and specifications are subject to change without prior notice. Subject to EAR, ECCN EAR99 and related export control restrictions.

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