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Delta 66-750 - page 1
IN STRUCTIO N M ANU AL P ART NO. D26269 Rev . 0 Copyright © 2002 Delta Machinery T o learn more about DEL T A MACHINER Y visit our website at: www .deltamachinery .com. For Parts, Service, W arranty or other Assistance, please call 1-866-422-4286. Oillube Air Compr essor with Single-Stage Pump (66-750) ESP AÑOL: PÁGINA 31 FRANÇAIS: P AGE 61 ...
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Delta 66-750 - page 2
2-ENG D26269 SAFETY GUIDELINES - DEFINITIONS Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury . Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury . Indicates a potentially hazardous situation which, if not avoided, may result in minor o ...
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Delta 66-750 - page 3
3-ENG D26269 IMPORT ANT SAFETY INSTRUCTIONS Save these instructions Improper operation or maintenance of this pr oduct could result in serious injury and property damage. Read and understand all warnings and operation instructions before using this equipment. HAZARD WARNING: Risk of explosion or fir e How T o Prevent It What Could Happen It is norm ...
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Delta 66-750 - page 4
4-ENG D26269 WARNING: Risk of Bursting Air T ank: 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 . How T o Prevent It What Could Happen WARNING: Risk fr om Flying Objects HOW TO PREVENT IT WHA T CAN HAPPEN The compressed air stream can cause so ...
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Delta 66-750 - page 5
5-ENG D26269 HOW TO PREVENT IT WHA T CAN HAPPEN WARNING: Risk to Br eathing WARNING: Risk of Electrical Shock HOW TO PREVENT IT WHA T CAN HAPPEN HAZARD HAZARD Y our air compressor is powered by electricity . Like any other electrically powered device, If it is not used pr operly it may cause electric shock. Repairs attempted by unqualified personne ...
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Delta 66-750 - page 6
6-ENG D26269 HOW TO PREVENT IT WHA T CAN HAPPEN WARNING: RISK OF BURNS T ouching exposed metal such as the compressor head or outlet tubes, can result in serious burns. Never touch any exposed metal parts on compressor during or immediately after operation. Compressor will r emain hot for several minutes after operation. Do not reach ar ound protec ...
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Delta 66-750 - page 7
7-ENG D26269 Review and understand all instructions and war nings in this manual. Become familiar with the operation and controls of the air compr essor . Keep operating area clear of all persons, pets, and obstacles. Keep children away fr om the air compressor at all times . Do not operate the product when fatigued or under the influence of alcoho ...
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Delta 66-750 - page 8
8-ENG D26269 Model No. 66-750 Horsepower Peak 6.5 Bore 2.875" Stroke 2" V oltage-Single Phase 240 Minimum Branch Circuit Requir ement 15 amps *Fuse T ype "Time Delay" Air T ank Capacity - Gallons 60 Approximate Cut-in Pr essure 110 Approximate Cut-out Pr essure 135 SCFM @ 40 PSIG 11.9 SCFM @ 90 PSIG 9.4 SPECIFICA TIONS GLOSSAR Y ...
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Delta 66-750 - page 9
9-ENG D26269 ASSEMBL Y T ools Required for Assembly 1 - 9/16" socket or open end wrench 1 - electric drill Unpacking 1. Remove all packaging. It may be necessary to brace or support one side of the outfit when removing the pallet because the air compressor will have a tendency to tip. 2. Remove and discard the (4) scr ews and washers holding t ...
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Delta 66-750 - page 10
10-ENG D26269 Anchoring of the Air Compressor Excessive Vibration can weaken the air tank and cause an explosion. The compressor must be pr operly mounted. The air compressor MUST be bolted to a solid, level surface. Hardwar e needed: 4 - Concrete anchors (not supplied) 4 - 3/8" Lag screw to fit concr ete anchors (not supplied) 4 - 5/8" W ...
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Delta 66-750 - page 11
11-ENG D26269 Air Distribution System Plastic or PVC pipe is not designed for use with compressed air . Regar dless of its indicated pressur e rating, plastic pipe can burst from air pr essure. Use only metal pipe for air distribution lines. The next figure r epresents a typical air distribution system. The following are tips to remember when setti ...
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Delta 66-750 - page 12
12-ENG D26269 DRAIN TRAP DRAIN TRAPS DRAIN LEGS MOISTURE SEP ARA TOR AND TRAP DIRT LEG DIRT LEG LUBRICA TOR REGULA TOR FIL TER AIR DISCHARGE VA L V E LUBRICA TOR MAIN DISTRIBUTION AIR LINES Slope pipe down in direction of air flow . Water condensate flows along bottom of pipe to drain legs, preventing it from entering feeder lines. REGULA TOR FLEXI ...
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Delta 66-750 - page 13
13-ENG D26269 Description of Operation Become familiar with these controls befor e operating the unit. On/Auto/Off Switch : T urn this switch ON to provide automatic power to the pressur e switch and OFF to remove power at the end of each use. Pressur e Switch: The pressure switch automatically starts the motor when the air tank pressur e drops bel ...
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Delta 66-750 - page 14
14-ENG D26269 Check V alve: When the air compressor is operating, the check valve is "open", allowing compressed air to enter the air tank. When the air compressor r eaches "cut-out" pressure, the check valve "closes", allowing air pressur e to remain inside the air tank. Pressur e Release V alve: The pressur e release ...
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Delta 66-750 - page 15
15-ENG D26269 How to Start 1. T urn the On/Auto/Off lever to "AUTO" and allow tank pressur e to build. Motor will stop when tank pressur e reaches "cut-out" pressur e. 2. When the tank pressur e reaches "cut-out" pressur e open the globe valve. IMPORT ANT : When using regulator and other accessories refer to the manufa ...
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Delta 66-750 - page 16
16-ENG D26269 MAINTENANCE NOTE: See "Operation"section for the location of controls. T o ensur e efficient operation and longer life of the air compressor outfit, a routine maintenance schedule should be pr epared and followed. The following routine maintenance schedule is gear ed to an outfit in a normal working environment operating on ...
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Delta 66-750 - page 17
17-ENG D26269 Oil Drain tank to release air pr essure before r emoving the oil fill cap or oil drain plug. Checking 1. Remove the oil fill plug (A). The oil level should be even with the top of the fill hole and no lower than 6 threads fr om the top of fill hole. 2. If needed, slowly add oil until it reaches the top of fill hole. NOTE: Oil is inclu ...
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Delta 66-750 - page 18
18-ENG D26269 Air Filter - Inspection and Replacement Hot surfaces. Risk of burn. Compressor heads are exposed when filter cover is removed. Allow compr essor to cool prior to servicing. Keep the air filter clean at all times. Do not operate the air compressor with the air filter r emoved. A dirty air filter will not allow the compressor pump to op ...
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Delta 66-750 - page 19
19-ENG D26269 7. Visually inspect the motor drive pulley to verify that it is perpendicular to the drive motor shaft. Points B1 and B2 of Figure should appear to be equal. If they are not, loosen the set scr ew of the motor drive pulley and equalize B1 and B2, using care not to disturb the belt alignment performed in step 2. 8. Retighten the motor ...
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Delta 66-750 - page 20
T o Replace or Clean Check V alve 1. Release all air pressur e from air tank. See "T o Drain T ank" in the Maintenance section. 2. Unplug unit. 3. Using an adjustable wrench loosen outlet tube nut at air tank and pump. Carefully move outlet tube away fr om check valve. 4. Using an adjustable wrench loosen pressur e relief tube nut at air ...
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Delta 66-750 - page 21
21-ENG D26269 STORAGE Before you stor e the air compressor , make sure you do the following: 1. Review the "Maintenance" section on the preceding pages and perform scheduled maintenance as necessary . 2. Set the On/Auto/Off lever to "OFF". 3. Close the globe valve. 4. Remove the air tool or accessory . 5. Open the globe valve an ...
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Delta 66-750 - page 22
22-ENG D26269 TROUBLESHOOTING Performing repairs may expose voltage sour ces, moving parts or compressed air sour ces, moving parts or compressd air sour ces. Personal injury may occur . Prior to attempting any repairs, unplug the air compr essor and bleed off all air tank air pressur e. PROBLEM CAUSE CORRECTION Pressur e switch does not shut off m ...
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Delta 66-750 - page 23
23-ENG D26269 PROBLEM CAUSE CORRECTION Compressor is not supplying enough air to operate accessories. Prolonged excessive use of air . Compressor is not lar ge enough for air requir ement. Hole in hose. Check valve restricted. Air leaks. Restricted air intake filter . Decrease amount of air usage. Check the accessory air requir ement. If it is high ...
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Delta 66-750 - page 24
24-ENG D26269 PROBLEM CAUSE CORRECTION Motor will not run. Fuse blown, circuit br eaker tripped. 1. Check fuse box for blown fuse and replace as necessary . Reset circuit breaker . Do not use a fuse or circuit br eaker with higher rating than that specified for your particular branch circuit. 2. Check for proper fuse. Y ou should use a time delay f ...
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Delta 66-750 - page 25
25-ENG D26269 PROBLEM CAUSE CORRECTION Knocking Noise. Possible defect in safety valve. Operate safety valve manually by pulling on ring. If valve still leaks, it should be replaced. Loose pulley . Tighten pulley set screw , 145-165 in.-lbs. Compressor mounting screws loose. Tighten mounting screws, 20-25 ft.-lbs. Loose flywheel. Tighten flywheel s ...
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Delta 66-750 - page 26
26-ENG D26269 AIR COMPRESSOR DIAGRAM 1 2 31 5 7 6 8 3 For customer wiring 31 32 4 19 23 18 22 21 25 26 20 35 34 28 33 13 37 14 9 11 12 36 15 17 16 30 29 41 T orque 50-60 in.-lbs. T orque 10-15 ft.-lbs. T orque 70-80 in.-lbs. ...
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Delta 66-750 - page 27
27-ENG D26269 P ARTS LIST KEY NO. P AR T NO. DESCRIPTION 1 Z-D26273 T ank 2 Z-D20659 Motor - O/L Ballerina 3 D21594 Motor Mount Pin 4 D23591 Hold Down Screw 5 CAC-1011 Spring Elastomer 6 SSN-1619-ZN Lock W asher 7 SSN-56-ZN W asher 1 x 11/32 x 1/16 8 SS-2038-ZN Nut Wing 5/16-18 9 Z-D22629 Pump Assembly 11 CAC-327 Bracket 12 SSF-8113-ZN Lock Nut 3/8 ...
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Delta 66-750 - page 28
28-ENG D26269 PUMP DIAGRAM ...
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Delta 66-750 - page 29
29-ENG D26269 P ARTS LIST KEY NO. P AR T NO. DESCRIPTION 1 Z-AC-0205 Crankcase * 2 265-16-1 Base Gasket 3 DAC-276 Base 4 SSF-925 Screw 1/4-20 x 7/8 (8 used) (T or que 9 to 12 ft.-lbs.) * 5 265-6 V ent Filter (2 used) 6 265-18 Filter Plate * 7 265-17 Felt Filter 8 SSF-955 Screw (5 used) (T or que 25 to 30 ft.-lbs.) 9 SSF-935 Screw (2 used) 10 SSF-66 ...
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Delta 66-750 - page 30
30-ENG D26269 LIMITED W ARRANTY DEL T A CORPORA TION warrants to the original purchaser that all products covered under this warranty are free from defects in material and workmanship. Pr oducts covered under this warranty include air compressors, air tools, service parts, pressur e washers, and generators, which have the following warranty periods ...
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