Graco Inc 5900HD, 233702, 233701 Maintenance, Pressure Relief Procedure, Injection Hazard, 309409

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Maintenance

Maintenance

INJECTION HAZARD WARNING

INJECTION HAZARD

The system pressure must be manually relieved to prevent the system from starting or spraying accidentally. Fluid

under high pressure can be injected through the skin and cause serious injury. To reduce the risk of an injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you:

Dare instructed to relieve the pressure,

Dstop spraying,

Dcheck or service any of the system equipment,

Dor install or clean the spray tip.

Pressure Relief Procedure

1.Lock gun trigger safety.

2.Turn engine ON/OFF switch to OFF.

3.Move pump switch to OFF and turn pressure control knob fully counterclockwise.

4.Unlock trigger safety. Hold metal part of gun firmly to side of grounded metal pail, and trigger gun to relieve pressure.

5.Lock gun trigger safety.

6.Open pressure drain valve. Leave valve open until ready to spray again.

If you suspect that the spray tip or hose is completely 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. Now clear tip or hose.

Pressure Relief Procedure CAUTION

For detailed engine maintenance and specifications, refer to separate Honda Engines Owner’s Manual, supplied.

DAILY: Check engine oil level and fill as necessary.

DAILY: Check hose for wear and damage.

DAILY: Check gun safety for proper operation.

DAILY: Check pressure drain valve for proper opera- tion.

DAILY: Check and fill the gas tank.

AFTER THE FIRST 20 HOURS OF OPERATION:

Drain engine oil and refill with clean oil. Reference Honda Engines Owner’s Manual for correct oil viscos- ity.

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.

Repack connecting rod (22) top needle bearing after every pump change.

Replacement elements can be purchased from your local HONDA dealer.

WEEKLY: Check level of TSL in displacement pump packing nut. Fill nut, if necessary. Keep TSL in nut to help prevent fluid buildup on piston rod and premature wear of packings.

AFTER EACH 100 HOURS OF OPERATION: Change engine oil. Reference Honda Engines Owner’s Manual for correct oil viscosity.

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.

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Contents INSTRUCTIONS-REPAIR309409E Important Safety InstructionsGMaxr 3900, 5900, 5900HD Airless Paint Sprayers GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MNWarning Symbol Table of ContentsCaution Symbol Warnings and CautionsTOXIC FLUID HAZARD INJECTION HAZARDRECOIL HAZARD 309409EQUIPMENT MISUSE HAZARD HAZARD OF USING FLUIDS CONTAINING HALOGENATED HYDROCARBONSFIRE AND EXPLOSION HAZARD Pressure Relief Procedure MaintenanceINJECTION HAZARD AFTER THE FIRST 20 HOURS OF OPERATIONPROBLEM TroubleshootingSOLUTION CAUSEUse larger diameter hose and/or reduce overall Installation Bearing Housing and Connecting RodRemoval Model 233701 shownSecure gallon counting sensor wire to clutch wire with a tie wrap Drive HousingCut tie wrap holding gallon counting sensor wire to clutch wire 8699A Pinion Assembly/Rotor/Field/Shaft/ClutchBottom View 8. Tap pinion shaft 19d out with plastic mallet 19e 19d 7. Fig. 7. Remove retaining ring 19e10. Remove four screws 16 and lockwashers 11. Remove armature 4a 4a 8703BClamp Engine Clutch Housing8711A On/Off SwitchPressure Control Pressure Adjust PotentiometerControl Board Pressure Control TransducerPressure Control Repair After a fault, follow these steps to restart sprayerDigital Display Messages DISPLAYInstallation Displacement PumpRemoval RepairModels 233701, 233706 and Parts Drawing - GMax 3900, 5900, 5900HD Hi-Boy SprayersY Danger & Warning labels, tags, and cards are free Parts List - GMax 3900, 5900, 5900HD Hi-Boy SprayersRef No. Part No DescriptionRef No. 19 and Parts List & Drawing - Pinion Assembly309409 Models 233700 and Parts Drawing - GMax 3900 and GMax 5900 Lo-Boy SprayersParts List - GMax 3900 and GMax 5900 Lo-Boy Sprayers Models 233706 through 233708 233716 and Parts Drawing - SprayerGMax 3900, 5900 and 5900HD Sprayers Models 233700 through Pressure Control Wiring Diagram Parts List - SprayerVIEW A Models 233700 through 233703 233705 through 233707 233716 andAccessories Parts List/Drawing - Sprayers with RAC Tip, Gun & HoseDisplacement Pump Repair Kits Models 233702, 233703, 233707, 233708Dimensions Technical DataGMax Model 233701ADDITIONAL WARRANTY COVERAGE Graco WarrantyFOR GRACO CANADA CUSTOMERS Graco reserves the right to make changes at any time without notice
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