1 m459232c.3 owner’s manual electric stationary air compressor (230v, single phase/80 gallon, 5 hp and 7.5 hp) instructions for installation/set-up, operation, maintenance, & storage this northstar® belt-driven compressor has a 2-stage 3-cylinder pump (model 459232) or a 2-stage 2-cylinder pump (mod...
2 table of contents equipment protection quick facts ........................................................................................................................................ 1 table of contents .............................................................................................
3 about your air compressor thank you for purchasing a northstar air compressor! It is designed for long life, dependability, and top performance. Intended use. Provides compressed air used primarily for operating air tools and pressurizing other objects that require high air pressure, such as tires...
4 specifications model model # 459232 459242 flow output max. Pressure rating 175 psi 175 psi volume rating @ 90psi 14.9 cfm 24.4 cfm receiver capacity 80 gal. 80 gal. Power requirements dedicated nema receptacles 6-30r 6-50r volts 230v 230v amps 30a 40a motor horsepower 5 hp 7.5 hp dimensions / com...
5 component identification 1. Lifting eyes: may also be used as tie down locations. 2. Ball valve: on/off control for pressurized air supply from receiver tank (not the output pressure). A regulator and/or quick connect fittings can attach to its ½” npt outlet. A regulator should be installed for pr...
6 safety signal words hazard signal word definitions danger warning caution caution notice this is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. Danger (red) indicates a hazar...
7 safety labeling safety decal locations warning: always make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order new labels from northstar product support at 1-800-270-0810. On-product warning labels location part numbers description 1 788998 ai...
8 safety decals to order replacement safety labels, call northstar product support at 1-800-270-0810. File name: 788998.Ai decal part number: 788998 decal description: ac instruction label, 80 gal material: kb14 drawn by: betsy dramdahl date drawn: 10/04/2012 1 2 3.
9 initial set-up step 1. Inspect & unpack upon receipt, inspect air compressor for missing or damaged parts. Verify that it is the compressor you ordered. See “component identification” section of this manual for a diagram of the compressor and its components. For missing components, contact product...
10 step 3. Select suitable location warning: lifting hazard the compressor is heavy. Ensure that proper lifting equipment is available to unload and move compressor to installation site. Location criteria: where no flammable vapors, dusts, and gases are present. At least 15” away from walls and othe...
11 vibrating excessively. Use metal shims under the “short” feet if necessary. 5. A rubber isolation mat or pads may be used under each mounting foot to reduce vibration. Step 5. Installing distribution piping the stationary compressor can utilize the same type of properly rated, single flexible hos...
12 caution: inadequate wiring hazard overheating, short-circuiting and fire damage will result from inadequate wire sizing. Circuit breaker your electrician will need to refer to the national electric code to determine the proper circuit breaker rating required. When selecting a circuit breaker, rem...
13 model #459232 (230 volt; 5 hp) you will recognize this unit since it has a motor reset button. The power lines can be connected directly to the pressure switch (figure 9). Model 459231 top view - pressure switch figure 9 figure 10 model #459242 (230 volt; 7.5 hp) this unit has a motor starter. Co...
14 operation follow operation safety rules before starting the compressor, review the safety rules found below and throughout the manual. Warning failure to follow safety rules may result in serious injury or death to the operator or bystanders. Instruct operators . Owner must instruct all operators...
15 figure 14 pump: the compressor pump capacity for model 459382 is 33.8 oz. Use sae 30 non-detergent pump oil (part #4043) prior to break-in. You may use synthetic lubricants after 50 hour break-in. See “ appendix a: lubricants and compatibility ” for a list of suitable and alternative lubricants. ...
16 connect fitting on the main compressor outlet or after the user installed regulator. Caution: air tools hazard do not attach air tools to open end of the hose until start-up is completed and the unit checks out ok. Quick connect procedure: keep finger off tool or activation switch until ready to ...
17 maintenance & repair warning: maintenance hazards always disconnect, lock out and tag the main power supply and then release air pressure from the receiver tank before cleaning, adjusting, or servicing the compressor. Make sure all guards and shields are replaced before re-starting. Maintenance s...
18 inspect compressor for air leaks inspect system for air leaks on a monthly basis. To test: squirt soapy water around joints during compressor operation and watch for bubbles. Developing bubbles indicate a leak is present. Tighten fittings, if necessary. Change pump oil warning: burn hazard never ...
19 keep compressor clean do not allow air intakes to become blocked. If dust or debris accumulates in the compressor, clean the compressor with a damp cloth or soft bristle brush. Note: do not spray compressor with a garden hose or pressure washer. Water may enter the compressor and cause damage to ...
20 troubleshooting this section provides a list of the more frequently encountered compressor malfunctions, their causes and corrective actions. Some corrective actions can be performed by the operator or maintenance personnel, but others may require assistance of a qualified electrician or service ...
21 parts explosions – model 459232 & 459242 rev c.3.
22 parts list – model 459232 & 459242 rev c.3 ref# part# description model qty ref# part# description model qty 1 788040 manual tube all 1 26 34744 ¼” npt bulkhead fitting all 1 2 788398 unloader tube 459232 1 27 35413 drain plug, ¼” npt all 1 788399 459242 1 3 34937 ½” compression elbow 459232 1 28...
23 459232 pump explosion.
24 459232 pump parts list ref# part# description qty kit # 1 n/a cylinder head 3 kit # 1 2 n/a allen bolt set 12 3 789354 air filter * 2 n/a 4 789355 filter element 2 n/a 5 n/a cylinder head gasket 3 kit # 2 6 n/a in.& ex. Valve assembly 2 kit # 3 7 n/a valve seat gasket 2 kit # 2 8 n/a double head ...
25 459232 pump kits kit # 1 - cylinder head kit– part # 789336 ref# description qty kit qty 1 cylinder head 1 2 2 allen bolt set 4 kit # 2 – gasket seal kit– part # 789356 ref# description qty kit qty 5 cylinder head gasket 2 1 7 valve seat gasket 2 10 cylinder gasket 2 16 front cover gasket 1 25 re...
26 459232 pneumatic schematic safety relief valve 4593000 pump pressure switch safety relief valve 80-gallon tank unloader.
27 459242 pump explosion.
28 459242 pump parts list ref# part# description qty kit # 1 n/a cylinder head 1 kit # 1 2 n/a allen bolt set 4 3 n/a allen bolt set 1 4 789375 air filter * 1 n/a 5 789376 filter element 1 n/a 6 n/a cylinder head gasket 1 kit # 2 7 n/a in.& ex. Valve assembly 1 kit # 3 8 n/a valve seat gasket 1 kit ...
29 459242 pump kits kit # 6 – rod kit– part # 789382 ref# description qty kit qty 14 rod 1 1 42 rod 1 kit # 7 – piston ring kit– part # 789381 ref# description qty kit qty 11 cylinder gasket 2 1 12 piston ring 1 40 piston ring 1 kit # 8 – plate and bolt kit– part # 789392 ref# description qty kit qt...
30 459242 pneumatic schematic safety relief valve 4593100 pump 80-gallon tank unloader pressure switch safety relief valve.
31 appendix a: lubricants and compatibility the following table lists materials that are suitable or not recommended for use with synthetic oil. As some oil escapes into the compressed air, all components that come into contact with the air (i.E., piping, filters, hoses, tools, etc) must be compatib...
32 limited warranty dear valued customer: the northstar product you just purchased is built with the finest material and craftsmanship. Use this product properly and enjoy the benefits from its high performance. By purchasing a northstar product, you show a desire for quality and durability. Like al...
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34 assembled by northern tool & equipment company, inc. Burnsville, mn 55306 northerntool.Com.