Hitachi 309411E manual Maintenance, Pressure Relief Procedure

Maintenance

WARNING

INJECTION HAZARD

System pressure must be manually relieved to prevent system from starting or spraying accidentally. Fluid under high

pressure can be injected through skin and cause serious injury. To reduce risk of injury from injec- tion, splashing fluid, or moving parts, follow Pres- sure Relief Procedure whenever you:

Dare instructed to relieve pressure,

Dstop spraying,

Dcheck or service any system equipment,

Dor install or clean spray tip.

Pressure Relief Procedure

1.Lock gun safety latch.

2.Turn engine or electric motor ON/OFF switch to OFF.

3.Unplug power supply cord (electric motor).

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

5.Rotate RAC 5 tip, if used, to reverse position.

6.Unlock gun safety latch. Hold metal part of gun firmly to grounded metal pail. Trigger gun to relieve pressure.

7.Lock gun safety latch.

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

If suspected that spray tip or hose is completely clogged, or that pressure has not been fully relieved after following 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 obstruction.

CAUTION

For detailed engine maintenance and specifications, refer to separate engine manual, supplied.

DAILY: Check engine oil level and fill as necessary. Manual 309410.

DAILY: Check that V-belt (60) is centered on pulleys and is not inverted. Replace if worn or damaged.

DAILY: Check and fill gas tank.

DAILY: Check hoses for wear and damage.

DAILY: Check gun safety for proper operation.

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

AFTER THE FIRST 20 HOURS OF OPERATION AND EACH 100 HOURS THEREAFTER: Change engine oil.

DAILY: Keep TSL in packing nut to help lubricate pump packings. One full squirt of TSL is usually enough.

WEEKLY: Remove cover of air filter (C) and clean element. Replace element, if necessary. If operating in an unusually dusty environment, check filter daily and replace it, if necessary.

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

Replacement elements can be purchased from your local HONDA dealer.

SPARK PLUG: Use only an BPR6ES (NGK) or W20EPR–U (NIPPONDENSO) plug. Gap plug to 0.028 to 0.031 in. (0.7 to 0.8 mm). Use a spark plug wrench when installing and removing plug.

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