AIRLESSCO SS4550 User Manual

AIRLESS PAINT LINE STRIPER

SERVICE/OPERATION

MANUAL

SURE STRIPE

4550 & 6050

001-811 APR09

TABLE OF CONTENTS

SECTION FIGURE

Introduction...................................................... 1

Safety Warnings .............................................. 2

Setting Up........................................................ 5

Flushing........................................................... 5

How to Flush ................................................... 6

Starting Up ...................................................... 7

Pressure Relief Procedure .............................. 9

Line Striping Operation.................................. 10

Airless Spray Gun Operation..........................11

Airless Spray Gun ......................................... 12

Airless Spray Troubleshooting....................... 13

Rev Tips ........................................................ 14

Regular Maintanence .................................... 15

Field Troubleshooting.................................... 15

Servicing the Fluid Pump .............................. 16

Servicing the Inlet Valve ................................ 17

Servicing the Outlet Valve ............................. 17

Packing Replacement Procedures ................ 18

Paint System Assembly................................. 20

Prime Valve ................................................... 21

Manifold Filter................................................ 21

Replacement of Electrical Control Board ...... 22

Pressure Calibration on the Control Board.... 22

Clutch Troubleshooting.................................. 23

Clutch Replacement ...................................... 23

Clutch Assembly............................................ 25

Engine Assembly........................................... 25

Power Unit Assembly .................................... 26

First Gun Assembly ....................................... 27

Second Gun Assembly.................................. 27

Ball Valve....................................................... 27

Gun Holder Assembly.................................... 28

Swivel Wheel Assembly - 4550 ..................... 29

Frame Assembly - 4550 ................................ 30

Swivel Lock Assembly - 6050........................ 31

Swivel Wheel Assembly - 6050 ..................... 31

Frame Assembly - 6050 ................................ 32

Suction Assembly.......................................... 33

Striping Accessories...................................... 33

Airlessco Accessories.................................... 34

1 Filling the Packing Nut/Wet Cup................ 5

2. Spray Tip ................................................... 6

3. Prime Valve ............................................... 6

4. Pressure Control Knob .............................. 6

5. Choke, Fuel, Throttle................................. 6

6. Static Discharge ........................................ 6

7. Spray Gun ................................................11

8. Gun Safety Latch......................................11

9. Major Gun Components ...........................11

10. Spray Tip ..................................................11

11. Airless Spray Gun.................................... 12

12. Oil and Lubrication .................................. 14

13. Fluid Pump .............................................. 16

14. Fluid Pump Connection ........................... 16

15. Fluid Pump Connection ........................... 16

16.Fluid Pump Connection ............................ 16

17. Fluid Pump Connection ........................... 16

18. Fluid Pump Connection ........................... 16

19. Inlet Valve ................................................ 17

20. Outlet Valve ............................................. 17

21. V-Packing ................................................ 19

22. V-Packing Cutaway ................................. 19

23. Paint System ........................................... 20

24. Prime Valve ............................................. 21

25. Manifold Filter.......................................... 21

26. Control Board .......................................... 22

27. Belt Tensioning ........................................ 24

28. Clutch Assembly...................................... 25

29. Engine Assembly..................................... 25

30. Power Unit Assembly .............................. 26

31. First Gun Assembly ................................. 27

32. Second Gun Assembly............................ 27

33. Ball Valve................................................. 27

34. Gun Holder Assembly.............................. 28

35. Swivel Wheel Assembly - 4550 ............... 29

36. Frame Assembly - 4550 .......................... 30

37. Swivel Lock Assembly - 6050.................. 31

38. Swivel Wheel Assembly - 6050 ............... 31

39. Frame Assembly - 6050 .......................... 32

40. Suction Assembly.................................... 33

Airlessco 5397 N. Commerce Ave, Moorpark, CA 93021 www.airlessco.com • (805) 523-0211

INTRODUCTION

The Model 4550 & 6050 are gasoline powered, SL "Slow Stroker" piston pump equipped, airless line stripers. They have been designed to have the reliability and versatility needed to meet the tough daily demands of professional line striping contractors.

The SL pump delivers up to 1.7 gallon per minute output. This allows both models to support dual spray guns with very high volume spray tips. Both are as at home striping a convenience store parking lot as they are lining a professional football eld.

The compact frame of the 4550 gives you big pump power with minimal space requirements, while the 6050 offers the ease of use of a dual swivel front wheel.

You will appreciate convenient design features like spray guns that can quickly be moved to any corner of the machine. Handlebar releasable swivel wheels have turnbuckle based RADIUS MEMORY™ for consistently smooth arcs & circles.

Like all Airlessco stripers and sprayers, they are Build to

Last....Built to Perform.

SS4550 SS6050

Part No. 1 Gun Unit 305-403 305-305

Part No. 2 Gun Unit 305-404 305-307

Max Pressure 3300 PSI 3300 PSI

Output 1.50 GPM 1.70 GPM

Tip Size (1 Gun) 0.035 in. 0.041 in.

Tip Size (2 Gun) 0.029 in. 0.029 in.

Motor

Weight 215 lbs 242 lbs

Honda GX160 Honda GX160

HANDLE THIS UNIT AS YOU WOULD A LOADED FIREARM!

WARNING

HIGH PRESSURE SPRAY CAN CAUSE EXTREMELY SERIOUS INJURY. OBSERVE ALL WARNINGS!

MANUAL NOTATIONS

WARNING - Alerts user to avoid or correct conditions that

could cause bodily injury.

CAUTION - Alerts user to avoid or correct conditions that could cause damage to or destruction of equipment.

IMPORTANT - Alerts users to steps or procedures that are essential to proper equipment repair and maintenance.

NOTE - Identies essential procedures or extra information.

All Service Procedures to be performed by an Authorized Airlessco Service Center ONLY.

NO MODIFICATIONS or alterations of any AIRLESSCO Equipment or part is allowed.

BEFORE OPERATING THIS UNIT, READ AND FOLLOW ALL SAFETY WARNINGS AND INSTRUCTIONS RELATED TO THE USAGE OF THIS EQUIPMENT ON PAGES 2, 3 & 4. READ, LEARN, AND FOLLOW THE PRESSURE RELIEF PROCEDURE ON PAGE 9 OF THIS MANUAL.

WARNINGS

MEDICAL ALERT - Airless Spray Wounds

If any uid appears to penetrate your skin, get EMERGENCY MEDICAL CARE AT ONCE. DO NOT TREAT AS A SIMPLE CUT. Tell the doctor exactly what uid was injected. Have him read the following "NOTE TO PHYSICIAN".

WARNING

HIGH PRESSURE SPRAY CAN CAUSE EXTREMELY SERIOUS INJURY. OBSERVE ALL WARNINGS. THIS SPRAYER IS FOR PROFESSIONAL USE ONLY.

INJECTION HAZARD

FLUIDS UNDER HIGH PRESSURE FROM SPRAY OR LEAKS CAN PENETRATE THE SKIN AND CAUSE EXTREMELY SERIOUS INJURY, INCLUDING THE NEED FOR AMPUTATION. NEVER point the spray gun towards anyone or at any part

of the body. NEVER put hand or ngers over the spray tip. Do not use rag or other materials over your ngers. Paint will penetrate through material and into the hand.

NEVER try to stop or deect leaks with your hand or body. ALWAYS have gun tip guard in place when spraying. ALWAYS lock gun trigger when you stop spraying. ALWAYS remove tip from the gun to clean it. NEVER try to "blow back" paint, it’s not an air sprayer. ALWAYS follow the PRESSURE RELIEF PROCEDURE,

as shown on page 9, before cleaning or removing the spray tip or servicing any system equipment. Be sure equipment safety devices are operating properly before each use. ALWAYS tighten all uid connections before each use.

MEDICAL TREATMENT

If any uid appears to penetrate your skin, get

EMERGENCY CARE AT ONCE. DO NOT TREAT AS A SIMPLE CUT.

• Go to an emergency room immediately.

• Tell the doctor you suspect an injection injury.

• Tell him what kind of material you were spraying with and have him read NOTE TO PHYSICIAN above.

GENERAL PRECAUTION

NEVER alter equipment in any manner. NEVER smoke while in spraying area. NEVER spray highly ammable materials. NEVER use around children. NEVER allow another person to use sprayer unless he is

thoroughly instructed on its' safe use and given this operators manual to read. ALWAYS wear a spray mask, gloves and protective eye wear while spraying. ALWAYS ensure re extinquishing equipment is readily available and properly maintained.

NEVER LEAVE SPRAYER UNATTENDED WITH PRESSURE IN THE SYSTEM. FOLLOW PRESSURE RELIEF PROCEDURES ON PAGE 9.

NOTE TO PHYSICIAN: Injection in the skin is a traumatic injury. It is important to treat the injury surgically as soon as possible. DO NOT DELAY treatment to research toxicity. Toxicity is a concern with some exotic coatings injected directly into the blood stream. Consultation with a plastic surgeon or reconstructive hand surgeon may be advisable.

ALWAYS INSPECT SPRAYING AREA

Keep spraying area free from obstructions. Make sure area has good ventilation to safely remove vapors. NEVER keep ammable material in spraying area. NEVER spray in vicinity of open ame or other sources of ignition. Spraying area must be at least 20 ft. away from spray unit.

SPRAY GUN SAFETY

ALWAYS set safety lock on the gun in "LOCKED" position when not in use and before servicing or cleaning.

DO NOT remove or modify any part of gun. ALWAYS remove spray tip when cleaning. Flush unit with LOWEST POSSIBLE PRESSURE. CHECK operation of all gun safety devices before each

use. Be very careful when removing the spray tip or hose from gun. A plugged line contains uid under pressure. If the tip or line is plugged, follow the PRESSURE RELIEF PROCEDURE as outlined on page 9.TIP GUARD

TIP GUARD

ALWAYS have the tip guard in place on the spray gun while spraying. The tip guard alerts you to the injection hazard and helps prevent accidentally placing your ngers or any part of your body close to the spray tip.

SPRAY TIP SAFETY

USE EXTREME CAUTION when cleaning or changing spray tips. If the spray tip clogs while spraying, engage the gun safety latch immediately. ALWAYS follow the PRESSURE RELIEF PROCEDURE before removing the spray tip to clean it.

NEVER wipe off build up around the spray tip. ALWAYS remove tip & tip guard to clean AFTER pump

is turned off and the pressure is relieved by following the

PRESSURE RELIEF PROCEDURE.

WARNINGS CONTINUED ON NEXT PAGE.........

WARNINGS - CONTINUED

ALWAYS INSPECT SPRAYING AREA

Keep clear of moving parts when starting or operating the sprayer. Do not put your ngers into any openings to avoid amputation by moving parts or burns on hot parts.Precaution is the best insurance against an accident.

When starting the engine, maintain a safe distance from moving parts of the equipment.

Before adjusting or servicing any mechanical part of the sprayer, follow the PRESSURE RELIEF PROCEDURE on page 9, and remove the ignition cable from the spark plug to prevent accidental starting of sprayer.

HOSES

Tighten all uid connections securely before each use. High pressure uid can dislodge a loose coupling or allow high pressure spray to be emitted from the coupling and result in an injection injury or serious bodily injury.

Use only hose that has a spring guard. The spring guard helps protect the hose from kinks or other damage which could result in hose rupture and cause an injection injury.

GROUNDING

Ground the sprayer and other components in the system to reduce the risk of static sparking, re or explosion which can result in serious bodily injury and property damage.

ALWAYS GROUND ALL OF THESE COMPONENTS:

1. Sprayer: Connect a ground wire and clamp (supplied) to a true earth ground.

2. Fluid Hose: use only grounded hoses.

3. Spray gun or dispensing valve: grounding is obtained through connection to a properly grounded uid hose and pump.

4. Object being sprayed: according to your local code.

5. All solvent pails used when ushing should only be metal pails which are conductive.

Once each week, check electrical resistance of hose (when using multiple hose assemblies, check overall resistance of unpressurized hose must not exceed 29 megohms (max) for any coupled length or combination of hose lengths. If hose exceeds these limits, replace it immediately.

Never exceed 500 Ft. (150 m.) overall combined hose length to assure electrical continuity.

KEEP CLEAR OF MOVING PARTS

NEVER use a damaged hose, which can result in hose failure or rupture and cause in injection injury or other serious bodily injury or bodily damage. Before each use, check entire hose for cuts, leaks, abrasion or bulging of cover, or damage or movement of couplings. If any of these conditions exist, replace the hose immediately. Never use tape or any device to try to mend the hose as it cannot contain the high pressure uid. NEVER ATTEMPT TO RECOUPLE THE HOSE. High pressure hose is not recoupleable.

Help prevent damage to the hose by handling and routing it carefully. Do not move the sprayer by pulling it with the hose.

LABELING

Keep all labels on the unit clean and readable. Replacement labels are available from manufacturer.

TOXIC FLUID HAZARD

Hazardous uid or toxic fumes can cause serious injury or death if splashed in eyes or on skin, inhaled or swallowed. Know the hazards of the uid you are using. Store & dispose of hazardous uids according to manufacturer, local, state & national guidelines. ALWAYS wear protective eyewear, gloves, clothing and respirator as recommended by uid manufacturer.

Keep clear of moving parts when starting or operating the sprayer. Do not put your ngers into any openings to avoid amputation by moving parts or burns on hot parts. Precaution is the best insurance against an accident.

When starting the engine, maintain a safe distance from moving parts of the equipment.

WARNINGS CONTINUED ON NEXT PAGE.........

WARNINGS - CONTINUED

AVOID COMPONENT RUPTURE

This sprayer operates at 3000 psi (205 bar). ALWAYS be sure that all components and accessories have a maximum working pressure of at least 3000 psi to avoid rupture which can result in serious bodily injury including injection and property damage. NEVER leave a pressurized sprayer unattended to avoid accidental operation of it which could result in serious bodily injury. ALWAYS follow the PRESSURE RELIEF PROCEDURE whenever you stop spraying and before adjusting, removing or repairing any part of the sprayer. NEVER alter or modify any part of the equipment to avoid possible component rupture which could result in serious bodily injury and property damage. NEVER use weak or damaged or non-conductive paint hose. Do not allow kinking or crushing of hoses or allow it to vibrate against rough or sharp or hot surfaces. Before each use, check hoses for damage and wear and ensure all uid connections are secure. REPLACE any damaged hose. NEVER use tape or any device to mend the hose. NEVER attempt to stop any leakage in the line or ttings with your hand or any part of the body. Turn off the unit and release pressure by following PRESSURE RELIEF

PROCEDURE. ALWAYS use approved high pressure ttings and

replacement parts. ALWAYS ensure re extinquishing equipment is readily available and properly maintained.

IMPORTANT: United States Government safety standards have been adopted under the Occupational Safety & Health Act. These standards, particularly the General Standards, Part 1910, & the Construction Standards, part 1926 should be consulted.

WARNING

Do not use halogenated solvents in this system. The prime valve, 2 gun manifold and most airless guns have aluminum parts and may explode. Cleaning agents, coatings, paints or adhesives may contain halogenated hydrocarbon solvents. DON"T TAKE CHANCES! Consult your material suppliers to be sure. Some of the most common of these solvents are: Carbontetrachloride, Chlorobenzene, Dichloroethane, Dichloroethyl Ether, Ethylbromide, Ethylchloride, Tethrachloethane. Alternate valves and guns are available if you need to use these solvents.

WHEN SPRAYING & CLEANING WITH FLAMMABLE PAINTS OR THINNERS:

1. When spraying with ammable liquids, the unit must be located a minimum of 25 feet away from the spraying area in a well ventilated area. Ventilation must be sufcient enough to prevent the accumulation of vapors.

2. To eliminate electrostatic discharge, ground the spray unit, paint bucket and spraying object. Use only high pressure airless hoses approved for 3000 psi which is conductive.

3. Remove spray tip before cleaning gun and hose. Make contact of gun with bucket and spray without the tip in a well ventilated area, into the grounded steel bucket.

4. Never use high pressure in the cleaning process. USE MINIMUM PRESSURE.

5. Do not smoke in spraying/cleaning area.

PREVENT STATIC SPARKED FIRE/ EXPLOSIONS

ALWAYS be sure all equipment and objects being sprayed are properly grounded. ALWAYS ground sprayer, paint bucket and object being sprayed. See "grounding" on page 3 for detailed grounding information. Vapors created when spraying can be ignited by sparks. To reduce the risk of re, always locate the sprayer at least 20 feet (6 m.) away from the spray area. DO NOT plug in or unplug any electrical cords in the spray area, which can create sparks, when there is any chance of igniting vapors still in the air. Follow the coating & solvent manufacturers safety warnings and precautions. Use only conductive uid hoses for airless applications. Be sure gun is grounded through hose connections. Check ground continuity in hose & equipment. Overall (end to end) resistance of unpressurized hose must not exceed 29 megohms for any coupled length or combination of hose length. Use only high pressure airless hoses with static wire approved for 3000 psi.

FLUSHING

Reduce the risk of injection injury, static sparking or splashing by following the specic cleaning procedure on page 6 and 9. ALWAYS follow the PRESSURE RELIEF PROCEDURE on page 9. ALWAYS remove the spray tip before ushing. Hold a metal part of the gun rmly to the side of a metal pail and use the lowest possible uid pressure during ushing. NEVER use cleaning solvents with ash points below 140 degress F. Some of these are: acetone, benzene, ether, gasoline, naphtha. Consult your supplier to be sure.

NEVER SMOKE IN THE SPRAYING/CLEANING AREA. NEVER leave water in uid pump, to prevent freezing

during storage.

GAS ENGINE PRECAUTIONS

Place unit 25 feet away from spraying in ventilated area.

NEVER operate in buildings unless exhaust is piped outside. NEVER allow hose to lay against engine mufers or hot parts. NEVER rell fuel tank while engine is hot or is running.

SETTING UP

1. CONNECT THE HOSE AND GUN

a. Remove the plastic cap plug from the outlet and screw a

conductive or grounded 3000 psi spray hose onto uid outlet.

b. Connect an airless spray gun to the other end of the

hose, but do not install the spray tip yet!

NOTE: Do not use thread sealer on swivel unions as they are made to self seal.

NOTE: The rst 50’ of hose should always be 3/8".

2. FILL THE PACKING NUT/WET CUP

Fill the Packing Nut/Wet Cup 1/3 full with Airlessco Throat Seal Oil (TSO). FIG 1 BELOW.

FIG. 1

3. CHECK THE ENGINE OIL LEVEL

a. Unscrew the oil ll plug. The dipstick is attached to

the plug.

b. Without threading the plug into place, check to be sure

the oil is up to the top mark on the dipstick.

c. If oil is needed, refer to engine manual.

4. FILL THE FUEL TANK

WARNING: Fuel spilled on a hot surface can cause a re or explosion and cause serious bodily injury and property damage. Always shut off the engine and let it cool before lling the tank, and carefully follow steps a - c below being sure not to spill any fuel.

a. Close the fuel shutoff valve. b. Use only clean, fresh, well-known brands of unleaded

regular grade gasoline.

c. Remove the fuel cap and ll tank. Be sure the air vent

in the ll cap is not plugged so fuel can ow to the carburetor, then replace the cap.

FLUSHING

1. NEW SPRAYER 5. STORAGE

Your unit was factory tested in an anti-freeze solution which was left in the pump. Before using oil-base paint, ush with mineral spirits only. Before using water-base paint ush with mineral spirits, followed by soapy water, then a clean water ush.

2. CHANGING COLORS

Flush with a compatible solvent such as mineral spirits or water.

3. CHANGING FROM WATER-BASE TO OIL-BASE PAINT

Flush with soapy water, then mineral spirits.

4. CHANGING FROM OIL-BASE TO WATER-BASE PAINT

Flush with mineral spirits, followed by soapy water, then a clean water ush.

Oil-base paint: Flush with mineral spirits.

Water-base paint: Flush with water, then mineral spirits and leave the pump, hose and gun lled with mineral spirits.

For longer storage, use mixture of mineral spirits and motor oil (half & half). Shut off the sprayer, follow PRESSURE RELIEF PROCEDURE on page 9 to relieve pressure and make sure prime valve is left open.

6. START UP AFTER STORAGE

Before using water-base paint, ush with soapy water and then a clean water ush. When using oil-base paint, ush out the mineral spirits with the material to be sprayed.

HOW TO FLUSH

1. Be sure the gun safety latch is engaged and there is no spray tip in the gun. Refer to Fig. 2. Refer to your separate instruction manual provided with your gun on its safety features and how to engage safety latch.

2. Pour enough clean, compatible solvent into a large, empty metal pail to ll the pump and hoses.

3. Place the suction tube into the pail or place the pail under the pump.

4. Turn pressure control knob to low. Refer to Fig. 4.

5. Open the prime valve to the open - "Priming Position". This will allow an easy start. Refer to Fig. 3.

6. Turn the engine ON/OFF switch to ON.

7. Move the choke toward the closed position as per Fig.5.

8. Move the throttle lever slightly to the left as per Fig.5.

9. Turn the fuel valve ON as per Fig. 5. Pull the start rope. Pull the engine over against compression stroke and then let the rope rewind slowly into the starter. Pull rmly and rapidly to start the engine. Do NOT drop the rope. Hold on to the handle while rewinding, or the rope may rewind improperly and jam the assembly. If the engine does not start, open the choke a little more. If the engine oods, open the choke all the way and continue cranking.

10. After the engine is warm, gradually close the choke, raise the RPM of engine slightly by moving throttle to the left. Close the prime valve. Refer to Fig. 3

11. Point the gun into the metal pail and hold a metal part of the gun rmly against the pail Refer to g.6.

12. Disengage the gun safety latch and squeeze the gun trigger. At the same time, slowly turn the pressure control knob clockwise just enough to move liquid at low pressure.

13. Allow the pump to operate until clean solvent comes from the gun.

14. Release the trigger and engage the gun safety latch.

15. If you are going to start spraying, place the pump or suction tube into the supply container. Release the gun safety latch and trigger the gun into another empty, metal container, holding a metal part of the gun rmly against the metal pail (Fig. 6), forcing the solvent from the pump and hose. When paint starts coming from gun, turn pressure control knob to minimum pressure, place prime valve in prime (open) position and engage the gun safety latch.

16. If you are going to store the sprayer, remove the suction tube or pump from the solvent pail force the solvent from the pump and hose. Engage the gun safety latch and refer to the "Storage" Procedure on page 5. Step 5.

17. Whenever you shut off the sprayer follow the

PRESSURE RELIEF PROCEDURE warning on page 9.

FIG. 2

REMOVE SPRAY TIP. ENGAGE GUN SAFETY LATCH.

FIG. 4

PRESSURE CONTROL KNOB

FIG. 5

CHOKE LEVER

FUEL VALVE

FIG. 6

MAINTAIN FIRM METAL TO METAL CONTACT BETWEEN GUN AND CONTAINER

FIG. 3

PRIME VALVE

CLOSED

(Pressure)

OPEN

(Priming & Pressure Relief

HIGH PRESSURE

THROTTLE LEVER

WARNING: To reduce the risk of static sparking, which

can cause re or explosion, always hold a metal part of the gun rmly against the metal pail when ushing. This also reduces splashing. Refer to Fig 6.

STARTING UP

1. LEARN THE CONTROLS

PRESSURE CONTROL KNOB - used to adjust pressure only. Turn clockwise to increase pressure and counterclockwise to decrease pressure. (See Fig. 4) PRIME & PRESSURE RELIEF VALVE - Turn to OPEN position (see Fig. 3) to prime the pump. Turn to the

CLOSED position to spray.

FOLLOW "PRESSURE RELIEF PROCEDURES" ON PAGE 9 WHENEVER YOU:

- are instructed to relieve pressure

- stop spraying

- checking or servicing any of the system equipment.

- or installing or cleaning the spray tip.

HANDLE SPRAY SYSTEM AS YOU WOULD A LOADED FIREARM!

CAUTION: Do not start engine without uid pump having

enough uid so that it can be primed. Running uid pump dry will decrease life of the pumps packings.

2. PREPARE THE MATERIAL

a. Prepare the material according to the material

manufacturer's recommendations.

b. Place pump or suction tube into material container.

3. STARTING THE SPRAYER

SEE FIGURE 3 & 6 ON PREVIOUS PAGE

a. Prime Valve must be open - priming position. b. Pressure Control Knob must be in low pressure. c. Follow the procedure under "How to Flush", page 6,

steps 6 through 12.

WARNING

If you spray into the paint bucket, always use the lowest spray pressure and maintain rm metal to metal contact between gun and container. See page 6, Fig 6.

5. ADJUSTING THE PRESSURE

a. Turn the Pressure Control Knob Clockwise to increase

pressure and counterclockwise to decrease pressure.

b. Always use the lowest pressure necessary to completely

atomize the material.

NOTE: Operating the sprayer at higher pressure than needed, wastes material, causes early tip wear, and shortens sprayer life.

c. If more coverage is needed, use a larger tip rather than

increasing the pressure.

d. Check the spray pattern. The tip size and angle

determines the pattern width and ow rate.

6. REDUCING CLUTCH WEAR

a. The rst 50 feet of airless spray hose should be 3/8", the

larger diameter works as a pulsation damper and saves unnecessary cycling of the clutch. A minimum of 100 feet of hose should be used.

b. Adjust the Engine Speed and Pump Pressure. First set

the throttle lever to the maximum RPM setting (fully left). Trigger the gun onto a test paper to check the spray pattern and atomization. Adjust the Pressure Control Knob until you get a good pattern. Reduce RPM of engine to support pressure without laboring engines.

WARNING

To stop the unit in an emergency or before performing any service or maintenance procedure follow the PRES- SURE RELIEF PROCEDURE on page 9 to relieve the uid pressure.

4. PRIME THE PUMP

a. Allow pump to operate until paint comes from gun. b. Release the trigger and engage the gun safety latch. c. Turn Prime Valve OPEN to the prime position ensuring

the pressure is released from the system.

d. Turn Pressure Control Knob to minimum pressure. e. Install spray tip onto gun. f. Close the prime valve to the pressure position. g. Turn the pressure control knob to desired spray

pressure.

h. Disengage the gun safety lock and you are ready to start

spraying.

CONTINUED ON NEXT PAGE.........

STARTING UP CONTINUED

7. CLEANING A CLOGGED TIP

a. Follow PRESSURE RELIEF PROCEDURE on page 9. b. Clean the front of the tip frequently (with toothbrush only)

during the day to keep material from building up and clogging the tip.

c. To clean and clear a tip if it clogs, refer to the separate

instruction manual received with your gun and nozzle.

IMPORTANT WARNING

Always follow the PRESSURE RELIEF PROCEDURE

on page 9 before perfoming any service or maintenance

procedure.

WARNING

Never hold your body, ngers, or hand in a rag in front of the spray tip when cleaning or checking it for a cleared tip. Always point the gun toward the front or into a waste container when checking to see if the tip is cleared or when using a self-cleaning tip.

8. WHEN SHUTTING OFF SPRAYER

a. Whenever you stop spraying, even for a short break,

follow the "PRESSURE RELIEF PROCEDURE".

b. Clean the tip & gun as recommended it the spray gun

instruction manual.

c. Flush the sprayer at the end of each work day, if the

material you are spraying is water-based, or if it could harden in the sprayer overnight. See "Flushing". Use a compatible solvent to ush, then ll the pump and hoses with an oil based solvent such as mineral spirits.

d. For long term shutdown or storage, refer to the

"Flushing" section of this manual.

WARNING

Be sure to relieve pressure in the pump after lling with Airlessco Pump Conditioner.

THERE IS AN EASY WAY TO KEEP THE OUTSIDE OF THE TIP CLEAN FROM MATERIAL BUILD-UP:

Every time you stop spraying, for even a minute, lock the gun and submerge the gun into a small bucket of thinner comparable with the material sprayed. Thinner will dissolve the build up of paint on the outside of tip, tip guard and gun much more effectively than if the paint dries out completely.

WARNING

Clogged standard at tip - clean only after the tip is removed from the gun. Follow the PRESSUR E R ELIEF PROCEDURE Warning on Page 9.

PRESSURE RELIEF PROCEDURE

TO AVOID POSSIBLE SERIOUS BODY INJURY, ALWAYS FOLLOW THIS PROCEDURE WHENEVER THE SPRAYER IS SHUT OFF, WHEN CHECKING IT, WHEN INSTALLING, CHANGING OR CLEANING TIPS, WHENEVER YOU STOP SPRAYING, OR WHEN YOU ARE INSTRUCTED TO RELIEVE THE PRESSURE.

1. Engage the gun safety latch. Refer to the separate instruction manual provided with your gun on its safety features and how to engage safety latch.

2. Turn the unit off.

3. Disengage the gun safety latch and trigger the gun to relieve residual uid pressure.

HOLD METAL PART OF THE GUN IN CONTACT WITH GROUNDED METAL PAIL. USE MINIMUM PRESSURE !

IMPORTANT!

4. Turn Prime/Pressure Relief Valve (PR Valve) to the open (priming) position to relieve residual uid pressure.

5. Re-engage gun safety latch and close Prime/Pressure Relief Valve.

If the SPRAY TIP OR HOSE IS CLOGGED, follow Step 1 through 5 above. Expect paint splashing into the bucket while relieving pressure during Step 4.

If you suspect that pressure hasn't been relieved due to damaged Prime/Pressure Relief Valve or other reason, engage the gun safety latch and take your unit to an authorized Airlessco Service Center.

DAILY MAINTENANCE

1. Keep the displacement pump packing nut/wet cup lubricated with Airlessco TSO (Throat Seal Oil) at all times. The TSO helps protect the rod and the packings.

2. Inspect the packing nut daily. Your pump has a patented Triple Life Packing System. Packing life will be extended a minimum of three times if the following "Packing Adjustment" procedure is followed:

IF SEEPAGE OF PAINT INTO THE PACKING NUT AND/OR MOVEMENT OF THE PISTON UPWARD IS FOUND (WHILE NOT SPRAYING), THE PACKING NUT SHOULD BE TIGHTENED ENOUGH TO STOP LEAKAGE ONLY, BUT NOT ANY TIGHTER. OVERTIGHTENING WILL DAMAGE THE PACKINGS AND REDUCE THE PACKING LIFE.

LINE STRIPING OPERATION

1. CHOOSE THE GUN ARM POSITION 4. ALIGN SWIVEL WHEEL ASSEMBLY

There are 4 holes in the frame on the 4550 & 6050. In a standard set up, the gun arm would be mounted in the right hand near the single wheel. This allows for an easier visual check for straight line striping and for basic arc striping.

2. SETTING UP THE GUNS

a. Ensure that striping tips are in the guns. b. Pick a tip size for the desired line width.

EXAMPLE: a 317ST tip for a four inch line.

c. Place gun into the gun holder, so that the top of the

taper on the gun handle is ush with the edge of the gun holder.

d. Set gun height for the desired line width. Adjust height

by loosening the small black handle on the gun holder assembly and slide the gun arm to the correct height. Now tighten the handle. This will require some experimentation to nd the correct height. It is suggested that tape, or some other method is used to mark the height of commonly used settings.

e. Set spacing between the two guns by loosening the

black handle on the gun arm. Slide to the desired width and tighten.

f. Attach the swivel heads to the guns if painting curbs

or wide stripes.

g. Angle the guns slightly forward. This allows the spray

pressure from the guns to help blow dirt and debris out of the path of the new stripes.

STRAIGHT LINES

a. SS6050: Loosen the two ratchet handles on the swivel

wheel assembly, just enough to be able to move the assembly by hand. Lift the ratchet handle to move the handle without turning the attached bolts, then press down and turn handle counterclockwise to loosen.

SS4550: Stripers are factory aligned, but if necessary, loosen the two bolts (g. 35, item 19) on the swivel wheel assembly, just enough to be able to move the wheel by hand. Align wheel and re-tighten bolts.

b. Place the turnbuckle over the two mounting nubs on the

frame.

c. Pressurize the unit with water and Airlessco's Pump

Conditioner and spray out several lines with the swivel assembly in the locked position. Use the turnbuckle to ne tune the alignment of the wheels, until the stripes are straight.

IMPORTANT: Loosen ratchet handles prior to any turnbuckle adjustment.

d. Tighten the jam nuts on the turnbuckle to afx the

turnbuckle length for future reference.

e. Tighten the ratchet handles (6050) or bolts (4550.)

CURVES AND ARCS

3. CABLE TENSION ADJUSTMENT

Once the handle and gun arm assemblies are set up to the preferred positions, pressurize the unit and trigger each gun to ensure that they activate and release correctly. If not, adjust the cable tension as follows:

a. Locate the adjustment knobs on the base of the gun

trigger, where the cable connects to the gun trigger assembly.

b. Loose the locking nut and move the adjusting screw until

the slack has been removed from the cable.

c. Tighten locking nut and retest gun triggers for proper

function.

NOTE: THERE IS AN ADDITIONAL CABLE ADJUSTMENT WHERE THE CABLE ATTACHES TO THE GUN HOLDER ASSEMBLY. USE ONLY IF THE GUN TRIGGER ADJUSTMENT IS INSUFFICIENT.

Basically the same as above, except the swivel wheel assembly is set at angle. The swivel assembly can be adjusted to 30 degrees either side of straight ahead. If you have arcs that you paint regularly, purchase additional turnbuckles (PN. 136-231) and keep them set to those arc sizes.

5. MISCELLANEOUS OPERATIONS

a. CURBS: Adjust gun to desired height and turn swivel

head towards curb.

b. WIDE STRIPES: Install wider fan striping tips and raise

the gun height to achieve the desired width line. Also angle guns slightly towards each other to get an even coat of paint.

c. STENCILS: Install standard spray tip on the outer gun.

Remove this gun from the gun holder and spray out the stencils.

d. STANDARD PAINTING: Same as stencils, but use

additional paint hose as required.

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