STARK 65168 6 Gal Oil Free Air Compressor Owner’s Manual

June 8, 2024
STARK

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6 GAL OIL FREE AIR COMPRESSOR
ITEM# 65168

STARK 65168 6 Gal Oil Free Air Compressor

OWNER’S MANUAL AND SAFETY INSTRUCTIONS

65168 6 Gal Oil Free Air Compressor

SAVE THIS MANUAL. KEEP THIS MANUAL FOR SAFETY WARNINGS, PRECAUTIONS, ASSEMBLY, OPERATION, INSPECTION, MAINTENANCE AND CLEANING PROCEDURES. WRITE THE PRODUCT’S SERIAL NUMBER ON THE BACK OF THE MANUAL, OR THE MONTH AND VEAR OF PURCHASE IF PRODUCT HAS NO SERIAL NUMBER
FOR QUESTIONS, PLEASE CALL CUSTOMER SERVICE: 909.628.4900

PRODUCT SPECIFICATIONS

Running Horsepower :1.5HP
Input :120 V, 60 Hz,
AC only, 11.5 Amps
Air Tank Capacity :6 gal.
Air Pressure :150 psi max.
Air Delivery :2.2 SCFM @ 90PSI
Lubrication :Oil-Free

WARNING: READ THIS MANUAL FOR ALL SAFETY INSTRUCTIONS BEFORE USING THIS PRODUCT

IMPORTANT SAFETY PRECAUTIONS

WARNING Improper operation or maintenance of this product could result in serious injury and/or property damage. Read and understand all of the warnings and safety instructions provided before using this equipment.
SAVE ALL INSTRUCTIONS
The air compressor should be operated on a dedicated 15-amp circuit. If the circuit does not have 15 free amps available, a larger circuit must be used. Always use more air hose before utilizing extension cords. Low voltage could cause damage to the motor.

■ Risk of Moving Parts. If the air compressor is in operation, all guards and covers should be attached or installed correctly. If any guard or cover has been damaged, do not operate the equipment until the proper personnel have correctly repaired the equipment. The power cord should be free of any moving parts, twisting and/or crimping while in use and while in storage.
■ Risk of Burns. There are surfaces on your air compressor that while in operation and thereafter can cause serious burns if touched. The equipment should be allowed time to cool before any maintenance is attempted. Items such as the compressor pump and the outlet tube are normally hot during and after operation.
■ Risk of Falling. Operation of the air compressor should always be in a position that is stable. Never use the air compressor on a rooftop or elevated position that could allow the unit to fall or be tipped over. Use additional air hose for elevated jobs.
■ Risk from Flying Objects. Always wear approved safety glasses with side shields when the air compressor is in use. Turn off the air compressor and drain the air tank before performing any type of maintenance or disassembly of the hoses or fittings. Never point any nozzle or sprayer toward any part of the body or at other people or  animals.
■ Risk to Breathing. Avoid using the air compressor in confined areas. Always have adequate space (30 cm) on all sides of the air compressor. Also keep children, pets, and others out of the area of operation. This air compressor does not provide breathable air for anyone or any auxiliary breathing device. Spraying material will always need to be in another area away from the air compressor to not allow intake air to damage the air compressor filter.
■ Risk of Electrical Shock. Never utilize the air compressor in the rain or wet conditions. Any electrical issues or repairs should be performed by authorized personnel such as an electrician and should comply with all national and local electrical codes. The air compressor should also have the proper three prong grounding plug, correct voltage, and adequate fuse protection.
■ Risk of Explosion or Fire. Never operate the compressor near combustible materials, gasoline or solvent vapors. If spraying flammable materials, locate the air  compressor at least 50m away from the spray area. Never operate the air compressor indoors or in a confined area.
■ Risk of Bursting. Always drain the air compressor tank daily or after each use. If the tank develops a leak, then replace the air compressor. Never use the air compressor after a leak has been found or tried to make any modifications to the tank. Never modify the air compressor’s factory settings which control the tank pressure or any other function.

PARTS & FEATURES

Drain Valve: Used to drain condensation from the air tank. Located at bottom of tank.
Motor Thermal Overload: The motor has an automatic thermal overload protector. If the motor overheats, this protector will shut off the motor. The motor must be allowed 30 minutes to cool before restarting.
Quick Connect: Offers a quick release feature for attaching and removing the air hose.
Oil-Free Pump: Oil free direct driven pump that compresses air, which is distributed to the tank.
Tank Safety Valve: Used to allow excess tank pressure to escape into the atmosphere. This valve should only open when the tank pressure is above the maximum rated pressure.
Outlet Pressure Gauge: Indicates the outgoing air pressure to the tool and is controlled by the regulator.
Tank Pressure Gauge: Indicates the reserve air pressure in the tank.
Regulator: The regulator controls the air pressure coming from the air tank. To increase the pressure, turn the knob clockwise and to decrease the pressure turn the knob counterclockwise.

INSTALLATION & ASSEMBLY

Lubrication and Oil This compressor requires no lubrication or oiling. No break in procedure is required by the user. This product is factory tested to ensure proper operation and performance.
Location of the Air Compressor The air compressor should always be located in a clean, dry, and well-ventilated environment. The unit should have at minimum, 30cm of space on each side. The air filter intake should be free of any debris or obstructions. Check the air filter on a daily basis to be sure it is clean and in working order.
Extension Cords Use only a 3-wire extension cord that has a 3-blade grounding plug, and a 3-slot receptacle that will accept the plug on the product. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. Cords must not exceed 25 feet and No. 12 AWG size must be used. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.

Grounding Instructions This product should be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This product is equipped with a cord having a grounding wire with an appropriate grounding plug. The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances. Check with a qualified electrician or service personnel if these instructions are not completely understood or if in doubt as to whether the tool is properly grounded.

OPERATION PROCEDURES

Daily Start-Up Procedures

  1. Set the On/Off switch to the off position.
  2. Check the air compressor visually for any damage or obstruction.
  3. Close the drain valve.
  4. Plug the power cord into the proper receptacle.
  5. Turn the On/Off switch to the On position and the compressor should start and build air pressure in the tank to cut-out pressure and then shut off automatically.
  6. Adjust the regulator to a PSI setting that is recommended for your application.
  7. The air compressor is now ready for use.

WARNING Improper installation of the grounding plug can result in a risk of electric shock. If repair or replacement of the cord or plug is necessary, do not connect the grounding wire to either flat blade terminal. The wire with insulation having an outer surface that is green with or without yellow stripes is the grounding wire. Check with a qualified electrician or serviceman if the grounding instructions are not completely understood, or if in doubt as to whether the product is properly grounded. Do not modify the plug provided; if it will not fit the outlet, have the proper outlet installed by a qualified electrician.

Daily Shut-Down Procedures

  1. Set the Auto-On/Off lever to the Off position.
  2. Unplug the power cord from the receptacle.
  3. Set the outlet pressure to zero on the regulator.
  4. Remove any air tools or accessories.
  5. Open the drain valve allowing air to bleed from the tank. After all of the air has bled from the tank, close the drain valve to prevent debris buildup in the valve.
    Water that remains in the tank during storage will corrode and weaken the air tank, which could cause the tank to rupture. To avoid serious injury, be sure to drain the tank after each use or daily.

CAUTION When draining the tank, always use ear and eye protection. Drain the tank in a suitable location; condensation will be present in most cases of draining.

MAINTENANCE

NOTE: Qualified service personnel should perform any service procedure not covered in the maintenance schedule below.

ITEMS TO CHECK/CHANGE| Before Each Use or Daily| After First Ten Hours| Every 100 Hours
---|---|---|---
Check Tank Safety Valve| X| |
Overall Unit Visual Check| X| |
Check Air Filter (more frequently in dusty or humid environments)| X| |

CAUTION To ensure efficient operation and longer life of the air compressor unit, a routine maintenance schedule should be followed. The following schedule is geared toward a consumer whose compressor is used in a normal working environment on a daily basis. If necessary, the schedule should be modified to suit the condition under which your compressor is used. The modifications will depend upon the hours of operation and the working environment. Air compressors used in an extremely dirty and/or hostile environment will require a greater frequency of all maintenance checks.

STORAGE

For storing the air compressor, be sure to do the following:

  1. Turn the unit off and unplug the power cord from the receptacle.
  2. Remove all air hoses, accessories, and air tools from the air compressor.
  3. Perform the daily maintenance schedule.
  4. Open the drain valve to bleed all air from the tank.
  5. Close the drain valve.
  6. Store the air compressor in a clean and dry location.

WARNING The air compressor should be turned off and unplugged from the power source before any maintenance is performed as well as the air bled from the tank and the unit allowed time to cool. Personal injuries could occur from moving parts, electrical sources, compressed air or hot surfaces.

TROUBLE SHOOTING GUIDE

The air compressor should be turned off and unplugged from the power source before any maintenance is performed as well as the air bled from the tank and the unit allowed time to cool. Personal injuries could occur from moving parts, electrical sources, compressed air, or hot surfaces.

Problem Possible Correction
Air leaks at the check valve or at the pressure relief valve. A defective

check valve results in a constant air leak at the pressure release valve when there is pressure in the tank and the compressor is shut off. Drain the tank, then remove and clean or replace the check valve.
Air leaks between head and cylinder.| Be sure of proper torque on head bolts. If leak remains, contact a service technician.
Air leak from safety valve.| Operate the safety valve manually by pulling on the ring. If the valve continues to leak when in the closed position, it should be replaced.
Pressure reading on the regulated pressure gauge drops when an accessory is used.| If there is an excessive amount of pressure drop when the accessory is used, replace the regulator.
NOTE:
Adjust the regulated pressure under flow conditions (while accessory is being used). It is normal for the gauge to show minimal pressure loss during initial use of the tool.
Excessive tank pressure.| Move the Auto-On/Off lever to the Off position. If the unit doesn’t shut off, unplug it from the power source and contact a service technician.
Motor will not start.| Make sure power cord is plugged in and the switch is on. Inspect for the proper size fuse in your circuit box. If the fuse was tripped reset it and restart the unit. If repeated tripping occurs, replace the check valve or contact your service technician.
Excessive moisture in the discharge air.| Remove the water in the tank by draining after each use. High humidity environments will cause excessive condensation. Utilize water filters on your air line.
NOTE:
Water condensation is not caused by compressor malfunction. Be sure the compressor’s air output is greater than your tool’s air consumption rate.
Air leaks from the tank body or tank welds.| Never drill into weld or otherwise modify the air tank or it will weaken. The tank can rupture or explode. Compressor cannot be repaired. Discontinue use of the air compressor.

PARTS LIST

STARK 65168 6 Gal Oil Free Air Compressor - Fig 2

PARTS LIST FOR 6GAL

NUM SPECIFICATION QTY
1 SCREW M6X35 4
2 SPRING WASHER M6 4
3 NUT M6 4
4 CYLINDER HEAD 1
5 EXHAUST ELBOW 1
6 GASKET OF CYLINDER HEAD 1
7 VALVE PLATE 1
8 VALVE REED 2
9 ALUMINUM GASKET 1
10 GASKET OF CYLINDER UPPER 1
11 CYLINDER 1
12 MOTOR SET 1
13 BEARING 6001 1
14 BEARING 6201 1
15 BEARING 6203 1
16 CIRCLIP φ40 1
17 ECCENTRIC 1
18 BELT 1
19 SCREW M6X16 1
20 COVER OF CONROD 1
21 PISTON RING 1
22 CONROD 1
23 SCREW M4X20 1
24 SPRING WASHER M4 1
25 NUT M4 1
26 ROUND FAN 1
27 WASHER M5 1
28 SPRING WASHER M5 1
29 SCREW M5X15 1
30 MOTOR SHROUD 1
31 SCREW ST3.0X10 6
32 GROUNDING CABLE 1
33 DUAL CONNECT CORD 1
34 QUICK COUPLER 1
35 PRESSURE GAUGE 2
36 QUICK CONNECT 90° 2
37 PPRESSURE SWITCH 1
38 REGULATOR 1
39 SAFETY VALVE 1
40 FIXTURE CLAB FOR REGULATOR 2
41 SCREW ST5X18 6
42 PRESSURE TUBE 1
43 COMPRESSION NUT G3/8 2
44 BRASS COMPRESSION 2
45 NYLON HOSE 1
46 CHECK VALVE 1
47 TANK 1
48 SCREW M6X20 2
49 SCREW M6X30 5
50 WASHER M6 3
51 SPRING WASHER M6 3
52 NUT M6 3
53 SCREW M5X12 8
54 RUBBER FOOT 4
55 DRAIN VALVE 1
56 HANDLE 1
57 SHROUD 1
58 TAPPING SCREW ST4X12 2
59 PRESS FIXTURE 1
60 POWER SWITCH 1
61 POWER CORD 1
62 CABLE CONNECTOR U 2
63 CABLE CONNECTOR O 1
64 INNER WASHER 2
65 SCREW M4X6 2

DISCLAIMER

PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD  BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Record Product’s Serial Number Here: ____
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts.

The material in this manual is for informational purposes only. The product (s) it describes are subject to change without prior notice, due to the manufacturer’s continuous development program. Xtreme Power US makes no representations or warranties with respect to this manual or with respect to the products described herein. Xtreme Power US shall not be liable for any damages, losses, costs or expenses, direct, indirect or incidental, consequential or special, arising out of, or related to the use of this material or the products described herein.

Questions, issues or missing parts?
Before returning to your retailer, our customer service team is here to help.
** Call Us: 909.628.4900
Email Us: infogstarktoolsusa.com
Hours of Operation: 9am – 3pm PST Monday – Friday
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