Grizzly T32338 Owner'S Manual Download

Page: 31 / 44

Model T32338 (Mfd. Since 12/20)

-29-

Review the troubleshooting procedures in this section if a problem develops with your machine. If you need
replacement parts or additional help with a procedure, call our Technical Support.

Note: Please gather the

serial number and manufacture date of your machine before calling.

SECTION 7: SERVICE

Troubleshooting

Motor & Electrical

Symptom

Possible Cause

Possible Solution

Machine does
not start, or
power supply
breaker
immediately
trips after
startup.

1. Tanks already pressurized.
2. Incorrect power supply voltage or circuit size.

3. Pressure switch cut-in/cut-out settings have

been adjusted incorrectly.

4. Power supply circuit breaker tripped or fuse

blown.

5. Tripped motor overload; compressor is

exceeding its duty cycle.

6. Start capacitor at fault.
7. Centrifugal switch adjustment/contact points

at fault.

8. Wiring broken, disconnected, or corroded.

9. Check valve components are dirty/damaged.
10. Pressure switch at fault.

11. Motor or motor bearings at fault.

1. Motor will not start if tanks are fully pressurized.
2. Ensure correct power supply voltage and circuit size

(

Page 11).

3. Adjust settings (

Page 34). Do not exceed cut-in/cut-

out pressures listed on data sheet (

Page 6) or inside

pressure switch.

4. Ensure circuit is free of shorts. Reset circuit breaker or

replace fuse.

5. Reduce load on compressor and allow longer cool

down periods. Press motor overload reset button to
reset when motor has cooled (

Page 5).

6. Test/replace if at fault.
7. Adjust centrifugal switch/clean contact points. Replace

either if at fault.

8. Fix broken wires or disconnected/corroded

connections.

9. Clean/replace check valve components (

Page 33).

10. Turn compressor

OFF, disconnect from power, and

empty tanks. DO NOT USE until switch is replaced.

11. Replace motor.

Machine
stalls or is
underpowered.

1.  Air filter dirty/clogged.
2.  Pump/motor have restricted airflow.
3.  Pressure switch cut-in/cut-out settings have

been adjusted incorrectly.

4. Tripped motor overload; compressor is

exceeding its duty cycle.

5.  Crankcase oil is not correct type.
6.  Run capacitor at fault.
7.  Extension cord too long.

8. Check valve components are dirty/damaged.
9. Centrifugal switch/contact points at fault.

10. Motor or motor bearings at fault.
11. Worn valves or rings/compressor pump at

fault.

1. Replace air filter (

Page 26).

2. Clean cylinder fins, motor fan, and vent area.
3. Adjust settings (

Page 34). Do not exceed cut-in/cut-

out pressures listed on data sheet (

Page 6) or inside

pressure switch.

4. Reduce load on compressor and allow longer cool

down periods. Press motor overload reset button to
reset when motor has cooled (

Page 5).

5. Drain and replace with correct oil (

Page 25).

6. Test/repair/replace.
7. Move machine closer to power supply; use shorter

extension cord.

8. Clean/replace check valve components (

Page 33).

9. Adjust centrifugal switch/clean contact points. Replace

either if at fault.

10. Replace motor.
11. Rebuild/replace.

Summary of Contents for T32338

Page 1: ...HIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC CS22286 PRINTED IN TAIWAN V1 05 22 MODEL T32338 4 GALLON 2 5 HP PORTABLE AIR COMPRESSOR OWNER S MANUAL For models manufactured since 12 20 Keep for Future Reference ...

Page 2: ...ng grinding tool integrity and the usage of personal protective equipment The manufacturer will not be held liable for injury or property damage from negligence improper training machine modifications or misuse Some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to the State of California to cause cancer birth defects or other repr...

Page 3: ...ns 14 Assembly 14 Test Run 15 SECTION 4 OPERATIONS 17 Operation Overview 17 Choosing Air Hose 18 Connecting Air Tool 19 SECTION 5 ACCESSORIES 21 SECTION 6 MAINTENANCE 24 Schedule 24 Draining Tanks 25 Lubrication 25 Checking Air Filter 26 Checking for Leaks 27 Machine Storage 28 SECTION 7 SERVICE 29 Troubleshooting 29 Inspecting Check Valve 33 Adjusting Cut In Cut Out Settings 34 SECTION 8 WIRING 3...

Page 4: ... Technical Support for help Before calling make sure you write down the manufacture date and serial number from the machine ID label see below This information is required for us to provide proper tech support and it helps us determine if updated documentation is available for your machine Manufacture Date Serial Number Manual Accuracy INTRODUCTION If you have questions need help need warranty inf...

Page 5: ...controls and features shown below to better understand the instructions in this manual Regulator Machine Foot 1 of 4 Tank Pressure Gauge Compressor Pump Tank 1 of 2 Roll Cage Oil Sight Glass Pressure Switch Drain Valve Line Pressure Gauge Exhaust Tube Circuit Breaker Reset Button Quick Connect Port 1 of 2 Safety Relief Valve Discharge Line Motor Air Filter Cord Storage Hook 1 of 2 ...

Page 6: ... cautions are overlooked or ignored seri ous personal injury may occur No list of safety guidelines can be com plete Every shop environment is different Always consider safety first as it applies to your individual working conditions Use this and other machinery with caution and respect Failure to do so could result in serious personal injury damage to equip ment or poor work results Air Input B A...

Page 7: ...sure Switch Lever Toggles pres sure switch between OFF and ON modes Machine is OFF in OFF mode and will con tinue to pressurize when in ON mode M Pressure Switch Turns motor ON when tank pressure drops below 95 PSI cut in pressure and switch is in ON position Switch contains pressure relief valve that will activate discharge line when tank pressure exceeds 125 PSI cut out pressure or pres sure swi...

Page 8: ...eight 83 lbs Length x Width x Height 20 x 19 x 20 in Electrical Power Requirement 120V Single Phase 60 Hz Full Load Current Rating 14A Minimum Circuit Size 20A Connection Type Cord Plug Power Cord Included Yes Power Cord Length 72 in Power Cord Gauge 14 AWG Plug Included Yes Included Plug Type 5 15 Switch Type Pressure Switch w Motor Reset Button Motors Main Horsepower 2 5 HP Phase Single Phase Am...

Page 9: ...essor Oil Drain Valve Type Ball Valve Roll Cage Yes Regulator Yes Output Port Information Connection Type Quick Coupler Connection Size 1 4 NPT Number of Connections 2 Hose Included No Construction Information Tank Steel Valves Brass Coated Cage Frame Steel Paint Type Finish Enamel Other Specifications Country of Origin Taiwan Warranty 1 Year Serial Number Location ID Label Features 4 Gallon Twin ...

Page 10: ...id proof DANGEROUS ENVIRONMENTS Do not use machinery in areas that are wet cluttered or have poor lighting Operating machinery in these areas greatly increases the risk of accidents and injury MENTAL ALERTNESS REQUIRED Full mental alertness is required for safe operation of machin ery Never operate under the influence of drugs or alcohol when tired or when distracted For Your Own Safety Read Instr...

Page 11: ... moving parts or flying debris Make sure they are properly installed undamaged and working correctly BEFORE operating machine FORCING MACHINERY Do not force machine It will do the job safer and better at the rate for which it was designed NEVER STAND ON MACHINE Serious injury may occur if machine is tipped or if the cutting tool is unintentionally contacted STABLE MACHINE Unexpected movement dur i...

Page 12: ...res sor pump parts heat up during operation Do not touch these parts during or immediately following operation to prevent burns MOVING AND SERVICING Disconnect power allow compressor to cool bleed air from system and disconnect attachment tools and hoses before moving or servicing to prevent impact injuries soft tissue injuries and burns TANK INTEGRITY Inspect tank attachment tools pump air lines ...

Page 13: ...rsized circuit To reduce the risk of these hazards avoid over loading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requirements For your own safety and protection of property consult an electrician if you are unsure about wiring practices or electrical codes in your area Note Circuit requirements in this manual apply to a ded...

Page 14: ...cord size gets longer and the gauge size gets smaller higher gauge numbers indicate smaller sizes Any extension cord used with this machine must be in good condition and contain a ground wire and matching plug receptacle Additionally it must meet the following size requirements Minimum Gauge Size 12 AWG Maximum Length Shorter is Better 50 ft Grounding Plug Requirements Figure 6 Typical 5 15 plug a...

Page 15: ...t not included for the setup assembly of this machine Description Qty Safety Glasses 1 Pr Hearing Protection 1 Needed for Setup This machine was carefully packaged for safe transport When unpacking separate all enclosed items from packaging materials and inspect them for shipping damage If items are damaged please call us immediately at 570 546 9663 IMPORTANT Save all packaging materials until you...

Page 16: ...ery when establishing a location for this machine in the shop Below is the minimum amount of space needed for the machine Placement Location Assembly The machine must be fully assembled before it can be operated Before beginning the assembly process refer to Needed for Setup and gather all listed items To ensure the assembly process goes smoothly first clean any parts that are cov ered or coated i...

Page 17: ...formation is understood Eye injury hazard Always wear safety glasses when handling pressurized air system The Test Run consists of verifying the following 1 The compressor oil level is sufficient 2 the motor powers up and runs correctly 3 the motor and pump turn OFF when the cut out pressure is reached and 4 the safety relief valve works correctly To test run machine 1 Check oil level refer to Lub...

Page 18: ...k valve is NOT working properly and must be replaced before further using machine 11 Turn machine OFF and slowly pull safety relief valve ring to bleed pressure from tanks see Figure 14 If safety relief valve bleeds pressure from tanks and air stops leaking when pressure is released then safety feature of safety relief valve is working correctly Proceed to Step 12 If safety relief valve is stuck o...

Page 19: ...dditional training outside of this manual Read books magazines or get formal training before beginning any proj ects Regardless of the content in this sec tion Grizzly Industrial will not be held liable for accidents caused by lack of training Do not touch compressor head or discharge line during use or immediately after compressor is active These hot parts may cause burns 3 Turns regulator knob a...

Page 20: ... quick couplers see Figure 17 so you will need a 1 4 NPT male plug attached to the hose for each port Male Coupler Female Coupler Male Plug Female Plug Figure 17 Location of quick coupler outlet ports Quick Couplers Length There are many options when it comes to hoses The most important aspects for an air compressor are going to be length diameter and fittings The material of the hose is also an i...

Page 21: ...sels grinders sanders tire inflators and paint sprayers Air hammers impact wrenches impact hammers and blow guns will probably require a larger compressor capable of 10 110 CFM Duty Cycle The duty cycle of your compressor will also have an effect on how efficient the airflow delivery is Refer to Figure 18 for some common duty cycles and what they mean Your second consideration should be the recom ...

Page 22: ...erclockwise Regulator Knob Figure 19 Location of regulator knob Disconnecting Air Tool To disconnect air tool 1 Turn regulator knob see Figure 19 all the way counterclockwise 2 Disconnect air tool from hose 3 Push coupler sleeve toward compressor to release hose plug see Figure 21 Note Air will escape when connection is bro ken if tanks are still pressurized Figure 21 Pushing coupler sleeve to rel...

Page 23: ...artridge Filter Pair P100 Wood dust has been linked to nasal cancer and severe respiratory illnesses If you work around dust everyday a half mask respirator can be a lifesaver Also compatible with safety glasses Figure 23 Assortment of basic eye protection Basic Eye Protection T20501 Face Shield Crown Protector 4 T20502 Face Shield Crown Protector 7 T20503 Face Shield Window T20451 Kirova Clear Sa...

Page 24: ...rates on 60 100 PSI features a 360 degree adjustable exhaust only weighs 3 5 lbs and has a 1 4 NPT air inlet Includes a case Figure 26 H5527 18 Gauge Brad Nailer Kit T23087 Air Brush Kit Perfect for hobbies crafts and fine paint work Kit has lightweight die cast body hardened alloy steel driver operating pressure of 15 50 PSI and 0 35mm nozzle Includes 5 air hose 2 22cc paint jars 1 4 NPT adapter ...

Page 25: ...outer coating solid brass 1 4 NPT end fittings spi ral synthetic yarn reinforcement and a maximum operating pressure of 250 PSI Figure 29 T28648 Red Goodyear Rubber Air Hose G8110 1 4 x 50 PVC Air Hose Oil kink abrasion ozone and weather resistant This PVC air hose is rated to 200 PSI 1 4 NPT Made in the USA Figure 30 G8110 1 4 x 50 PVC Air Hose T28041 Primrose Air Compressor Oil This oil is a ble...

Page 26: ... is active These hot parts may cause burns Allow compressor to cool before handling Eye injury hazard Always wear safety glasses when maintaining pressurized air system Compressor will turn ON automatically when pres sure switch is set to ON To reduce risk of shock accidental startup always disconnect machine from power before adjustments maintenance or service Daily Maintenance Open drain valve t...

Page 27: ...then install fill plug Note There is also a dipstick connected to oil fill plug Oil level should reach between L and H marks on dipstick Checking Oil Level Item Needed Qty Model T28041 or SAE 30 Equiv As Needed Some water may accumulate in the tanks depend ing on usage and humidity Drain water from the tanks daily to increase the lifespan of the compressor and air tools and to prevent tank corrosi...

Page 28: ...s on dipstick The air filter helps prevent impurities and dust from entering the compressor and reduces noise A dirty filter will result in a less efficient system and could become a fire hazard To check air filter 1 DISCONNECT MACHINE FROM POWER Checking Air Filter If filter is fairly clean and there has not been a drop in efficiency of compressor replace cap No replacement is required If filter ...

Page 29: ...pray suspected air leak with soap and water solution and look for air bubbles If bubbles do not form repeat at different location If bubbles do form proceed to Fixing Leaks Fixing Leaks 2 Use safety relief valve to reduce tank pres sure to less than 10 PSI 3 Open drain valve to relieve any remaining air 4 Remove fitting or valve that is leaking 5 Clean threads apply thread sealing tape or pipe dop...

Page 30: ...er machine with tarp or plastic sheet that will keep out dust and resist liquid or mois ture If machine will be stored in near direct sunlight use cover that will block UV rays Eye injury hazard Always wear safety glasses when handling pressurized air system Releasing air through safety relief valve can be extremely loud Protect hearing with ANSI approved hearing protection while performing follow...

Page 31: ...ger cool down periods Press motor overload reset button to reset when motor has cooled Page 5 6 Test replace if at fault 7 Adjust centrifugal switch clean contact points Replace either if at fault 8 Fix broken wires or disconnected corroded connections 9 Clean replace check valve components Page 33 10 Turn compressor OFF disconnect from power and empty tanks DO NOT USE until switch is replaced 11 ...

Page 32: ... Do not exceed cut in cut out pressures listed on data sheet Page 6 or inside pressure switch 2 Turn compressor OFF disconnect from power and empty tanks DO NOT USE until switch is replaced 3 Replace Operation Symptom Possible Cause Possible Solution Air leaks from pressure switch 1 Check valve components are dirty damaged 2 Pressure switch at fault 1 Clean replace check valve components Page 33 2...

Page 33: ...pen drain valve to drain condensation then close 2 Drain water separator 3 Install in line air dryer and water separator Air tool has low supply pressure but compressor has sufficient air pressure 1 Air hose is too long 2 Regulator needs to be adjusted for higher airflow delivery 3 Machine is undersized 4 In line filter is damaged or clogged if used 5 In line water separator is full if used 6 Pres...

Page 34: ...ct type 5 Oil fill plug gasket is worn or damaged 6 Pump gasket s worn or damaged 7 Cylinder head cap screws loose 8 Valve plate or ring is loose damaged 9 Damaged crankcase seal 10 Damaged crankshaft 1 Wipe unit clean with non flammable cleanser 2 Replace air filter Page 26 3 Drain oil to proper level Page 25 4 Drain and replace with correct oil Page 25 5 Replace gasket or fill plug 6 Replace gas...

Page 35: ...ing with ANSI approved hearing protection while performing following step 2 Use safety relief valve to reduce tank pres sure to less than 10 PSI 3 Open drain valve to release any remaining air see Figure 38 Figure 38 Drain valve handle open Figure 39 Location of check valve cap Check Valve Cap 5 Inspect seal ring and diaphragm see Figure 40 for damage and dirt Figure 40 Check valve components Seal...

Page 36: ...t Out Settings The pressure switch ensures the compressor will turn ON when the tank pressure drops to approxi mately 95 PSI cut in pressure and will turn OFF when the tank pressure reaches 125 PSI cut out pressure Should the pressure switch fail to turn OFF the machine the safety relief valve will open shortly after the pressure exceeds 125 PSI and prevent over pressurization Cut in and cut out s...

Page 37: ...pressures 2 DISCONNECT MACHINE FROM POWER Turn screw half turn clockwise to increase tank pressure Turn screw half turn counterclockwise to decrease tank pressure 6 Install pressure switch cover 7 Connect machine to power start compres sor and cycle compressor through cut in cut out pressures If compressor does not automatically turn OFF at 125 PSI turn machine OFF before pressure reaches 130 PSI ...

Page 38: ...ent at the time of printing but may not match your machine If you find this to be the case use the wiring diagram inside the motor junction box CAPACITORS INVERTERS Some capacitors and power inverters store an electrical charge for up to 10 minutes after being disconnected from the power source To reduce the risk of being shocked wait at least this long before working on capacitors EXPERIENCING DI...

Page 39: ...lug SUNNY SP 204 PRESSURE SWITCH LINE MOTOR GND Motor Overload Reset Button MOTOR 120V RONG FENG 20A Start Capacitor 300MFD 125V LINE LOAD Run Capacitor 50uF 250V WARNING SHOCK HAZARD Disconnect power before working on wiring GND Wiring Diagram Figure 45 Pressure switch wiring Figure 46 Motor wiring ...

Page 40: ...53 8 31 54 9 55 10 33 56 11 57 12 35 58 13 59 14 37 60 15 61 16 39 62 17 40 63 18 41 64 19 65 20 43 66 21 67 22 23 27 26 22 18 5 3 25 30 32 34 36 38 44 45 46 7 14 15 42 Main SECTION 9 PARTS To order parts contact MEGA by phone at 832 415 6995 or email at CS megacompressor com ...

Page 41: ...BLY 1 4 1 14 HEX NUT M8 1 25 6 48 SAFETY VALVE 1 15 LOCK WASHER 8MM 6 49 PRESSURE SWITCH SUNNY SP 204 1 16 STUD 2 50 STRAIN RELIEF TYPE 1 1 4 2 17 CYLINDER GASKET 1 51 PLUG 1 4 NPT 2 18 COMPRESSION RING 2 52 REGULATOR 1 19 OIL CONTROL RING 1 53 PRESSURE GAUGE 2 20 PISTON 1 54 UNIVERSAL COUPLER 1 4 NPT 2 21 PISTON PIN 1 55 PHLP HD SCR M5 8 X 8 3 22 SNAP RING 12 7MM 2 56 ELBOW FITTING 90 DEG 1 4 3 8...

Page 42: ...s and parts in place 10 Never leave machine running unattended 11 DO NOT use if cord plug or any other electrical equipment becomes damaged promptly repair 12 DO NOT stand on compressor or obstruct airflow to ventilation openings 13 DO NOT exceed pressure rating of tools or attachments 14 DO NOT aim compressed air at body or people 15 Inspect compressor air lines valves and tank for damage leaks w...

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