Graco GH 16U277, Repair Manual

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Maintenance
332157A 7
Maintenance
For detailed engine maintenance and specifications,
refer to separate Honda Engines Owner’s Manual,
supplied.
Spark Plug:
• Use BPR6ES (NGK) or W20EPR-U
(NIPPONDENSO) plug, only.
• Gap plug to 0.028 to 0.031 in. (0.7 to 0.8 mm).
• Use spark plug wrench when installing and
removing plug.
Frequency Procedure
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 gas tank.
Daily Check that displacement pump is tight.
Daily
Check level of TSL in displacement pump packing nut. Fill nut, if necessary. Keep TSL in
nut to help prevent fluid build up on piston rod and premature wear of packings and pump
corrosion.
After 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 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.
Weekly/Daily Remove and 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; replace if necessary.
Yearly or 2000
hours Replace hydraulic oil and filter element with Graco ISO 46 Hydraulic Oil 169236;
5 gallon/20 liter or 207428; 1 gallon/3.8 liter) and filter element 287871.