Graco 312226L User Manual
Repair - Parts List
LineLazer™ IV 200HS Auto-Layout™ System
Airless Line Striper
For application of line striping materials. For professional use only.
Not for use in explosive atmospheres.
3300 psi (22.8 MPa, 228 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for model information.
312190 309055
309277 312345
311254 312307
312226L
EN
ti10234a
Models
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Tip Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General Repair information . . . . . . . . . . . . . . . . . . . . . . . . 6
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Auto-Layout Can Actuator Adjustment. . . . . . . . . . . . . . 12
Auto-Layout System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Control Board Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . 15
Trigger Sensor Adjustment . . . . . . . . . . . . . . . . . . . . . . .16
Models
Distance Sensor Replacement . . . . . . . . . . . . . . . . . . . . 16
Hydraulic Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fan Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Hydraulic Motor Rebuild . . . . . . . . . . . . . . . . . . . . . . . . . 21
Oil/Filter Change. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Gallon Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Displacement Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Auto-Layout System Wiring Diagram . . . . . . . . . . . . . . . 38
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
253922
253955
255155
255156
✔✔
✔✔
✔✔
✔✔
2 312226L
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Do not fill fuel tank while engine is running or hot; shut off engine and let it cool. Fuel is flammable
and can ignite or explode if spilled on hot surface.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
CARBON MONOXIDE HAZARD
Exhaust contains poisonous carbon monoxide, which is colorless and odorless. Breathing carbon
monoxide can cause death. Do not operate in an enclosed area.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
PRESSURIZED ALUMINUM PARTS HAZARD
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids
containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical
reaction and equipment rupture, and result in death, serious injury, and property damage.
312226L 3
Warnings
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS forms from distributor or retailer.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns, do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely.
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read MSDS’s to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
• Always wear impervious gloves when spraying or cleaning equipment.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
• Gloves
• Hearing protection
RECOIL HAZARD
Gun may recoil when triggered. If you are not standing securely, you could fall and be seriously injured.
CALIFORNIA PROPOSITION 65
The engine exhaust from this product contains a chemical known to the State of California to cause cancer, birth defects or other reproductive harm.
This product contains a chemical known to the State of California to cause cancer, birth defects or other
reproductive harm. Wash hands after handling.
4 312226L
Tip Selection
Tip Selection
in.
(cm)
in.
(cm)
in.
(cm)
in.
(cm)
LL5213* 2 (5)
LL5215* 2 (5)
LL5217 4 (10)
LL5219 4 (10)
LL5315 4 (10)
LL5317 4 (10)
LL5319 4 (10)
LL5321 4 (10)
LL5323 4 (10)
LL5325 4 (10)
LL5327 4 (10)
LL5329 4 (10)
LL5331 4 (10)
LL5333 4 (10)
LL5335 4 (10)
LL5355 4 (10)
LL5417 6 (15)
LL5419 6 (15)
LL5421 6 (15)
LL5423 6 (15)
LL5425 6 (15)
LL5427 6 (15)
LL5429 6 (15)
LL5431 6 (15)
LL5435 6 (15)
LL5621 12 (30)
LL5623 12 (30)
LL5625 12 (30)
LL5627 12 (30)
LL5629 12 (30)
LL5631 12 (30)
LL5635 12 (30)
LL5639 12 (30)
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
* Use 100 mesh filter to reduce tip clogs.
312226L 5
General Repair Information
General Repair Information
1. Keep all screws, nuts, washers, gaskets, and
electrical fittings removed during repair proce-
dures. These parts are not normally provided with
replacement assemblies.
grounding
clamp
2. Test repair after problem is corrected.
3. If sprayer does not operate properly, review
repair procedure to verify procedure was done correctly. If necessary, see Troubleshooting, page 8,
for other possible solutions.
4. Install belt guard before operation of sprayer and
replace if damaged. Belt guard reduces risk of
pinching and loss of fingers.
Grounding
Ground sprayer with grounding clamp to earth ground
when flushing sprayer. F
IG. 1.
water pipe, steel
sign post, or
metal light pole
FIG. 1
SAE O-Ring Installation
1. Unscrew lock nut to touch
fitting.
2. Lubricate o-ring (A).
A
ti5414a
3. Screw in fitting hand tight.
TI5415a
4. Unscrew fitting until
oriented properly.
TI06250
A
TI5416a
5. Tighten lock nut to
TI5417a
6 312226L
Maintenance
Maintenance
Pressure Relief Procedure
1. Engage trigger lock.
2. Turn engine ON/OFF switch to OFF.
3. Move pump valve to OFF and turn pressure control
knob fully counterclockwise.
4. Disengage the trigger lock.
5. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
6. Engage the trigger lock.
7. Open pressure drain valve. Leave valve open until
you are ready to spray again.
8. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen tip
guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction.
DAILY: Check hose for wear and damage.
DAILY: Check gun safety for proper operation.
DAILY: Check prime/spray drain valve for proper opera-
tion.
DAILY: Check and fill the gas tank.
DAILY: Check that displacement pump is tight.
DAILY: Top off TSL level in displacement pump packing
nut to help prevent material buildup on piston rod and
early wear of packings.
DAILY: Verify calibration.
AFTER THE FIRST 20 HOURS OF OPERATION: Drain
engine oil and refill with clean oil. Reference Honda
Engines Owner's Manual for correct oil viscosity.
WEEKLY: Remove air filter cover and clean element.
Replace element, if necessary. If operating in an unusually dusty environment: check filter daily and replace, if
necessary.
Replacement elements can be purchased from your
local HONDA dealer.
CAUTION
• Minimum hose size allowable for proper
sprayer operation is 3/8 in. x 50 ft.
• For detailed engine maintenance and specifications, refer to separate Honda Engines Owner's
Manual, supplied.
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
Periodic Maintenance
DAILY: Check engine oil level and fill as necessary.
DAILY: Check hydraulic oil level and fill as necessary.
WEEKLY/DAILY: Remove any debris from hydraulic
rod.
AFTER EACH 100 HOURS OF OPERATION: Change
engine oil. Reference Honda Engines Owner's Manual
for correct oil viscosity.
SEMI-ANNUALLY: Check belt wear, page 18; replace if
necessary.
YEARLY OR 2000 HOURS: Replace hydraulic oil and
filter element with Graco hydraulic oil 169236 (5 gallon/18.9 liter) or 207428 (1 gallon/3.8 liter) and filter element 246173; page 23.
SPARK PLUG: Use only BPR6ES (NGK) or
W20EPR-U (NIPPONDENSO) plug. Gap plug to 0.028
to 0.031 in. (0.7 to 0.8 mm). Use spark plug wrench
when installing and removing plug.
312226L 7
Troubleshooting
Caster Wheel
(See letter call-outs in Parts drawing on page 25.)
1. Once each year, tighten nut (127, detail A) until
spring washer bottoms out. Then back off the nut
1/2 to 3/4 turn.
2. Once each year, tighten nut (127) until it begins to
compress spring washer. Then tighten the nut an
3. Once each month, grease the wheel bearing (F).
4. Check pin (55) for wear. If pin is worn out, there will
be play in the caster wheel. Reverse or replace the
pin as needed.
5. Check caster wheel alignment as necessary. To
align: loosen bolt (145), align wheel and tighten bolt.
additional 1/4 turn.
Troubleshooting
Problem Cause Solution
E=XX is displayed. Fault condition exists. Determine fault correction from table, page 19.
Gas engine pulls hard
(won't start).
Engine won't start. Engine switch is OFF. Turn engine switch ON.
Engine operates, but displacement pump does
not operate.
* Check hydraulic fluid level often. Do not allow it to become too low. Use only Graco approved hydraulic fluid, page 7.
Hydraulic pressure is too high. Turn hydraulic pressure knob counterclockwise to
lowest setting.
Engine is out of gas. Refill gas tank. Honda Engines Owner's Manual.
Engine oil level is low. Try to start engine. Replenish oil, if necessary.
Honda Engines Owner's Manual.
Spark plug cable is disconnected or damaged. Connect spark plug cable or replace spark plug.
Cold engine. Use choke.
Fuel shutoff lever is OFF. Move lever to ON position.
Oil is seeping into combustion chamber. Remove spark plug. Pull starter 3 to 4 times.
Clean or replace spark plug. Start engine. Keep
sprayer upright to avoid oil seepage.
Pump valve is OFF. Turn pump valve ON.
Pressure setting is too low. Turn pressure adjusting knob clockwise to
increase pressure. Manual 312190.
Fluid filter (11) is dirty. Clean filter.
Tip or tip filter is clogged. Clean tip or tip filter. Manual 311254.
Displacement pump piston rod is stuck due to
dried paint.
Belt worn, broken or off pulley. Replace.
Hydraulic fluid too low. Shut of sprayer. Add fluid*.
Hydraulic motor not shifting. Set pump valve OFF. Turn pressure down. Turn
Repair pump. Manual 309277.
engine OFF. Pry rod up or down until hydraulic
motor shifts.
8 312226L
Troubleshooting
Problem Cause Solution
Displacement pump
operates, but output is
low on upstroke
Displacement pump
operates but output is low
on downstroke and/or on
both strokes.
Pump is difficult to prime. Air in pump or hose. Check and tighten all fluid connections.
High engine speed at no
load.
Low stall or run pressure
shown on display.
Excessive paint leakage
into throat packing nut.
Fluid is spitting from gun. Air in pump or hose. Check and tighten all fluid connections. Reprime
Piston ball is not seating. Service piston ball. Manual 309277.
Piston packings are worn or damaged. Replace packings. Manual 309277.
Strainer (34e) is clogged. Clean strainer.
O-ring in pump is worn or damaged. Replace o-ring. Manual 309277.
Intake valve ball is packed with material or is not
seating properly.
Engine speed is too low. Increase throttle setting. Manual 312190.
Suction tube air leak. Tighten suction tube.
Pressure setting is too low. Increase pressure. Manual 312190.
Fluid filter (11), tip filter or tip is clogged or dirty. Clean filter. Manual 312190 or 311254.
Large pressure drop in hose with heavy materials.
Intake valve is leaking. Clean intake valve. Be sure ball seat is not nicked
Pump packings are worn. Replace pump packings. Manual 309277.
Paint is too thick. Thin the paint according to the supplier's recom-
Engine speed is too high. Decrease throttle setting before priming pump.
Misadjusted throttle setting. Reset throttle to 3700-3800 engine rpm at no
Worn engine governor. Replace or service engine governor.
New pump or new packings. Pump break-in period takes up to 100 gallons of
Faulty transducer. Replace transducer.
Throat packing nut is loose. Remove throat packing nut spacer. Tighten throat
Throat packings are worn or damaged. Replace packings. Manual 309277.
Displacement rod is worn or damaged. Replace rod. Manual 309277.
Tip is partially clogged. Clear tip. Manual 311254.
Fluid supply is low or empty. Refill fluid supply. Prime pump. Manual 312190.
Clean intake valve. Manual 309277.
Use larger diameter hose and/or reduce overall
length of hose. Use of more than 100 ft of 1/4 in.
hose significantly reduces performance of
sprayer. Use 3/8 in. hose for optimum performance (50 ft minimum).
Reduce engine speed and cycle pump as slowly
as possible during priming.
or worn and that ball seats well. Reassemble
valve.
mendations.
Manual 312190.
load.
material.
packing nut just enough to stop leakage.
pump. Manual 312190.
Check fluid supply often to prevent running pump
dry.
312226L 9
Troubleshooting
Problem Cause Solution
Excessive leakage
around hydraulic motor
piston rod wiper.
Fluid delivery is low. Pressure setting too low. Increase pressure. Manual 312190.
The sprayer overheats. Paint buildup on hydraulic components. Clean.
Excessive hydraulic
pump noise.
Gallon counter not working.
Sprayer operates, but display does not.
Distance counter not
operating properly.
Mils not calculating. Distance sensor. See “Distance counter not operating properly”.
Fluid spray starts after
spray icon is shown on
display.
Fluid spray starts before
spray icon is shown on
display.
Piston rod seal worn or damaged. Replace these parts.
Displacement pump outlet filter (if used) is dirty or
clogged.
Intake line to pump inlet is not tight. Tighten.
Hydraulic motor is worn or damaged. Bring sprayer to Graco distributor for repair.
Large pressure drop in fluid hose. Use larger diameter or shorter hose.
Oil level is low. Fill with oil, page 7.
Low hydraulic fluid level. Shut off sprayer. Add fluid*, page 7.
Broken or disconnected wire. Check wires and connections. Replace broken
Bad sensor. Replace sensor.
Missing or damaged magnet. Reposition or replace magnet.
Bad connection between control board and display.
Display damaged. Replace display.
Loose cables. Connect cables to back of control board.
Control board LED not flashing. Replace control board.
Trigger sensor not set correctly. See “Spray icon does not show on display when
Bad wiring connections. Check connector, and reconnect.
Distance sensor not spaced correctly from gear. Adjust space between sensor and gear to .050 -/+
Distance sensor and gear not aligned. Remove tire, and press in or pull out gear to align
Gear teeth missing or damaged. Replace distance gear/wheel.
Wire cracked or broken. Replace sensor.
Trigger sensor. See “Spray icon does not show on display when
Gallon counter. See “Gallon counter not working”.
Bad or damaged control board. Replace control board.
Interrupter (164) is improperly positioned. Turn screw counterclockwise until spray icon syn-
Interrupter (164) is improperly positioned. Turn screw clockwise until spray icon is synchro-
Clean filter.
wires.
Remove display and reconnect.
fluid is sprayed”.
.020 in. See page 16.
sensor and gear.
fluid is sprayed”.
chronizes with fluid spray.
nized with fluid spray.
10 312226L
Problem Cause Solution
Spray icon does not show
on display when fluid is
sprayed.
Spray icon is always
shown on display.
Pressure control knob
does not rotate.
Pressure control knob
rotates freely with no
pressure change.
Engine bounces when
striping.
No dots or poor dots
with ghosting
Troubleshooting
Loose connector. Check that 5-pin connector and reed switch are
properly connected.
Interrupter (164) is improperly positioned. Turn screw counterclockwise until spray icon syn-
chronizes with fluid spray.
Reed switch assembly (18) is damaged. Replace reed switch assembly (18).
Magnet on assembly (18) is missing. Replace reed switch assembly (18).
A connector on wiring harness or on reed switch
(18) is damaged.
Cut or sliced wire. Replace wiring harness.
Control board is damaged. Replace control board.
Display is damaged. Replace display.
Interrupter (164) is improperly positioned. Turn screw clockwise until spray icon is synchro-
Reed switch assembly (18) is damaged. Replace reed switch assembly (18).
Knob is jammed. Pull back cover where remote cable connects to
Remote cable broken or disconnected. Replace or reconnect cable.
Spring is broken, loose or missing. Replace or reconnect spring.
No dots. Check that solenoid power cord is plugged in.
Poor dots or dots with ghosting. Solenoid cartridge bar is too close to aerosol
Engine speed to slow Engine speed must be greater than 2600 rpm.
Aerosol can malfunctioning Check that can sprays. Replace if not.
Solenoid module malfunctioning Replace solenoid module.
Disconnect reed switch and 5-pin connector from
back of control board.
Check continuity between pin 1 on 2-pin connector and pin 1 on 5-pin connector. Check continuity
between pin 2 on 2-pin connector and pin 4 on
5-pin connector. If there is no continuity in either
case, replace wiring harness.
If there is continuity in both cases replace reed
switch assembly (18).
nized with fluid spray.
hydraulic pump and turn counter clockwise (ccw)
until free.
Check Remote button. Verify Remote button
operation by changing angle in ANGLE CALC
display.
Solenoid cartridge bar is too far away from aerosol marking can spray tip. Do Auto-Layout Can
Actuator Adjustment.
marking can spray tip. Do Auto-Layout Can
Actuator Adjustment.
312226L 11
Auto-Layout Can Actuator Adjustment
Auto-Layout Can Actuator Adjustment
Adjustments
The can actuator is set at the factory. If the dot size is
not as desired, do the coarse and/or fine adjustments.
Coarse Adjustment
1 Locate four screws on side of holder base.
4 Carefully tighten screws. Verify gap.
ti10070a
2 Loosen screws to allow holder base to move freely.
ti10072a
Do not aim aerosol can at your face.
3 Move holder base until solenoid cartridge bar is
approximately 0.10 in. (thickness of two dimes) from spray tip.
ti10071a
ti10073a
Fine Adjustment
If coarse adjustment did not achieve desired dot size,
proceed as follows:
1 Start striper and move to PARKING MODE display.
PARKING MODE
0 mph
STALL SIZE 9.00’
DOT SIZE
2Set
DOT SIZE
setting to smallest size (least amount of
bars on display). Press arrow keys to increase/decrease
size.
3Do Coarse Adjustment steps 1 and 2. Move holder base
until a dot size of approximately a dime is achieved.
Tighten screws on holder base.
SETUP
MODE
ti9919a
Good Dot Poor Dot with Ghosting
ti10379a
ti10380a
12 312226L
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