Maintenance and Service
332689D 27
Maintenance and Service
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 spray-
ing.
• 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.
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
(X5 and X7 only) or by tapping the inlet valve with a
small wrench as the sprayer is stroking.
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 addi-
tional damage could occur.
• Purchase a pump repair kit
and install according to
instructions provided with kit.
• Consult a Graco/M
AGNUM
authorized service center.
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.
NOTICE
Excessive shock will fracture or cause damage to
pump.
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