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Maintenance
311797B 7
Maintenance
Pressure Relief Procedure
The system pressure must be manually relieved to pre-
vent 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, fol-
low the Pressure Relief Procedure whenever you:
• are instructed to relieve the pressure,
• stop spraying,
• check or service any of the system equipment,
• or install or clean the spray tip.
1. Lock gun trigger safety.
2. Turn engine ON/OFF switch to OFF.
3. Move pump valve to OFF (down) and turn pressure control
knob fully counter clockwise.
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.
DAILY: Check engine oil level and fill as necessary.
DAILY: Check hydraulic 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 operation.
DAILY: Check and fill the gas tank.
DAILY: Check that displacement pump is tight.
DAILY: Check level of Throat Seal Liquid (TSL) in dis-
placement pump packing 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.
WEEKLY/DAILY: Remove any debris or media 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 10; replace if necessary.
YEARLY OR 2000 HOURS:
Replace hydraulic oil and filter with Graco hydraulic oil
169236 (5 gallon/20 liter) or 207428 (1 gallon/3.8 liter)
and filter 116909.
Replace belt.
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.
CAUTION
For detailed engine maintenance and specifications,
refer to separate Honda Engines Owner's Manual,
supplied.