Graco 334466A Manual De Usuario

Routine maintenance is important to ensure proper operation of your sprayer. Maintenance 

includes performing routine actions which keep your sprayer in operation and prevents trouble 

in the future.

Inspect/clean sprayer filter, fluid inlet strainer, and gun 

filter.

Daily or each time you spray

Inspect motor shield vents for blockage.

Daily or each time you spray

Fill TSL by adding through TSL fill point.

Daily or each time you spray

Inspect motor brushes for wear. Brushes must be 1/2 in. 

(13mm) minimum length. NOTE: Brushes do not wear at 

the same rate on both sides of motor. Check both brushes.

Every 1000 gallons (3785 liters)

Check sprayer stall. 
With sprayer gun NOT triggered, sprayer motor should stall 

and not restart until gun is triggered again. 
If sprayer starts again with gun NOT triggered, inspect 

pump for internal/external leaks and check prime valve for 

leaks.

Every 1000 gallons (3785 liters)

Throat packing adjustment
When pump packing begins to leak after extended use, 

tighten packing nut down until leakage stops or lessens. 

This allows approximately 100 gallons of additional 

operation before a repacking is required. Packing nut can 

be tightened without 0-ring removal.

As necessary based on usage