Maintenance And Service; Caring For Sprayer; Paint Hoses; Tips - Graco A Series Manual

Maintenance and Service

NOTICE
Protect the internal drive parts of this sprayer from
water. Openings in shroud allow cooling of mechanical
parts and electronics inside. If water gets into these
openings, the sprayer could malfunction or be perma-
nently damaged.

Caring for Sprayer

Keep sprayer and all accessories clean and in good
working order.
To avoid overheating motor, keep vent holes in shroud
clear for air flow. Do not cover sprayer while spraying.

Paint Hoses

Check hose for damage every time you spray. Do not
attempt to repair hose if hose jacket or fittings are dam-
aged. Do not use hoses shorter than 7.5 m (25 ft).
Wrench tighten, using two wrenches.

Tips

• Always clean tips with compati-
ble solvent and brush after
spraying.
• Tips may require replacement
after 57 liters (15 gallons) or
they may last through 227 liters
(60 gallons) depending on abrasiveness of paint.
• Do not spray with worn tip.
3A1782D
ti15970a
ti2055a

Pump Check Valves

• Storing in water, inadequate flushing or ingested
debris can cause either of the two check valves to
malfunction.
• If pump does not prime after 30 seconds, try to
loosen check balls by pushing pump priming button
or by tapping the inlet valve with a small wrench as
the sprayer is stroking.
NOTICE
Excessive shock will fracture or cause damage to
pump.
NOTE: To verify inlet valve ball is sticking, unscrew
valves from pump and check them.
If sprayer continues to cycle (motor and pump run) after
you release gun trigger, pump valves may be obstructed
or worn. Valve repair kits are available from Graco/Mag-
num authorized service dealers.

Pump Packings

When pump packings wear, paint will begin to leak
down outside of pump.
• Replace pump packings at first sign of leaking or
additional damage could occur.
• Purchase a pump repair kit and install according to
instructions provided with kit.
• Consult a Graco/M
AGNUM
Maintenance and Service
ti15972a
authorized service center.
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