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Delta 66-750 Instruction Manual

Oillube air compressor with single-stage pump
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To learn more about DELTA MACHINERY
visit our website at: www.deltamachinery.com.
For Parts, Service, Warranty or other Assistance,
please call 1-866-422-4286.
Oillube Air Compressor
with Single-Stage Pump
(66-750)
PART NO. D26269 Rev. 0
Copyright © 2002 Delta Machinery
ESPAÑOL: PÁGINA 31
FRANÇAIS: PAGE 61

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Summary of Contents for Delta 66-750

  • Page 1 To learn more about DELTA MACHINERY visit our website at: www.deltamachinery.com. For Parts, Service, Warranty or other Assistance, please call 1-866-422-4286. Oillube Air Compressor with Single-Stage Pump (66-750) PART NO. D26269 Rev. 0 Copyright © 2002 Delta Machinery ESPAÑOL: PÁGINA 31...

  • Page 2: Important Safety Instructions

    SAFETY GUIDELINES - DEFINITIONS This manual contains information that is important for you to know and understand. This information relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the symbols below. Please read the manual and pay attention to these symbols.
  • Page 3 IMPORTANT SAFETY INSTRUCTIONS Improper operation or maintenance of this product could result in serious injury and property damage. Read and understand all warnings and operation instructions before using this equipment. WARNING: Risk of explosion or fire What Could Happen It is normal for electrical contacts within the motor and pressure switch to spark.
  • Page 4 WARNING: Risk of Bursting Air Tank: The following conditions could lead to a weakening of the tank, and result in a violent tank explosion and could cause property damage or serious injury. What Could Happen Failure to properly drain condensed water from tank, causing rust and thinning of the steel tank.
  • Page 5 WARNING: Risk of Electrical Shock WHAT CAN HAPPEN Your air compressor is powered by electricity. Like any other electrically powered device, If it is not used properly it may cause electric shock. Repairs attempted by unqualified personnel can result in serious injury or death by electrocution.
  • Page 6 WARNING: RISK OF BURNS WHAT CAN HAPPEN Touching exposed metal such as the compressor head or outlet tubes, can result in serious burns. WARNING: RISK FROM MOVING PARTS WHAT CAN HAPPEN Moving parts such as the pulley, flywheel, and belt can cause serious injury if they com into contact with you or your clothing.

  • Page 7: Risk Of Unsafe Operation

    RISK OF UNSAFE OPERATION WARNING: WHAT CAN HAPPEN Unsafe operation of your air compressor could lead to serious injury or death to you or others. HAZARD HOW TO PREVENT IT Always place COMPRESSOR on a...

  • Page 8: Duty Cycle

    Air compressors should be operated on not more than a 50% duty cycle. This means an air compressor that pumps air more than 50% of one hour is considered misuse, because the air compressor is undersized for the required air demand.

  • Page 9: Tools Required For Assembly

    NOTE: Oil is included with some units. If oil is not included, use an oil specifically formulated for use in an air compressor, such as Porter-Cable PAS1 air compressor oil. Oil may be found at the store where the air compressor was purchased.

  • Page 10: Location Of The Air Compressor

    - shims (if needed) Place the air compressor on on a solid, level surface. Mark the surface using the holes in the air compressor feet as a template. Drill holes in the surface for the concrete anchors. Install concrete anchors.

  • Page 11: Wiring Instructions

    Use only metal pipe for air distribution lines. The next figure represents a typical air distribution system. The following are tips to remember when setting up the air compressor’s air distribution system. 11-ENG D26269...

  • Page 12: Air Distribution System

    Use pipe that is the same size as the air tank outlet. Piping that is too small will restrict the flow of air. If piping is over 100 feet long, use the next larger size. Bury underground lines below the frost line and avoid pockets where condensation can gather and freeze.

  • Page 13: Know Your Air Compressor

    You know that the cooling system is working when air is being expelled. Air Compressor Pump (not shown): Compresses air into the air tank. Working air is not available until the compressor has raised the air tank pressure above that required at the air outlet.

  • Page 14: Before Starting Break-In Procedure

    This procedure is required before the air compressor is put into service and when the check valve or a complete compressor pump has been replaced. Make sure the On/Auto/Off lever is in the "OFF" position.

  • Page 15: Before Each Start-Up

    Correct if necessary. NOTE: Minor leaks can cause the air compressor to overwork, resulting in premature breakdown or inadequate performance. Check for excessive vibration. Readjust or shim air compressor feet, if necessary. After 20 minutes, close the globe valve.The air receiver will fill to "cut-out"...

  • Page 16: Customer Responsibilities

    Before performing any maintenance or repair, disconnect power source from the compressor and bleed off all air pressure. To ensure efficient operation and longer life of the air compressor outfit, a routine maintenance schedule should be prepared and followed. The following routine maintenance schedule is geared to an outfit in a normal working environment operating on a daily basis.

  • Page 17: To Drain Tank

    NOTE: Oil is included with some units. If oil is not included, use an oil specifically formulated for use in an air compressor, such as Porter-Cable PAS1 air compressor oil. Oil may be found at the store where the air compressor was purchased.
  • Page 18 1/16" to prevent excessive belt wear. The air compressor flywheel and motor pulley must be in-line (in the same plane) within 1/16" to assure belt retention within flywheel belt grooves. To check alignment, perform the following steps: Unplug air compressor from power source.

  • Page 19: Air Compressor Pump Intake And Exhaust Valves

    Retighten the motor drive pulley set screw to 70-80 in.-lbs. Reinstall belt guard. Air Compressor Pump Intake and Exhaust Valves Once a year have a Trained Service Technician check the air compressor pump intake and exhaust valves. Inspect Air Lines and Fittings for Leaks Turn the air compressor on to inspect for air leaks.

  • Page 20: To Replace Or Clean Check Valve

    To Replace or Clean Check Valve Release all air pressure from air tank. See "To Drain Tank" in the Maintenance section. Unplug unit. Using an adjustable wrench loosen outlet tube nut at air tank and pump. Carefully move outlet tube away from check valve.

  • Page 21: To Replace Belt

    Replace the belt guard. Before you store the air compressor, make sure you do the following: Review the "Maintenance" section on the preceding pages and perform scheduled maintenance as necessary.

  • Page 22: Troubleshooting

    Performing repairs may expose voltage sources, moving parts or compressed air sources, moving parts or compressd air sources. Personal injury may occur. Prior to attempting any repairs, unplug the air compressor and bleed off all air tank air pressure. PROBLEM Excessive tank...
  • Page 23 Decrease amount of air usage. Check the accessory air requirement. If it is higher than the SCFM or pressure supplied by your air compressor, you need a larger compressor. Check and replace if required. Remove and clean, or replace. Tighten fittings.
  • Page 24 PROBLEM Motor will not Motor overload protection run. switch has tripped. Tank pressure exceeds pressure switch "cut-in" pressure. Check valve stuck open. Loose electrical connections. Possible defective motor or starting capacitor. Paint spray on internal motor parts. Pressure release valve on pressure switch has not unloaded head pressure.
  • Page 25 PROBLEM Knocking Noise. Possible defect in safety valve. Defective check valve. Loose pulley. Loose flywheel. Compressor mounting screws loose. Loose belt. Carbon build-up in pump. Belt to tight. Excessive belt Loose belt. wear Tight belt. Loose pulley. Pulley misalignment. Squealing Compressor pump has no sound.

  • Page 26: Air Compressor Diagram

    AIR COMPRESSOR DIAGRAM customer wiring 22 21 D26269 Torque 10-15 ft.-lbs. Torque 70-80 in.-lbs. Torque 50-60 in.-lbs. 26-ENG...

  • Page 27: Parts List

    Motor Pulley Set Screw Screw (3 used) Washer Belleville Outlet Tube Check Valve Connector Body Screw 5/16-18 x 7/8 Hex (4 used) Nut Sleeve Assembly 1/2" (2 used) Belt Drain Valve (Not Shown) Air Compressor Oil (not shown) 27-ENG D26269...

  • Page 28: Pump Diagram

    PUMP DIAGRAM D26269 28-ENG...
  • Page 29 PART NO. Z-AC-0205 265-16-1 DAC-276 SSF-925 265-6 265-18 265-17 SSF-955 SSF-935 SSF-6627 Z-CAC-4213 * 12 Z-CAC-291-1 Z-CAC-4212-1 Valve Plate Assembly CAC-207 265-19 265-410 Z-D22270 * 18 SSP-505 SSP-486 SSN-1018 * 22 AC-0169 SST-104 SSN-1014-ZN SSF-3039-ZN 265-2 CAC-4285 * 28 Z-CAC-54-2 G 31 265-25 G 32...

  • Page 30: Limited Warranty

    90 DAY - Pressure washers used for commercial applications (income producing) and service parts. Delta will repair or replace, at Delta's option, products or components which have failed within the warranty Service will be scheduled according to the normal work flow and business hours at the service period.

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