Graco DutyMax DH230 HD Operation, Parts page 22

Startup (Internal Combustion Models)
7. Set hydraulic pump valve ON (hydraulic
motor is now active).
8. Increase pressure enough to start
hydraulic motor stroking and allow fluid
to circulate for 15 seconds; turn pressure
down, turn prime valve horizontal.
15
SEC
9. Disengage spray gun trigger lock.
ti18198a
10. Hold gun against grounded metal
flushing pail. Trigger gun and increase
fluid pressure slowly until pump runs
smoothly. Release trigger and allow
sprayer to build pressure. Engage
trigger lock.
High-pressure spray is able to inject toxins
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
22
ti9687a
FLUSH
11. Inspect for leaks. If leaks occur, turn
sprayer OFF immediately. Perform
Pressure Relief Procedure, page 15.
Tighten leaky fittings. Repeat Startup
procedure steps 2-8. If no leaks,
continue to trigger gun until system is
thoroughly flushed.
12. Place siphon tube in paint pail.
13. Trigger gun again into flushing fluid pail
until paint appears.
14. Assemble Tip and Guard, page 24.
ti9695a
FLUSH
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