AIRLESSCO HSS9000 - Manual (Page 12)

Maintenance
12 3A1188C
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 116919. Replace belt.
Spark Plug:
• Use only BPR6ES (NGK) or W20EPR-U (NIPPON-
DENSO) 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.
Cleaning a Clogged Tip
1. Follow Pressure Relief Procedure, page 6.
2. Clean the front of the tip frequently (with toothbrush
only) during the day to keep material from building
up and clogging the tip.
3. To clean and clear a tip if it clogs, refer to the sepa-
rate instruction manual received with your gun and
nozzle.
Servicing the Fluid Pump
Fluid Pump Removal
1. Relieve Pressure, page 6.
2. Flush the material you are spraying out of the
machine.
3. Remove the front cover.
4. Remove the suction tube (25) and paint hose (26)
(remove at swivel end).
5. Push retaining ring up (27); push out pin (28).
6. Loosen jam nut (28). Unscrew pump.
• Clogged standard flat tip - clean only after the tip is
removed from the gun. See Pressure Relief
Procedure, page 6
WLD
ti2272a
25
26
27
28
ti2272b
ti2272c
28