Graco Series A GMax II 5900 Sprayer Heat Pump User Manual


 
4 310894
Service
Disassembling the pump
Fig. 1. Remove packing nut (202) and throat adjust-
ment spacer (228).
Fig. 1
228
202
ti6178b
Fig. 2. Unscrew intake valve from cylinder.
ti6179a
Fig. 2
Fig. 3. Disassemble intake valve. Clean and inspect.
O-ring (227) may require a pick for removal.
Fig. 3
227
7570e
211
used on
249122,
289590
Fig. 4. Tap piston rod out of cylinder with a hammer or
flip over and tap piston rod out against a benc h.
Note: Sleeve may come out
of cylinder with piston rod.
ti6180a
Fig. 4
Fig. 5. Remove piston rod from sleeve, or remove
sleeve from cylinder.
ti6181a
Fig. 5