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Bareknuckle Welterweight - Airless Paint Sprayer     

OPERATING INSTRUCTIONS  & SAFETY MANUAL

Bareknuckle Welterweight - Airless Paint Sprayer     

OPERATING INSTRUCTIONS  & SAFETY MANUAL   

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28 

 

Micro Computer Controlled 

Board 

Sealing ring replace: 

1.

 

Removed the rear cover with 5” allen wrench.

 

2.

 

Loosen two screws on pump frame with 5” allen wrench, the pump to be removed from the pump frame.

 

3.

 

Loosen four screws which connector the pump and pump cover with 4” allen wrench.

 

4.

 

Open the pump cover, take out the connecting rod component and the gear.

 

5.

 

Screw out the connector with special sleeve.

 

6.

 

Carefully check the piston rod and seal and o-ring and other parts for wear and scratches, if any, should be replaced immediately, 

head the ball into the connector seat, can remove piston, sealing ring, etc.

 

7.

 

With special sleeve screw the connector to pump body and tighten in place.

 

8.

 

Put the connector assembly and gear into pump hosing.

 

9.

 

Locking pump cover and pump housing with screw, then pump loaded on the frame, and cover the rear cover.

 

10.

 

Assembled the Suction tube and Priming tube component.

 

11.

 

According to operating Instructions

 steps to 

activate and check the equipment without dripping.

 

 

 

 

Note:   

1.  All components apply a little oil before assembled. 

2. 

Even if a sealing ring is damaged, must be replaced the whole repair parts.

   

 

230V Airless Sprayer Electrical Installation Drawing 

Electricity (230V) 

                                 Heat               Pressure Control 

Protection          Switch 

 

 

 

 

 

Electrical                                                                                                       

      Switch 

 
 

Motor 

 

a. Joint stopper             b. O-ring 22.5*1.8         c. Stopper sleeve 
d. Position washer           e. Copper washer         f. Felt 
g. Connector seat            h. Copper guide bushing   i. Connector 

 

28 

 

Micro Computer Controlled 

Board 

Sealing ring replace: 

1.

 

Removed the rear cover with 5” allen wrench.

 

2.

 

Loosen two screws on pump frame with 5” allen wrench, the pump to be removed from the pump frame.

 

3.

 

Loosen four screws which connector the pump and pump cover with 4” allen wrench.

 

4.

 

Open the pump cover, take out the connecting rod component and the gear.

 

5.

 

Screw out the connector with special sleeve.

 

6.

 

Carefully check the piston rod and seal and o-ring and other parts for wear and scratches, if any, should be replaced immediately, 

head the ball into the connector seat, can remove piston, sealing ring, etc.

 

7.

 

With special sleeve screw the connector to pump body and tighten in place.

 

8.

 

Put the connector assembly and gear into pump hosing.

 

9.

 

Locking pump cover and pump housing with screw, then pump loaded on the frame, and cover the rear cover.

 

10.

 

Assembled the Suction tube and Priming tube component.

 

11.

 

According to operating Instructions

 steps to 

activate and check the equipment without dripping.

 

 

 

 

Note:   

1.  All components apply a little oil before assembled. 

2. 

Even if a sealing ring is damaged, must be replaced the whole repair parts.

   

 

230V Airless Sprayer Electrical Installation Drawing 

Electricity (230V) 

                                 Heat               Pressure Control 

Protection          Switch 

 

 

 

 

 

Electrical                                                                                                       

      Switch 

 
 

Motor 

 

a. Joint stopper             b. O-ring 22.5*1.8         c. Stopper sleeve 
d. Position washer           e. Copper washer         f. Felt 
g. Connector seat            h. Copper guide bushing   i. Connector 

Problem

What To Check

 

(If check is OK, go to next check)

What To Do 

(When check is not OK, refer to this column)

Motor Won’t Operate

Basic Fluid 

Pressure

1. Pressure control knob setting. Motor will not run 

if set at minimum (fully counter-clockwise).

1. Slowly increase pressure setting to see if motor 

starts.

2. Spray tip or fluid filter may be clogged.

2. Relieve pressure, then clear clog or clean gun 

filter.

3. Machines does not pump.

3. Depress reset button beneath the pump to loosen 

the ball.

Basic Mechanical

1. Pump frozen or hardened paint.

1. Thaw sprayer if water or water-based paint has 

frozen in sprayer. Place sprayer in warm area to 

thaw. Do not start sprayer until thawed completely. 

If paint hardened (dried) in sprayer, replace pump 

packings.

2. Displacement pump connecting rod pin.

Pin must be completely pushed into connecting rod 

and retaining spring must be firmly in groove or 

pump pin.

2. Push pin into place and secure with spring 

retainer.

3. Motor. Remove drive housing assembly.

3. Replace motor if fan won’t turn.

Low Output

1. Worn spray tip.

1.Relieve pressure, replace tip.

2. Verify pump does not continue to stroke when 

gun trigger is released.

2. Service pump.

3. Prime valve leaking.

3. Relieve pressure, then repair prime valve.

4. Suction tube connections.

4. Tighten any loose connections. Check o-ring on 

suction tube.

5. Electric supply with volt meter.

Meter must read 220-240 Vac or 110V(According to 

models). Low voltages reduce sprayer performance.

5. Reset building circuit breaker; replace building 

fuse. Repair electrical outlet or try another outlet.

6. Extension cord size and length.

6. Replace with a correct, grounded extension cord.

7. Leads from motor to circuit board for damaged or 

loose wire connectors. Inspect wiring insulation and 

terminals for signs of overheating.

7. Be sure male terminal pins are centered and 

firmly connected to female terminals. Replace 

any loose terminals or damaged wiring. Securely 

reconnect terminals.

8. Worn motor brushes which must be

greater than 1/4 in. (6 mm).

8. Replace brushes.

9. Motor brushes binding in brush holders. 

9. Clean brush holders. Remove carbon dust by 

using compressed air to blow out brush dust.

10. Low stall pressure. Turn pressure control knob 

fully clockwise.

10. Replace pressure control assembly.

11. Motor armature for shorts by using an armature 

tester (growler) or perform spin test.

11. Replace motor.

TROUBLESHOOTING

SEALING RING REPLACEMENT

230V AIRLESS SPRAYER ELECTRICAL INSTALLATION DRAWING

1. Common Problems of Equipment

1. Removed the rear cover with 5” Allen wrench.

2. Loosen two screws on pump frame with 5” Allen wrench, 

the pump to be removed from the pump frame.

3. Loosen four screws which connector the pump and 

pump cover with 4” Allen wrench.

4. Open the pump cover, take out the connecting rod 

component and the gear.

5. Screw out the connector with special sleeve.

6. Carefully check the piston rod and seal and o-ring and 

other parts for wear and scratches, if any, should be 

replaced immediately, (head the ball into the connector 

seat, can remove piston, sealing ring, etc.)

7. With special sleeve screw the connector to pump body 

and tighten in place.

8. Put the connector assembly and gear into pump hosing.

9. Locking pump cover and pump housing with screw, then 

pump loaded on the frame, and cover the rear cover.

10. Assembled the Suction tube and Priming tube 

component.

11. According to operating Instructions steps to activate 

and check the equipment without dripping.

NOTE:

1. Apply a little oil to all components before assembly.

2. Even if a sealing ring is damaged you must replace all 

worn parts.

Summary of Contents for Welterweight APS

Page 1: ...ng instructions Onlyusewithgroundedelectricaloutlets protectedbyaresidualcurrentdevice Personswithanyheartconditionorhavingapacemaker shouldnotusethismachine Whenunpackingthiscarton ifanypartsaremissi...

Page 2: ...tainers rags and other flammable materials 12 Know the contents of the paints and solvents being sprayed Read all Material safety Data Sheets MSDS and container labels provided with the paints and sol...

Page 3: ...er or for flushing or cleaning keep sprayer at least 20 feet 6 m away from explosive vapors Keep work area free of debris including solvent rags and gasoline Do not plug or unplug power cords or turn...

Page 4: ...hoses to pull equipment Comply with all applicable safety regulations Keep children and animals away from work area Do not operate the equipment when fatigued or under the influence of drugs or alcoho...

Page 5: ...eing pulled accidentally such as if the gun is dropped Lock whenever not in use Nozzle The nozzle is reversible and removable to make cleaning and unclogging easier Turn to Spray position to use the s...

Page 6: ...fore spraying Clean the pump with warm soapy water Make sure the hydraulic oil in the pump is clean and sufficient in volume then begin the following procedure 1 Remove spray tip from gun 2 Put the in...

Page 7: ...rom Priming Tube into waste bucket for 30 to 60 seconds then switch Power to Off 11 11 10 Paint should work itself from Suction Tube to Sprayer to Priming Tube until paint discharges from Return Tube...

Page 8: ...Nozzle Tip is aligned properly Keep the gun approximately 30cm from the surface 1 Once primed adjust nozzle to Spray setting 1 Switch power off and set Trigger Lock 1 Keep gun straight and move arm ac...

Page 9: ...m housing 2 Separate tubes 10 Turn to Prime mode 14 Unscrew nut 6 Turn to Spray mode 3 Place Priming Tube in empty waste bucket 11 Continue to flush until clear 15 Remove filter 4 Submerge Suction Tub...

Page 10: ...type 470 220 240Vac 50Hz 11A 1 phase circuit with a grounding receptacle GROUNDING AND ELECTRICAL REQUIREMENTS Grounding Instructions LONG TERM STORAGE When cleaning for long term storage more than 48...

Page 11: ...unded metal pail then trigger the gun Keep all screws nuts washers gaskets and electrical fittings removed during repair procedures These parts usually are not provided with replacement kits Test repa...

Page 12: ...ob setting Motor will not run if set at minimum fully counter clockwise 1 Slowly increase pressure setting to see if motor starts 2 Spray tip or fluid filter may be clogged 2 Relieve pressure then cle...

Page 13: ...Plastic washer 1 63 Stopper sleeve 1 107 Touch control seat 1 20 Screw seat insert 1 64 Position washer 1 108 Touch control stem 1 21 Pressure relief valve seat 1 65 Copper washer 1 109 Flat washer 4...

Page 14: ...th the original proof of purchase For a warranty claim we reserve the right to repair or replace the goods or part thereof resupply a refurbished machine repair any item that is deemed necessary If th...

Page 15: ...RUCTIONS SAFETY MANUAL 26 BareknuckleOperatingInstructions andSafetyManual Forportablesprayapplication ofpaintsandcoatings HDI Trading Pty Ltd 2A 274 Macquarie Rd Warners Bay NSW 2282 Australia Produc...

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