Hitachi 3900 Maintenance, Pressure Relief Procedure, Premium Sprayers Engine Oil Funnel

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Maintenance

Maintenance

Pressure Relief Procedure

WARNING

Read Injection Hazard, page 3; Burn Hazard, page 4.

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.

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 that all hose fittings are secure.

DAILY: Check gun safety for proper operation.

DAILY: Check pressure drain valve for proper operation.

DAILY: Check and fill the gas tank.

DAILY: Check level of TSL in displacement pump pack- ing nut. Fill nut, if necessary. Keep TSL in nut to help prevent fluid buildup on piston rod and premature wear of packings and pump corrosion.

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 engine air filter cover and clean ele- ment. 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.

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.

Premium Sprayers Engine Oil Funnel:

Use the supplied engine oil funnel when draining oil.

ti6200a

OIL FUNNEL

310893L

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Contents Related Manuals Korean patent310892 311861 308491 310894Manual Conventions ContentsFire and Explosion Hazard Equipment Misuse Hazard Premium Sprayers Engine Oil Funnel MaintenancePressure Relief Procedure Problem Cause Solution TroubleshootingClean filter. Manual 310892 or Removal Bearing Housing and Connecting RodInstallation Pinion housing 29 and locating pins B Drive HousingPinion Assembly/Clutch Armature Removal Pinion Assembly/Clutch Armature/ClampPinion Assembly Clutch ArmatureClamp Installation Engine Clutch HousingInstallation Pump ON/OFF SwitchPressure Control RemovalPressure Control Transducer Pressure Adjust PotentiometerControl Board Display Sprayer Operation Indication Action Digital Display MessagesRead Injection Hazard, page 3 Burn Hazard, Displacement PumpTwist latch u-bolt back from pump door outer edge Attach drain hose to sprayer Displacement Pump 310893L Gmax ll 3900 Parts Drawing PartsPart Description Qty Gmax ll 3900 Parts List2EFE Gmax ll 5900/5900HD Parts DrawingGmax ll 5900/5900HD Parts List 2EFE Gmax ll 7900/TexSpray 7900 HD Parts DrawingPart Description Qty Gmax ll 7900/TexSpray 7900HD Parts ListRef 29 Pinion Housing Ref 33 Drive Housing Parts Drawing and List Pinion Housing, Drive HousingKits include suction set and drain hose LoBoy Suction Set KitsAll Models Pressure Control and Filter Parts DrawingHandle Pressure Control and Filter Parts ListParts Sprayers, RAC X Tip, Gun & Hose Ref 40 Bearing HousingTechnical Data For Graco Canada Customers Graco Standard Warranty